Technical data
Type I-207 'product 7' N°1 I-207 'product 7' N°2
Function Fighter Prototype
Year Spring 1939
Crew 1
Engine M-62 M-63
Power, normal 800hp 930hp
Power, takeoff 930hp 1100hp
Length 6.35m
Wingspan 7.0m
Wing area 18.0m2
Loaded weight 1950kg
Wing Load (kg/m2) 108
Power load (kg/hp) 2.0 1.8
Speed at 0m 387km/h 397km/h
Speed at 4000m 436km/h 423km/h
Landing Speed 115km/h
Takeoff Roll 196m n/a
Turn time 19.5sec 18.5sec
Range 700km n/a
Flight Endurance 2h
Ceiling 9150m 9200m
Climb
5000m 6.2min 6.7min
Armament
Guns 4*7.62mm ShKAS
550rpg

I-207 N°1 and N°2 (product '7') by A.A.Borovkov and I.F.Florov

41k b/w I-207 (product '7') "History of aircraft construction in the USSR", Vol.2 p.66

Despite the crash of N°7211 prototype, in May 1938 designers were invited for meeting with Aviation Industry leadership, and in Fall 1938 they were assigned to bring '7211' to a production state.

First two prototypes had fixed landing gear like on the N°7211. They had open cockpit. More powerful engines were installed, and corresponding changes to the cowling were introduced. Air intake was installed on top of the cowling. Machineguns were fitted, gun blast tubes installed.

Both 'products 7' were ready on Spring 1939 and flown by P.M.Stefanovskij, L.M.Maksimov and N.I.Nikolaev.

It was obvious that aircraft with fixed landing gear are obsolete. In addition, small plane size restricted propeller diameter. Small 2-blade VISh-26 propeller (2.8m) demanded a gearbox.

Those requirements were fulfilled in products '8' and '9'.

PredecessorsModifications

7211

I-207
products '8','9'

ReferencesLinks
  • "History of aircraft construction in the USSR", Vol.2 p.65;
  • I-207
  • I-207, Borovkov-Florov

  • Created November 25, 1998 Back to
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