Schempp-Hirth Ventus-3M Performance, Предварительное руководство по эксплуатации самолета

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SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK
Ventus-3M „Performance“ FLIGHT MANUAL
March 2019 CS 22
Revision – 5.2.2
5.2.2 Stall speeds
The following stall speeds (IAS) at various flap settings were determined in straight
and level flight:
Configuration Powerplant retracted
Wingspan 18 m
All-up mass (approx.)
600 kg
1322 lb 600 kg
1322 lb
C/G position (aft of datum)
320 mm
13 in. 430 mm
17 in.
Stall speed, airbrakes closed.
Flaps at „+2“
km/h
kts
mph 76 ± 3
41 ± 1.6
47 ± 1.9 70 ± 5
38 ± 2.7
44 ± 3
Flaps at „0“
km/h
kts
mph 78 ± 3
42 ± 1.6
48 ± 1.9 72 ± 5
39 ± 2.7
45 ± 3
Flaps at „S1“
km/h
kts
mph 88 ± 3
47 ± 1.6
55 ± 1.9 75 ± 5
40 ± 2.7
47 ± 3
Stall speed, airbrakes extended
Flaps at „L“
hm/h
kts
mph 74 ± 3
40 ± 1.6
46 ± 1.9 72 ± 5
39 ± 2.7
45 ± 3
Airspeed indication is oscillating 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 (360 ft).
Configuration
Powerplant extended,
Full throttle
Wingspan 18 m
All-up mass (approx.)
600 kg
1322 lb 600 kg
1322 lb
C/G position (aft of datum)
320 mm
13 in. 430 mm
17 in.
Stall speed, airbrakes closed
Flaps at „+2“
km/h
kts
mph 79 ± 5
42 ± 2.7
49 ± 3 69 ± 5
37 ± 2.7
43 ± 3
Flaps at „L“
km/h
kts
mph 76 ± 5
41 ± 2.7
47 ± 3 68 ± 5
37 ± 2.7
42 ± 3
Stall speed, airbrakes extended
Flaps at „L“
km/h
kts
mph 77 ± 5
42 ± 2.7
48 ± 3 69 ± 5
37 ± 2.7
43 ± 3
Airspeed indication is oscillating 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 90 m (295 ft).