OSCAM Air Image

New Features in OSCAM Air v4.2

OSCAM Air Version 4.2 incorporates a number of updates since OSCAM Air v4.0, but remains very similar in terms of the core operating and support core processes.

A major change in OSCAM Air v4.1 was the inclusion of a Legacy Aircraft Mode which allows aircraft retirements and attritions to be specifically defined on a year by year basis. This supports cost estimating for the remaining life of legacy aircraft programs where retirements do not follow standard age and flying hours based retirement patterns.

Several new user interface features were added in OSCAM Air v4.2 including combining the OSCAM Air simulation, and the Data Management Tool into a single application, enhancements to the Uncertainty and Sensitivity tools, and expanded Throughput information in the results table.

Loading Previous OSCAM Air Data Records

Data records created using OSCAM Air v4.0 or OSCAM Air v4.1 can be loaded directly into OSCAM Air 4.2, but OSCAM Air 4.2 data records cannot be saved into those earlier databases. Data records created using OSCAM Air v3 must be converted into OSCAM Air v4.0 format using the Air v3 to v4 Conversion Tool.

In DMT mode, any OSCAM Simplified (.WBS) and Detailed (.WBD) WBS files saved in OSCAM Air v4.0 onwards can be loaded into the OSCAM Air 4.2 without changes.

Combined OSCAM Tools

From OSCAM Air 4.2 the separate simulation (SIM) and Data Management Tool (DMT) applications have been combined into a single application. The single application has SIM and DMT modes which mimic the functionality of each of the separate applications. The current mode is shown at the left side of the toolbar as a button displaying the mode name, and the mode can be changed by clicking on the button and selecting the other mode from the drop-down menu. You can also change the mode via the Tools/OSCAM Mode menu item.

When using the DMT, WBS values still need to be transferred to the main OSCAM data record using the Transfer button, but it is no longer necessary to save the data record before running it. More...

Inflation Categories for Inputs and Results in Long Description

From OSCAM Air 4.2 the long descriptions for cost inputs and results items include the relevant inflation category at the end of the description.

Individual Throughput items in Results

From OSCAM Air 4.2 all individual Throughput items are listed as an extra level beneath each Throughput results line. These items display the Throughput number, CAPE element and user specified descriptions as well as the total and annual costs for each item.

Individual Throughput results items differ from standard results items in that they may differ between results sets. Standard results items follows a fixed definition, so they are the same for each results set, allowing the graph to display comparative results across all (selected) results sets.

Individual Throughput items may differ so may not be in all results sets. The graph will only show the individual Throughput costs for the currently viewed results set, and for any other selected results set that contains the Throughput item with exactly the same name. Individual Throughput items will be retained when using the Delta and Aggregations tools. Costs will be combined for any Throughput items from the different results sets that have the same name and inflation category, otherwise they will be listed separately. In a Delta results set the Throughput items in the subtracted results set will be shown as negatives. More...

Copying/Exporting Simulation Results

In previous versions of OSCAM Air, copying results to the clipboard to paste to another application took a copy of the results table as displayed in OSCAM, with the number of decimal places displayed and the visible level of breakdown. In order to get results with full decimal places it was necessary to use the File/Save Results option to save the results to a comma separated format file that can then be loaded into an application such as Microsoft Excel.

OSCAM Air 4.2 introduces much more flexibility into copying and saving results. The results table has a "Copy to Clipboard" option that functions as it did in earlier versions of OSCAM Air. Another right-click menu option "Copy to Clipboard with Options" provides a dialog that allows more flexibility in how the copied results are formatted, including decimal places, full or selected results breakdown, how individual throughput items are represented, and label options. The File/Save Results option is still available but provides more options in terms of file format (comma separated or tab delimited), throughput results layout and labeling. More...

Simulation Run Optimization

From OSCAM Air 4.2, optimization has been applied to simulation runs so that the number of calculations required scales with the number of years of aircraft introductions. Before OSCAM Air 4.2 a run involving 10 years of introductions was likely to take a similar time to a run involving 50 years of introductions, but new optimization means that the runs with fewer introduction years will be quicker. A run with year of introductions will be approximately 5 times quicker than a run with 50 years of introductions (for the same total program length). This optimization will make a significant difference when performing Uncertainty Tool runs.

