The Yak-7V was developed as a trainer version of the Yak-1.
A second cockpit was added aft of the original one, and wing span was
increased. It was found that the extra space for the second cockpit could be
used for fuel or armament too, and that the performance of the Yak-7 almost
equalled that of the Yak-1.
The YAK7, Yakovlev design was
intended as a two seat aircraft (originally
designated as the I-27). However, it displayed
better performance than the -1 and a single seat
version was quickly designed.
The aircraft incorporated
several other design improvements including an
improved engine of greater horsepower.
Designated the Yak-7, it reverted to the
original canopy design in early models (Yak-7A).
Later variants
incorporated the improved canopy and cut down
rear fuselage (Yak-7B). Other Yak-7 variants
included the Yak-7V two seat trainer, the
original design purpose of the -7. Thus the
Yak-7 was again developed to a close support
fighter. The two-seat version was also used in
combat, for reconnaissance missions. 6399 built.
There was also a single
prototype with a M-82 radial engine, and an
extensively redesigned fuselage to accomodate
this. To overcome this Lavochkin along
The new armament
scheme included two 12.7mm UBS weapons replacing
the original ShKAS above the engine, resulting
in the appearance of two blisters to cover the
breaches. The internal cockpit arrangement was
thoroughly redesigned, and the rear canopy
section was replaced with a ply unit.
Later Yak-7Bs were
manufactured with the M-105PF engine, and the
final examples of this type with a cut-down rear
fuselage very much resembling the Yak-9.
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