|Take off climb||3.5m/s|
The Yak-18U with tricycle landing gear turned to be somewhat overweight for M-11FR engine. When new A.I.Ivchenko AI-14 9-cylinder became available, it was quickly fitted to Yak-18U airframe. Smaller outer diameter allowed to replace helmet-type cowling to simple NACA-type with cooling gills, providing all-new look to the aircraft. New metal V-530-D-35 two-blade controllable pitch propeller was installed.
Other changes included metal skinning extended back to the tail, fin area increased (by a small dorsal fillet). Canopy was slightly enlarged, with new raked whip aerial installed. On some late production batches more powerful AI-14FR was fitted, boosting top speed of Yak-18A to the 300km/h.
Yak-18A was first mentioned by Soviet Press as Yak-20.
|Created February 29, 1996
Modified October 26, 1999