Yokosuka R2Y

Yokosuka R2Y

Role	Reconnaissance, Fighter
Manufacturer	Yokosuka
First flight	8 May 1945
Status	Cancelled
Primary user	Imperial Japanese Navy (intended)
Number built	2

The Yokosuka R2Y Keiun (景雲 - "Cirrus Cloud") was a prototype reconnaissance aircraft built in Japan late in World War II.

Design and development

Commissioned for the Imperial Japanese Navy after the R1Y design was cancelled due to its disappointing performance estimates, the R2Y used coupled engines driving a single propeller and also featured a tricycle undercarriage.

Completed in April 1945, the prototype made a short flight on 8 May, but was destroyed in a US air raid only a few days later, thus ending development.

A proposal was also made to develop the R2Y into a turbojet-powered light bomber by replacing its piston engines with two Mitsubishi Ne-330s. Designated the R2Y2 Keiun-Kai, the prototype was begun but never completed.

Specifications (R2Y1)

Data from Japanese Aircraft of the Pacific War^[1]

General characteristics

Crew: 2
Length: 13.05 m (42 ft 10 in)
Wingspan: 14.00 m (45 ft 11 in)
Height: 4.24 m (13 ft 9 in)
Wing area: 34.0 m² (366 ft²)
Empty weight: 6,015 kg (13,261 lb)
Loaded weight: 8,100 kg (17,857 lb)
Max. takeoff weight: 9,400 kg (20,723 lb)
Powerplant: 1 × Aichi Ha-70 (Two 1,300 kW (1,700 hp) Aichi Atsuta engines coupled to a gearbox), 2,500 kW (3,400 hp)

Performance

Maximum speed: 770 km/h (416 kn, 480 mph)
Range: 3,610 km (1,949 nmi, 2,251 mi)
Service ceiling: 12,700 m (38,376 ft)
Rate of climb: 1100 m/min (3609 ft/min)
Wing loading: 238 kg/m² (49 lb/ft²)
Power/mass: 31 W/kg (0.19 hp/lb)

References

Notes

↑ Francillon 1979, p. 475.

Bibliography

Francillon, Ph.D., René J. Japanese Aircraft of the Pacific War. London: Putnam & Company Ltd., 1970 (2nd edition 1979). ISBN 0-370-30251-6.

External links

Media related to Yokosuka R2Y Keiun at Wikimedia Commons

Aircraft designed by the Yokosuka Naval Air Technical Arsenal

Torpedo bombers	B3Y B4Y

Dive bombers	D2Y D3Y D4Y D5Y

Reconnaissance seaplanes	Ro-go Ko-gata E1Y Tatsu-go 1-go E5Y E6Y E14Y

Flying boats	H5Y H7Y

Training aircraft	I-go Ko-gata K1Y K2Y K4Y K5Y

Transport aircraft	L3Y

Special-purpose aircraft	MXY1 MXY2 MXY3 MXY5 MXY6 MXY7 MXY8 MXY9 MXY10

Bombers	P1Y

Land-based Reconnaissance	R2Y

World War II Allied reporting names	Baka Cherry Dot Frances Glen Jean Judy Nell Tillie Willow

Japanese Navy Reconnaissance Aircraft designations

Carrier-based	C1M C2N C3N C4A C5M C6N CXP

Land-based	R1Y R2Y

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