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ANNEX F Common Solution/Concept List (U)
Air Force Mission Area Plan (MAP)

F-117

 

F117001--APU-102/A NAVIGATION & WEAPON Computer

DESCRIPTION: The APU-102/A is the aircraft’s navigation and weapon system computer. There are three computers per aircraft. This is a form, fit, function upgrade to the existing computers.

JUSTIFICATION: The current computers have less than four percent spare memory remaining. Future improvements require more memory. Both memory and speed are required to support the Ring Laser Gyro Navigation Improvement Program plus Global Positioning System (RNIP+). This mod increases computer memory from 256K to 2M, and incorporates a newly designed lithium battery for non-volatile memory storage and fault notification.

PROGRAM ELEMENT: PE27141

ISSUES: If not funded, we will not be able to incorporate the RNIP+ mod, as current computers will not support new memory and speed requirements. (vanishing vendors, technology, obsolete part, etc).

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: N/A Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

F117003--LOW OBSERVABLE IFF ANTENNA

DESCRIPTION: Flush mounted antenna to provide Identification Friend or Foe (IFF), without impacting current aircraft radar cross section (RCS) signature. This modification replaces the current blade antenna technology, which adversely impacts the aircraft RCS signature.

JUSTIFICATION: Lessons learned from F-117 operational experience during Operation Desert Storm identified the requirement for LO antennas. This allows full IFF capability while maintaining aircraft stealthiness. The design will eliminate the moving mechanical parts, improve reliability, and eliminate radar cross section highlighting while the antenna is extended.

PROGRAM ELEMENT: PE27141

SCHEDULE: Funding line extracted from FY98 PB. Cost data provided by AFMC. Procurement and delivery estimates taken from best available data.

ISSUES: Work around provisions are necessary since no IFF capability is currently possible during operational employment. All funding was offset in the 98 POM--planned program start has now been deferred to FY04, but should start in FY02.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: N/A Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

F117005--RLG Nav Improvement Program Plus GPS (RNIP+)

DESCRIPTION: Replaces the current inertial navigation system (INS) gyroscope with a Ring Laser Gyro (RLG) system and adds a Global Positioning System (GPS). The system will include a low observable antenna, RLG, and GPS unit, and integrated aircraft software.

JUSTIFICATION: The new system will be more accurate, substantially more reliable (2000 hours MTBF), require less time to repair, and reduce alignment time to five minutes. Although very accurate, the current INS is very unreliable (270 hours MTBF), requires a 45-minute alignment, and is expensive to repair. There are also operational reasons for upgrading the current system.

PROGRAM ELEMENT: PE27141

ISSUES: Failure to fund RNIP+ will prevent use of adverse weather, next generation smart weapons such as JDAM/WCMD/JASSM, which require GPS. This mod is required to meet a congressional mandate to incorporate GPS into military aircraft by FY00. Current INS is manpower intensive and repair costs are high due to aging technology. RNIP+ improves MTBF from 270 to 2000 hours, reduces mobility footprint by reducing spares level and number of ACE air conditioners required for deployment. Eliminates cost of repairing current IMUs ($115,000 per IMU).

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: N/A Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

F117016--Low cost R&M Mods

DESCRIPTION: ADC K-curve altitude correction, nose landing gear steering potentiometer adjustment, LOIS Bus Harness, APU By-Pass door standardization, APU duckbill seal replacement, Fuel system aft transfer refuel shut-off valve, DLIR shroud modification.

JUSTIFICATION: Miscellaneous low cost modifications requiring immediate attention.

PROGRAM ELEMENT: PE27141

ISSUES: Previous funding was reduced in FY98 to near zero level. All mods deferred. Intended to make the F-117A as maintenance friendly as possible. Correct funding levels would save $13.2M in FY04-15 in cost of ownership. Low cost R&M mods are a valuable tool for SPOs to provide aircraft R&M improvements for mods not expensive enough to warrant a separate mod number.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: 96-026, 96-208, 95-184, 96-210, 96-211, 96-212, 96-111

Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

F117018--LOW COST SAFETY MODIFICATIONS

DESCRIPTION: Provides for low cost modifications to improve safety.

JUSTIFICATION: These funds support engineering studies and TCTOs to the field in response to accident investigations and safety related field deficiency reports.

