I-15 M-25

I-15 M-25

I-15 M-22

I-15bis

I-15 M-25

I-15 M-22

I-15bis

USSR

I Rank

Battle rating:

AB	RB	SB
1.0	1.0	1.0

Class:

Fighter

Research:Free

Purchase:Free

Show in game

This page is about the Russian fighter I-15 M-25. For other uses, see I-15 (Family).

Description

The I-15 M-25 in the garage

The I-15 M-25 is a rank I Russian fighter with a battle rating of 1.0 (AB/RB/SB). This fighter has been in the game since the start of the Open Beta Test prior to Update 1.29.

General info

Flight Performance

Characteristics
Stock
Max Speed (km/h at 3,000 m)		Max altitude (meters)	Turn time (seconds)		Rate of climb (meters/second)		Take-off run (meters)
AB	RB		AB	RB	AB	RB
358	348	9200	8.1	8.7	10.5	10.5	125
Upgraded
Max Speed (km/h at 3,000 m)		Max altitude (meters)	Turn time (seconds)		Rate of climb (meters/second)		Take-off run (meters)
AB	RB		AB	RB	AB	RB
379	368	9200	7.9	8.0	16.9	13.4	125

Details

Features
Combat flap	Take-off flap	Landing flap	Air brakes	Arrestor gear
X	X	X	X	X

Limits
Wing-break speed (km/h)	Gear limit (km/h)	Combat flap (km/h)	Max Static G
			+	-
560	560	???	~??	~?

Optimal velocities
Ailerons (km/h)	Rudder (km/h)	Elevators (km/h)	Radiator (km/h)
< ???	< ???	< ???	> ???

Compressor (RB/SB)
Setting 1
Optimal altitude	100% Engine power	WEP Engine power
?,??? m	??? hp	?,??? hp

Survivability and armour

• No armour plating
• No armour glazing
• Critical components located at the front of aircraft (fuel, pilot, engine, controls)
• More fuel tanks located in wings near the fuselage

Usage in the battles

Manual Engine Control

MEC elements
Mixer	Pitch	Radiator			Supercharger	Turbocharger
		Oil	Water	Type
Controllable	Not controllable	Not controllable	Not controllable	Separate	Not ontrollable	Not controllable

Modules

Tier	Flight performance		Survivability	Weaponry
I	Fuselage Repair	Radiator
II		Compressor	Airframe
III	Wings Repair	Engine
IV		Engine Injection	Cover

Pros and cons

Pros:

Cons:

History

Describe the history of the creation and combat usage of the aircraft in more detail than in the introduction. If the historical reference turns out to be too big, take it to a separate article, taking a link to an article about the vehicle and adding a block "/ historical reference" (example: https://wiki.warthunder.com/Name-vehicles/historical reference) and add a link to it here using the main template. Be sure to include links to sources at the end of the article.

In-game description

"Polikarpov I-15 (TsKB-3) single-engine fighter, produced in 1935

The launch of the Soviet licensed version of the Wright Cyclone SGR-1820 engine, under the designation M-25, was quite drawn out; therefore, a majority of production I-15s were equipped with M-22 (a licensed version of the British Bristol Jupiter VI) nine-cylinder, air-cooled engines, whose rated power was only 480 hp. This significantly worsened the plane's flight characteristics.

Aircraft from the final production series had M-25 engines. In addition, they had one more pair of 7.62 mm synchronous PV-1 machine guns. Most I-15s had fixed-pitch propellers, but some machines received VISh-6 controllable-pitch propellers.

In Spain, in the autumn of 1936, the I-15 fighter was used for the first time in the field. The first air battle involving an I-15 took place on November 4. A total of 186 I-15 fighters were received by the Republicans from the USSR.

I-15 fighters were also used in the Khalkhyn Gol frontier conflict, in the Winter War of 1939-40, and even during the initial period of World War II (mainly as ground-attack aircraft). However, the plane was considered obsolete even by the Battle of Khalkhyn Gol.

Stable and handy, with good flight characteristics, exceptional manoeuvrability, and excellent takeoff/landing parameters, the I-15 fighter enjoyed a well-deserved success among pilots.

Some I-15 fighters were used as personal command vehicles. For example, a drawing of a flying red banner with the words ""FOR VKP (B)"", i. e. ""For the All-Union Communist Party (of Bolsheviks)"", was applied to the fuselage of the personal I-15 of Brigade Commander I. U. Pavlov, and a bent white arrow directed down was painted on the red rudder. The metal skin of the nose fuselage was polished in a frost pattern.

On November 21, 1935, the test pilot V. K. Kokkinaki established the world's unofficial (as the USSR was not yet a member of the FAI) flight altitude record of 14,575 m while flying a special TsKB-3 with a reduced weight.

The I-15's manoeuvrability was excellent, and its short fuselage and large control surfaces ensured the fighter's agility. Not a single major rival of the I-15 in Spain (neither the German He 51 fighter nor the Italian CR.32) was its equal in these characteristics.

The I-15's full-scale production was discontinued in 1936. A total of 384 aircraft were manufactured at Factories No. 1 and No. 39 from 1934-36. In addition, 291 more aircraft were built under licence in Republican Spain."

Media

An excellent addition to the article will be video guides, as well as screenshots from the game and photos.

Read also

Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example,

• reference to the series of the aircraft;
• links to approximate analogues of other nations and research trees.

Sources

Paste links to sources and external resources, such as:

• topic on the official game forum;
• page on aircraft encyclopedia;
• other literature.