The Yakovlev Yak-17 (Russian: Яковлев Як-17; USAF/DOD designation Type 16, NATO reporting name Feather)[1] is an early Soviet jet fighter.

This caused a major redesign of the fuel tanks and reduced their capacity to just 680 liters (150 gallons).

The addition of the tip tanks required a redesign of the structure of the wing so that the aircraft could still maintain a load bearing of 12g.

The vertical stabilizer was enlarged and a periscope was also added above the windscreen on most series aircraft.

In operation, the Yak-17 had most of the same faults as its predecessor, including relatively low speed and range, and an unreliable engine (still based upon the German Junkers Jumo 004) with a complicated starting procedure.