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I__. - International Military Testing Association

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situation devoid of external distractions. In this way an adequate performance comparison<br />

between different candidates is provided. In addition a qualitative description of candidate<br />

behaviour may be formulated by observations during the test.<br />

Description of the FPS 80 Test Device<br />

Test position<br />

The two identical test positions are built to resemble cockpits. They contain a seat and the usual<br />

flight controls, viz: stick, rudder, flap-lever, gear-switch, and throttle. These are actual parts<br />

from scrapped military aircraft. In the interest of cost reduction, a stationary cockpit is used.<br />

Impressions of movement originate exclusively from visual inputs.<br />

Conventional flight instruments are depicted on an instrument panel. Three colour VDUs appear<br />

above the panel. These represent the view from the cockpit. The view forwards covers a<br />

landscape of approximately 80 kilometres square. The view includes an airfield and the<br />

surrounding landscape. The scale of the depicted landscape represents the cockpit current<br />

displacement from it; the speed of change of a display represents the speed of the cockpit and<br />

perspective of the objects displayed represents the current orientation of the cockpit. In this way<br />

a realistic impression of motion is convey to the candidate.<br />

In the lower third of the central VDU are displayed the following instruments: power, speedo,<br />

compass, horizon, altimeter, vertical speed indicator and G-meter.<br />

The cockpits additionally have a control and warning-panel that gives information about such<br />

things as landing gear (up/unsafe/down), flaps (up/down), parking brakes, stall warning. An<br />

input key-pad is found on the right side. The performance characteristics mirror those of a<br />

standard single engine machine. System parameters may be changed to simulate other machine<br />

types. The two cockpits operate independently of one another.<br />

System Configuration<br />

The FPS 80 system comprises 7 computers linked by a network. One of these is a central<br />

computer and each cockpit is driven by three more. Tests are controlled from the central<br />

computer console ftom where the test supervisor can start the different test programs, communicate<br />

with the candidates and monitor their progress. He can additionally intercept their visual<br />

displays, and speak with the candidates, singly or severally, by radio link. The candidate<br />

performance data is returned to the central computer where it is stored on tape, later to be<br />

processed on an external computer in combination with the results of the other screening<br />

procedures, to produce a composite performance profile for each candidate. The results from<br />

all candidates may then be statistically analysed.<br />

Test procedure<br />

The PPS 80 Test Procedure consists of 5 missions. Each candidate receives a standard briefing<br />

from the instructor befog beginning each mission. A mission is built up of various distinct<br />

manoeuvres, usually starting and ending with a take-off and landing. Every mission has three<br />

phases, viz:<br />

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