PROGRAM ELEMENT: PE27141

ISSUES: Failure to fund reduces capability to react quickly to safety deficiencies that could be incorporated through engineering analysis and TCTO publication.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: N/A Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

F117019--Service Bulletins

DESCRIPTION: Funds the continuation of configuration control efforts initiated in APPN 3010/BP1900. New requirements: STEMS V45 firmware installation, canopy doubler attachment, AMAD fuel tube forced retrofit, fuel dump system trapped fuel drain, main fuel overboard vent tube standardization, AMAD compartment keelson Z, left hand throttle cable reroute, torque beam high temp coating, main landing gear axle temperature paint.

JUSTIFICATION: Improves safety, reliability and maintainability of numerous LRUs, SRUs, and airframe components. Examples in progress are aural warning system mod, tailpipe cover panel, exhaust drain duct, throttle cable mod, wing fuel vent manifold, flight control system wire chaffing correction.

PROGRAM ELEMENT: PE27141

ISSUES: Required to maintain correct spare levels and fleet configuration control.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: 96-197, 198, 199, 200, 201, 202, 203, 205

Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

F117020--AFMSS A/W/E & CLOAR UPGRADE

DESCRIPTION: Funds mission planning system block cycle updates. Updates ESC directed core AFMSS changes and matches updates with the F-117 OFP cycle. Insures core functionality remains compatible with future software releases.

JUSTIFICATION: Required for the A/W/E portion of AFMSS to incorporate new requirements and correct user identified deficiencies. Required for CLOAR software updates to mission planning and routing for Low Observable aircraft.

PROGRAM ELEMENT: PE27141

ISSUES: There is currently no provision for funding updates to the AFMSS A/W/E software. Without these periodic updates, the mission planning system (AFMSS) will become non-compatible with future ESC core AFMSS releases, and the F-117 will be unable to provide effective mission planning.

REFERENCES:

MNS Number & Title: ORD Number & Title:

1067 Number & Title: 96-196 Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

 

 

F117030--Ozone Depleting Chemical

DESCRIPTION: On-board nitrogen generating system for inerting the entire aircraft fuel tank system. As fuel is used, the empty space will be filled with nitrogen. The SPO is studying a system developed for the A-12 that utilizes engine bleed air flowing through a molecular sieve to produce nitrogen.

JUSTIFICATION: Replaces the current halon inerting system with an on-board gas inerting system in the internal fuel tanks to reduce fire/explosion potential due to battle damage. The purchase of new production halon was prohibited after 1 Jun 93.

PROGRAM ELEMENT: PE27141

ISSUES: Complies with environmental directives. Any deferment of funding will increase the risk of losing an aircraft to battle damage since remaining halon reserves are insufficient to meet F-117 wartime taskings.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: N/A Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

F117032--MAINTENANCE FREE BATTERY SYSTEM

DESCRIPTION: The F-117 uses two lead acid batteries that require a capacitance check every 90 days. The maintenance free battery was developed by Wright Labs/POOX. The batteries are sealed NiCds with a "smart" solid state charger. The programmed depot maintenance schedule for these batteries is expected to be 4 to 5 years. Regularly scheduled maintenance is not required.

JUSTIFICATION: The maintenance free battery system shall replace the existing F-117A aircraft batteries and charging system. The 49FW has expressed dissatisfaction with the existing on-board battery capacity tests. The current tests do not provide a reliable indication as to the capacity and state of charge of the aircraft batteries. The "smart" solid state charger shall incorporate more robust capacity testing for the aircraft batteries. The extended life and reduced maintenance requirements of this new battery system will reduce overall F-117A cost of ownership.

PROGRAM ELEMENT: PE27141

ISSUES: Eliminates periodic maintenance requirements, and reduces associated system failures induced by battery failures. This is a potential safety of flight issue. F-117 aircraft batteries provide emergency power to the flight control system. New equipment will reduce battery consumption drastically due to the extended life of the new batteries.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: ACC 96-192 Mx Free Bat Dev. Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

F-117036--JDAM/WCMD Integration

DESCRIPTION: Integrates JDAM and WCMD weapons capability on the F-117.

JUSTIFICATION: Provides adverse weather, accurate weapons employment ability, and permits attack against certain target sets without visual target acquisition. By combining both JDAM and WCMD integration, large savings are realized through economy of scale development. Integration will permit limited envelope certification in FY03, and full envelope certification in FY04.

PROGRAM ELEMENT: PE27141

ISSUES: Funding required to expand weapons employment capability beyond current line-of-sight/fair weather limitations. Requires continued funding support of the Mil-Std 1760 mod, AP-102A mod, GPS Mod, and OFP-86 software.

