P.Lewis British Aircraft 1809-1914 (Putnam)
Barnwell Brothers Glider
The Barnwell Brothers Glider was built by F. S. and R. H. Barnwell.
Barnwell Brothers Light Biplane
Built by the brothers Frank S. and Richard H. Barnwell during 1908, their single-seat light-weight pusher biplane was powered by the 7 h.p. Peugeot engine but was unable to fly, and the design was abandoned.
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M.Goodall, A.Tagg British Aircraft before the Great War (Schiffer)
Deleted by request of (c)Schiffer Publishing
BARNWELL Bros, aircraft (Frank Sowter Barnwell and Richard Harold Barnwell. Grampian Motor & Engineering Co., Causewayhead, Stirling, Scotland)
The brothers were members of the Scottish Aeronautical Society, but ran the Grampian Company after training in shipbuilding. Between them they were responsible for the construction of six machines, before they moved on to appointments with other aviation concerns. Their first types were biplane gliders, of which little is recorded. It is believed that two were built from 1905 at Balfron, their parent's home.
BARNWELL Bros, biplane
This lightly built biplane was a single seater pusher powered by a 7hp Peugeot engine. It did not fly when tested in 1908 at Cornton Farm, Causewayhead.
BARNWELL Bros, monoplane
Frank went to America in 1907 and met the Wright brothers and, upon returning, started the construction of a monoplane. Harold designed the engine. The wing spars were made of bamboo and the wing ribs were in pockets in the covering of light sail canvas. The undercarriage had four main wheels and a tailskid. The machine was completed in December 1908 and reached 25 mph on the ground but would not lift off.
Power: 40hp Grampian two-cylinder horizontally opposed air-cooled vee.
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