Tachikawa Ki-74 PATSY

1944

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  BOMBER, RECONNAISSANCEVirtual Aircraft Museum / Japan / Tachikawa  

Tachikawa Ki-74 PATSY

From 1937 Tachikawa produced a number of interesting designs which did not go into series production. These included the TS-1 single-seat ultra-light low-wing cabin monoplane; the R-38 two-seat parasol-wing monoplane primary trainer; the SS-1 twin-engined low-wing monoplane developed from the Lockheed 14 and intended for high-altitude research; the Ki-70 twin-engined high-speed reconnaissance monoplane; and the A-26, later redesignated Ki-77, a long-distance record aircraft with a remarkably slim fuselage and finely tapered wide-span monoplane wings. However, it was the Tachikawa Ki-74 monoplane which attracted the greatest official support. By 1941 the project had been confirmed as a long-range high-altitude bomber reconnaissance aircraft, and the first of the prototypes, powered by 1641kW turbocharged Ha-211-Ru radials, flew in March 1944. Thirteen pre-production machines followed, powered by more reliable 1491kW Ha-104 Ru engines, giving a maximum speed of 570km/h at 8500m. They carried 1000kg of bombs and were defended by a single remotely-controlled 12.7mm machine-gun in the tail. Although not used operationally, the Ki-74 received the Allied codename 'Patsy'.

Tachikawa Ki-74 PATSY

Specification 
 MODELKi-74
 CREW5
 ENGINE2 x Mitsubishi Ha-104-Ru, 1500kW
 WEIGHTS
  Take-off weight19400 kg42770 lb
  Empty weight10200 kg22487 lb
 DIMENSIONS
  Wingspan27 m89 ft 7 in
  Length17.65 m58 ft 11 in
  Height5.1 m17 ft 9 in
  Wing area80 m2861.11 sq ft
 PERFORMANCE
  Max. speed570 km/h354 mph
  Cruise speed400 km/h249 mph
  Ceiling12000 m39350 ft
  Range w/max.fuel8000 km4971 miles
 ARMAMENT1 x 12.7mm machine-guns, 1000kg of bombs

3-View 
Tachikawa Ki-74 PATSYA three-view drawing (752 x 848)

Comments
Hiroyuki Takeuchi, e-mail, 23.03.2012 10:24

This plane was equipped with a copy of a Norden bombsight and a search radar. The 8000km range is short compared to the Ki77 world distance record plane which flew 16,435km (and still had 800 liters in the tank upon landing), on which the design was based .

reply

choqing, 20.06.2011 07:20

I dislike asymmetric cockpits as here and on some Canberras; it hurts the eye.

reply

Sven Ortmann, e-mail, 30.07.2009 21:57

The Ju388 is comparable, but the Ki-74's 8,000 km range is unbelievable.

I dislike asymmetric cockpits as here and on some Canberras; it hurts the eye.

reply

Janusz, e-mail, 15.02.2009 19:27

Interesting design:) I don't see any similarity do B-17:) Even if we start spook about "he has a tail, so it is similarity to B-17";)

reply

Janusz, e-mail, 15.02.2009 19:27

Interesting design:) I don't see any similarity do B-17:) Even if we start spook about "he has a tail, so it is similarity to B-17";)

reply

Sgt.KAR98, 03.01.2009 17:46

B-17 tail?

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