Yak-55/55M, 1982/1989
All-metal monoplane with non-retractable titanium spring landing gear. This airplane was specifically designed to replace Yak-50 as the main aerobatic competition aircraft. The "M" modification (data after the slash "/") offers faster rolls thanks to a shorter wing. Its notable drawback is a mandatory (and costly) wing attachments replacement at 250 total hours At the Arseniev plant, a hundred Yak-55 and Yak-55M nave been built so far. Both versions are widely used in aeroclubs throughout ex-USSR. The 55/55M are enjoying a enduring popularity in the West as solid, low cost advanced aerobatic aircraft.

Engine:
Vedeneyev M-14P 360 hp (269 kW) 9 cylinder aircooled radial
Propeller (standard)
Two-blade variable pitch wooden V-530TA-D35
Dimensions:
Span
Length
Height
Wings area
9,0 / 8,1 m
7,29 m
2,2 m
14,8 / 12,8 m2
29,5 / 26,6 ft
23,9 ft
7,2 ft
159 / 137,6 ft2
Weights and loadings:
Basic empty weight
Clean A/C takeoff weight:
Basic fuel capacity
875 / 855 kg
975 kg
190 l
1929 / 1885 lb
2149 lb
Performances:
Maximum level speed @ 1000 m
Vne
Landing speed
Stalling speed (with flaps)
Maximum rate of climb
Roll rate
Service ceiling
Maximum range (10 % reserve)
Maximum endurance
Take off run (sea level)
Landing run (sea level)
Maximum load factor
290 / 305 km/h
450 km/h
130 km/h
90 km/h
15 m/s
4 / 6 rad/s
4000 m
700 km
3,6 hr
150 m
465 m
+ 9 / - 6
157 / 165 mph
243 mph
70 mph
49 mph
1377 fpm
4 / 6 rad/s
13115 ft
378 nm
3,6 hr
492 ft
1525 ft
+ 9 / - 6