PROCRU simulation results compared with Metro II in-flight ILS approach data

PROCRU simulation results compared with Metro II in-flight ILS approach data

Visser, J.

National Aerospace Laboratory NLR

1987-12-22

The PROCRU (Procedure Oriented Crew) model has been developed for the analysis and modeling of flight crew procedures during an ILS approach. The model's specific capability concerns the generation of "timelines" of the necessary actions to be carried out by each crew member during the approach. Besides, also the corresponding timelines for other relevant variables can be generated by the model reflecting among other things the aircraft's position relative to the runway, its altitude, speed, information presented, etcetera. The objective of the present study is to analyse the model's applicability by comparing model results with actual in-flight approach data. The approaches have been flown with the Swearingen Metro II research aircraft of NLR. More specifically, they were carried out as an additional part of another, simultaneously running, research project. Although the in-flight experiment was not explicitly designed for the purpose of model validation, the obtained data allowed useful comparisons with PROCRU generated data. The model results show an acceptable degree of accuracy, with respect to the prediction of timelines of the relevant events in the approach, as well as with respect to the computed flight path profiles. The study also reveals a number of weaknesses In the model which are inherently related to aspects of the model implementation in the computer program. Some specific recommendations for additional model improvements are formulated, in particular, in relation to practical aspects enhancing the flexibility of the utilization of th PROCRU model.

Computerized simulation
Aircraft landing
Manual control
Approach control
Crew procedures (inflight)
Instrument landing systems
Tasks
Decision making
Mathematical models
Computer programs

http://resolver.tudelft.nl/uuid:aa2da6c5-5b86-4312-83f6-0339c9c0c274

Nationaal Lucht- en Ruimtevaartlaboratorium

Campus only

NLR-TR 87180 U

Aerospace Engineering Reports

report

(c)1987 National Aerospace Laboratory NLR