For a turbo-propeller aircraft, in the flight preparation, the landing distance at an alternate aerodrome shall be less than the available landing distance multiplied by a factor of _____.
ICAO Annex 6
7. Landing limitations
7.1 Aerodrome of destination — dry runways
7.1.1 No aeroplane should commence a take-off at a mass in excess of that which permits the aeroplane to be brought to a full stop landing at the aerodrome of intended destination from 15.2 m (50 ft) above the threshold:
a) for turbo jet powered aeroplanes, within 60 per cent of the landing distance available; and
b) for turbo-propeller aeroplanes, within 70 per cent of the landing distance available.
The mass of the aeroplane is assumed to be reduced by the mass of the fuel and oil expected to be consumed in flight to the aerodrome of intended destination. Compliance is shown with 7.1.1.1 and with either 7.1.1.2 or 7.1.1.3.
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