Author: William C. SleemanPublisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 72
Book Description
Low-speed Investigation of Cable Tension and Aerodynamic Characteristics of a Parawing and Spacecraft Combination
Author: William C. SleemanPublisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 72
Book Description
Low-speed Investigation of Cable Tension and Aerodynamic Characteristics of a Parawing and Spacecraft Combination
Author: William C. Sleeman (Jr.)Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Low-speed Investigation of Cable Tension and Aerodynamic Characteristics of a Parawing and Spacecraft Combination
Author: William C. SleemanPublisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 0
Book Description
NASA Technical Note
Author: Low-speed Investigation of the Effects of Wing Sweep on the Aerodynamic Characteristics of Parawings Having Equal-length Leading Edges and Keel
Author: Rodger L. NaesethPublisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 88
Book Description
An investigation has been made in the Langley 300-MPH 7- by 10-foot tunnel to determine the aerodynamic characteristics of a related series of parawings in which wing sweep was the primary variable. The leading-edge sweep angles varied from 400 to 750 and the three basic parawings had flat-planform sweep angles of 350, 450, and 550. The canopies of the wings were made of fabric. Tests were made at an airspeed of 38.6 mph and a Reynolds number of approximately 1.5 X 106. The maximum angle-of-attack range was from 140 to 530 for the wings having a canopy of 350 flat-planform sweep. A limited investigation of lateral characteristics was made for sideslip angles from approximately -50 to 160 for two angles of attack, and lateral stability derivatives were obtained for some configurations through a angle-of-attack range. Forces and moments acting on the wing and apex hinge moments were measured.
Effects of Canopy Shape on Low-speed Aerodynamic Characteristics of a 550 Swept Parawing with Large-diameter Leading Edges
Author: Delwin R. CroomPublisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 110
Book Description
A low-speed wind-tunnel investigation was conducted to study effects of wing-canopy shape on the aerodynamic characteristics and spreader-bar load of a 550 swept parawing having large-diameter leading edges and keel. The canopy-flat-pattern sweep angles investigated on the 550 swept wing were 42.50, 450, 47.50, 500, and 52.50. Several other modifications to the canopy shape were also studied, such as removal of single, double, and compound gores from the rear part of each canopy lobe. A study of the effects of wing-leading-edge sweep angle was made between sweep angles of 500 and 600 and effects of leading-edge diameter were obtained at the basic 550 sweep angle. Effects of keel web height were determined for a constant trailing-edge length and also for trailing-edge lengths that varied with web height.
U.S. Government Research Reports
Author: Free-flight and Wind-tunnel Studies of Deployment of a Dynamically and Elastically Scaled Inflatable Parawing Model
Author: Alice T. FerrisPublisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 50
Book Description
The deployment characteristics of a 1/8-size dynamically and elastically scaled model of an inflatable parawing suitable for the recovery of an Apollo-type spacecraft were investigated in free flight and in the Langley transonic dynamics tunnel using a model which was mounted to permit limited angular freedom. The deployments were of a passive type; that is, there was no powered reel-in or reel-out of the suspension lines. However, a braking system was used to attenuate the dynamic loads in the suspension lines. The deployment technique was developed in an initial series of wind-tunnel tests. By utilizing the equipment and technique evolved from the wind-tunnel studies, successful free-flight deployments were accomplished and the transient loads associated with the deployments were measured. These results were compared with the results of subsequent wind-tunnel tests.
Scientific and Technical Aerospace Reports
Author: Monthly Catalog of United States Government Publications, Cumulative Index
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : United States
Languages : en
Pages : 1284
Book Description