BLANIK
L-13
(KTS)
BLANIK L-23
(KTS)
BLANIK L-33
(KTS)
KROSNO KR-03
(KTS)
DG-300
(KTS)
DG-303
(KTS)
ASTIR
CS-77
(KTS)
TWIN ASTIR
(KTS)
Vne
(never exceed)
136  135 130 108  146  146 135  135 
Vfe
(flaps extended)
60  n/a n/a n/a n/a n/a n/a n/a
Vsl
(stall lean)
30s/33d 33 35 31s/35d 35 35 34  36s/43d
Vso
(stall spoilers open)
33s/36d 35 41 34s/38d / / 40  41s/49d
Va
(maneuvering)
78  81 / 80  108  108 92  92 
Vra
(rough air)
65  86 82 80  108  108 135  108 
Vt
(max. towing speed)
76  81 82 70 108  108 92  92 
LANDING
(no wind)
43s/51d 49 55 45s/50d 48 48 50  54
BEST GLIDE
39s/42d 47 49 43s/47d 50 54 52 51s/57d
MINIMUM SINK
34s/37d 42 37 41s/45d 42 42 41 40s/43d
MAXIMUM L/D 28 to 1 27 to 1 33 to 1 27 to 1 40 to 1 41 to 1 37 to 1 37 to 1
Note: The above information is provided as a service to MSC members only and is not warranted to be error free. Please refer to the Aircraft Operating Handbooks for official information.