Russian "I" & "DI" Aircraft Series

hesham said:
For DI series
Click to expand...
Several omissions there:
  1. The DI-3 and DI-4 designations were reallocated to Polikarpov but they had been used first for other aircraft:
    • DI-3 (1) = Tupolev ANT-15 two-seat fighter (1930, project only)
    • DI-3 (2) = Polikarpov-Grigorovich TsKB N° 9 (1930, 1 built)
    • DI-4 (1) = Laville (Richard) project
    • DI-4 (2) = Polikarpov two-seat monoplane fighter (1933)
      You mention the latter as being designed by Laville, but isn't it just a confusion of the two allocations?
  2. The DI-5 (or TsKB N° 2) was probably a Kocherigyn project (other sources cite Yatsenko, possibly a joint design).
  3. You forgot to mention the fact that DI-6 (TsKB-11 and -41) was a Kocherigyn-Yatsenko model.
    Also, you missed out the DI-62 variant.
  4. The DI-7 was also a Kocherigyn design (despite being based on a Polikarpov).
For reference, Le Fana de l'Aviation N° 12 covered all DI- types.

Finally, I find the choice of covering only the DI- series in this topic very arbitrary.
Either cover all official fighter designations together, or separate I- from all the rest!

The other fighter designators were:
  • DIP (two-seat cannon fighter)
    Only one aircraft, the DIP (or DIP.1), which was the Tupolev ANT-45.
  • DIS & IDS (long-range escort fighter)
    Only one aircraft of each, the Myasishchev DIS (also known as VM-14 or DIS-2 VK-107A) and the Grushin IDS (or GP-1).
  • TIS (heavy escort fighter)
    Only one aircraft, the Polikarpov TIS.
  • UTI (fighter trainer)
    The UTI series ran from UTI-1 to UTI-6:
    • UTI-1 was the Polikarpov-Grigorovich I-5;
    • UTI-2 was a Polikarpov.
    • UTI-3 is unknown to me.
    • UTI-4 was the Polikarpov I-16UTI.
    • UTI-5 was the Shevchenko-Nikitin NV-2.
    • UTI-6 was the Shevchenko-Nikitin NV-6.
    • One can also add to this list the non-standard Mikhelson UTI-M49.
 

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Stargazer said:
Several omissions there:
  1. The DI-3 and DI-4 designations were reallocated to Polikarpov but they had been used first for other aircraft:
    • DI-3 (1) = Tupolev ANT-15 two-seat fighter (1930, project only)
    • DI-3 (2) = Polikarpov-Grigorovich TsKB N° 9 (1930, 1 built)
    • DI-4 (1) = Laville (Richard) project
    • DI-4 (2) = Polikarpov two-seat monoplane fighter (1933)
      You mention the latter as being designed by Laville, but isn't it just a confusion of the two allocations?
  2. The DI-5 (or TsKB N° 2) was probably a Kocherigyn project (other sources cite Yatsenko, possibly a joint design).
  3. You forgot to mention the fact that DI-6 (TsKB-11 and -41) was a Kocherigyn-Yatsenko model.
    Also, you missed out the DI-62 variant.
  4. The DI-7 was also a Kocherigyn design (despite being based on a Polikarpov).
For reference, Le Fana de l'Aviation N° 12 covered all DI- types.

Finally, I find the choice of covering only the DI- series in this topic very arbitrary.
Either cover all official fighter designations together, or separate I- from all the rest!

The other fighter designators were:
  • DIP (two-seat cannon fighter)
    Only one aircraft, the DIP (or DIP.1), which was the Tupolev ANT-45.
  • DIS & IDS (long-range escort fighter)
    Only one aircraft of each, the Myasishchev DIS (also known as VM-14 or DIS-2 VK-107A) and the Grushin IDS (or GP-1).
  • TIS (heavy escort fighter)
    Only one aircraft, the Polikarpov TIS.
  • UTI (fighter trainer)
    The UTI series ran from UTI-1 to UTI-6:
    • UTI-1 was the Polikarpov-Grigorovich I-5;
    • UTI-2 was a Polikarpov.
    • UTI-3 is unknown to me.
    • UTI-4 was the Polikarpov I-16UTI.
    • UTI-5 was the Shevchenko-Nikitin NV-2.
    • UTI-6 was the Shevchenko-Nikitin NV-6.
    • One can also add to this list the non-standard Mikhelson UTI-M49.
Click to expand...

