Soviet Istrebitel (Fighter) Designations
From the mid-1920's until into the 1950's, Soviet fighter (istrebitel) aircraft were given an official designation consisting of the letter "I" and a sequence number. The Istrebitel (Fighter) military designation of the aircraft was sometimes re-used for different aircraft.
| Istrebitel | Manufacturer | Model | Comments | ||||||
| I-1 | Grigorovich | I-1 | Re-designed as I-2. | ||||||
| I-1 | Polikarpov | IL-400 | Limited production; no service. | ||||||
| I-2 | Grigorovich | I-2 | Production: 211. | ||||||
| I-3 | Polikarpov | I-3 | Production: 240 - 399 | ||||||
| I-4 | Tupolev | ANT-5 | Production: 369; also used in Aviamatka trials with TB-1. | ||||||
| I-5 | Tupolev | ANT-12 | Unbuilt. | ||||||
| I-5 | Polikarpov, Grigorovich | VT-11 | Production: 800. | ||||||
| I-6 | Polikarpov | I-6 | Not built in favor of I-5. | ||||||
| I-7 | Polikarpov | HD-37c | Licensed from Heinkel; production 134. | ||||||
| I-8 | Tupolev | ANT-13 | 1 x prototype; nickname Zhokei. | ||||||
| I-9 | Grigorovich | I-9 | Unbuilt. | ||||||
| I-10 | Grigorovich | I-10 | Unbuilt. | ||||||
| I-11 | Polikarpov | I-11 | Unbuilt. | ||||||
| I-12 | Tupolev | ANT-23 | 1 x prototype with APK-4 recoilless guns. | ||||||
| I-13 | Polikarpov | I-13 | Unbuilt I-15 predecessor. | ||||||
| I-14 | Tupolev | ANT-31 | Limited production; advanced fighter. | ||||||
| I-15 | Polikarpov | TsKB-3 | Ubiquitous biplane; nickname Chaika. | ||||||
| I-16 | Polikarpov | TsKB-12 | Ubiquitous monoplane. | ||||||
| I-17 | Polikarpov | TsKB-15 | Liquid-cooled engine counterpart to I-16; no production. | ||||||
| I-18 | Polikarpov | I-18 | Advanced I-16 development; very limited production; no service. | ||||||
| I-19 | Polikarpov | I-19 | Advanced I-15 development; 2 x prototypes. | ||||||
| I-20 | ? | ? | designation skipped ? | ||||||
| I-21 | Ilyushin | TsKB-32 | 2 x prototypes. | ||||||
| I-21 | Pashinin | I-21 | I-16 replacement; no production. | ||||||
| I-22 | Lavochkin | LaGG-1 | Production: 100. | ||||||
| I-23 | ? | ? | designation skipped ? | ||||||
| I-24 | ? | ? | designation skipped ? | ||||||
| I-25 | ? | ? | designation skipped ? | ||||||
| I-26 | Yakovlev | Ya-26 | Redesignated Yak-1. | ||||||
| I-27 | Yakovlev | Ya-27? | Developed from UTI-26; redesignated Yak-7. | ||||||
| I-28 | Yatsyenko | I-28 | 2 x prototypes & 5 x production. | ||||||
| I-28 | Yakovlev | Ya-28 | Experimental high-altitude figher; redesignated Yak-5. | ||||||
| I-29 | Yakovlev | Ya-22, BB-22 | Development of Yak-2; redesignated Yak-4. | ||||||
| I-30 | Yakovlev | Ya-30 | Metal Yak-1; redesignated Yak-3; no production. | ||||||
| I-31 | ? | ? | designation skipped ? | ||||||
| I-32 | ? | ? | designation skipped ? | ||||||
| I-33 | Yakovlev | ? | Yak-3 with M-106; limited production. | ||||||
| I-34 to | ? | ? | designation skipped ? | ||||||
| I-60 | |||||||||
| I-61 | Mikoyan-Gurevich | Kh | Redesignated MiG-1. | ||||||
| I-62 | ? | ? | designation skipped ? | ||||||
| I-63 | Mikoyan-Gurevich | Kh | Redesignated MiG-1. | ||||||
| I-64 to | ? | ? | designation skipped ? | ||||||
| I-109 | |||||||||
| I-110 | Tomashevich | 110 | One prototype. | ||||||
| I-111 | ? | ? | designation skipped ? | ||||||
| to I-199 | |||||||||
| I-200 | Mikoyan-Gurevich | Kh | Redesignated MiG-3. | ||||||
| I-201 to | ? | ? | designation skipped ? | ||||||
| I-206 | |||||||||
| I-207 | Borovkov-Florov | Izdelye 7 | 4 x small biplane prototypes. | ||||||
| I-208 to | ? | ? | designation skipped ? | ||||||
| I-209 | |||||||||
| I-210 | Mikoyan-Gurevich | IKh | Also known as MiG-3/M-82; redesignated MiG-9; 5 x prototypes. | ||||||
| I-211 | Mikoyan-Gurevich | Ye | Refined I-210; 1 x prototype; 10 x production; saw action. | ||||||
| I-211 | Alekseyev | I-211 | 1 x prototype; 2 x jet. | ||||||
| I-212 | Alekseyev | I-212 | 1 x prototype night/all-weather interceptor; unflown. | ||||||
| I-213 | Alekseyev | I-213 | Unbuilt development of I-212. | ||||||
| I-214 | Alekseyev | I-214 | Unbuilt development of I-213. | ||||||
| I-215 | Alekseyev | I-215 | Development of I-211 with R-R Derwent. | ||||||
| I-216 | Alekseyev | I-216 | Unbuilt anti-armor development of I-211. | ||||||
