Eiri KY PIK-20 E - Use of Flaps

PIK-20 E Flight manual
A
Following notes can be seen from the graph:
1. The sailplane drag is 3 to 4 times higher with extended engine
L/D max = 16.5
w min = 1.25 m/s W = 360 kg
w min = 1.45 m/s W = 470 kg
and with V = 100 km/h
w = 2.0 m/s W = 360 kg
w = 1.9 m/s W = 470 kg
2. Level speed
Max level speed is 160 km/h.
Maximum rpm 6800 limits it to 150 km/h.
7.3 Use of flaps
7.3.1 Optimum flap deflections in glide
80 100 120 140 160 180 200 220 (km/h)
FIG 7.7: Optimum flap deflections in glide
EIRI KY
y
Kisällinkatu 8
SF-15170 Lahti 17
page I-49