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NASA rotor systems research aircraft: Fixed-wing configuration flight-test resultsThe fixed-wing, airplane configuration flight-test results of the Rotor System Research Aircraft (RSRA), NASA 740, at Ames/Dryden Flight Research Center are documented. Fourteen taxi and flight tests were performed from December 1983 to October 1984. This was the first time the RSRA was flown with the main rotor removed; the tail rotor was installed. These tests confirmed that the RSRA is operable as a fixed-wing aircraft. Data were obtained for various takeoff and landing distances, control sensitivity, trim and dynamics stability characteristics, performance rotor-hub drag, and acoustics signature. Stability data were obtained with the rotor hub both installed and removed. The speed envelope was developed to 261 knots true airspeed (KTAS), 226 knots calibrated airspeed (KCAS) at 10,000 ft density altitude. The airplane was configured at 5 deg. wing incidence with 5 deg. wing flaps as a normal configuration. Level-flight data were acquired at 167 KCAS for wing incidence from 0 to 10 deg. Step inputs and doublet inputs of various magnitudes were utilized to acquire dynamic stability and control sensitivity data. Sine-wave inputs of constantly increasing frequency were used to generate parameter identification data. The maximum load factor attained was 2.34 g at 206 KCAS.
Document ID
19870003124
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Erickson, R. E. (NASA Ames Research Center Moffett Field, CA, United States)
Cross, J. L. (NASA Ames Research Center Moffett Field, CA, United States)
Kufeld, R. M. (NASA Ames Research Center Moffett Field, CA, United States)
Acree, C. W. (NASA Ames Research Center Moffett Field, CA, United States)
Nguyen, D. (NASA Ames Research Center Moffett Field, CA, United States)
Hodge, R. W. (Sikorsky Aircraft Stratford, Conn., United States)
Date Acquired
September 5, 2013
Publication Date
February 1, 1986
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
NASA-TM-86789
A-85363
NAS 1.15:86789
Accession Number
87N12557
Funding Number(s)
PROJECT: RTOP 505-42-51
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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