Polikarpov I-15
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Polikarpov I-15
Polikarpov I-15 Chaika ou I-152 & 156
Sur Wikipedia de langue anglaise :
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The [Vous devez être inscrit et connecté pour voir ce lien] I-15 ([Vous devez être inscrit et connecté pour voir ce lien]: И-15) was a Soviet [Vous devez être inscrit et connecté pour voir ce lien] of the 1930s. Nicknamed Chaika
([Vous devez être inscrit et connecté pour voir ce lien]: И-15 Чайка, "Lapwing") because of its [Vous devez être inscrit et connecté pour voir ce lien] upper wings, it was operated in large numbers by
the Soviet Air Force, and together with the [Vous devez être inscrit et connecté pour voir ce lien] monoplane, was one of the standard fighters of the [Vous devez être inscrit et connecté pour voir ce lien] during the [Vous devez être inscrit et connecté pour voir ce lien], where it was called Chato (snub-nose) in the Republican Air Force, or
"Curtiss" (because its resemblance to [Vous devez être inscrit et connecté pour voir ce lien]) in the Nationalist Air Force.
Sur Wikipedia de langue anglaise :
----------------------------------------------
The [Vous devez être inscrit et connecté pour voir ce lien] I-15 ([Vous devez être inscrit et connecté pour voir ce lien]: И-15) was a Soviet [Vous devez être inscrit et connecté pour voir ce lien] of the 1930s. Nicknamed Chaika
([Vous devez être inscrit et connecté pour voir ce lien]: И-15 Чайка, "Lapwing") because of its [Vous devez être inscrit et connecté pour voir ce lien] upper wings, it was operated in large numbers by
the Soviet Air Force, and together with the [Vous devez être inscrit et connecté pour voir ce lien] monoplane, was one of the standard fighters of the [Vous devez être inscrit et connecté pour voir ce lien] during the [Vous devez être inscrit et connecté pour voir ce lien], where it was called Chato (snub-nose) in the Republican Air Force, or
"Curtiss" (because its resemblance to [Vous devez être inscrit et connecté pour voir ce lien]) in the Nationalist Air Force.
Vicant2- CLUB
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Re: Polikarpov I-15
Design and development
The design for the 14th fighter for the [Vous devez être inscrit et connecté pour voir ce lien], the I-14, started as an advanced (for the era) monoplane under the direction of [Vous devez être inscrit et connecté pour voir ce lien].
He grew concerned that the design would not mature, and ordered two backup biplane designs as the I-14A and B just to be safe.
[Vous devez être inscrit et connecté pour voir ce lien] had just been released from prison in August 1932, and was handed the I-14A project.
When both the I-14 and I-14A were ordered into production, Polikarpov's design, a development of the [Vous devez être inscrit et connecté pour voir ce lien] fighter became the famous I-15.
The design for the 14th fighter for the [Vous devez être inscrit et connecté pour voir ce lien], the I-14, started as an advanced (for the era) monoplane under the direction of [Vous devez être inscrit et connecté pour voir ce lien].
He grew concerned that the design would not mature, and ordered two backup biplane designs as the I-14A and B just to be safe.
[Vous devez être inscrit et connecté pour voir ce lien] had just been released from prison in August 1932, and was handed the I-14A project.
When both the I-14 and I-14A were ordered into production, Polikarpov's design, a development of the [Vous devez être inscrit et connecté pour voir ce lien] fighter became the famous I-15.
Vicant2- CLUB
- Messages : 2155
Re: Polikarpov I-15
The first flight was made in October 1933 with [Vous devez être inscrit et connecté pour voir ce lien] at the controls, powered by an imported [Vous devez être inscrit et connecté pour voir ce lien] Cyclone engine.
The I-15, also known by its development name TsKB-3, was a small biplane fighter with a gulled upper wing.
The single bay wings were of wooden construction, while the fuselage was of mixed steel and duralumin construction, with a fabric covered rear fuselage.
The I-15, also known by its development name TsKB-3, was a small biplane fighter with a gulled upper wing.
The single bay wings were of wooden construction, while the fuselage was of mixed steel and duralumin construction, with a fabric covered rear fuselage.
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Re: Polikarpov I-15
Production started in 1934, initially being powered by the M-22, a licensed built version of the [Vous devez être inscrit et connecté pour voir ce lien].
While less powerful than the Cyclone, the M-22 powered aircraft were still superior to the I-5 which it replaced, demonstrating excellent manoeuvrability.
Production switched to the 515 kW (700 [Vous devez être inscrit et connecté pour voir ce lien]) M-25 engine (a license built Cyclone) in late 1936.
