Digital Temperature Controller Amplifier - J85

The RSL DTCA (Digital Temperature Control Amplifier) is a digital fit, form and function replacement for the original analogue exhaust temperature (T5) controller coupled with the engine Health and Usage Monitoring System (HUMS) of the GE J85 turbo-jet engine of the T-38 and F-5 aircraft.

The DTCA significantly improves the J85 engine performance and reliability enhances flight safety, fleet availability and reducing its maintenance cost.

The DTCA is a mature and field proven system

Benefits

• Improved engine performance
• Reduced maintenance effort and cost
• Improved fleet availability
• Debriefing capability

• Increased engine MTBF
• Decreased engine MTTR
• Reduced engine stress 

Technical Data

• Dimensions: (HxWxL) 2.5"x4.5"x11.5"  (64 x 115 x 292)mm
• Weight:3.52 lb (1.6Kg)
• Actual MTBF over 17,000 hours
• Qualifications: MIL-STD-810E, MIL-STD-461B and MIL-STD-704A
• Power Consumption: 7 W  
   

Main Features

• Compatible withJ85-5/13/21 engines
• Full digital system
• Full dual redundancy - two independent controllers in one LRU.
• Failure triggered channel switching 
• Monitors engine parameters (RPM, EGT, CIT, altitude and temperature) engine and afterburner operating time, ignitions counting, flight time, flame-out, exceedance, trends and low cycle fatigue counting. 
• Optional simple and precise T5 calibration procedure ( one technician required )
• Simple flight-line aircraft retrofit - No Aircraft modifications required.
• Advanced self BIT (Built-In-Test): 
  • Tests allDTCA functions, modules and engine sensors
  • Auto recording of all engine starts for in-depth diagnostics and trending
  • Optional pilot initiated recording
• Optional monitoring capabilities of more engine parameters (up to 6 new inputs)
• Flight-line re-programmable
• Flight-line test equipment- a hand-held Test and Data Extractor Unit (TDEU) - standard USAF GSE. This unit has the following features:
  • Special Expert System software for prompt, effortless automatic troubleshooting
  • Enables individual testing of engine components (alternator, thermocouples, etc.)
  • Flight-line testing of theDTCA does not require aircraft power application
• NSN 4920-01-424-8886DQ
• Optional laptop configuration of the same TDEU
• PC based workstation for ground in-depth engine evaluation and diagnostics.