Miles Whitney Straight

from Wikipedia, the free encyclopedia
M.11 Whitney Straight
WhitneyStraight2576.jpg
M.11A Whitney Straight (G-AEZO) after the King's Cup Race in Hatfield on September 11, 1937
Type: Light aircraft
Design country:

United KingdomUnited Kingdom United Kingdom

Manufacturer:

Miles Aircraft

First flight:

May 14, 1936

Production time:

1936-1937

Number of pieces:

50

The Miles M.11 Whitney Straight is a two-seat light aircraft from the British manufacturer Miles Aircraft , which was designed for use in flying clubs in Great Britain.

development and construction

Miles Whitney Straight G-AERV, 2011
Miles Whitney Straight G-AERV, 2013

The M.11 Whitney Straight was developed by Frederick George Miles at Phillips and Powis in collaboration with racing driver , pilot and businessman Whitney Straight . The aim was to comfortably accommodate the occupants and their luggage in a closed cockpit with seats arranged next to each other. The result was a low-wing aircraft with a rigid, aerodynamically clad tail wheel landing gear . The aircraft consists of frames made of spruce wood , which are clad with three-layer Port Orford cedar plywood , mostly made of wood. The wings have vacuum operated slotted flaps . It is powered by a de Havilland Gipsy Major I with a nominal output of 130  PS (96  kW ).

use

On 14 May 1936, the completed prototype with the air vehicle registration G-AECT controlled by Frederick Miles its maiden flight from the airfield in Woodley . When production ceased in 1937, 50 had been built.

On June 28, 1938, the M.11C with the registration G-AEYI crashed over Harefield in Berkshire . The pilot Wing Commander FW Stent was killed in the crash. Modified Whitney Straights were used for engine testing and testing of various flap designs . After the outbreak of World War II in 1939, the Air Ministry requisitioned twenty-three machines for military service as liaison aircraft . Twenty-one of these were stationed in the United Kingdom , one in India and one in Egypt . One M.11A was used by the Fleet Air Arm between 1940 and 1943 , and three more by the Royal New Zealand Air Force .

Between 1939 and 1943, Alan Pritchard used an M.11A at Ninety Mile Beach , New Zealand, for experiments with airborne seeds and later for spraying superphosphate . These attempts were part of the development of agricultural fertilizer flying.

Versions

Source: DL Brown, 1970, pp. 377-380

M.11
Prototype, one copy built
M.11A
Series version, 49 copies built.
M.11B
Third production copy (serial number 305), which was equipped with an Amherst Villiers Maya I with 135  HP (99  kW ). It gave the machine a 10  mph (16  km / h ) increased maximum speed and a maximum rate of climb of 200 ft / min (1 m / s).
M.11C
Serial production number 341 was equipped with a de Havilland Gipsy Major II with 145 HP (107 kW) and a controllable pitch propeller .

operator

New ZealandNew Zealand New Zealand
United KingdomUnited Kingdom United Kingdom

Preserved copies

Technical data (M.11A)

Parameter Data
crew 1
Passengers 1
length 25  ft (7.62  m )
span 35.67 ft (10.87 m)
height 6.5 ft (1.98 m)
Wing area 187  ft² (17.4  )
Wing extension 6.8
Empty mass 1,275  lb (578  kg )
Max. Takeoff mass 1,896 lb (860 kg)
Cruising speed 130  mph (209  km / h )
Top speed 145 mph (233 km / h)
Service ceiling 18,500 ft (5,639 m)
Range 500  NM (926  km )
Engines 1 × de Havilland Gipsy Major I with 130  PS (96  kW )

See also

literature

  • Don L. Brown: Miles Aircraft since 1925 , Putnam & Co., 1970, ISBN 0 370 00127 3 ; Pp. 121-128
  • Arthur WJG Ord-Hume: British Light Airplanes - Their Evolution, Development and Perfection 1920-1940 , GMS Aviation Books, 2000, ISBN 1-870384-76-8 , pp. 421-422
  • David Mondey: The Hamlyn Concise Guide to British Aircraft of World War II . Chancellor Press, 2002, ISBN 1-85152-668-4 (English).

Web links

Commons : Miles Whitney Straight  - Collection of Images, Videos and Audio Files

Individual evidence

  1. Tom Moulson: The Millionaires' Squadron: The Remarkable Story of 601 Squadron and the Flying Sword . Pen and Sword, Barnsley, South Yorkshire 2014, ISBN 978-1-78346-339-8 , pp. 110 ff . (English, google.com ).
  2. ^ Martin Bowman: Lost Wings of WWI: Downed Airmen on the Western Front 1914-1918 . Pen and Sword, Barnsley, South Yorkshire 2014, ISBN 978-1-4738-4226-7 , pp. 303 ff . (English, google.com ).
  3. ^ A b c Don L. Brown: Miles Aircraft since 1925 . 1st edition. Putnam & Company Ltd., London 1970, ISBN 0-370-00127-3 , pp. 121-128 (English).
  4. a b c A. J. Jackson: British civil aircraft 1919–1972 Volume III . 2nd Edition. Putnam, London 1974, ISBN 978-0-370-10014-2 , pp. 62-65 (English).