Eiri KY PIK-20 E - Page 35

PIK-20 E Flight manual
A
When the throttle has been fully opened, it takes about 30 m ground
run, before the wings can be levelled. With partly filled water ballast
tanks the distance to level the wings is longer.
Lift off speed:
80 km/h (50 mph, 43 kts) for 370 kg weight or
90 km/h (56 mph, 49 kts) for 470 kg weight.
After the lift off accelerate to the optimum speed for best rate of
climb
90 km/h (56 mph, 49 kts) for 370 kg weight or
100 km/h (62 mph, 54 kts) for 470 kg weight.
At a safe altitude the power should be set to maximum continuous
power 6000 rpm at 100 km/h. The electric fuel pump can be turned off
at desired altitude.
On a soft field or a short field the shortest takeoff distance is achieved
with the flaps +16° down. The trim should be in the middle position
with normal C. of G. position.
Lift off speed:
70 km/h (44 mph, 33 kts) for 360 kg weight or
80 km/h (50 mph, 43 kts) for 470 kg weight.
The speed for the best angle of climb:
80 km/h (50 mph, 43 kts) for 360 kg weight or
90 km/h (56 mph, 49 kts) for 470 kg weight.
Retract the gear to get better rate of climb.
When reaching the safe altitude, accelerate to the optimum speed for
climbing with flaps neutral and retract the flaps.
Especially on a soft field it is best to use the maximum possible lift of
the wing during the ground run to minimize the drag from the wheel.
This
is achieved by keeping the tail wheel about 40 cm (1 ft) off the
ground.
With a strong crosswind, when the C. of G. in the fore position,
maintaining the right direction during the beginning of the ground run is
difficult. An assistant at the wing tip is then recommended.
Maximum crosswind is 10 kts.
Negative flap positions shall not be used in any condition because of
the increasing stalling speed.
EIRI KY
J
Kisällinkatu 8
SF-15170 Lahti 17
page I-27