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Nikitin-Sevchenko IS-2
 
 Nikitin-IS2-01
 
After the IS-1 further improvements were made which led the IS-2. The IS-2 first flew in 1941 with a new M-88 radial engine, and although it produced the same power as the M-63 on the IS-1, it had a smaller diameter and was thus more aerodynamic giving it a top speed of 316mph. Armament was upgraded from four 7.62mm ShKAS MG's firing at 1800rpm to two ShKAS and two 12.7mm DShK MG's firing at 600rpm.
 
 Nikitin-IS2-02
 
Ultimately, while the design proved its concept, the added weight from the actuating mechanism almost completely negated the added lift from the lower wing and left the IS-2 in a useless limbo where it was less maneuverable but faster than contemporary biplanes and more maneuverable but slower than contemporary monoplanes.
 
 Nikitin-IS2-03
 
Development was cancelled to to these disappointing performance figures and the German invasion of Russia.
 
 Nikitin-IS2-04
 
Engine: 1,100hp Shvetsov M-88
Wingspan: 27.4ft (8.3m)
Length: 23.4ft (7.1m)
Height: 10.7ft (3.3m)
Wing Area: 497.8 sq.ft (46.3 sq.m)
Empty Weight: 6,555lbs (2,973kg)
Loaded Weight: 6,941lbs (3,148kg)
Wing Loading: 13.9lbs/sq.ft (68.1kg/sq.m)
 
 
 
 
 


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