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Aviation History
1948
1948 - 0018.PDF
FLIGHT JANUARY IST, T04S GENERAL AIRCRAF7 RESEARCH GLIDERS Principal Features of "Medium V," i(Medium U" and "Maximum V" DesignsT O the student of aerodynamic design one of the most absorbing exhibits at Radlett this year was the " flight" of three experimental towed gliders, all tailless, but having wings of differing plan- forms. These instruments of research have been built by General Aircraft Ltd.. of Feltham, Middlesex, as part of a Ministry of Supply programme. One—known as the "medium U"—was demonstrated by Mr. R. Kronfeld, after being towed off by a Halifax. On this page are general arrangement drawings of the three gliders. The "medium V" type has a 28.4 degree sweepback, measures 45ft 4m in span, is 19ft long and 8ft 9m high and is numbered TS507A. It is a normal glider and was described in some detail in Flight of Sep- tember 26th, 1946. The " medium U " has the same degree of sweepback, is numbered TS510D and has rotatable,, wing tips. Span length and height are respectively 51ft, 21ft and 10ft. A nose flap arrangement is incorporated' In the heading picture the "medium U" is seen from the towing Halifax. A general - arrangement drawing of this version also appears above. The angle from which the " maximum V " is. seen on the left a true impressi, the sweep-back, version, which has a span of 45ft Ain, incor- porates a nose flap arrangement. in the "maximum V" (TS513B), the corresponding dimensions of which are 45ft 4in, 23ft 6in and gft. Other data for the "medium V" are: — Wing area (net).. 317 sq ft Wing area (gross) 350 sq 5 ' ft Eaf 34 modified 11ft 4m 43.58m 0.5 deg Direct comparison is afforded by the G.A. drawings of the "medium V" and "max/mum V" gliders Aspect ratio Aerofoil section. . Chord—root .... Chord—tip .... Dihedral—normal Flying weight with two crew + max ballast 4,400 lb Max wing loading 12.57 lb/sq ft Stalling speed .. 58 m.p.h. E.A.S. Max towing speed 150 m.p.h. E.A.S.
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