Model Variants (Including Prototypes)
Yak-7 - Base Series Designation
Ya-27 - Two-Seat Prototype
Yak-7UTI - Two-Seat Trainer Model; introduced in 1941; 186 examples produced.
Yak-7V - Two-seat trainer; 510 new-build models with 87 modified from existing Yak-7B stock.
Yak-7 - Original single-seat fighter model based on Yak-7UTI; 1 x 20mm cannon in propeller hub; 2 x 7.62mm machine guns in engine cowling; limited production by end of 1941.
Yak-7-37 - Fitting 37mm MPSh cannon in propeller hub; 2 x 12.7mm heavy machine guns in engine cowling.
Yak-7A - Improved Yak-7 fighter appearing in 1942; 300 examples.
Yak-7B - Improved Yak-7A; decreased wingspan, upgraded equipment; 5,000 examples produced.
Yak-7D - Long Range Prototype
Yak-7K - Fast Courier Model based on Yak-7B
Yak-7PVRD - Ramjet test platform; two examples
Yak-7 (M-82) - Engine test platform of 1941; M-82 engine fitted.
Yak-7R - Combination test platform with turbojet and ramjet engines; appearing in 1942.
Yak-7T - Engine cannon test platform; two examples.