The wing of the Tern is seen under construction at York. The deep cantilever wing section with its Warren girder internal bracing and ply-covered leading edge “D”-box gave the structure exceptionally good torsional strength.
THE "TERN": A new sailplane which has been designed and built by Airspeed, Ltd., of York. It is stressed for auto and aeroplane towing, the latter at 70 m.p.h. A detachable undercarriage is fitted for auto-towing. This view of the Tern airborne at Scarborough shows the detachable undercarriage which made auto-towing easier.
The convincing “flying" shot of the Tern model, above, is made more so by the inclusion of a scale pilot in the cockpit. Below the builder of the model, Peter Tiltman, gives us a plan view which is reminiscent of the de Havilland D.H.88 Comet.