REFERENCES:

MNS Number & Title: ORD Number & Title:

1067 Number & Title: N/A Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

F117051--Fuel Quantity Processor

DESCRIPTION: Refers to the fuel quantity indicating system. Changes the mother board wire wrap circuit board design to a printed circuit board design, and adds a circuit protection board.

JUSTIFICATION: The current Fuel Quantity Processor had 154 failures for CY90-94. 71% of maintenance actions on fuel quantity indicating system are caused by failure of the fuel quantity processor (FQP) of which the predominant failures are associated with the motherboard and internal failures caused by external power surges. Dominant failures, and the most costly to repair, were associated with the mother board and damage to other internal circuits from external power surges. The current Fuel Quantity Processor was designed specifically for the F-117 with a service life of 10 years.

PROGRAM ELEMENT: PE27141

ISSUES: Upgrades to printed circuits--wire wrap technology is obsolete. Cost to repair current units averages $350K/yr, with an ever decreasing MTBF. Mod start was deferred to start in FY02 due to lack of funding, but it should start in FY00.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

F117052--FUEL TANK PRESSURE SWITCH

DESCRIPTION: All present fuel system pressure sensors are within the fuel tanks requiring tank entry to change when failed. This modification will move the switches (12 per aircraft) with the highest failure rate outside of the fuel cells, for easy access when replacement is required.

JUSTIFICATION: All fuel tank/cell pressure switches are internally mounted resulting in extensive maintenance man-hours for failure replacement. Without the mod, maintainers will continue to incur excessive aircraft down time for switch replacement, excessive TNMCM time for RAM removal and fuel cell access, and maintenance induced fuel leaks.

PROGRAM ELEMENT: PE27141

ISSUES: Increased aircraft availability by reducing maintenance man-hours for failure replacement from 21 hours to 1 hour. Savings $1.52M FY08-15.

 

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: In coord Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

F117053--APU ELECTRONIC START

DESCRIPTION: The present pressurized air start system (PASS) starts the auxiliary power unit (APU). The APU then charges the PASS system for the next start. For reliability, the APU runs during all flights. Electric start (off the shelf technology) would greatly simplify system and reduce maintenance support costs.

JUSTIFICATION: To achieve a reduction in maintenance and support costs, and increase system reliability. Current APU PASS has poor reliability despite attempts to incorporate improvements. PASS component removal is time consuming causing high maintenance man-hours and mission aborts. Repair turn around time and costs are high, resulting in low spare levels and numerous MICAP conditions.

PROGRAM ELEMENT: PE27141

ISSUES: Decrease in aircraft abort rate, down time, and maintenance man-hours.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: In Progress Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

 

F117055--STEMS REPLACEMENT

DESCRIPTION: The structural tracking and engine monitoring system (STEMS) is experiencing two problems, the loss of mission data due to a lack of memory capacity and repair parts obsolescence. The STEMS electronic processor unit (EPU) will provide increased memory capacity and throughput. The new design shall incorporate off the shelf technology to the maximum extent possible to minimize future parts obsolescence problems and incorporate additional memory in anticipation of new requirements to record additional aircraft signals and/or additional sorties. It will combine the requirements of a crash recorder and an updated data recording system.

JUSTIFICATION: The STEMS EPU will be logistically unsupportable by 2004. By this time, the average EPU will have accrued in excess of 10,000 operating hours and will have been in service for approximately 20 years. The STEMS EPU has a severe problem with obsolete repair parts. To date, 14 components have been identified as having no suitable substitutes.

PROGRAM ELEMENT: PE27141

ISSUES: The lack of memory capacity on the current system is resulting in the loss of STEMS data. The loss of STEMS engine and structural data may cause operating hours to be exceeded, resulting in potentially catastrophic failures.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: In Progress Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

F117056--Life Limited Skin PANEL Replacement

DESCRIPTION: Replaces certain aircraft metal skins determined to have service life less than that of the aircraft.

JUSTIFICATION: F-117 aircraft were evaluated through formal Analytical Condition Inspections (ACIs), to determine the anticipated service life of underlying metal skins. Several of these skin panels have accelerated wear due to RAM coating removal/repair damage and acoustic loads.