New Probability Distributions in the Uncertainty Tool

Three new probability distributions were added to OSCAM Air 4.2:

Correlation for Uncertainty Tool Inputs

From OSCAM Air 4.2, it is possible to specify the correlation between pairs of uncertainty inputs. When defining correlation between two uncertainty inputs, one input will be Independent and the other input will be Dependent. The Independent input sample will be generated first and then the Dependent sample will be generated so that it displays the required degree of rank correlation. Correlation relationships can be defined in the Set Sampling Distribution dialog for the Dependent input. The Independent input is selected by clicking the ellipses button next to the Correlated Input name at the bottom of the dialog. A list of potential uncertainty inputs is displayed from which the correlated input can be selected.

It is possible to develop a series of correlation relationships where A is correlated with B, and B is correlated this C (and so on). OSCAM monitors these chains of correlation relationships and prevent selection of correlation relationships that would create circular references in the chain. The Correlated Input Selection Dialog will allow the chains to be viewed. When OSCAM generates correlated random samples it ensures that all sample are created in the correct order so that the independent input sample is always created before the dependent input sample in a correlation relationship, and manages sequences of chained relationships.

When an uncertainty analysis contains any correlated inputs all random samples will be created before the first replication is run so that the random samples with the appropriate rank correlation can be generated. The sampling approach that OSCAM uses for correlated inputs is very efficient and adds very little time on to an uncertainty analysis even if a large number of correlated inputs are specified. If no correlated inputs are specified then OSCAM will only generate the random samples before each sample so as to provide flexibility in changing the number of replications during a run. More...

Review and Export Uncertainty Input Sample Data

From OSCAM Air 4.2 it is possible to review and export the input data samples that will be used for an uncertainty analysis. The review can be done before the uncertainty analysis is run and after completion. It is also possible to view input sample data while a run is paused but this will only display random sample values generated up to that point (if any inputs are correlated this will be the full set of random samples, but if no correlation is defined then sampling will only be done to generate the values needed for the next replication).

It is also possible to get a correlation report that specifies the target rank correlation between each pair of correlated inputs and the Spearman's Rank Correlations and Pearson's Correlation Coefficients achieved, and to view a heat map matrix of actual correlations between every input with a correlation relationship.

The input sample data, correlation report and correlation matrix can all be copied to the clipboard, allowing the information to be pasted into other applications. More...

Pausing Uncertainty Runs

From OSCAM Air 4.2 there is the ability to pause an uncertainty run, review the results and then continue or stop the run. This allows interim uncertainty results to be reviewed during a run. If any correlation has been defined between uncertainty inputs then the maximum number of replications is fixed. However, if no correlation is defined then it is possible to change the number of replications while an uncertainty run is paused. This allows uncertainty results to be reviewed and the number of replications to be increased if it is deemed necessary. There is also an option to pause the uncertainty run after a specified number of replications rather than stopping the analysis. More...

Uncertainty and Sensitivity Tool Inputs Include Tables and Throughput Items

From OSCAM Air 4.2 the inputs available for uncertainty and sensitivity analysis have been expanded to include annual cost profile rows and Throughput sector inputs. Where inputs allow user specified labels for the inputs then these will be displayed. Throughput inputs will also include the allocated CAPE element or non-O&S cost element as part of the displayed name. More...

Expanded Options for Exporting Uncertainty Results Data

Uncertainty results data can be copied to the clipboard and pasted to another application for further analysis. OSCAM Air 4.2 expands the options for selecting which output lines are exported, the order of the results (lowest to highest or replication order) and the labels that are included. More...

DMT Mode Changes - Graphical Display

Prior to OSCAM Air 4.2 the sub-systems graphical display labels showed the full component names as labels. These labels could be long and obscure much of the graph. From OSCAM Air 4.2, the default labels just show the WUC code. The full name will be shown for any bar as a tooltip when hovering the mouse cursor over the bar. The full component names can be permanently displayed via the graph's right-click menu.

Other Changes Since OSCAM Air v3

OSCAM Air v4 was created after an extensive review of the underlying business processes for operating and supporting an aircraft Type/Model/Series. It has been developed in close cooperation with NAVAIR. The user interface has also undergone improvements. Several incremental changes have been made since OSCAM Air v4.0, which have been inherited by the latest OSCAM Air model.  The key changes since OSCAM Air v3 are described below.

