Eiri KY PIK-20 E - Page 54

PIK-20 E Flight manual
Note 1: Use of +8° flaps shortens the takeoff by 15 %.
Note 2: Concrete runway shortens the takeoff by 10 %.
Note 3: 10 km/h headwind shortens the takeoff by 25 %.
10 km/h tailwind lengthens the takeoff by 30 %.
Example: Weight
420 kg
Temperature
25° C
Pressure altitude
1200 m
Headwind component
10 km/h
Flaps: neutral and grass runway
From figure 7.3. and 7.4
Ground roll
360 m
Total to clear 15 m obs.
690 m
Airspeed at lift-off
86 km/h
at 15 m
102 km/h
Headwind component correction.
690 - — 10 • 0,25 ■ 690 = 520 m
10
7.2.4. Climb
Rate of climb with takeoff power. Sea level, temperature + 15°C (gear
retracted flaps 0°. . . + 8°)
W = 360
kg
4.0 m/s (790 fpm)
Optimum
speed
flaps 0°
90 km/h (56 mph, 49 kts)
flaps + 8°
85 km/h (53 mph, 46 kts)
W = 470
kg
2.8 m/s (550 fpm)
Optimum
speed
flaps 0°
100 km/h (62 mph, 54 kts)
flaps + 8°
95 km/h (59 mph, 51 kts)
Note 1: Use of max continuous power reduces the rate of climb by 0.35
m/s (70 fpm).
EIRI KY
J
Kisällinkatu 8
SM5170 Lahti 17
page I -46