PROGRAM ELEMENT: PE27141

ISSUES: Certain aircraft skin panels must be replaced as they fail due to service life. Failure to fund will ground affected aircraft and will ultimately cost more to replace.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: N/A Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

F117057--Single Configuration Fleet

DESCRIPTION: Replaces the current radar absorbing material (RAM) sheet coatings with a spray coating to provide a single configuration for RAM on all aircraft, reducing the number of low observable (LO) materials. SCF also standardizes the F-117A’s low observable leading edge configurations from seven down to one, and incorporates quick access panel technologies. Funding also contains driver (processing) costs for all mods performed at the contractor’s mod facility between FY00-04.

JUSTIFICATION: RAM maintenance remains the #1 TNMCM driver for the F-117A. The Single Configuration Fleet (SCF) modification is the fix for the high TNMCM time. SCF is a depot level modification that replaces sheet RAM with more durable spray RAM. SCF will give the 49 FW a repair capability for spray RAM which they currently do not have. Initial estimates are that SCF will reduce TNMCM time by 50%.

PROGRAM ELEMENT: PE27141

ISSUES: Current coating maintenance is highly manpower intensive, and requires seven times the amount of material than the proposed method. The current method also requires a large mobility foot print, and will continue to be the top F-117 TNMCM driver. This mod includes "depot" processing costs for all mods between FY00-04. Failure to fund would impact work on all "depot" mods in those years.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: N/A Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

F117058--Mil-Std 1760

DESCRIPTION: Develops and installs an integrated conventional stores management processor (SMP) system (ICSMS/Mil-Std 1760) in the F-117 fleet.

JUSTIFICATION: This modification will enable the F-117 to carry, program, and launch next generation "smart" weapons built to Mil-Std 1760 specifications, and enable adverse weather bombing capability.

PROGRAM ELEMENT: PE27141

ISSUES: F-117 operational availability will increase due to less restrictive weather requirements for weapons employment. Mil Std 1760 requires the continuation of current OFP-76 funding support for software integration of this hardware modification. Separate efforts are underway to integrate JDAM/WCMD munitions. Both will require Mil Std 1760.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: N/A Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

F117059--LINK 16

DESCRIPTION: Link 16 is a jam resistant, secure, data link, with standardized waveform and data format standardized for interoperability primarily among aircraft. This will provide increased mission effectiveness by providing positive awareness of network partners position, shared estimates of hostile positions and other vehicles. Fratricide reduction and mutual support are possible with this system by sharing sensor information.

JUSTIFICATION: Link 16 will provide interoperability with other CAF assets in future operations and is mandated to be installed in all CAF aircraft by senior AF leadership, in the near future. It will enable greater flexibility and mission effectiveness in the F-117 by providing aircraft with threat, weather, routing, and target updates/ changes inflight.

PROGRAM ELEMENT: PE27141

REFERENCES:

MNS Number & Title: ORD Number & Title:

1067 Number & Title: Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

F117060--AFMSS HARDWARE UPGRADE

DESCRIPTION: AFMSS Hardware Upgrade: Must replace SunSparc 10 computers, SunSparc 20 Portable computers, plus peripheral equip (scanners/printers). Migrates from 32 bit technology to 64 bit, maintaining compatibility with core upgrades.

JUSTIFICATION: Current AFMSS hardware will be degraded/obsolete by need date. The AFMSS based F-117A MPS uses COTS hardware. The lifespan of COTS hardware is limited by the manufacturer’s willingness to support the equipment after it becomes obsolete due to advances in technology. The F-117 must have operable and compatible mission planning equipment due the extremely critical nature of pre-mission planning for this aircraft. No provision has been made previously for the replacement of current equipment.

PROGRAM ELEMENT: PE27141

ISSUES: The F-117 relies completely on mission planning for mission effectiveness and survival. Any degradation of equipment related to this critical function will adversely impact its ability to operationally employ.

REFERENCES:

MNS Number & Title: ORD Number & Title:

1067 Number & Title: Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

F117061--IMPROVED ENGINE INLET GRIDS

DESCRIPTION: Replaces current grids with new ones whose improved electrical properties match those of single configuration fleet (SCF) modification.

JUSTIFICATION: The electrical properties of the current engine inlet grids were optimized for the baseline electrical performance of the F-117A. That baseline will change when the sheet aircraft radar absorbing material (RAM) is stripped off and new spray RAM is applied.

PROGRAM ELEMENT: PE27141

ISSUES: SCF mod begins in FY00 and completes in FY04. Delays in funding this modification beyond the need date will result in less that optimum electrical properties/radar cross section of the aircraft.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

 

 

F117062--FUEL TANK LEAK SOURCE SEALING PROGRAM

DESCRIPTION: Adds seal dams to fuselage and wing fuel tank structural areas where fuel leaks are prevalent.