User Interface Visuals

The color scheme has been changed and visual aspects of OSCAM Air were updated in OSCAM Air v4.1. Most aspects of the user interface operate as they did in OSCAM Air v4.0.

Load and Save Wizards

In OSCAM Air v4.1 Load and Save Wizards were completely re-designed. It is much easier to re-load previous records using the shortcut list, and the Save Wizard now has a shortcut list for selecting .USE databases to save to. A status column on the left shows your progress through the wizard, and relevant information on your selection or the current database/record details. The Next button has been removed, so instead of choosing your options with a radio button and clicking next, you click directly on a button to choose your option. Items on shortcut list can be selected with one-click.

At the final stage of the Load Wizard you will see a message displayed on the panel if you have loaded a record from an older database. You will also see details of any aspects of the data that you should review because of changes between the older version of OSCAM Air and the current version. More information on the Load Wizard...

The Save Wizard has a similar look and feel to the Load Wizard. Several improvements have been made over the previous Save Wizard such as the ability to select previous databases from a shortcut list to save to, and a clearer and more intuitive process for creating a new OSCAM database. More information on the Save Wizard...

Annual Cost Profile Tables

The Sustaining Support, Continuing System Improvements, Indirect, UAS and Throughput input sectors contain annual cost profile tables. These allow particular costs to be specified for any year. It is possible to include costs before the first aircraft comes into service and after the last aircraft retires. To make it easier to see which years have aircraft in the program the header column of the annual cost profile tables are color-coded with a black background being used to indicate years before and after there are aircraft in the program.

When running a simulation, the Auto duration option will take into account any costs specified in annual profile tables after the last aircraft has retired to ensure that the simulation duration includes all of those costs.

Program Profile - Introduction Table

The Introduction table was extended from 30 to 50 years in OSCAM Air v4.1 to allow the representation of programs with very long production periods.

Program Profile - Aircraft Allocation to Environments

The Aircraft Allocation to Environments and all other annual tables in OSCAM Air v4.1 were extended from 70 to 80 years to allow the representation of programs with very long durations.

Program Profile - Legacy Aircraft Mode

Standard OSCAM Air v4 retirement processes use age (including life extension in modernization programs) and the option of flying hours as the basis for determining when aircraft will retire from service. Attrition rate is based on the number of aircraft per 100,000 flying hours, or a percentage per month for each environment. These processes work well for a new program since they provide a logical basis for estimating retirement and attrition rates. However, there is difficulty in representing programs that are nearing the end of their life, where the service lives of aircraft may be nothing like the intended life - some retired early, some attrited, and others are subject to life extensions, particularly if the replacement Type-Model-Series is delayed. The Legacy Aircraft Mode option allows the retirement and attrition schedule to be specified explicitly on an annual basis.

In OSCAM Air v4.1 a new "Legacy Aircraft Mode" sub-tab was added to the Program Profile, between the existing "Introduction" and "Environment" tabs. This contains an "Enable Legacy Mode" checkbox, and a table with years down the side and columns that allow the number of retirements and attritions to be specified per year, as well as a column that allows Service Life Extension Program (SLEP) costs to be specified by year. The table also includes a number of information columns to help define the schedules, and there is diagnostic information to ensure that the number of aircraft introduced and leaving service are balanced. More...

Maintenance - Other Maintenance Costs

In OSCAM Air v4.1 the Other Maintenance Costs tab was created to support use of the CAPE 2014 3.5 Other Maintenance Costs category. This category can be used for maintenance costs that are not covered by any of the other maintenance categories. Since this is a more open category the Other Maintenance Costs tab includes a Description box that allows documentation on the costs that are represented.  The costs are split into Government costs (which use the OMNLF Comp inflation category) and Contractor costs (which use OMN Purchases). For each there are a variety of inputs with different cost drivers: $/Year, $/Aircraft/Year, $/Flying Hour, $/Squadron/Year (for each of the operating environments). There is also an annual cost profile table with a row for Government and a row for Contractor costs. More...

In addition, CAPE element "3.5 Other Maintenance Costs" is available in the Throughput sector in the drop-down list of CAPE elements to assign Throughput costs to. CAPE element 3.5 can also be included in the Results Summary Sand Chart and is available as a view for the Uncertainty Tool results.

