Helicopter Class 1 Cat A Extension
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<strong>Helicopter</strong> Performance<br />
Performance <strong>Class</strong> 1 <strong>Cat</strong>egory A <strong>Extension</strong>s<br />
(adequate visual cues)<br />
These extensions are only available with the vertical or back-up procedure<br />
There is sometimes a penalty when an elevated procedure (with the e same<br />
profile as a ground level helipad-procedure) procedure) is certificated - the reject<br />
surface is required to be greater because of the reduction of visual cues.<br />
A heliport is considered to be elevated when 3m above the surrounding<br />
area; clearly if a specific elevated heliport has a rich visual cue<br />
environment, discretion could be applied by the Authority.<br />
There is no additional requirement for power reserves if this<br />
judgement is exercised.
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