An Easy Way to Analyze Longitudinal and Lateral-Directional Trim Problems with AEO or OEI 941143
A user-friendly method for analyzing longitudinal and lateral-directional trim problems for airplanes with all engines operating (AEO) and with one engine inoperative (OEI) is presented. The method allows for rapid evaluation of various critical handling qiality parameters, such as stick-force per ‘g’ and stick-force versus speed gradients. In addtion, the effect of failures in trim systems on cockpit control forces and on control surface and/or tab deflections can be assessed. Also, the method can be used for sizing of tab control systems, down-springs, bob-weights and interconnect springs. Finally, elevator hingemoment derivatives for rather arbitrary aerodynamic balance configurations can be quickly estimated.
Citation: Roskam, J. and Anemaat, W., "An Easy Way to Analyze Longitudinal and Lateral-Directional Trim Problems with AEO or OEI," SAE Technical Paper 941143, 1994, https://doi.org/10.4271/941143. Download Citation
Author(s):
Jan Roskam, William Anemaat
Pages: 15
Event:
Aerospace Atlantic Conference & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Control systems
Springs
Aerodynamics
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »