F-89B

This page is about the American jet fighter F-89B. For other version, see F-89D.

F-89B

F-89D

F-89B

F-89D

USA

V Rank

Battle rating:

AB	RB	SB
6.7	7.0	7.3

Class:

PREMIUM

Fighter

Jet fighter

Purchase:7 540

Description

The F-89B is a premium rank V American jet fighter with a battle rating of 6.7 (AB), 7.0 (RB), and 7.3 (SB). It was introduced in Update 1.91 "Night Vision".

The F-89B Scorpion was designed and built to be an all-weather interceptor intended to neutralize any potential invading Soviet bomber force. The USAAF was intent in replacing the P-61 Black Widow with another night fighter, one specifically which would fly faster (minimum 850 km/h (530 mph)) almost assuredly requiring the usage of jets, six sixty-calibre machine guns or 20 mm autocannons and armed with internally stored aerial rockets. To round out the aircraft for ground attack if needed, it would also need to accommodate 1,000 lb bombs and eight larger rocket types externally. Initial wind tunnel testing of the fighter determined that the proposed swept-wings were insufficient at slow speeds and were changed out with straight wings. Though causing a loss of high-end performance, increased stability at low speeds was necessary.

Other changes to the horizontal stabilizer also increased the effectiveness of the elevators and rudder. Concerns about the fuel tanks situated right over the engines were nullified when it was determined that efforts made by Northrop to protect them were considered sufficient, anything else would have required a complete redesign of the aircraft.

Other key features of the Scorpion was the usage of decelerons or clamshell-style split ailerons which work as a standard aileron, however, can open up as a dive brake or be utilized as a takeoff/landing flap. Last-minute changes by the Air Force required upgrading the engines and outfitting an afterburner, adding a radar system, fire control system, permanent wingtip fuel tanks, reconfigured nose guns and easy access to lower the entire engine to make for easier maintenance.

The F-89B was an upgraded version of the F-89A, primarily featuring only upgraded avionics. Armament remained standard with six nose-mounted 20 mm cannons. As an interceptor, the F-89B was well suited to have the six nose-mounted cannons which did not require the pilot to have to worry about convergence, especially when flying at higher speeds. The tightly packed cannons concentrated the 20 mm rounds in a tight pattern and when fired in bursts can unleash devastation on both enemy bomber and fighter aircraft, especially suited for head-ons or even strafing runs aimed at the wings or engine sections of the aircraft. While there are only 200 rounds per gun (1,200 total), they are not meant for the pilot to just hold the trigger and spray but instead require a bit of trigger control and fire in short bursts as typically it does not take much to disable or destroy another aircraft.

The F-89B is a fairly large aircraft and can be an easy target for other aircraft, so speed is key to maintain manoeuvrability and make it difficult for an enemy fighter to get a positive gun solution on the Scorpion. Boom & Zoom tactics will be the best bet for this fighter as while it is a stable flyer when going slow, it, however, will be an easy target and slow manoeuvring aircraft without the advantage of speed.

General info

Flight performance

Air brakes

Allows you to dramatically reduce the flight speed by releasing special flaps

Max speed

at 3 200 m1 011 km/h

Turn time28 s

Max altitude15 240 m

Engine2 х Allison J35-A-21B

Type

Cooling systemAir

Take-off weight17 t

Characteristics	Max Speed (km/h at 3,200 m)		Max altitude (metres)	Turn time (seconds)		Rate of climb (metres/second)		Take-off run (metres)
	AB	RB		AB	RB	AB	RB
Stock	999	992	15240	28.3	29.5	40.5	38.4	747
Upgraded	1,022	1,011		27.7	28.0	59.0	49.4

Details

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

Limits
Wings (km/h)	Gear (km/h)	Flaps (km/h)			Max Static G
		Combat	Take-off	Landing	+	-
920	379	554	447	379	~8	~3

Optimal velocities (km/h)
Ailerons	Rudder	Elevators	Radiator
< 760	< 800	< 700	N/A

Engine performance

Engine			Aircraft mass
Engine name		Number	Empty mass			Wing loading (full fuel)
Allison J35-A-21B		2	11,780 kg			291 kg/m2
Engine characteristics			Mass with fuel (no weapons load)						Max Takeoff Weight
Weight (each)	Type		19m fuel	20m fuel	30m fuel	45m fuel	60m fuel	64m fuel
1,300 kg	Afterburning axial-flow turbojet		13,181 kg	13,253 kg	13,971 kg	15,048 kg	16,126 kg	16,413 kg	16,703 kg
Maximum engine thrust @ 0 m (RB / SB)			Thrust to weight ratio @ 0 m (WEP)
Condition	100%	WEP	19m fuel	20m fuel	30m fuel	45m fuel	60m fuel	64m fuel	MTOW
Stationary	2,141 kgf	2,912 kgf	0.44	0.44	0.42	0.39	0.36	0.35	0.35
Optimal	2,229 kgf (800 km/h)	3,255 kgf (800 km/h)	0.49	0.49	0.47	0.43	0.40	0.40	0.39

Survivability and armour

Crew2 people

Speed of destruction

Structural920 km/h

Gear379 km/h

The F-89B has two 12.7 mm steel armour plates in the nose and a 60 mm bulletproof windshield. The wing tips will break past the aileron at 920+ km/h (depending on altitude) and will count as a vehicle loss. However, the plane can limp back to base if the pilot: maintain speed/don't turn sharp to avoid a spin, approach the airfield low and straight on, open the air brake to help balance the broken wing, roll the intact wing down, lower the gear at < 300 km/h then roll back level onto the runway. There the pilot can repair his plane and get back in the fight!

