The BFW M.21 was a single-engined biplane trainer designed by Willy Messerschmitt for the German Ministry of Transport. It was one of only two biplanes Messerschmitt designed, neither reaching production.
During 1927, following the success of his M 18 airliner tried to gain funding from the Baverian government; because the latter were already subsiding BFW (Bayerische Flugzeug-Werke) they pressed for an arrangement whereby Willy Messerschmitt joined BFW on the understanding the company produced only his designs.[1] During these negotiations, completed on 8 September 1927, the Ministry of Transport put pressure on Messerschmitt to produce military aircraft. This led to the only two biplanes Messerschmitt ever designed, the first of which was the BFW M.21, otherwise known as the Messerschmitt M 21.
It was a two-seat single-engined trainer of single bay biplane layout.[2] The wings, which folded for transport had parallel chord, no sweep and very little stagger and there were ailerons on both planes. The upper wing had a rounded cut out for improved visibility from the rear cockpit; the forward cockpit was under the wing. The fuselage was square sided with triangular upper decking behind the open cockpits and it tapered to the rear, making the generous fin and rudder appear even more prominent. A conventional single axle plus tail skid undercarriage was fitted.
The M.21 was powered by an uncowled radial engine, either the 96 hp (72 kW) Siemens Sh 11 (M.21a) or the 125 hp (93 kW) Sh 12 (M.21b) driving a two-bladed propeller.[2] It first flew in 1928 but was not accepted for production, so only one was built.[3] This example, civil registered as D-1566 flew until 1933 with DVS GmbH, the German sport flying association.
Smith, J Richard (1971). Messerschmitt an aircraft album. London: Ian Allan. ISBN0-7110-0224-X.
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January 01, 1970
single, engined, biplane, trainer, designed, willy, messerschmitt, german, ministry, transport, only, biplanes, messerschmitt, designed, neither, reaching, production, role, seat, biplane, trainer, national, origin, germany, manufacturer, bayerische, flugzeugw. The BFW M 21 was a single engined biplane trainer designed by Willy Messerschmitt for the German Ministry of Transport It was one of only two biplanes Messerschmitt designed neither reaching production M 21 Role Two seat biplane trainer National origin Germany Manufacturer Bayerische Flugzeugwerke BFW Designer Willy Messerschmitt First flight 1928 Retired 1933 Number built 1 Contents 1 Design and development 2 Specifications M 21b 3 References 4 External linksDesign and development editDuring 1927 following the success of his M 18 airliner tried to gain funding from the Baverian government because the latter were already subsiding BFW Bayerische Flugzeug Werke they pressed for an arrangement whereby Willy Messerschmitt joined BFW on the understanding the company produced only his designs 1 During these negotiations completed on 8 September 1927 the Ministry of Transport put pressure on Messerschmitt to produce military aircraft This led to the only two biplanes Messerschmitt ever designed the first of which was the BFW M 21 otherwise known as the Messerschmitt M 21 It was a two seat single engined trainer of single bay biplane layout 2 The wings which folded for transport had parallel chord no sweep and very little stagger and there were ailerons on both planes The upper wing had a rounded cut out for improved visibility from the rear cockpit the forward cockpit was under the wing The fuselage was square sided with triangular upper decking behind the open cockpits and it tapered to the rear making the generous fin and rudder appear even more prominent A conventional single axle plus tail skid undercarriage was fitted The M 21 was powered by an uncowled radial engine either the 96 hp 72 kW Siemens Sh 11 M 21a or the 125 hp 93 kW Sh 12 M 21b driving a two bladed propeller 2 It first flew in 1928 but was not accepted for production so only one was built 3 This example civil registered as D 1566 flew until 1933 with DVS GmbH the German sport flying association Specifications M 21b editData from Smith 1971 p 22General characteristicsCrew 2 Length 7 30 m 23 ft 11 5 in Wingspan 10 00 m 32 ft 9 75 in Height 2 80 m 9 ft 2 25 in Empty weight 480 kg 1 058 lb Gross weight 740 kg 132 lb Powerplant 1 Siemens Halske Sh 12 7 cylinder air cooled radial 93 kW 125 hp Performance Maximum speed 156 km h 97 mph 84 kn Range 600 km 373 mi 324 nmi References editNotes Smith 1971 p 9 a b Smith 1971 p 21 2 Smith 1971 p 141 Bibliography Smith J Richard 1971 Messerschmitt an aircraft album London Ian Allan ISBN 0 7110 0224 X External links edit nbsp Wikimedia Commons has media related to Messerschmitt M 21 Images and unsourced data Unsourced data on M 21a Retrieved from https en wikipedia org w index php title BFW M 21 amp oldid 1067101734, wikipedia, wiki, book, books, library,
