A third I-230 airframe was completed early in 1943 with
a 1800hp Mikulin AM-39 12-cylinder Vee-type engine
and the Izdeliye designation 2D. Apart from the tailplane
which was set 20cm lower, this aircraft was basically similar to the first I-230 and retained the
same armament of twin synchronised cannon.
Assigned the official designation of I-231, the prototype
was written off in a landing accident shortly after the
completion of factory testing and further development
|A three-view drawing (1670 x 1217)|
| Take-off weight||3287 kg||7247 lb|
| Empty weight||2583 kg||5695 lb|
| Max. speed||707 km/h||439 mph|
| Range||1350 km||839 miles|
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