H. Müller

Since June of this year two prototypes of MBBs new light-twin helicopter, the BO 108, are flying and providing successful test results. Both aircrafts are equipped with a stimulation device for main rotor control inputs. Many kinds of collective or cyclic inputs can be chosen in a computer menu. It is possible to select the longitudinal and lateral signals separately or in combination. Each input is of an accuracy which no pilot can offer. Thus, a better response analysis can be done if the helicopters motion is also measured. The different components of the stimulation system and their functions and performance are pescribed. Examples of ground and flight testing are presented for various subjects like ground and air resonance, flight mechanical control response and engine characteristics. For comparison, diagrams of former helicopter testing with manual control inputs are shown and discussed. Currently, the BO 108 is investigating the new "STIMULI"-functions SAS-mode and ATT-hold for both pitch and roll axis. These additional functions are intended to eliminate cross coupling effects and to reduce time required and pilots workload for flight test. Last but not least a further function, the on-board data monitoring in text or graphical mode is also in operation.

17th European Rotorcraft Forum 1991, Berlin

Conference Paper

englisch

21,0 x 29,7 cm, 9 Seiten

DGLR-Bericht, 1991, 1991-08, 17th European Rotorcraft Forum Proceedings; 1991; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

Dieser Aufsatz ist nicht Teil der Veröffentlichung!

bo 105 helicopter, control systems design, helicopters

Bestellbar

1991