Inter-Wars

Cairns Development Co / Cairns Aircraft Corp

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USA
Started in late 1928 as the Cairns Development Company; was taken over by Cairns Aircraft Corporation in August 1929. Began to develop advanced-design all-metal low-wing monoplane. First product was the Model A, first flown April 1930; second design evaluated by the U.S. government but most of the 1930s dedicated to development work. Model A built for a new Cairns-designed engine, and in 1938 Models B and C.

Buxton Transporter

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In 1935 Jay Buxton of Hawthorne, California, completed his Transporter powered glider. The engine is a 2 stroke inline, inverted type of unique design. It is a three cylinder, three port engine that weighs 115 lb and develops 35 hp at 2100 rpm.

The motor cabane is completely removed and replaced by a plain cabane when used for gliding.

Wingspan: 52.3 ft
Wing area: 240/255 sq.ft
Aspect ratio: 11.4
Length: 26.6 ft
Empty weight: 435 lb
Gross weight: 725/965 lb
Fuel capacity: 12 USG
Min sink: 2.5 f/sec
Glide ratio: 20-1
Seats: 2

Buxton Hjordis

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A single-seat sailplane designed by G.M. (Mungo) Buxton and built by Slingsby Sailplanes in 1935.

The sole example built was of conventional wooden construction, cantilever wing, with no air brakes or flaps. The undercarriage was main skid and tail skid.

With Slingsby c/n 215C and C of A No BGA242, the first flight was made at Sutton Bank, Yorkshire on 27 May 1935.

It was flown by Phillip Wills in the 1937 International Competitions at the Wasserkuppe, registered G-GAAA.

Later registered as BGA.301.

Sold to South Africa in 1938 where it was registered ZS-23.

The initial layout of the Buxton Hjordis 2 were commenced by Mungo Buxton but it was built as the Slingsby T.9 King Kite. Many of the King Kite drawings were entitled Hjodris 2 (King Kite).

Wingspan: 15.54 m / 51 ft 0 in
Length: 6.58 m / 21 ft 7 in
Wing area: 11.52 sq.m / 124 sq.ft
Aspect ratio: 21
Wing section: Gottingen 652 root / RAF 32 tip
Empty weright: 143.79 kg / 317 lb
AUW: 217.72 kg / 480 lb
Wing loading: 18.94 kg/sq.m / 3.88 lb/sq.ft
Max L/D: 24
Min sink: 0.61 m/sec at 56 kph / 2 ft/sec at 35 mph