hi all!
UTI-2 = I-16 type 14 (f/f 1935, 45 built, 1935-36, GAZ #21)
UTI-3 = I-16 type 11 (f/f 1935, 1 built, 1935, GAZ #21, I-16 version fith fixed LG)
UTI-4 = I-16 type 15 (f/f 1935, 3395 built, 1937-42, GAZ ##21, 153, 458)
UTI-4B = I-16 type 15B (f/f ?, ? built, GAZ #458, single-seat cambat version)

hesham said:
For DI series,

DI-1 was also known as 2I-N1,a two-seat sesquiplane biplane fighter,built
in a prototype,powered by one 450 hp Napier Lion W-12 water-cooled piston
engine,Polikarpov
DI-2 was also known as D-2,it was a two-seat biplane fighter,enlarge version
of Polikarpov I-3,powered by one 730 hp BMW VI engine
DI-3 was the same as ANT-15 two-seat fighter,project
DI-3 was a two-seat sesquiplane biplane fighter,replaced DI-2,which the later
crashed,powered by one 730 hp BMW VI V-12 engine,Grigorovich
DI-4 was a two-seat parasol gull-wing monoplane fighter,powered by one
600 hp Curtiss Conqueror engine,designed by Andre Laville
DI-4 was a two-seat fighter monoplane project,Polikarpov 1933
DI-5 was a two-seat biplane fighter project,powered by one M-32 inline
engine,maybe by Yatsyenko
DI-6 was a two-seat single bay biplane fighter,powered by one 700 hp
Shvetsov M-25 9-cylinder air-cooled radial piston engine,Kocherigyn-Yatsenko
DI-6bis was a trainer version with fixed landing gear
DI-6Sh (TsKB-11Sh, TsKB-38) was a ground attack variant with armored pilot's seat and four forward-firing PV-1 machine guns under the bottom wing
DI-6MMSH was one prototype with M-300 engine
DI-62 was a version of DI-6,powered by M-62 engine
DI-7 was a two-seat twin engined version of I-17,powered by two M-100
engines,project
DI-8 was a two-seat heavy fighter,similar to ANT-40,powered by two 800 hp
Gnome-Rhone 14K engines
Click to expand...

DI-6Sh also LSh-2
DI-6UT trainer
DI-8 = Arckangelsky ANT-46
 
hesham said:
How ?.
Click to expand...
Interesting. I don't know where I got the info about the DI-7 being Kocherigin... But yes, you're right TsKB-14 is indeed listed in my files as a Polikarpov, so I must have made a mistake somewhere.

Confirmation here (although it doesn't say specifically that the two-seat version was also by Polikarpov):
By mid-1933, Design Team No. 2 of the Polikarpov Central Design Bureau began work on a monoplane fighter with liquid-cooled engines TsKB-15. (...) In addition to the TsKB-15 (I-17), a two-seat version of it, the DI-7, was developed in the second half of 1933, but it was not developed.
Click to expand...
Source: History of aircraft designs in the USSR, 1938-1950, by V.B. Shavrov.

And here:
At that time we did not have a powerful thousand-horsepower engine, success could have been achieved by placing a pair of engines in tandem, one after the other in series, to reduce aerodynamic drag, as A. Moskalov and N. Polikarpov did with their projects - SAM-4 "Sigma" and SI (TsKB-21), DI-7 (one of the proposed options), respectively.
Click to expand...
from Borovik at https://propjet.ucoz.ru/forum/12-16-1

However, as the blog of Kirill Shishkin states:
Most of the aircraft in this list are more or less known, except for DI-5 and DI-7. It is difficult to say anything about DI-7, since it apparently remained in the form of a concept, in any case, its images on paper were not found.
Click to expand...
Source: http://nwtele.ru/content/neizvestnye-migi-yaki-ily-i-prochie
 
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