Modifications and economy

Repair cost

AB2 083

RB6 376

SB8 679

Crew training10 000

Experts550 000

Aces1 800

Research Aces1 550 000

Reward for battleAB / RB / SB

2 × 130 / 340 / 600 %

2 × 202 / 202 / 202 %

Modifications

Flight performance	Survivability	Weaponry
Fuselage repair Compressor Wings repair Engine G-suit	Airframe EFS Cover	t_160_belt_pack t_160_new_gun

Armaments

Offensive armament

Weapon 16 x 20 mm M24A1 cannon

Ammunition1 200 rounds

Fire rate750 shots/min

The F-89B is armed with:

• 6 x 20 mm M24A1 cannons, nose-mounted (200 rpg = 1,200 total)

The F-89B is armed with 6 x M24A1 20 mm cannons in the nose. Although each gun only holds 200 rounds (1,200 total), a well-aimed burst can easily cripple or destroy any air or ground target.

Usage in battles

This aircraft has deadly frontal cannons, but they also have a very high rate of fire, so it is recommended to keep an eye on ammo count through the course of a battle. Air Target belts are the most effective ammunition belt for destroying enemy aircraft and the AP belt for ground units. Usage in ground RB: The F-89B is an effective ground attack aircraft if used correctly. With the 20 mm ammunition belt for armored targets, with 53 mm max penetration, can effectively neutralize most adversary ground units of its battle rating. It can also be used in any game mode as a very potent fighter.

Although fast, this plane has poor rudder authority at high speeds, and this makes high speed boom and zoom attacks more difficult. It's large tail section also makes aiming challenging at times. However, this setup also gives the plane good elevator authority under 800 km/h and especially between 700 and 750 km/h. Above this speed (and below 600 km/h), elevator control also suffers. Although perhaps not comparable to the Ho 229, this plane does have a much better turn rate than the Me 262. Finally, the roll rate is moderate. Horizontal axis maneuvers are best conducted rolling the aircraft vertically and turning with the elevator.

This aircraft is prone to wing-ripping above 900 km/h, and when in a dive, it may be necessary to employ the vehicle's very effective air-brakes in order to stay below this speed. It is also important to note that utilizing the afterburner in level flight may cause a fatal accident if speed is not maintained within limits. Wing-rips are also common when concurrently pulling negative G's and rolling.

Thanks to the F-89B's afterburners, it has excellent acceleration, and can out-climb most aircraft at its tier. Its high output engines gives players a huge advantage in the battle-space. Players can exploit its high acceleration and speed. When dog-fighting, the F-89B performs very well in vertical maneuvers. The aircraft's afterburners give the pilot a significant advantage over adversaries without after-burning engines.

Radars

The F-89B is equipped with an AN/APG-33 rangefinding radar, located in the nose of the aircraft. It will automatically detect other planes within the scanning area and display the range to the closest target.

AN/APG-33 - Rangefinding radar
Maximum Tracking Range	Minimum Tracking Range	Azimuth Tracking Angle	Elevation Tracking Angle
2,000 m	150 m	±5°	±5°

Pros and cons

Pros:

• Six nose-mounted 20 mm cannons
• Good at top down attacks on many ground units
• Excellent for head-on attacks
• Quick acceleration with afterburner
• Dual-engine, flyable with one
• Targeting radar

Cons:

• Large Profile
• Significant drop in performance with damaged flight surfaces.
• No internal or external payload options (rockets, bombs, etc.)
• Sluggish flight performance compared to common adversaries.

History

Almost immediately after WWII, the Nothrop Corporation began developing an experimental jet fighter-interceptor to meet the new requirements for that class of aircraft. The American interceptor's primary targets were supposed to be Soviet bombers, so the projected model's flight characteristics and armament had to meet this objective. At first the two-seater twin-engine jet was developed to have a rather interesting four gun turret. This turret was to be mounted on the aircraft's nose and could fire on targets either automatically or manually along a vertical plane either forward, up, down or, in some cases, backward. However, when the experimental model of the aircraft was ready, the turret still hadn't undergone testing yet, so the military decided to install traditional static frontal guns on it, as well as HVARs on the wing pylons. It was with this loadout that the Scorpion F-89A and F-89B went into service. The armament was switched exclusively to rockets somewhat later. To make the change to rockets, the designers implemented an interesting solution: Mighty Mouse unguided rockets were installed on the front of the wing-mounted fuel tanks in such a way that the rocket and fuel sections of this part of the design were separated by a fireproof barrier. This also made it possible to install heavier, more destructive HVARs under the wing. The F-89D or "rocket" version of the Scorpion went on to become the most widespread version of the aircraft in the US air force – 682 of them were manufactured.

- From Devblog

Media

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

See also

• F-89D - Rocket-armed variant of the fighter.

External links

• [Development] F-89B and F-89D Scorpion: Jet Bros
• Official data sheet - more details about the performance

Northrop Corporation
Fighters	P-61A-11 · P-61C-1
Jet fighters	F-89B · F-89D
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	F-20A
Export	␗F-5A · ▄F-5E FCU