Aeroplane Monthly 1987-12
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A.Lumsden, T.Heffernan - Per Mare Probare (9)
The Short R.24/31 on the company slipway at Rochester in February 1934.
View of the Knuckleduster showing wing float mountings: The intermediate inverted-vee struts with sprung diagonal
The Rolls-Royce Goshawk engines of the Knuckleduster were mounted high on the wing “knuckles" so that the propellers were well clear of spray during take-off.
The Knuckleduster photographed at the RAF Pageant at Hendon in July 1935. It appeared in formation with several other experimental flying-boats.
The unusual gull-winged Short R.24/31 Knuckleduster, K3574.
View of the Knuckleduster showing wing float mountings: The original wide single struts with wire cross-bracing;
K3574 photographed during trials by the MAEE at Felixstowe. Flight described the Knuckleduster thus: “a craft to make one open ones eyes, and perhaps rub them".
View of the Knuckleduster showing wing float mountings: The final single strut mounting retaining the sprung diagonal.