The Application of Geodetic Construction to Helicopter Airframes

The concept of geodetic construction, where shear loads in a structure are carried over curved surfaces by means of many intersecting geodesic load paths, is described. An analysis technique, developed at WHL, is used to demonstrate the potential benefits of geodetic construction, by designing a weight efficient, battle damage tolerant structure. Manufacturing methods for fibre-reinforced plastic geodetic structures are examined. Filament winding techniques are suggested as a cost-effective route for the production of geodetic structures.