Section 920
Airtow Hook
Page Date: 19. February 2014 920 - 5
PilotĀ“s Operating Handbook US
EXTRA 330LX
E) DESCENT AND LANDING
While descending the engine temperatures shall be observed (avoid overcooling). Final
approach should account for the air-tow hanging below the aircraft flight path.
920.5 PERFORMANCE
The existing POH-Data remain valid with the exception of:
TAKE-OFF DISTANCE
Conditions:
Power: 2600 Rpm and full throttle, mixture rich,
short grass, dry and paved level runway, no wind,
takeoff weight of the towing aircraft: 820Kg (1808lbs)
Liftoff speed (T/O): 68 KIAS = 126 Km/h indicated
Obstacle clearance speed over 15m (50ft) : 74 KIAS = 137 Km/h indicated
For every 5 kts (9 km/h) headwind, the takeoff (T/O) distance can be decreased by 5%. For
every 2 kts (4 km/h) tailwind [up to 10 kts (19 km/h)], the (T/O) distance is increased by 10%.
CAUTION
All values are valid for single-pilot air-towing operation [820kg (1808 lbs) TOW]. In case of
an instruction flight with copilot, the higher takeoff weight has to be considered!
The maximum permissible air-towing speed of the glider needs to be observed!
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