BI

BI

BI

USSR

V Rank

Battle rating:

AB	RB	SB
6.7	6.7	6.3

Class:

Fighter

Jet fighter

Purchase:Bundle or Gift

Show in game

MARKET

Description

The BI is a gift rank V Soviet jet fighter with a battle rating of 6.7 (AB/RB) and 6.3 (SB). It was introduced during Update "Raining Fire" as a reward for the 2020 Wargame "Strategist" event.

General info

Flight performance

Characteristics	Max Speed (km/h at 4,500 m)		Max altitude (metres)	Turn time (seconds)		Rate of climb (metres/second)		Take-off run (metres)
	AB	RB		AB	RB	AB	RB
Stock	793	787	12000	21.2	21.2	84.9	79.4	400
Upgraded	___	___		__._	__._	__._	__._

Details

Features
Combat flaps	Take-off flaps	Landing flaps	Air brakes	Arrestor gear	Drogue chute
X	X	✓	X	X	X

Limits
Wings (km/h)	Gear (km/h)	Flaps (km/h)			Max Static G
		Combat	Take-off	Landing	+	-
920	420	N/A	N/A	320	~9	~3

Optimal velocities (km/h)
Ailerons	Rudder	Elevators	Radiator
< 400	< 410	< 550	N/A

Engine performance

Engine			Aircraft mass
Engine name		Number	Basic Mass	Wing loading (full fuel)
Isaev D-1a		1	924 kg	233 kg/m2
Engine characteristics			Mass with fuel (no weapons load)		Max Takeoff Weight
Weight (each)	Type		0m fuel	1m fuel
300 kg	Liquid-fuel rocket		1,134 kg	1,629 kg	1,650 kg
Maximum engine thrust @ 0 m (RB / SB)			Thrust to weight ratio @ 0 m (100%)
Condition	100%	WEP	0m fuel	1m fuel	MTOW
Stationary	1,121 kgf	N/A	0.99	0.69	0.68
Optimal	1,121 kgf (any speed)	N/A	0.99	0.69	0.68

Survivability and armour

Examine the survivability of the aircraft. Note how vulnerable the structure is and how secure the pilot is, whether the fuel tanks are armoured, etc. Describe the armour, if there is any, and also mention the vulnerability of other critical aircraft systems.

Armaments

Offensive armament

The BI is armed with:

• 2 x 20 mm ShVAK cannons, nose-mounted (45 rpg = 90 total)

Usage in battles

Describe the tactics of playing in the aircraft, the features of using aircraft in a team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view, but instead, give the reader food for thought. Examine the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).

Modules

Tier	Flight performance	Survivability	Weaponry
I	Fuselage repair		Offensive 20 mm
II		Airframe
III	Wings repair		New 20 mm cannons
IV	Engine	Cover

Pros and cons

Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".

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 long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/History" (example: https://wiki.warthunder.com/(Vehicle-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref></ref>, as well as adding them at the end of the article with <references />. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under === In-game description ===, also if applicable).

Media

Excellent additions to the article would be video guides, screenshots from the game, and photos.

See 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.

External links

Paste links to sources and external resources, such as:

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