Throughputs - Expansion in the Number of Throughput Items

OSCAM Air v4.1 expanded the number of Throughput items to 30 structured items (where costs can be applied to different cost drivers) and 40 rows of annual table Throughputs. More...

CAPE '14 Cost Output Structure

OSCAM Air v4.0 is based on the CAPE '07 operating and support cost structure, while OSCAM Air v4.1 and later use the CAPE '14 structure.  As well as the revised results structure, the change also affects the CAPE element selections in the Throughput sector, the Uncertainty Tool results and the Summary Sand Chart which allow the 2nd CAPE Maintenance categories to be selected which have expanded from 3 to 5 elements (3.1 O-Level Consumables and Repair Parts, 3.2 Depot Level Repairables, 3.3 I-Level Maintenance, 3.4 Depot Maintenance, 3.5 Other Maintenance Costs).

Right-click Menu Options for Selecting the Then Year, Aggregation and Delta Tools

Since OSCAM Air v4.1 the Then Year $, Aggregation Tool and Delta Tool can now be accessed via a right-click menu on the results table, as well as in the top Tools menu. The right-click options will take account of the currently selected results set for defaults on first entering the tool. For example, the Delta Tool will always have the current results set as the selected item in the first drop-down list, and the Aggregation Tool will default to the Then Year $ results set filter of the current results set is in Then Years.

Inflation Tables

OSCAM Air v4 and later offers a choice of inflation table versions. It is generally recommended that the most recent set of inflation tables is used but for some studies it may be necessary to produce comparisons using a previous set of inflation tables. The selection of inflation tables can be made in the Load Wizard or via the drop-down selection on the main toolbar. The text of the selected inflation table version will be displayed in red if this is not the latest set of tables.

While it is possible to just update the inflation tables themselves, usually a complete new Runtime version for OSCAM Air is released that contains the updated inflation tables. This usually occurs in February or March just after the NCCA Joint Inflation Tables are released.  More…

Record Displays in Load Database and Save Database Wizards

While OSCAM Air v4.1 completely re-designed Load and Save Wizards, some features introduced in OSCAM Air v4 have been retained. Data record names are displayed in alphabetical order by default. Data records have a date/time stamp applied when they are saved and this date/time is displayed in the Load Database Wizard. There is an option to display the records by save date/time order or to be unsorted (creation date order). The sort order is retained between sessions.

Load Database Wizard

Load Database Wizard Image

F1 Help Diagrams

The F1 Help diagrams now have a drop-down box in the top-right corner that allows a different diagram to be viewed. This means that other related sector diagrams can be viewed more easily. The F1 Help diagrams can be closed by pressing the Esc key. More…

Undo Functionality

It is now possible to undo previous data changes. This can be done via the undo button to undo the last change, or previous changes can be selected from a pull-down list. Alternatively, double-clicking on an input will show the traditional dialog to select values from Primary or Reference data records, to which an extra tab has been added to allow previous data values to be selected. Data tables also have a list of undo items.

A redo button and pull-down has also been added to reverse undo actions. The list of undo and redo actions is cleared when a new data record is loaded or the cost base year is changed. This is to prevent reverting to a previous value that was for a different cost base year. More…

Source Text Editing

The source text, displayed next to inputs, can now be edited without having to change the data values. Double-click on the source text to start the editor. A previous SourceID value can be selected from the list or the current text can be edited. Any new text is added to the SourceID list but will not change the default text that is displayed when any data value is edited.

The Set SourceID dialog, available from the Tools menu, now allows the source text to be set globally for all inputs by clicking the "Apply to All Existing Inputs" button. More…

Export Input Data

An additional save option has been added to the File menu that allows input data to be exported into a Microsoft Excel (or other spreadsheet) friendly format. The Export Data option produces a tab delimited text file that can be opened using Excel and which consistently displays data items in the same cells so that a template for extracting or using data can be created.

File Menu - Export Input Data

Export Input Data Image

Input Sector Structure

The structure of input sectors has been changed to more closely reflect the Office of Secretary of Defense (OSD) Cost Assessment and Performance Evaluation group (CAPE) 2007 O&S cost element structure. There is also a new sector that includes inputs that are specific to Unmanned Air Systems. These sectors are retained in the CAPE 2014 structure used by OSCAM Air v4.1.

