Miles Hawcon
{{Use dmy dates|date=January 2018}}
{{Use British English|date=January 2018}}
{{Infobox aircraft
|name = M.6 Hawcon
|image =
|caption =
|type = Two seat experimental monoplane
|manufacturer = Miles Aircraft Limited
|designer = Frederick George Miles
|first_flight = 1935
|introduction =
|retired =
|status =
|primary_user = Royal Aircraft Establishment
|more_users =
|produced =
|number_built = 1
|developed_from =
|variants =
}}
The Miles M.6 Hawcon was a 1930s British experimental monoplane designed by Miles Aircraft Limited. The Hawcon name comes from a combination of Hawk and Falcon.
Design and development
The M.6 Hawcon was a one-off experimental monoplane designed for thick-wing research by the Royal Aircraft Establishment. The Hawcon combined parts from both the Hawk and Falcon and was powered by a 200 hp (149 kW) de Havilland Gipsy Six piston engine.
Operational history
The aircraft, serial number K5925, was used for thick-wing research by the Royal Aircraft Establishment. It had four interchangeable wings of different thickness. The aim was to investigate the performance penalties of thicker wings, which had structural advantages (lower weight for the same strength) and provided space for fuel etc.
The four wings, labelled A to D had root thickness to chord ratios of 0.15, 0.20, 0.25 and 0.30. The trials showed that the thickness had little effect on maximum speed: wing B was faster than A by 5 m.p.h. (less than 3%) and the other wings fell between. The maximum speed given below is for the D wing, as are the dimensions and weights.Lukins & Russell p.36-7
For comparison, modern low Mach number aircraft have root thickness to chord ratios of 0.14 - 0.20.Fielding p.21
Operators
;{{UK}}
Specifications (M.6)
{{Aircraft specs
|prime units? = imp
|ref=Russell & Lukins Russell & Lukins p.36-7
|crew=Two
|length m=7.6
|length ft=25
|span m=12
|span ft=39
|span in=5
|height m=1.9
|height ft=6
|height in=6
|wing area sqm=14.6
|wing area sqft=161
|empty weight kg=703
|empty weight lb=1,550
|gross weight kg=1,088
|gross weight lb=2,400
|eng1 number=1
|eng1 name=de Havilland Gipsy Six piston engine
|eng1 kw=149
|eng1 hp=200
|max speed kmh=290
|max speed mph=180
}}
See also
References
=Notes=
{{reflist}}
=Bibliography=
{{refbegin}}
- Amos, Peter. and Brown, Don Lambert. Miles Aircraft Since 1925, Volume 1. London: Putnam Aeronautical, 2000. {{ISBN|0-85177-787-2}}.
- Brown, Don Lambert. Miles Aircraft Since 1925. London: Putnam & Company Ltd., 1970. {{ISBN|0-370-00127-3}}.
- The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.
- Jackson, A.J. British Civil Aircraft since 1919. London: Putnam, 1974. {{ISBN|0-370-10014-X}}.
- Jackson, A.J. British Civil Aircraft since 1919, Volume 3. London: Putnam, 1988. {{ISBN|0-85177-818-6}}.
- Lukins, A.H. and Russell, D.A. The book of Miles aircraft. Leicester UK: Harborough 1945
- Fielding, John P. Introduction to Aircraft Design, Cambridge UK:Cambridge University Press 1999. {{ISBN|0-521-44319-9}}.
{{refend}}
{{Miles aircraft}}
Category:1930s British experimental aircraft
Category:Single-engined tractor aircraft