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The Tachikawa Ki-17 (九五式三型練習機, Kyugoshiki san-gata renshuki) was a basic training aircraft of the Imperial Japanese Army Air Force built by Tachikawa Aircraft Company Ltd in the 1930s. It was known to the Allies under the nickname of Cedar during World War II.

Ki-17
Tachikawa Ki-17
Role	Military training aircraft Type of aircraft
Manufacturer	Tachikawa Aircraft Company Ltd
First flight	July 1935
Primary user	Imperial Japanese Army Air Academy
Produced	1936 - 1943
Number built	560

Design and development

The Ki-9 was originally planned to be manufactured in two versions using the same basic airframe, but with different engines for service as either a primary or intermediate trainer. However, when the lower-powered form proved to be unsuitable due a center of gravity issue, design of a new airframe was ordered for the basic trainer version, and was given the new designation of Ki-17.[1]

Compared to the Ki-9, the Ki-17 had equal-span wings, a slimmer fuselage and a revised tailplane. It was powered by a 112 kW (150 hp) Hitachi Ha-13a radial engine. The first prototype flew in July 1935.[1]

The only major change made to subsequent production aircraft was the deletion of the upper-wing ailerons to eliminate oversensitive control inputs.[2]

Operational history

The Ki-17 was introduced to service as the Army Type 95-3 Basic Grade Trainer Model A under the former aircraft naming nomenclature system. Tachikawa manufactured 560[3] Ki-17s between 1936 and 1943 and the type saw service with the Army Air Academy and flight training schools.[2]

Operators

 Japan

• Kumagaya Army Flying Training School
• Mito Army Flying Training School
• Tachiari Army Flying Training School
• Utsonomiya Army Flying Training School
• Imperial Japanese Army Air Force Academy (Rikugun Kōku Shikan Gakkō)

 Thailand

• Royal Thai Air Force

Specifications (Ki-17)

Data from Japanese Aircraft of the Pacific War[4]

General characteristics

• Crew: 2
• Length: 7.8 m (25 ft 7 in)
• Wingspan: 9.82 m (32 ft 3 in)
• Height: 2.95 m (9 ft 8 in)
• Wing area: 26.02 m² (280.1 sq ft)
• Empty weight: 618 kg (1,362 lb)
• Gross weight: 900 kg (1,984 lb)
• Powerplant: 1 × Hitachi Ha12 (Army Type 95 150hp Air Cooled Radial) 7-cylinder air-cooled radial piston engine, 110 kW (150 hp) for take-off
• Propellers: 2-bladed fixed-pitch wooden propeller

Performance

• Maximum speed: 170 km/h (110 mph, 92 kn)
• Cruise speed: 130 km/h (81 mph, 70 kn)
• Endurance: 3 hours 27 minutes
• Service ceiling: 5,300 m (17,400 ft)
• Wing loading: 34.6 kg/m² (7.1 lb/sq ft)
• Power/mass: 0.125 kW/kg (0.076 hp/lb)

See also

Aircraft of comparable role, configuration, and era

• de Havilland Tiger Moth

Related lists

• List of military aircraft of Japan

References

Notes

Bibliography

На других языках

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[de] Tachikawa Ki-17

Die Tachikawa Ki-17 (alliierter Codename „Cedar“) war ein japanisches Schulflugzeug für Anfänger in Doppeldeckerauslegung. Ursprünglich war eine schwächer motorisierte Version der Ki-9 für diesen Zweck vorgesehen. Da diese Ki-9-Version jedoch ungeeignet war, wurde entschieden, stattdessen ein neues Flugzeug zu entwickeln – die Ki-17.

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- [en] Tachikawa Ki-17

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[it] Tachikawa Ki-17

Il Tachikawa Ki-17 (は キ17?), indicato anche, in base a diversa convenzione, Aereo da addestramento primario per l'Esercito Tipo 95-3 (九五式三型練習機 Kyugoshiki san-gata renshuki?), e al quale venne assegnato dagli alleati il nome in codice Cedar (cedro)[2], fu un aereo da addestramento basico monomotore, biposto e biplano, sviluppato dall'azienda aeronautica giapponese Ishikawajima Hikōki Seisakushō negli anni trenta e prodotto anche con la nuova realtà aziendale con la mutata ragione sociale Tachikawa Hikōki KK.

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[ru] Tachikawa Ki-17

Tachikawa Ki-17 (яп. 九五式三型練習機 Кю:госики сан-гата рэнсю:ки) — учебный самолёт Японии.

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