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I__. - International Military Testing Association

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- Pursuit of a leading. plane such that a given separation be maintained at all times.<br />

- Homing in on a target, persuit and attack of another plane.<br />

- Finally return to airfield and land.<br />

Mission FPS 05:<br />

An endless tunnel appears on the screen comprising a series of concentric squares and a white<br />

line approaching the viewer through the center of the bottom edges. The squares appear to<br />

approach the viewer by diverging from the centre. The apparent speed of approach of these<br />

squares (which remains constant) simulates the speed of flying through the tunnel. Rotation of<br />

the squares transmits a sensation of banking in the opposite direction. Similarly changes in the<br />

relative displacement of opposite sides (left and right for the tunnel bending, top and bottom for<br />

the tunnel rising and dipping) create effects of the tunnel changing direction and orientation.<br />

These effects communicate themselves to the candidate not as changes in the tunnel however,<br />

but as changes in the attitude of the plane. The alignment of the squares can be restored by the<br />

appropriate control inputs, which in turn restores the impression of level flight.<br />

These effects are accentuated by examination pressure and the feeling of sensory deprivation<br />

caused by a closed cockpit. This is so realistic to some candidates that they experience a sensation<br />

of air-sickness.<br />

Statistical Evaluation<br />

The evaluation of the missions is performed in 3 steps, viz:<br />

1) Data compression<br />

2) Determination ofcorrelations between FPS missions and flight performance in the Screening.<br />

3) Calculation of transformed test results.<br />

Table 1 gives an overview of the number of variables to be processed from each mission.<br />

Table 1: Number of variables per mission<br />

Mission 01: 7 sections of 11 variables.<br />

Mission 02: 11 sections of 11 variables (times 3 circuits).<br />

Mission 03: I8 sections of 11 variables.<br />

Mission 04: 16 sections of 11 variables.<br />

‘\<br />

Mission 05: 9 sections of 9 variables. c-..<br />

‘llis gives a total of 895 processed variables for all 5 missions. This implies ca. 130 kByte raw<br />

data per candidate. Thus a condensation of data is necessary to enable evaluation. (Details of<br />

this condensation procedure are to be found in an exhaustive paper on the subject shortly to be<br />

354

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