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Tachikawa Ki-94

Fighter Prototype

Tachikawa Ki-94

Fighter Prototype


The Tachikawa Ki-94 emerged through two very different fighter forms in the latter part of World War 2 - only one was furthered into prototype form.
National Flag Graphic
ORIGIN: Imperial Japan
YEAR: 1945
STATUS: Cancelled
MANUFACTURER(S): Tachikawa Aircraft Company Ltd - Imperial Japan
OPERATORS: Imperial Japan (cancelled)

Unless otherwise noted the presented statistics below pertain to the Tachikawa Ki-94 model. Common measurements, and their respective conversions, are shown when possible.
LENGTH: 39.37 feet (12 meters)
WIDTH: 45.93 feet (14 meters)
HEIGHT: 15.26 feet (4.65 meters)
WEIGHT (EMPTY): 10,229 pounds (4,640 kilograms)
WEIGHT (MTOW): 14,220 pounds (6,450 kilograms)
ENGINE: 1 x Nakajima Ha-219 (Ha-44/12) 18-cylinder air-cooled radial piston engine developing 2,460 horsepower.
SPEED (MAX): 442 miles-per-hour (712 kilometers-per-hour; 384 knots)
RANGE: 1,305 miles (2,100 kilometers; 1,134 nautical miles)
CEILING: 48,163 feet (14,680 meters; 9.12 miles)
RATE-OF-CLIMB: 1,880 feet-per-minute (573 meters-per-minute)

STANDARD (Ki-94-I, proposed):
2 x 37mm cannons
2 x 30mm cannons

2 x 30mm Ho-155 cannons in wings
2 x 20mm Ho-5 cannons in wings

2 x 550 lb bombs
Graphical image of an aircrat automatic cannon
Graphical image of an aircraft conventional drop bomb munition

Series Model Variants
• Ki-94 - Base Series Designation
• Ki-94-I - Twin-boom, push-pull configuration; Nakajima Ha-211 engine; armed with 2 x 37mm cannons and 2 x 30mm cannons; mock-up form only.
• Ki-94-II - Conventional fighter design; Nakajima Ha-219 engine of 2,461 horsepower driving six-bladed propeller; 2 x 30mm and 2 x 20mm cannons in wings with 2 x 550lb bomb provision.


Detailing the development and operational history of the Tachikawa Ki-94 Fighter Prototype.  Entry last updated on 2/8/2018. Authored by Staff Writer. Content ©
Many aircraft in development by Japan at the time of the surrender of 1945 were ended in whatever state they resided (if they had not already been destroyed, either by the Japanese themselves or by the relentless Allied air campaign). Tachikawa undertook two late-war programs intended as bomber interceptors for the Army under the "Ki-94" designation. As the American Boeing B-29 "Superfortress" high-altitude heavy bomber became the primary concern for the Japanese homeland, a high-altitude fighter capable of intercepting these machines was in order.

The initial Ki-94 offering, later bestowed the designation of "Ki-94-I" was a unique twin-boom, single-engine/twin-propeller fighter design with a centralized fuselage nacelle housing the cockpit, armament and engine. The wing mainplanes were low-mounted with the booms emanating from their trailing edges. The single-seat cockpit was fitted at the center of the fuselage nacelle with the engine in the nose. The aircraft would be powered by one engine installation - a Nakajima Ha-211 18-cylinder air-cooled radial piston type - while driving a twin-propeller arrangement: there was a four-bladed propeller unit at the nose and a second unit at the extreme end of the fuselage nacelle driven via an extension shaft (termed a "push-pull" configuration). Proposed armament was 2 x 37mm cannons along with 2 x 30mm cannons - a formidable frontal "punch" against any Allied bomber of the war.

This design proved too complex for the Army and was passed on by authorities.