JUSTIFICATION: Fuel System Working Group actions have identified a number of specific locations in the fuselage and wing tanks where structure configuration increases fuel leak probability, and leak history confirms these areas as the leak source.

PROGRAM ELEMENT: PE27141

ISSUES:

REFERENCES:

MNS Number & Title: ORD Number & Title:

1067 Number & Title: ACC 96-194 Fuel Tank Leak Source Seal

Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

 

F117063--BROOKLYN BRIDGE REDESIGN

DESCRIPTION: Modifies upper cap to allow removal and servicing of the outboard wing elevon actuator without having to remove the upper cap. Over time, removing and replacing upper cap leads to loose fasteners and structural damage.

JUSTIFICATION: The Brooklyn Bridge upper cap must be removed to service the outboard elevon actuator. Removing the upper cap causes the taper-loks to loosen, requiring oversizing. Loose taper-loks reduce the stiffness of the actuator support structure which could lead to a flutter condition.

PROGRAM ELEMENT: PE27141

ISSUES: If not funded, the 49FW will continue to experience high MMHs to service outboard ISAs, and structural damage to primary fittings from oversized fastener holes, requiring replacement of fittings.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: ACC96-193 Brooklyn Bridge Redesign

Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

F117064--FLIR SCREEN REPLACEMENT

DESCRIPTION: Replaces existing FLIR and DLIR screens with durable infrared windows with improved all weather capability and infrared transmission. The current screen is not all weather capable and experiences periodic manufacturing difficulties. The new window will greatly improve two-way infrared transmission and improve the front sector RCS at some frequencies.

JUSTIFICATION: The primary driver for this mod is unavailability of sufficient quantities of properly treated wire. Since we are such a small consumer of wire, manufacturers are less willing to change their production techniques to meet our specialized requirements. Acceptable wire yields of less than 50% are the norm in manufacture of FLIR screens. The current FLIR screen experiences manufacturing difficulties and is not all weather capable. FLIR screen wires are subject to in-flight damage due to rain or sand erosion.

PROGRAM ELEMENT: PE27141

ISSUES: The F-117 cannot always avoid adverse weather conditions. Damaged screens are expensive--more durable screens will provide significant cost of ownership savings.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

F117065--AIR DATA SYSTEM REPLACEMENT

DESCRIPTION: Replaces the existing pitot-probe air data system with an air data system that uses lasers or acoustics to collect flight data. There are currently four pitot-probes, located on the nose of the aircraft.

JUSTIFICATION: Pitot probes are high maintenance drivers and adversely affect aircraft signature. Significant cost savings and improvements to the aircraft radar cross section would be realized by implementing this modification.

PROGRAM ELEMENT: PE27141

ISSUES: Improved front critical signature, reduced maintenance man-hours, and eliminate altitude variation issues.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

F117066--WST HOST COMPUTER/LINKAGE REPLACEMENT

DESCRIPTION: The host computers are Concurrent 32s with an AST linkage system. They must be replaced with updated equipment due to rapid and near term non-supportability of the current equipment. Replacement of the WST host computers and AST linkage system will extend the life expectancy of the WST to 2015.

JUSTIFICATION: The F-117 Weapon System Trainer (WST) was designed and delivered to TAC in Jan 1986. These two critical systems are rapidly becoming obsolete with support becoming non-existent in the near future. If this is allowed to happen, the ability to train F-117 pilots will be severely impacted. Replacement of the WST host computers and AST linkage system will extend the life expectancy of the WST to 2015.

PROGRAM ELEMENT: PE27141

ISSUES: The F-117 relies extensively on a weapon system trainer to train and provide proficiency training to Wing pilots. All F-117 sorties are flown solo. Without the ability to train in the "simulator", flight safety cannot be maintained. The current equipment is becoming non-supportable and must be replaced.

REFERENCES:

MNS Number & Title: ORD Number & Title:

1067 Number & Title: Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

F117067--ON BOARD O2 GENERATING SYSTEM (OBOGS)

DESCRIPTION: Replaces the current liquid oxygen (LOX) system with a self-generating gaseous system.

JUSTIFICATION: LOX systems require continuous servicing even when not in use. LOX is stored at cryogenic temperatures, and boils off at rates varying from 3% to 50% daily depending on the specific system. This mandates the continuous generating or purchasing of LOX, storage requirements, aircraft system servicing requirements, and drives a huge infrastructure to support LOX for the Air Force.

