Schempp-Hirth Flugzeugbau Ventus-3T Sport, Руководство по эксплуатации самолета, Страница: 107 / 177

SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK
Ventus-3T „Sport“ FLIGHT MANUAL
April 2018 CS 22
Revision – 5.2.2.1
5.2.2 Stall speeds
The following stall speeds (IAS) at various flap settings were determined in straight
and level flight:
Configuration POWER PLANT RETRACTED
Wing span 18 m
All-up mass
(approx.) 600 kg
1323 lb
600 kg
1323 lb
C/G position
(aft of datum) 290 mm
11.42 in.
430 mm
16.93 in.
Stall speed, airbrakes closed
flaps at “+2”
km/h
kt
mph 77 ± 3
42 ± 2
48 ± 2 75 ± 5
40 ± 3
47 ± 3
flaps at “0”
km/h
kt
mph 88 ± 3
48 ± 2
55 ± 2 77 ± 5
42 ± 3
48 ± 3
flaps at “S1”
km/h
kt
mph 96 ± 5
52 ± 3
60 ± 3 80 ± 5
43 ± 3
50 ± 3
airbrakes extended
flaps at “L”
km/h
kt
mph 96 ± 3
52 ± 2
60 ± 2 80 ± 5
43 ± 3
50 ± 3
Airspeed indication oscillates with rearward c/g positions.
The loss of height from the beginning of the stall until regaining a normal level
flight attitude is up to 110 m (361 ft).
POWER PLANT EXTENDED,
FULL POWER
Wing span 18 m
All-up mass
approx. 600 kg
1323 lb 600 kg
1323 lb
C/G position
aft of datum 300 mm
11.81 in. 430 mm
16.93 in.
Stall speed, airbrakes closed
flaps at “+2”
km/h
kt
mph 65 ± 5
35 ± 3
40 ± 3 65 ± 5
35 ± 3
40 ± 3
flaps at “L”
km/h
kt
mph 62 ± 5
34 ± 3
39 ± 3 57 ± 5
31 ± 3
35 ± 3
airbrakes extended
flaps at “L”
km/h
kt
mph 59 ± 5
32 ± 3
37 ± 3 59 ± 5
32 ± 3
37 ± 3
The loss of height from the beginning of the stall until regaining a normal level
flight attitude is up to 80 m (262 ft).