| I-217 | Alekseyev | I-217 | Unbuilt forward-swept wing type; 2 x jet. | ||||||
| I-218 | Alekseyev | 218 | 1 x prototype anti-armor; piston. | ||||||
| I-219 | Alekseyev | I-219 | Unbuilt development of I-218. | ||||||
| I-220 | Mikoyan-Gurevich | A | High-altitude counter-Ju 86P; redesignated MiG-11; 2 x prototypes. | ||||||
| I-220 | Alekseyev | I-220 | Unbuilt. | ||||||
| I-221 | Mikoyan-Gurevich | 2A | Development of I-220; redesignated MiG-7; 1 x prototype. | ||||||
| I-221 | Alekseyev | I-221 | Unbuilt jet development of I-218 to I-220 types. | ||||||
| I-222 | Mikoyan-Gurevich | 3A | Pressurized development of I-221; also known as MiG-7; 1 x prototype. | ||||||
| I-223 | ? | ? | designation skipped ? | ||||||
| I-224 | Mikoyan-Gurevich | 4A | Development of I-222; also known as MiG-7; 1 x prototype. | ||||||
| I-225 | Mikoyan-Gurevich | 5A | Culmination of I-220-224; 2 x prototypes. | ||||||
| I-226 to | ? | ? | designation skipped ? | ||||||
| I-229 | |||||||||
| I-230 | Mikoyan-Gurevich | D | Refined MiG-3; 2 x prototypes; 5 x pre-series; also known as MiG-3U, MiG-3D; saw action. | ||||||
| I-231 | Mikoyan-Gurevich | 2D | I-230 w/ AM-39A; no production. | ||||||
| I-232 to | ? | ? | designation skipped ? | ||||||
| I-249 | |||||||||
| I-250 | Mikoyan-Gurevich | N | Accelerated (VRDK) counter-Me-262 interceptor; redesignated MiG-13; limited production; saw service. | ||||||
| I-251 to | ? | ? | designation skipped ? | ||||||
| I-269 | |||||||||
| I-270 | Mikoyan-Gurevich | Zh | Rocket point-defense; 2 x prototypes. | ||||||
| I-271 to | ? | ? | designation skipped ? | ||||||
| I-299 | |||||||||
| I-300 | Mikoyan-Gurevich | F | Prototype MiG-9. | ||||||
| I-301 | Mikoyan-Gurevich | FS | Redesignated MiG-9; ASCC 'Fargo.' | ||||||
| I-302 | Tikhonravov | 302 | Rocket & ramjet interceptor; 2 x gliders only. | ||||||
| I-302 | Mikoyan-Gurevich | FP | Weapons testbed MiG-9. | ||||||
| I-303 | ? | ? | designation skipped ? | ||||||
| I-304 | ? | ? | designation skipped ? | ||||||
| I-305 | Mikoyan-Gurevich | FL | MiG-9 w/ 1 x TR-1A; incomplete (I-310). | ||||||
| I-306 | ? | ? | designation skipped ? | ||||||
| I-307 | Mikoyan-Gurevich | FF | Engine & armament testbed MiG-9; nickname Babotchka. | ||||||
| I-308 | Mikoyan-Gurevich | FR | Implemented as MiG-9M; incomplete (I-310). | ||||||
| I-309 | ? | ? | designation skipped ? | ||||||
| I-310 | Mikoyan-Gurevich | S | Prototype of MiG-15; ASCC 'Fagot.' | ||||||
| I-311 | ? | ? | designation skipped ? | ||||||
| I-312 | Mikoyan-Gurevich | ST | Trainer; MiG-15UTI; ASCC 'Midget.' | ||||||
| I-313 to | ? | ? | designation skipped ? | ||||||
| I-319 | |||||||||
| I-320 | Mikoyan-Gurevich | FN | MiG-9 w/ R-R Nene; unbuilt. | ||||||
| I-320 | Mikoyan-Gurevich | R | Twin-engine day/night fighter development of MiG-15; 3 x prototypes. | ||||||
| I-321 | ? | ? | designation skipped ? | ||||||
| to I-329 | |||||||||
| I-330 | Sukhoi | I-330 | Turbocharged predecessor of Su-3; redesignated Su-1; 1 x prototype. | ||||||
| I-330 | Mikoyan-Gurevich | SI | MiG-17; ASCC 'Fresco.' | ||||||
| I-331 to | ? | ? | designation skipped ? | ||||||
| I-339 | |||||||||
| I-340 | Mikoyan-Gurevich | SM-1 | Twin engine MiG-17 prototype. | ||||||
| I-341 to | ? | ? | designation skipped ? | ||||||
| I-349 | |||||||||
| I-350 | Mikoyan-Gurevich | M | Supersonic fighter prototype. | ||||||
| I-351 to | ? | ? | designation skipped ? | ||||||
| I-359 | |||||||||
| I-360 | Sukhoi | I-360 | Development of Su-1; redesignated Su-3; 1 x prototype. | ||||||
| I-360 | Mikoyan-Gurevich | SM-2 | Development of I-340 and I-350; 1 x prototype; led to MiG-19. | ||||||
| I-361 to | ? | ? | designation skipped ? | ||||||
| I-369 | |||||||||
| I-370 | Mikoyan-Gurevich | I-1, I-2 | Single - engine MiG-19 parallel development. | ||||||
| I-371 to | ? | ? | designation skipped ? | ||||||
| I-379 | |||||||||
| I-380 | Mikoyan-Gurevich | I-3 | Swept-wing MiG-21 predecessor; incomplete. | ||||||
| I-381 to | ? | ? | designation skipped ? | ||||||
| I-409 | |||||||||
| I-410 | Mikoyan-Gurevich | I-5, I-3U | Redesigned I-380. | ||||||
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