A total of 671 I-15s were built, 284 in the Soviet Union and a further 287 under license by [Vous devez être inscrit et connecté pour voir ce lien] in Spain.
While less powerful than the Cyclone, the M-22 powered aircraft were still superior to the I-5 which it replaced, demonstrating excellent manoeuvrability.
Production switched to the 515 kW (700 [Vous devez être inscrit et connecté pour voir ce lien]) M-25 engine (a license built Cyclone) in late 1936.
A total of 671 I-15s were built, 284 in the Soviet Union and a further 287 under license by [Vous devez être inscrit et connecté pour voir ce lien] in Spain.
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Re: Polikarpov I-15
The gulled upper wing of the I-15 was unpopular with some pilots, as it was felt to restrict visibility, so Polikarpov's [Vous devez être inscrit et connecté pour voir ce lien] produced a revised version, again powered by the M-25, with a longer span un-gulled upper wing.
This version, the I-15bis, commenced production in 1937, a total of 2,408 I-15bis' being delivered by the time production finished in 1940.
This version, the I-15bis, commenced production in 1937, a total of 2,408 I-15bis' being delivered by the time production finished in 1940.
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Re: Polikarpov I-15
Operational history
The I-15 was used in combat extensively by the Republicans in the [Vous devez être inscrit et connecté pour voir ce lien] and proved to be one of the best fighter biplanes of its time.
The I-15bis also saw a great amount of action in [Vous devez être inscrit et connecté pour voir ce lien] and [Vous devez être inscrit et connecté pour voir ce lien] in the various border clashes between the Russians and the Japanese.
The I-15 was used in combat extensively by the Republicans in the [Vous devez être inscrit et connecté pour voir ce lien] and proved to be one of the best fighter biplanes of its time.
The I-15bis also saw a great amount of action in [Vous devez être inscrit et connecté pour voir ce lien] and [Vous devez être inscrit et connecté pour voir ce lien] in the various border clashes between the Russians and the Japanese.
Vicant2- CLUB
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Re: Polikarpov I-15
In 1937, I-15s in the hands of the [Vous devez être inscrit et connecté pour voir ce lien] fought against invading Japanese, where the tough [Vous devez être inscrit et connecté pour voir ce lien] began to meet its match in some of the newer, faster Japanese [Vous devez être inscrit et connecté pour voir ce lien].
More than 1,000 I-15bis fighters were still in use during the German invasion when the biplane was employed in
the ground attack role.
By late 1942, all I-15s and I-15bis' were relegated to second line duties.
More than 1,000 I-15bis fighters were still in use during the German invasion when the biplane was employed in
the ground attack role.
By late 1942, all I-15s and I-15bis' were relegated to second line duties.
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Re: Polikarpov I-15
Variants
TsKB-3bis
Prototype.
TsKB-3ter
Prototype fitted with the more powerful M-25V radial piston engine.
TsKB-3bis
Prototype.
TsKB-3ter
Prototype fitted with the more powerful M-25V radial piston engine.
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Re: Polikarpov I-15
I-15
First production series.
I-15bis
Single-seat fighter biplane, armed with four 7.62 mm (0.30 in)PV-1 or ShKAS machine guns, plus up to 150 kg (330 lb) of bombs.
The I-15bis was powered by the more powerful 570 kW (775 PS) [Vous devez être inscrit et connecté pour voir ce lien]V radial piston engine.
It had a straight upper wing. A total of 2,408 machines were built.
I-152
Modernised version of I-15bis. One built in
1938. Series production was not undertaken, since it was decided to build I-153
instead.
First production series.
I-15bis
Single-seat fighter biplane, armed with four 7.62 mm (0.30 in)PV-1 or ShKAS machine guns, plus up to 150 kg (330 lb) of bombs.
The I-15bis was powered by the more powerful 570 kW (775 PS) [Vous devez être inscrit et connecté pour voir ce lien]V radial piston engine.
It had a straight upper wing. A total of 2,408 machines were built.
I-152
Modernised version of I-15bis. One built in
1938. Series production was not undertaken, since it was decided to build I-153
instead.
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Re: Polikarpov I-15
I-152GK
(Germetichyeskoi Kabine – hermetic (pressure) cabin) - One aircraft fitted with a pressure cabin.
I-152TK
(Turbo Kompressor - turbo-charged) - One aircraft fitted with two turbochargers.
[Vous devez être inscrit et connecté pour voir ce lien]
Development of the I-15 with retractable landing gear, see [Vous devez être inscrit et connecté pour voir ce lien].
