Technical data
Type Yak-18U
Function Trainer
Year 1954
Crew 2
Engine M-11FR
Power 160hp
Length 8.54m
Height ?m
Wingspan 10.6m
Wing area 17.0m2
Empty weight 970kg
Loaded weight 1300kg
Wing Load (kg/m2) 76.5
Power load (kg/hp) 8.1
Speed at 0m ?km/h
Landing Speed ?km/h
Landing Roll ?m
Takeoff Roll ?m
Turn time ?sec
Range ?km
Flight Endurance hmin
Ceiling m
Climb
1000m ?min
Payload
Fuel ?kg

Yak-18U by A.S.Yakovlev ('Max')

32k b/w "Russian Civil and Military aircraft 1884~1969" by Heinz J.Nowarra and G.R.Duval, p.195

Tricycle landing gear was introduced on the Yak-18 in 1954. To provide room for the backwards-retracting nosewheel, fuselage was extended forward by 468mm. Attachment of the main undercarriage was moved from the front wing spar to the rear one, and wheels were now retracing forwards (backwards in the Yak-18).

Engine helmet cowling was modified also, providing increased frontal air intake.

Tricycle landing gear installation resulted in increase of the gross weight and corresponding degradation of the performance. In 1957 Yak-18U was replaced in production lines by Yak-18A with smaller and more powerful engine.

Yak-18U was built at Arsenyevsk (960 aircraft) and in Poland as Let C-18M.

PredecessorsModifications

Yak-18

Yak-18A
ReferencesLinks
  • "Russian aircraft since 1940" by Jean Alexander, p.449...454;
  • "Russian Civil and Military aircraft 1884~1969" by Heinz J.Nowarra and G.R.Duval, p.193...196;
  • ....

  • Created October 26, 1999 Back to
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