Command Bar - Sectors

Sector Buttons Image

Program Profile - Cost Deferral

In some scenarios, the operating and support costs are only of interest beyond a certain year. This may be for budgeting purposes or if there is a major change in the way that the aircraft are operated at a specific point in time. The Cost Deferral option can be set so that operating and support costs are only incurred beyond a certain year in the simulation. Setting this option does not affect results from simulations that have already been run, only results from future simulation runs. More…

Program Profile - Aircraft Introductions and Allocations

The Program Profile has had a major overhaul in the way that data is specified for aircraft introductions, allocation to environments and flying hours. There are also some new tools to speed up the process of configuring allocation to environments.

The Aircraft Introductions table now has aircraft specified annually rather than quarterly. There is an option to introduce all aircraft at the start of the year or to introduce them evenly throughout the year. The retirement of aircraft is handled much the same as in OSCAM Air v3, except that there is now an option to specify a fixed Service End Year. If this option is selected then all remaining aircraft will be retired at the end of the specified year.

OSCAM Air v4 uses a single table for allocation of aircraft to all environments. Data is entered for the allocation of aircraft in each year rather than the previous approach of entering the change from the previous year. Excess Inventory in each year is automatically calculated as the difference between the aircraft supply and the total allocation to all environments. An Aircraft Allocation Tool has been created that speeds up the process of creating an initial profile for allocating aircraft to environments. The allocation of aircraft to environments can be specified for peak supply, and the tool will automatically determine the number of aircraft to allocate during the ramp-up and ramp-down periods in order to keep allocation in the same proportions.

A Graphical Allocation Tool shows a graphical view of aircraft allocation across the environments. It allows a particular year to be selected, and aircraft allocation can be shifted between environments using + and - buttons.

A "Prevent Over Allocation of Aircraft" switch has been added that helps to protect against allocating more aircraft to environments than there are aircraft in the program. If the option is switched on then the data will be displayed in red text in any year with over allocation of aircraft. It is not possible to specify over-allocation in the Aircraft Allocation Tool or the Graphical Allocation Tool. It is not possible to run the simulation model while there is over allocation. What-if scenarios with over allocation can still be investigated by turning the "Prevent Over Allocation of Aircraft" switch off. More…

Program Profile - OpTempo

The OpTempo tab has a new option for specifying annual flying hours for environments as well as providing diagnostic graphs that provide better feedback on the implication of data being entered.

A new set of inputs has been added to the OpTempo section allowing maximum monthly flying hours to be specified for aircraft. This replaces the built-in limit that OSCAM Air v3 used which was twice the average flying hours value.

The Average Flying Hours option allows data to be specified in the same way as in OSCAM Air v3. The Deployed % table provides information on the number of aircraft allocated to the environments each year and takes account of ramp-up and ramp-down during a year. The diagnostic chart shows the number of deployed and non-deployed aircraft that will be allocated each year (assuming no shortfalls).

The Environment Flying Hours option provides a new way of specifying flying hours. It allows the deployed and non-deployed hours to be specified each year for each environment. Aircraft allocated to the environment will fly sufficient flying hours to meet the environment targets, up to a specified maximum monthly flying rate. A diagnostic graph shows the expected monthly flying hours per aircraft and highlights where this is greater than the maximum.

A new section in the results table shows any shortfall between the target flying hours and the hours achieved. This can occur if aircraft shortfalls mean that aircraft are flying at maximum monthly limit and are still unable to meet the environment target. This is applied for the Environment Flying Hours option or the Average Flying Hours option when the Meet Planned Total Flying Hours switch is selected. More…

Unit Level Personnel

Unit Level Personnel types have been expanded for Mission Personnel and Maintenance Personnel to include civilians and contractors. It is also possible to select between a Simplified mode (similar to OSCAM Air v3) where number of personnel is specified along with average salary, or a Detailed mode where number and salary can be specified by pay grade. Standard pay grades are used for military personnel and editable pay grades are available for civilians and contractors.

The Indirect Sector no longer has inputs for Permanent Change of Station (PCS). These costs should now be included as part of the fully burdened salary costs specified in the Personnel sector.

Turnover % inputs have been removed from Unit Level Personnel and replaced with a new mechanism in the Sustaining Support sector. Also the changes to the representation of training in OSCAM Air v4 requires that personnel specified for the FRS (Fleet Readiness School) environment should contain trainees as well as trainers.

