M.Goodall, A.Tagg British Aircraft before the Great War (Schiffer)
Deleted by request of (c)Schiffer Publishing
TEASDALE-BUCKELL vertical lift machine (C. Teasdale-Buckell, RN, HMS Ariadne, Portsmouth and 265 The Strand, London, WC)
This attempt to achieve vertical flight was made in 1910, the machine being built and reported to have lifted off on test.
The design was original and covered by patent No.30143/1909. The machine was a high wing monoplane, with the wing tips curving down to meet members supporting the bearings of the twin propeller shafts, thus forming shrouds extending down to their centerlines. Behind, and on the same centerlines, were a pair of 'helically corrugated cylindrical surfaces' or 'helixplanes', also driven by belts or chains from the same central motor. These cylinders were designed to provide lift from the slipstream impinging on the corrugations, at their outboard sides as they rotated, being driven in opposite directions by the crossed drive.
The pilot sat in the center behind the 30hp motor, which was cooled by a fan; an elevator and tailplane were left as an option to be fitted later if tests indicated the need.
Data
Span 14ft
Area 166 sq. ft
Length 18ft
Helix planes 5ft diameter 6ft long
Corrugations 2ft deep
Weight 500 lb.
Speed 70 mph
P.Lewis British Aircraft 1809-1914 (Putnam)
Teasdale-Buckell Helicopter
The Teasdale-Buckell Helicopter was built during 1910 and was fitted with a 30 h.p. engine. Basically a small high-wing canard monoplane, with vertical panels below the wing-tips and intermediately, it obtained direct lift from a pair of rotating "helix-planes", which comprised inclined helical planes arranged cylindrically and mounted on the propeller shafts. These "helix-planes" were driven by chains from the central engine. The propellers were of special design, based on Sir John Thorneycroft's marine experiments. The machine was claimed to have lifted vertically during tests. Span, 14 ft. Length, 18 ft. Wing area, 166 sq. ft. Estimated maximum speed, 70 m.p.h. Weight empty, 500 lb.
