A part task trainer (PTT) is a training device that is designed to train a member of the aircrew or maintenance staff on a particular task associated with the aircraft. Various providers have designed and developed part task trainers for a range of tasks including:
- Avionics systems.
- Systems familiarization.
- Health monitoring systems, and
- A variety of complex tasks specific to a particular aircraft.
- Part-task simulators can be used for crew training for preflight checks, normal and abnormal/failure operations primarily when using the autopilot. Software MUST be totally accurate.
- Part-task trainers and limited range of motion high-fidelity simulators may not sufficiently emulate loss-of-control situations to enable effective upset recovery training.
- Negative transfer of training due to the lack of fidelity with the actual operational environment. For certain accident types, training may not help; aircraft changes may well be necessary.
- Poorly modeled aircraft dynamics and control laws. Upset prevention (via recognition) may improve using part-task simulators, but actual ability to recover from unusual attitudes may worsen.
- Airline crews learning tricks to fly the simulator and pass competency checks
- Unrealistic handling in strong or gusty crosswinds
- However, some simulators may be particularly effective in training for recognition and early detection of the conditions preceding loss of control situations. Implementation may be more widespread due to lower cost of part-task trainers.
- There is a risk of pilot training in aircraft handling, including loss of engine power and asymmetric flight being carried out on the aircraft rather in flight than in full flight simulator. Control of an aircraft near V1 on the ground or at low altitude after take off cannot be adequately simulated at higher altitudes.