Alltrikes

Trikes don't have tails..or tail surface controls..!

Tumbling can occur (end over end) whilst flying a microlight, if the aircraft is flown beyond the flight envelope or possibly during flight in very extreme atmospheric conditions ie. rotor turbulance, mountain wave air or similar.

The German DULV Pitch Truck, is a robust vehicle designed with a purpose to examine the aerodynamic pitch stability of delta wings.

The DULV Pitch Tests allow certain trike manufacturers to quantify & confirm the coefficient of lift characteristics of their wing design by computor analysis, whilst hydraulically changing the angle of attack at given speeds for a true result. The wings are also driven backward a slow speed to replicate inverted flight recovery ability of the wing. To achieve the accreditation of the DULV Certification for a constructors wing is absolute recognition of safety for flight.

Additionally, static structural load tests are conducted to determine weight limitations and other factors to a particular wing design.