World War 2 In Review No. 27: Mitsubishi Ki-46 Dinah

By Merriam Press

Merriam Press World War 2 In Review Series

2023 eBook Edition

Coverage of the Mitsubishi Ki-46, a twin-engine reconnaissance aircraft used by the Imperial Japanese Army Air Force in World War II. Its Army Shiki designation was Type 100 Command Reconnaissance Aircraft; the Allied nickname was “Dinah."

In 1944-45, during the last days of the war, it was modified as a high-altitude interceptor, with two 20mm cannons in the nose and one 37mm cannon in an "upwards-and-forwards" position (similar to the Luftwaffe's Schräge Musik night fighter cannon emplacements) for fighting USAAF B-29 Superfortresses over the metropolitan Japanese islands.

255 B&W/color photos/illustrations

• Language: English
• Publisher: Lulu.com
• Release date: Nov 11, 2017
• ISBN: 9781387356409

Book preview

World War 2 In Review No. 27: Mitsubishi Ki-46 Dinah

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Hoosick Falls, New York

2023 eBook Edition

ISBN 9781387356409

Copyright © 2017 by Merriam Press

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Additional material copyright of named contributors.

The views expressed are solely those of the author(s).

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Merriam Press, 489 South Street, Hoosick Falls NY 12090

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Mitsubishi Ki-46

The Mitsubishi Ki-46 was a twin-engine reconnaissance aircraft used by the Imperial Japanese Army in World War II. Its Army Shiki designation was Type 100 Command Reconnaissance Aircraft; the Allied nickname was Dinah.

On 12 December 1937, the Imperial Japanese Army Air Force issued a specification to Mitsubishi for a long-range strategic reconnaissance aircraft to replace the Mitsubishi Ki-15. The specification demanded an endurance of six hours and sufficient speed to evade interception by any fighter in existence or development, but otherwise did not constrain the design by a team led by Tomio Kubo (a 1931 graduate from the Aeronautical Section of the Faculty of Engineering at Tokyo Imperial University) whose aesthetics are densely infused to this elegant aircraft.

The resulting design was a twin-engined, low-winged monoplane with a retractable tailwheel undercarriage. It had a small diameter oval fuselage which accommodated a crew of two, with the pilot and observer situated in individual cockpits separated by a large fuel tank. Further fuel tanks were situated in the thin wings both inboard and outboard of the engines, giving a total fuel capacity of 1,490 L (328 imperial gallons). The engines, two Mitsubishi Ha-26s, were