DA 42 AFM Performance
Doc. No. 7.01.05-E Rev. 8 15-Dec-2017 Page 5 - 11
WARNING
For a safe take-off the available runway length must be at
least equal to the take-off distance over a 50 ft (15 m)
obstacle.
WARNING
Poor maintenance condition of the airplane, deviation from
the given procedures, uneven runway, as well as unfavorable
external factors (high temperature, rain, unfavorable wind
conditions, including cross-wind) will increase the take-off
distance.
CAUTION
The figures in the following NOTE are typical values. On wet
ground or wet soft grass covered runways the take-off roll
may become significantly longer than stated below. In any
case the pilot must allow for the condition of the runway to
ensure a safe take-off.
NOTE
For take-off from dry, short-cut grass covered runways, the
following corrections must be taken into account, compared
to paved runways (typical values, see CAUTION above):
- Grass up to 5 cm (2 in) long: 10 % increase in take-off roll.
- Grass 5 to 10 cm (2 to 4 in) long: 15 % increase in take-off
roll.
- Grass longer than 10 cm (4 in): at least 25 % increase in
take-off roll.
- On grass longer than 25 cm (10 in), a take-off should not
be attempted.
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