PROGRAM ELEMENT: PE27141

Production/Delivery Qty

ISSUES: Eliminates daily LOX servicing and reduces the mobility footprint. If the F-117 does not convert to a self generating oxygen system then the F-117 program will take on the brunt of maintaining and funding the large LOX infrastructure as other aircraft convert to OBOGS.

REFERENCES:

MNS Number & Title: N/A ORD Number & Title: N/A

1067 Number & Title: ACC 97-013 OBOGS Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

F117068--COLOR MULTI-DISPLAY SYSTEM UPGRADE

DESCRIPTION: Replaces the current Color Multi-Display System (CMDS) due to supportability issues and service life.

JUSTIFICATION: The F-117 has two color multi-display indicators. They are projected to reach the end of their service life by need date. The CMDS risk factors for parts obsolescence are cathode ray tubes (CRTs), data entry panel (DEP) glass, and associated A-4 cards. The F-117 program will purchase 64 CRTs and 50 DEP glass components to last through 2005; however, there are 50 plus parts obsolescence issues remaining with CMDS.

PROGRAM ELEMENT: PE27141

Production/Delivery Qty

ISSUES: Failure to fund could result in non-operational aircraft.

REFERENCES:

MNS Number & Title: ORD Number & Title:

1067 Number & Title: 96-022 Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

 

F117069--EDTS UPGRADE

DESCRIPTION: Replaces the current expanded data transfer system (EDTS) with a data transfer system (DTS) due to approaching non-supportability and service life. The current system is comprised of an expanded data transfer module (EDTM) and expanded data transfer module interface unit (EDTMIU). The EDTS has supportability risk factors with parts obsolescence: SRAMS, microcode PROMS, HSC PAL, Signetics 8X3xx family of parts, and the Fairchild 1750 processor.

JUSTIFICATION: The EDTMIU power supply tends to overheat, adversely impacting flying schedule. Additionally, EDTM memory capacity is maxed out. New smart weapon integration, such as JASSM, will require more EDTM memory than is now possible with the current system. The proposed DTS is currently used in over sixty-five military applications and will increase the MTBF of interface unit from 131 hours to 35,000 projected flight hours; thus, changing the maintenance level from 3 to 2. In addition, the DTS provides a 100-fold improvement in memory capacity.

PROGRAM ELEMENT: PE27141

ISSUES: Upgrading the EDTS with a DTS will reduce operations and support costs and significantly reduce parts obsolescence issues.

REFERENCES:

MNS Number & Title: ORD Number & Title:

1067 Number & Title: Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

F117070--GATM

DESCRIPTION: Integrate the Global Air Traffic Management (GATM) system on the F-117.

JUSTIFICATION: Mandated for all CAF aircraft to comply with future airspace requirements.

PROGRAM ELEMENT: PE27141

ISSUES:

REFERENCES:

MNS Number & Title: ORD Number & Title:

1067 Number & Title: Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

 

 

F117071--WEAPON SYSTEM COMPUTER UPGRADE

DESCRIPTION: Replaces the AP-102/A weapon system computer due to approaching non-supportability and projected service life. There are three weapon system computers per aircraft. This modification will upgrade the weapon system computer to an open architecture design with COTS capability.

JUSTIFICATION: The AP-102/AP-102A is supportable until the year 2018 provided a redesign to the CPU/M card and the I/O card takes place. The CPU/M card requires redesign to handle the memory and throughput requirements of Block 2 and beyond. The I/O card will require redesign since it has 19 End-of-Life buys.

Purpose:

PROGRAM ELEMENT: PE27141

ISSUES:

REFERENCES:

MNS Number & Title: ORD Number & Title:

1067 Number & Title: Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050

 

 

 

 

F117072--JASSM INTEGRATION

DESCRIPTION: Integrates JASSM on the F-117, providing precision, standoff weapons employment capability.

JUSTIFICATION: Provides expanded operational capability on the F-117 by allowing expanded weapons employment envelopes, standoff, long-range employment, and adverse weather employment capability.

PROGRAM ELEMENT: PE27141

ISSUES:

REFERENCES:

MNS Number & Title: ORD Number & Title:

1067 Number & Title: Development Plan Date & Title:

Current CINC IPL:

ACC PEM: Lt Col Tom Young, DRPB, 4-3050

PEM Backup: Lt Col Paul Thomasson, DRPB, 4-3050



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ANNEX F Common Solution/Concept List (U)
Air Force Mission Area Plan (MAP)