There are no longer inputs for Part-Time Reserves. Full-time equivalents should be used when entering personnel data for the Reserves environment.

AIMD/MALS personnel specification has been removed from the Personnel sector and can now be found in the Maintenance sector, which reflects where those personnel costs are captured in the output structure.

Contractor Logistics Support to O-Level maintainers can still be specified in the Personnel sector. This mechanism also allows the number of maintainers in each squadron to be reduced during the CLS period. More…

Operations - Aircraft Disposal and Salvage Costs

Aircraft disposal and salvage inputs have been moved from the Operations sector into the Program Profile sector since they are more closely related to the aircraft lifecycle than to operations. Salvage Cost is replaced by Attrition Cost and the Disposal Cost is no longer applied to attrited aircraft.

Operations - Mission Support Supplies

Mission Support Supplies has been moved from the Operations Sector to the Maintenance sector. This better reflects where the cost outputs are reported, under 3.1.1 O-Level Consumables and Repair Parts Costs. The input can be found on the Support Supplies & Equipment tab.

Maintenance - Unscheduled and Scheduled

Scheduled Maintenance has been expanded to mirror the capabilities of Unscheduled Maintenance.

The simplified and detailed options can now be specified independently for each of the Unscheduled/Scheduled and Aircraft/Engine combinations, allowing a mixture of representations to be used. Additional aging curves have been added so that there are now separate AVDLR Cost Growth Factors (DLR for engines) and Consumables Cost Growth Factors rather than the same aging curve applying to all.

The aging curves have been changed so the Aging Actions Factor curve can be specified using 21 data points (5% increments) rather than the previous 11 data points. The Cost Growth Factors use the year on the X-axis with 71 data points. Data can be pasted from Excel into any of the aging factor tables.

All of the aging curves also have the option to describe the curve in terms of a quadratic function rather than a table of factors. More…

Maintenance - AIMD/MALS Personnel

AIMD/MALS personnel inputs have been moved from the Personnel sector to an I-Level Personnel tab within the Maintenance sector. There is no longer a Simplified/Detailed choice for AIMD/MALS personnel. Instead there is a General tab and the ability to specify between 0 and 20 facilities. This mechanism allows general costs to be specified at the same time as specifying facilities. The previous Simplified option can be replicated by specifying costs on the General tab and selecting 0 facilities tabs.

The number of types of maintenance personnel associated with each facility has been increased to include civilians and contractors.

Contractor Logistics Support to I-Level maintainers can now be specified independently for each facility rather than applying to all facilities. This mechanism also allows the number of maintainers in the facility to be reduced during the CLS period. More…

Maintenance - PDMs and Emergency Repair

Aircraft and Engine PDMs have Simplified and Detailed options. The Simplified option allows annual costs per aircraft to be defined for Government and Contractor PDMs. There is also an input to define the percentage of each aircraft's life spent in PDMs. For the Detailed PDM representation the number of PDM tabs has been expanded with some that have a frequency specified in flying hours and other in months.

The frequency of Emergency Repair actions is now specified in terms of Flying Hours rather than the Actions/1000 Flying Hours used in OSCAM Air v3. This makes it consistent with the specification for flying hours based PDMs.

The PDMs and Emergency Repair tabs have more options for specifying Contractor Logistic Support costs. As well as the $/Action and $/Year inputs there are now also $/Aircraft/Year and $/Flying Hour inputs.

There is no longer the ability to specify a capacity constraint for PDMs and Emergency Repair. Aircraft will start the PDM or Emergency Repair as soon as it required. More…

Maintenance - Modernization

Modernization inputs have been moved to the Continuing System Improvements sector.

Maintenance - Support Supplies & Equipment

Support Supplies has been moved from the Operations sector to the Maintenance sector, with its results reported under 3.1.1 O-Level Consumables Costs. Support Equipment Repair has been moved from the Scheduled Maintenance tab. The number of inputs has been expanded to provide more flexibility in how these costs are driven. More…

Sustaining Support Sector

The Sustaining Support sector contains inputs that were previously found in the OSCAM Air v3 Training sector as well as some inputs that were in the Other sector.

