Description of a four degrees of freedom V/Stol aircraft, airborne simulator

A variabie stability helicopter capable of altering its characteristics in the three rotational dcgrees of freedom as weil as the heave or vertical degree of freedom has been developed and utilized on a variety of V/STOL handling qualities research programs. This Report describes the simulator systems and outlines its capabilities.

A flight investigation of the effects of weathercock stability on V/Stol aircraft directional handling qualities

An investigation into the effects of various levels of weathercock stability on directional bandling qualities boundaries. defined in terms of angular rate damping versus control sensitivity. was undertaken using a V/STOL air borne simulator. The visual flight task performed by the pilots included hovering turns. in the presence of a sirnulated...

A model-controlled autopilot for an airborne VTOL simulator

To establish valid handling qualities requirements for VTOL and STOL aircraft a need exists for a simulator which adequately simulate s the dynamic response and environment of the vehicle under consideration. To this end a variable stability helicopter is proposed. This report outlines how a model-controlled autopilot may be used to vary the...

Turbojet thrust augmentation: Flight test results for a reheat system employing fuel injection upstream of a two-stage turbine

Flight experiments on a reheat system, in which part of the reheat fuel was injected upstream of a two-stage turbine, are described. The system was fitted to an Orenda 14 engine installed in a Sabre 6 aircraft. The reheat system was stable over the range of conditions explored, and operated satisfactorily at the ceiling of the aircraft with a...