Tachikawa Ki-94 (Cont'd)

Fighter Prototype

Tachikawa Ki-94 (Cont'd)

Fighter Prototype

The follow-up Ki-94-II took on a more conventional design arrangement. A low-wing monoplane planform was used which sat the wings ahead of midships and the cockpit over it. The tail unit utilized a single vertical plane along with two low-set horizontal planes. The engine was held in the nose and a tail-dragger undercarriage featured. A pressurized cockpit was to be used to satisfy the high-altitude requirement. Power came from a Nakajima Ha-219 (Ha-44-12) 18-cylinder of 2,461 horsepower output driving a six-bladed propeller unit. Armament centered on 2 x 30mm Ho-155 series cannons paired with 2 x 20mm Ho-5 cannons - all fitted to the wing elements. There would be provision for carrying 2 x 550 lb drop bombs for the attack role if needed.

It was this second offering that was championed by the Army and further development would be had through three prototypes and one static test airframe. Additionally there would be some eighteen pre-production aircraft for useful operational experience. The first prototype appeared fitted with a Nakajima Ha-219 engine of 2,541 horsepower though only a four-bladed propeller was available to pair with it. The prototype did not see a first flight due to the end of the war in August 1945. A second prototype was still under construction at about this time and not completed. All work was scrapped in the period following the close of the war.


Our Data Modules allow for quick visual reference when comparing a single entry against contemporary designs. Areas covered include general ratings, speed assessments, and relative ranges based on distances between major cities.

Image of collection of graph types

Relative Maximum Speed
Hi: 500mph
Lo: 250mph
This entry's maximum listed speed (442mph).

Graph average of 375 miles-per-hour.
City-to-City Ranges
Graph showcases the Tachikawa Ki-94's operational range (on internal fuel) when compared to distances between major cities.
Aviation Era
Pie graph section
Pie graph section
Pie graph section
Pie graph section
Pie graph section
Useful in showcasing the era cross-over of particular aircraft/aerospace designs.
Unit Production (2)
Comm. Market HI*: 44,000 units
Military Market HI**: 36,183 units

  * Commercial Market High belongs to Cessna 172.

  ** Military Market High belongs to Ilyushin Il-2.

Altitude Visualization
Small airplane graphic
Supported Roles
Ground Attack
Aerial Tanker
A2A=Air-to-Air; UAV=Unmanned; CAS=Close Support; ASW=Anti-Submarine; AEW=Airborne Early Warning; MEDEVAC=Medical Evac; EW=Electronic Warfare; SAR=Search-Rescue
Commitments / Honors
Military lapel ribbon for Operation Allied Force
Military lapel ribbon for the Arab-Israeli War
Military lapel ribbon for the Battle of Britain
Military lapel ribbon for the Battle of Midway
Military lapel ribbon for the Berlin Airlift
Military lapel ribbon for the Chaco War
Military lapel ribbon for the Cold War
Military lapel ribbon for the Cuban Missile Crisis
Military lapel ribbon for pioneering aircraft
Military lapel ribbon for the Falklands War
Military lapel ribbon for the French-Indochina War
Military lapel ribbon for the Golden Age of Flight
Military lapel ribbon for the 1991 Gulf War
Military lapel ribbon for the Indo-Pak Wars
Military lapel ribbon for the Iran-Iraq War
Military lapel ribbon for the Korean War
Military lapel ribbon for the 1982 Lebanon War
Military lapel ribbon for the Malayan Emergency
Military lapel ribbon representing modern aircraft
Military lapel ribbon for the attack on Pearl Harbor
Military lapel ribbon for the Six Day War
Military lapel ribbon for the Soviet-Afghan War
Military lapel ribbon for the Spanish Civil War
Military lapel ribbon for the Suez Crisis
Military lapel ribbon for the Vietnam War
Military lapel ribbon for Warsaw Pact of the Cold War-era
Military lapel ribbon for the WASP (WW2)
Military lapel ribbon for the World War 1
Military lapel ribbon for the World War 2
Military lapel ribbon for the Yom Kippur War
Military lapel ribbon for experimental x-plane aircraft
* Ribbons not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective campaigns/operations.

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