Author: Kalman J. Grunwald
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 142
Book Description
Aerodynamic Characteristics of a Four-propeller Tilt-wing VTOL Model with Twin Vertical Tails, Including Effects of Ground Proximity
Aerodynamic Characteristics of a Four-propeller Tilt-wing Vtol Model with Twin Vertical Tails, Including Effects of Ground Proximity
Author: Kalman J. Grunwald
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
Book Description
A wind-tunnel investigation was made of the aerodynamic stability, control, and performance characteristics of a model of a four-propeller tiltwing VTOL airplane employing flaps and speed brakes through the transition speed range. The wing was stalled for steady level flight for all conditions of the investigation; however, the flapped configuration did produce a higher maximum lift. The wing stall resulted in an appreciable reduction of aileron effectiveness during the transition. Out of ground effect the low horizontal tail did not appear to be in an adverse flow field as had been expected and showed no erratic changes in effectiveness; however, in ground effect a large nose-down moment was experienced by the model. It is concluded that the configuration is directionally stable and possesses positive dihedral effect throughout the transition, and the data show no signs of erratic flow at the vertical tails. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
Book Description
A wind-tunnel investigation was made of the aerodynamic stability, control, and performance characteristics of a model of a four-propeller tiltwing VTOL airplane employing flaps and speed brakes through the transition speed range. The wing was stalled for steady level flight for all conditions of the investigation; however, the flapped configuration did produce a higher maximum lift. The wing stall resulted in an appreciable reduction of aileron effectiveness during the transition. Out of ground effect the low horizontal tail did not appear to be in an adverse flow field as had been expected and showed no erratic changes in effectiveness; however, in ground effect a large nose-down moment was experienced by the model. It is concluded that the configuration is directionally stable and possesses positive dihedral effect throughout the transition, and the data show no signs of erratic flow at the vertical tails. (Author).
NASA Technical Note
Effect of Ground Proximity on the Longitudinal, Lateral, and Control Aerodynamic Characteristics of a Tilt-wing Four-propeller V/STOL Model
Author: Kenneth W. Goodson
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 114
Book Description
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 114
Book Description
Monthly Catalog of United States Government Publications, Cumulative Index
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1250
Book Description
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1250
Book Description
Applied Mechanics Reviews
Index of N A S A Technical Publications
Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category :
Languages : en
Pages : 448
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 448
Book Description
Index to NASA Technical Publications
Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A Selected Listing of NASA Scientific and Technical Reports for ...
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1878
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1878
Book Description