An Investigation at Transonic Speeds of the Effects of Thickness Ratio and of Thickened Root Sections on the Aerodynamic Characteristics of Wings with 47 Degrees Sweepback, Aspect Ratio 3.5, and Taper Ratio 0.2 in the Slotted Test Section of the Langley 8-foot High-speed Tunnel
An Investigation at Transonic Speeds of the Effects of Thickness Ratio and of Thickened Root Sections on the Aerodynamic Characteristics of Wings with 47 Degrees Sweepback, Aspect Ratio 3.5, and Taper Ratio 0.2 in the Slotted Test Section of the Langley 8-foot High-speed Tunnel

Author: Ralph P. Bielat

Publisher:

Published: 1951

Total Pages: 38

ISBN-13:

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Four wing-body combinations of the same plan form (47 degree sweep, 3.5 aspect ratio, and 0.2 taper ratio) were compared at transonic speeds in the Langley 8-foot high-speed tunnel. Three wings were 4, 6, and 9 percent thick; the fourth was 6 percent thick but, on the inner 0.4 span, tapered to 12-percent thickness at the roots.

Effects of Spanwise Thickness Variation on the Transonic Aerodynamic Characteristics of Wings Having 35 Degrees of Sweepback, Aspect Ratio 4, and Taper Ratio 0.60
Effects of Spanwise Thickness Variation on the Transonic Aerodynamic Characteristics of Wings Having 35 Degrees of Sweepback, Aspect Ratio 4, and Taper Ratio 0.60

Author: William D. Morrison

Publisher:

Published: 1951

Total Pages: 21

ISBN-13:

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An investigation has been conducted in the Langley high-speed 7- by 10-foot tunnel to determine the effects of a spanwise variation in thickness ratio on the aerodynamic characteristics of a wing having a plan form identical to that of a constant-percent thickness-ratio wing previously investigated as part of an extensive transonic research program. The wing with thickness variation had 35 degrees of sweepback, aspect ratio 4, and taper ratio 0.60, with airfoil section (parallel to the free stream) tapered from an NACA 65A006 section at root chord to an NACA 65A002 section at the tip chord. The test Mach number range was from 0.60 to 1.08 at Reynolds numbers of the order 0f 650,000.

Effects of Spanwise Thickness Variation on the Aerodynamic Characteristics of 35 Degree and 45 Degree Sweptback Wings of Aspect Ratio 6
Effects of Spanwise Thickness Variation on the Aerodynamic Characteristics of 35 Degree and 45 Degree Sweptback Wings of Aspect Ratio 6

Author: William D. Morrison

Publisher:

Published: 1951

Total Pages: 38

ISBN-13:

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An aerodynamic investigation has been conducted in the Langley high-speed 7- by 10-foot tunnel to determine the effects of taper-in-thickness on the aerodynamics characteristics of wings having 35 and 45 degrees of sweep-back, aspect ratio 6, and taper ratio 0.60. The wings were tapered from NACA 65A009 airfoil sections at the root chord to NACA 65A003 airfoil sections at the tip chord. The test Mach number range was from 0.60 to 1.14 at a Reynolds number of the order of 500,000.

Effect of an End Plate on the Aerodynamic Characteristics of a 20.55 Degree Sweptback Wing with an Aspect Ratio of 2.67 and a Taper Ratio of 0.5
Effect of an End Plate on the Aerodynamic Characteristics of a 20.55 Degree Sweptback Wing with an Aspect Ratio of 2.67 and a Taper Ratio of 0.5

Author: James M. Watson

Publisher:

Published: 1950

Total Pages: 15

ISBN-13:

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An investigation by the transonic-bump method conducted in the Langley high-speed 7- by 10-foot tunnel to determine the effect of an end plate on the aerodynamic characteristics of a 20.55 degree sweptback wing with an aspect ratio of 2.67 and a taper ratio of 0.5 indicated that the end plate affect the aerodynamic characteristics of the wing at transonic Mach numbers in the same manner as has been observed for swept and unswept wings at low speeds.