NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Stability and control of VTOL capable airships in hovering flightThe stability and control characteristics of an airship equipped with lifting rotors to provide a modest VTOL capability are discussed. The rotors are used for control and maneuvering in near-hovering flight. Configurations with two, three, and four lifting rotors are examined and compared with respect to control capabilities and dynamic response characteristics. Linearized models of the dynamics are employed for this study. A new approach to the prediction of rotor derivatives for operation near zero thrust in hover is presented. It is found that all three configurations have similar control and response characteristics. The responses are characterized by long time constants and low levels of angular damping.
Document ID
19860029498
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Curtiss, H. C., Jr.
(Princeton University NJ, United States)
Sumantran, V.
(Princeton Univ. NJ, United States)
Date Acquired
August 12, 2013
Publication Date
December 1, 1985
Publication Information
Publication: Journal of Guidance, Control, and Dynamics
Volume: 8
ISSN: 0731-5090
Subject Category
Aircraft Stability And Control
Accession Number
86A14236
Funding Number(s)
CONTRACT_GRANT: NAG2-98
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available