The training inputs have been changed considerably in order to better reflect how these costs are captured by NAVAIR. Implicit in this structure is the notion that the Personnel sector inputs for FRS (Fleet Replacement Squadron) should include trainees as well as trainers.

The Sustaining Support sector representation of training includes Initial Pilot and NFO training, A-School training and C-School training. A Simplified option allows training costs to be specified as a per squadron cost for each environment and a profile table (similar to the table in the Throughput sector) that allows costs to be specified for particular years. A Detailed option has inputs for the proportion of personnel in each squadron that require each type of training, the number of training days per person and the cost per training day. The Sustaining Support outputs also include the salary costs of trainees.

The Simulator Operations tab allows for Training Systems Operations costs to be specified as a $/Year cost and/or a $/Squadron cost. There is also an annual cost table that allows up to 5 categories of costs to be specified. This works in a similar way to the annual table in the Throughput sector, except that it feeds the costs into the appropriate part of the cost breakdown structure in the results.

Other Sustaining Support costs includes Sustaining Engineering, Program Related Logistics, Technical Data, Support Equipment Replacement and Operating Equipment Replacement. More…

Continuing System Improvements Sector

The Continuing System Improvements sector contains Modernization which was previously in the Maintenance sector and Software Maintenance which was previously in the Other sector. New inputs for Tech Refresh have been added.

The Simplified/Detailed option for Modernization no longer exists in OSCAM Air v4. Instead, a Recurring tab is available for Modernization that contains the same $/Aircraft/Year input that was available in the Simplified option along with a new annual cost table that allows up to 5 categories of costs to be specified. This works in a similar way to the annual table in the Throughput sector, except that it feeds the costs into the appropriate part of the cost breakdown structure in the results. Recurring costs can be specified in conjunction with, or instead of, the five Modernization programs.

The start years for the Modernization tabs can be specified in any order, and there is no longer an assumption that the programs will take place in order of 1 to 5.

Each of the specified Modernization tabs has additional post-modification impacts. The impacts are now specified separately for Aircraft and Engine. Also, the Parts Cost Factor has been replaced by a DLR Cost Factor and a Consumables Cost Factor. More…

Indirect Sector

The Indirect sector has been restructured to have tabs for Installation Support, Indirect Personnel Support and General Training and Education. This replaces the previous inputs for Base Operating Support, Real Property Maintenance, Installation Support Non-Pay and Other Non-Pay. Permanent Change of Station (PCS) costs have been removed from OSCAM Air v4. These costs should now be included as part of the fully burdened salary costs specified in the Personnel sector, as recommended by the OSD Cost Analysis and Program Evaluation (CAPE) office. More…

Unmanned Air Systems Sector

The Unmanned Air Systems (UAS) sector is new in OSCAM Air v4. It contains inputs for elements that tend to be unique to UAS programs, such as for Ground Stations, Satellite use and IT Infrastructure.

The UAS sector outputs are reported in the appropriate parts of the CAPE cost elements structure rather than being reported as a self-contained group of costs. For example, Satellite and IT Infrastructure costs are reported as elements under 2.2 Purchased Services Costs, while Ground Station Software Maintenance costs are reported under 5.2 Software Maintenance and Modifications Cost. The UAS F1 Help diagrams contain references to all outputs related to the UAS sector. More…

Throughput Sector

In OSCAM Air v4 it is now possible to select where the costs from each item specified as a throughput will appear in the output structure. The categories include Non-O&S, Disposal, and the top-level CAPE categories (Unit Level Personnel, Unit Operations, Maintenance, Sustaining Support, Continuing System Improvements, Indirect).

An inflation appropriation category can now be associated with each Throughput item. This allows Throughput data to be updated automatically using the correct category when the Cost Base Year is changed and in the calculation of Then Year $ results.

There is also a new category of Throughput data allowing costs to be specified as $/Flying Hour. More…

Results Screen - Layout

The basic functionality of the results screen has stayed the same as in OSCAM Air v3. However, the costs are laid out using the CAPE 2007 structure (updated to CAPE 2014 structure in OSCAM Air v4.1 and later). Some of the non-cost outputs have been re-arranged to make them easier to find. The top line of the results has been changed to show the average number of aircraft in the program in each year rather than the number at the end of the year. This allows the ramp-up and ramp-down effects to be seen more easily and provides the basis for more accurate calculations of per aircraft Throughput costs. There is also a new line showing the total flying hours each year. This is used in the calculation of $/Flying Hour Throughput costs.

Long descriptions are displayed for results lines. The long description will be displayed in the bar at the bottom of the screen for the results line that the mouse cursor is over.

A new summary panel shows the cost year of the results data, the total Operating & Support Cost, the total Non-Operating & Support cost and diagnostic percentages on any aircraft or flying hour shortfalls. These diagnostics can be used to quickly check if the environment aircraft requirements can be met and if the required hours are being flown.

Results - Summary Panel

Results Summary Bar Image

Results Screen - Summary Sand Chart, Color of Money and Pie Chart Views

Right-clicking on the results table has similar options to Air v3. However, three new views have been added. The Summary Sand Chart shows an annual stacked bar chart of cost categories plotted against aircraft or flying hours measures. The Color of Money view shows an annual cost table by appropriation category. The Pie Chart view shows a pie graph of the top-level CAPE items and labels showing $M or % values for each wedge. More…

Results Screen - Right-Click Menus on Results Tabs

The results tabs at the bottom of the results table now display a popup menu when right-clicking the mouse on them. This allows quick access to view/change the results description, delete a results set, and to specify whether or not that results set is displayed on the graph. There is also an option in the popup menu to re-load the input data that was used to generate the results set. This will only be available if the data record had no unsaved changes when the simulation was run. If the data record has been saved over after the results were generated then a warning will be displayed but it will still be possible to re-load the data.

Results - Results Tab Right-Click Menu

Reload Input Data Right-Click Image

Uncertainty Tool

The Uncertainty Tool has been extended to allow more than 20 inputs to be selected, and it also now allows a variety of probability distributions to be used. To help in the selection of a probability distribution, a graphical display will show the shape of the distribution for the selected parameter values. The input data for an uncertainty run is now saved as part of the input data record rather than the workspace. Making changes on the Uncertainty Input form will cause the record name to go red, indicating unsaved changes.

It is possible to select a specific random number stream, or for the random number stream to be set automatically. Performing two uncertainty runs with the same random number stream and same number of replications will produce identical results. The Uncertainty Results form reports the random number stream that was used for the run. Uncertainty results can now be viewed for Total O&S + Non-O&S Costs, Total O&S Costs, and for each of the first level CAIG elements. The data to be viewed can be selected from a drop-down box in the top-right corner of the Uncertainty Results form.

The S-Curve view now has points overlaid for each 5th percentile. Hovering the mouse cursor over any of the percentile points will display the $M value for that percentile. A new table view has been added that shows the values against every 5th percentile. There is a right-click menu option to print this table or copy the table data to the clipboard. There is also a right-click menu option for any of the graph views or the table to copy the summary statistics to the clipboard. More…

Default Data File Locations

The default OSCAM databases directory structure is no longer placed in the Program Files directory. Some operating systems and PC configurations prevent writing to the Program Files directory for accounts without Admin rights. When OSCAM Air v4.1 is first run there is an option to choose the location of the databases directory. The default option is to place the databases directory structure in the user's Documents directory. The top level directory is called 'OSCAM' with a sub-directory called 'OSCAM Air v4.1 Databases'. There is the option to change this location or not to create a directory structure at all. It is also possible to create a databases directory structure at any time by selecting the option in the Help Menu.

Data Management Tool Work Breakdown Structure

The work breakdown structure (WBS) in the Data Management Tool (DMT) has been expanded to include Scheduled Maintenance as well as Unscheduled Maintenance. The changes to the inputs in the WBS reflect the changes in the Maintenance sector. The WBS also allows multiple quantities of components at any level of the tree structure (previously it was only allowed at the lowest level).

Transferring DMT Data

The two-stage transfer process used by OSCAM Air v3 DMT has been replaced with a single-stage process for OSCAM Air v4 DMT. Selecting the Transfer button will display a dialog with options to update items already selected as *DMT or to transfer to specified sub-sectors. The Maintenance sector allows each Unscheduled/Scheduled and Aircraft/Engine combination to have its Simplified or Detailed option set separately. The Transfer process allows the choice of which of these sub-sectors are populated with WBS data. As part of the transfer process the detail setting of the sub-sector will be changed to match the setting of the WBS.

Data Management Tool - WBS Data Transfer Dialog

DMT Transfer Image