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Conceived as an emergency fighter for production in the event that the RAF began to run short of more orthodox fighting aircraft, the M.20 was designed by Walter Capley to Specification F.19/40. Of wooden construction with all emphasis placed on rapidity of manufacture, the M.20 dispensed with a retractable undercarriage, thereby eliminating the need for hydraulics, utilised a one-piece wing, adopted a standard Rolls-Royce Merlin XX installation interchangeable with that of the Beaufighter II and employed standard Master cockpit equipment. The first prototype was designed, built and flown in the remarkably short time of 65 days. Powered by a 1,300hp Merlin XX engine and fitted with eight 7,7mm machine guns (but having provision for up to 12 guns), the M.20 was first flown on 15 September 1940. In the event, the Battle of Britain terminated before the RAF exhausted its available supplies of Hurricanes and Spitfires, and the M.20 was not, therefore, placed in production. However, Specification N.1/41 for a single-seat shipboard fighter covered reconstruction of the prototype with a jettisonable undercarriage, suiting it for use from catapults on the CAM-ships. It was tested in 1941-42 but no further development was undertaken.
| WEIGHTS |
| Take-off weight | 3519 kg | 7758 lb |
| Empty weight | 2663 kg | 5871 lb |
| DIMENSIONS |
| Wingspan | 10.54 m | 35 ft 7 in |
| Length | 9.17 m | 30 ft 1 in |
| Height | 3.81 m | 13 ft 6 in |
| Wing area | 21.74 m2 | 234.01 sq ft |
| PERFORMANCE |
| Max. speed | 536 km/h | 333 mph |
| Ceiling | 6280 m | 20600 ft |
| Range | 885 km | 550 miles |
 | A three-view drawing of The navalised M.20 (1648 x 1168) |
| Barry, 14.05.2012 The reason the Finns did so well with a plane that really was a heap of junk was that they were up against a badly trained force using even more inferior equipment.Whereas the RAF were outflown and out performed by superior planes and superior pilots (at that time). | | Concerned Observer, 22.07.2011 "...and even in a service that never received a decent domestic fighter"
[cough]Sea Harrier[cough] | | Ward Emigh, wardemigh=msn.com, 27.04.2011 I drew plans(23%)and built the Miles M.20/4. Powered by a 3W-80 gas engine. Flies like a pattern plane and has exceptional low speed performace because of the 21% thich wing (NACA 23021). Color: upper side camouflage (RAF Dark Earth & RAF Dark Green with underside Trainer Yellow. | | John Blackburn, john123blackburn=btinternet.com, 13.04.2011 A side issue, but IF the Brewster Buffalo was so hopeless, why did the Finns do so WELL with theirs? | | Kadesh, 16.02.2011 Some sources say it carried ten .30 cals, where does that come from? | | Tim Harris, tim_harris53=yahoo.co.uk, 04.04.2010 Fantastic Aircraft which shows that Britain didn't think it was doing too bad in the Battle of Britain or it would have been produced. There is a free card model in 1/72 scale at http://www.papermodelers.com and at http://kampfflieger.webs.com there is a model of the Martin Baker MB2 at a modest price which is very similar and the foreunner of the MB5 which according to Eric Brown it was the best propellor driven aircraft of WW2 - and he should know, he flew all of them.
Tim | | Martin, rickards_es=yahoo.com, 27.03.2010 I'd guess it was the standard brown and green camouflage of the time with pale blue undersides | | angel, a.bao=hotmail.es, 21.02.2010 Does anyone know of plans/kit with a 75-80 inch wing span?
thanks
angel, Spain | | Art deco, 10.07.2009 Although relatively appealing, the M.20 wasn't a good handler. It was tested for naval use, and even in a service that never received a decent domestic fighter, was rejected, even for throw-away cam-ship use. It's use in tropical climate would have subjected it to the same problems that befell the Mossie. Dissimilar wood shrinkage and glue that becomes cheese. Perhaps, if it were fitted with something aerodynamically similar to DH Mossie outer wing panels, it coulda been a contender... | | Rich, rich6467=comcast.net, 16.02.2009 Does anyone know of plans/kit with a 75-80 inch wing span? | | Bill Krouwel, w.krouwel\, 15.01.2009 What a brilliant aircraft - faster (and appaently more manoevrable) than a Hurricane, aand with better range.
It's a shame that MIles weren't allowed to produce it for , e.g. the far East where it would have been far more effective against Japanese Zeroes than the appalling Brewster Buffalo proved to be...no match, possibly, but a muich better chance of doing a fair bit of damage... | | ward emigh, wardemigh=msn.com, 18.05.2007 What is the color scheme of this M.20 ( U-0228 )aircraft?
I am drawing plans for an 8 ft. wing span R/C model. |
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Do you have any comments about this aircraft ?
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