Yokosuka H7Y1 12-Shi ("Tillie")
Hiro H7Y1 12-Shi ("Tillie")

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Note: illustration is a guess, as no photos or official drawings exist.

Scant reports of a "Type 97-II" copy of the four-engined French Leo H-24-6 transport flying boat led to assignment of the code name "Tillie". The aircraft was actually an original Japanese design powered by Junkers Jumo 205c engines that was dropped in the experimental stage. Please refer to the links below for more information on this aircraft.   (Source: "World War Two Japanese Aircraft from A to Z" published in Air Progress magazine, July 1964)

Yokosuka H7Y1 12-Shi

Type:           Flying Boat

Data from Japanese Aircraft 1910–1941

General characteristics

• Crew: 4
• Max takeoff weight: 18,000 kg (39,683 lb)
• Powerplant: 4 × Junkers Jumo 205C  6-cylinder water-cooled opposed piston diesel engines, 380 kW (510 hp) each at 2,100 rpm

Performance

• Range: 9,254 km (5,750 mi, 4,997 nmi) minimum (projected)

Armament

• Guns: 2 or 3× 7.7 mm (0.303 in) machine guns
• Bombs: 1,600 kg (3,500 lb) of bombs or 2x torpedoes (estimated, as it was meant as a recon aircraft only)

Wikipedia page on the H7Y1 is HERE.
Additional information on this aircraft can be found in the forum HERE.
A YouTube video on this aircraft can be found HERE.

(go to Hiro page)

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