UTI-1
(Oochebno Trenirovochnyy Istrebitel' - fighter trainer) - Factory built two seat trainer version, front cockpit moved
forwards, dual controls fitted, 20 built in 1934 but not used by VVS
(Germetichyeskoi Kabine – hermetic (pressure) cabin) - One aircraft fitted with a pressure cabin.
I-152TK
(Turbo Kompressor - turbo-charged) - One aircraft fitted with two turbochargers.
[Vous devez être inscrit et connecté pour voir ce lien]
Development of the I-15 with retractable landing gear, see [Vous devez être inscrit et connecté pour voir ce lien].
UTI-1
(Oochebno Trenirovochnyy Istrebitel' - fighter trainer) - Factory built two seat trainer version, front cockpit moved
forwards, dual controls fitted, 20 built in 1934 but not used by VVS
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Re: Polikarpov I-15
Voici, donc un extrait du chapitre I-153 :
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While the wholly unremarkable I-15bis was entering production, the [Vous devez être inscrit et connecté pour voir ce lien] was already working on a more advanced version with the new [Vous devez être inscrit et connecté pour voir ce lien] machine guns, [Vous devez être inscrit et connecté pour voir ce lien] engine, and retractable landing gear; this was one of the first projects that Artem Mikoyan of future [Vous devez être inscrit et connecté pour voir ce lien] fame actively took part in.
The proposal for the new fighter called I-153 (literally, I-15, 3rd version) was submitted in 1937.
The first prototype powered by the [Vous devez être inscrit et connecté pour voir ce lien] engine was completed in August 1938.
It failed factory testing due to numerous defects which were largely corrected in the second prototype and the aircraft entered production concurrently with ongoing testing and development.
In test flights, the I-153 (M-25) achieved the top speed of 424 km/h (263 mph), service ceiling of 8,700 m (28,543 ft), and required 6 minutes 24 seconds to reach 5,000 m (16,404 ft).
This was disappointing performance but Polikarpov had high hopes for the new [Vous devez être inscrit et connecté pour voir ce lien] engine.
---------------------------------((
While the wholly unremarkable I-15bis was entering production, the [Vous devez être inscrit et connecté pour voir ce lien] was already working on a more advanced version with the new [Vous devez être inscrit et connecté pour voir ce lien] machine guns, [Vous devez être inscrit et connecté pour voir ce lien] engine, and retractable landing gear; this was one of the first projects that Artem Mikoyan of future [Vous devez être inscrit et connecté pour voir ce lien] fame actively took part in.
The proposal for the new fighter called I-153 (literally, I-15, 3rd version) was submitted in 1937.
The first prototype powered by the [Vous devez être inscrit et connecté pour voir ce lien] engine was completed in August 1938.
It failed factory testing due to numerous defects which were largely corrected in the second prototype and the aircraft entered production concurrently with ongoing testing and development.
In test flights, the I-153 (M-25) achieved the top speed of 424 km/h (263 mph), service ceiling of 8,700 m (28,543 ft), and required 6 minutes 24 seconds to reach 5,000 m (16,404 ft).
This was disappointing performance but Polikarpov had high hopes for the new [Vous devez être inscrit et connecté pour voir ce lien] engine.
Vicant2- CLUB
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Re: Polikarpov I-15
Specifications (I-153 (M-62))
General characteristics
Performance
Armament
General characteristics
- Crew: One
- Length: 6.18 m (20 ft 3 in)
- [Vous devez être inscrit et connecté pour voir ce lien]:
- Top wing: 10.0 m (32 ft 10 in)
- Bottom wing: 7.5 m (24 ft 7 in)
- Height: 3.0 m (9 ft 10 in)
- Wing area: 22.1 m² (237.8 ft²)
- Empty weight: 1,348 kg (2,972 lb)
- Loaded weight: 1,765 kg (3,891 lb)
- [Vous devez être inscrit et connecté pour voir ce lien]: 1,859 kg (4,098 lb)
- Powerplant: 1× [Vous devez être inscrit et connecté pour voir ce lien], 597 kW (800 hp)
Performance
- [Vous devez être inscrit et connecté pour voir ce lien]: 426 km/h (265 mph)
- [Vous devez être inscrit et connecté pour voir ce lien]: 740 km (460 mi)
- [Vous devez être inscrit et connecté pour voir ce lien]: 11,000 m (36,089 ft)
- [Vous devez être inscrit et connecté pour voir ce lien]: 15 m/s (2,985 ft/min)
- [Vous devez être inscrit et connecté pour voir ce lien]: 80 kg/m² (16 lb/ft²)
- [Vous devez être inscrit et connecté pour voir ce lien]: 0.34 kW/kg (0.21 hp/lb)
Armament
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