The Stinson Junior was a high-winged American monoplane of the late 1920s, built for private owners, and was one of the first such designs to feature a fully enclosed cabin.
Stinson Junior
Stinson SM-2 Junior of 1928 at the Sun N'Fun show, Lakeland, Florida in April 2007
Stinson Aircraft had introduced their large high-winged six-seat SM-1 Detroiter in 1927.[1] The SM-1 was sold successfully to airlines and other commercial operators, but it was too large to appeal to private owners.
Stinson therefore redesigned the aircraft with shorter span wings, shorter fuselage and a choice of less powerful engines as the SM-2 Junior. The aircraft was a strut-braced high-wing monoplane with a sturdy outrigger undercarriage which was braced against the wing support struts and the initial 110 h.p. Warner Scarab engine was normally left uncowled. The first SM-2 flew in mid-1928 and deliveries commenced that year. Later versions of the SM-2 had higher-powered engines of between 165 h.p. and 225 h.p.[2]
The design was further developed to produce the more powerful and heavier SM-7 and SM-8 models which were full four-seaters and these were also used by commercial firms. The Junior R of 1932 had a deeper fuselage and a low-set stub wing to mount the undercarriage and wing struts.
Operational historyEdit
The various Stinson Junior models were in production between 1928 and 1933, being bought by both wealthy private flyers and commercial enterprises. A total of 321 Juniors were built, of which 27 survived in 2001 and several of these were airworthy in private hands.[3] In 1977, the Experimental Aircraft Association painted an SM-8A "Spirit of EAA", and flew a cross-country tour as the support plane with a "spirit of St. Louis" replica as part of the 50th anniversary of Lindbergh's Trans-Atlantic crossing.[4]
Green, William (1965). The Aircraft of the World. Macdonald & Co (Publishers) Ltd.
Simpson, Rod (2001). Airlife's World Aircraft. Airlife Publishing Ltd. ISBN1-84037-115-3.
External linksEdit
Wikimedia Commons has media related to Stinson Junior.
aerofiles
Stinson "S" Junior, NC-10888
August 25, 2023
stinson, junior, high, winged, american, monoplane, late, 1920s, built, private, owners, first, such, designs, feature, fully, enclosed, cabin, stinson, junior, 1928, show, lakeland, florida, april, 2007role, three, four, seat, private, civil, aircraftnational. The Stinson Junior was a high winged American monoplane of the late 1920s built for private owners and was one of the first such designs to feature a fully enclosed cabin Stinson JuniorStinson SM 2 Junior of 1928 at the Sun N Fun show Lakeland Florida in April 2007Role three four seat private civil aircraftNational origin United StatesManufacturer Stinson Aircraft CompanyFirst flight 1928Status some were still flying in the USA during 2018Primary user private ownersNumber built 321Developed from Stinson Detroiter Contents 1 Design and development 2 Operational history 3 Variants 4 Specifications SM 2AC 5 References 6 External linksDesign and development EditStinson Aircraft had introduced their large high winged six seat SM 1 Detroiter in 1927 1 The SM 1 was sold successfully to airlines and other commercial operators but it was too large to appeal to private owners Stinson therefore redesigned the aircraft with shorter span wings shorter fuselage and a choice of less powerful engines as the SM 2 Junior The aircraft was a strut braced high wing monoplane with a sturdy outrigger undercarriage which was braced against the wing support struts and the initial 110 h p Warner Scarab engine was normally left uncowled The first SM 2 flew in mid 1928 and deliveries commenced that year Later versions of the SM 2 had higher powered engines of between 165 h p and 225 h p 2 The design was further developed to produce the more powerful and heavier SM 7 and SM 8 models which were full four seaters and these were also used by commercial firms The Junior R of 1932 had a deeper fuselage and a low set stub wing to mount the undercarriage and wing struts Operational history EditThe various Stinson Junior models were in production between 1928 and 1933 being bought by both wealthy private flyers and commercial enterprises A total of 321 Juniors were built of which 27 survived in 2001 and several of these were airworthy in private hands 3 In 1977 the Experimental Aircraft Association painted an SM 8A Spirit of EAA and flew a cross country tour as the support plane with a spirit of St Louis replica as part of the 50th anniversary of Lindbergh s Trans Atlantic crossing 4 Variants Edit per Simpson 2001 pp 523 524 SM 2 Warner Scarab 110 h p SM 2AA Wright J6 5 165 h p SM 2AB Wright J5 220 h p SM 2AC Wright J6 7 225 h p SM 2ACS floatplane version of the SM 2AC SM 7A Wright J6 9 300 h p SM 7B Wasp Junior 300 h p SM 8A Lycoming R 680 215 h p SM 8B Wright J6 7 225 h p SM 8D Packard DR 980 diesel 225 h p Junior R Lycoming R 680 215 h p and deeper fuselage 28 Units built Junior R 2 Lycomong R 680 BA 240 h p 3 Built Junior R 3 as R 2 with retractable undercarriage 3 Units built 5 Junior R 3 S Lycoming R 680 6 245 h p Junior S Lycoming R 680 215 h p with fully cowled engine Junior W generally similar to the SM 7B powered by a Wasp Junior engineSpecifications SM 2AC EditData from lt Green 1965 p 298 gt General characteristicsCrew 1 Capacity 3 passengers Length 29 ft 0 in 8 84 m Wingspan 41 ft 8 in 12 70 m Height 8 ft 3 in 2 51 m Wing area 236 sq ft 21 9 m2 Empty weight 2 169 lb 984 kg Gross weight 3 229 lb 1 465 kg Powerplant 1 Wright Whirlwind J6 7 nine cylinder radial air cooled 225 hp 168 kW Performance Maximum speed 135 mph 217 km h 117 kn Cruise speed 113 mph 182 km h 98 kn Range 450 mi 720 km 390 nmi Service ceiling 22 000 ft 6 700 m Rate of climb 1 200 ft min 6 1 m s References EditNotes Green 1965 p 298 Simpson 2001 p 523 Simpson 2001 p 524 Flight International 20 August 1977 a href Template Cite journal html title Template Cite journal cite journal a Missing or empty title help More on the Stinson R Skyways July 1999 BibliographyGreen William 1965 The Aircraft of the World Macdonald amp Co Publishers Ltd Simpson Rod 2001 Airlife s World Aircraft Airlife Publishing Ltd ISBN 1 84037 115 3 External links Edit Wikimedia Commons has media related to Stinson Junior aerofiles Stinson S Junior NC 10888 Retrieved from https en wikipedia org w index php title Stinson Junior amp oldid 1037316017, wikipedia, wiki, book, books, library,
