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Effects of the spanwise, chordwise and vertical location of an external store on the aerodynamic characteristics of a 60 degree delta wing at Mach numbers of 1.41, 1.62, and 1.96

Description: Report presenting an investigation in the supersonic blowdown tunnel to determine the effects of external store location on the lift, drag, and pitching-moment characteristics of a 60 degree delta wing at Mach numbers of 1.41, 1.62, and 1.96. Brief comparative tests were also made to determine the effect of changing the sweep of the strut attaching the store to the wing and of changing the chordwise location of the swept strut.
Date: October 27, 1952
Creator: Jacobsen, Carl R.
Partner: UNT Libraries Government Documents Department

Effect on Drag of Longitudinal Positioning of Half-Submerged and Pylon-Mounted Douglas Aircraft Stores on a Fuselage with and without Cavities between Mach Numbers 0.9 and 1.8

Description: From Summary: "The effect on drag of positioning symmetrically mounted Douglas Aircraft Company, Inc. stores in pairs on a parabolic fuselage of fineness ratio 10.0 has been determined by flight tests of rocket-propelled, zero-lift models through a range of Mach number from 0.9 to 1.8. The stores were mounted in half-submerged positions and on pylons and were tested in three longitudinal locations on the fuselage with the forward position being located at the maximum diameter of the fuselage. The effects on drag of removing the half-submerged stores or extending them outward on pylons also was investigated by tests of models with half-submerged-store cavities on the fuselage. Two pylons differing in airfoil section and thickness were tested at the forward position of the stores on the fuselage with cavities."
Date: July 15, 1954
Creator: Hoffman, Sherwood & Wolff, Austin L.
Partner: UNT Libraries Government Documents Department

Correlation of wind-tunnel and flight determinations of the buffet speed of an airplane equipped with external stores

Description: Tests were made in the Langley 7 by 10 foot tunnel on a model of a fighter-type airplane with external stores. The data obtained is presented and compared to flight-test results to determine the feasibility of estimating flight buffet Mach number from tunnel data.
Date: March 2, 1948
Creator: Silvers, H. Norman & Spreemann, Kenneth P.
Partner: UNT Libraries Government Documents Department

A small-scale investigation of the effect of spanwise and chordwise positioning of an ogive-cylinder underwing nacelle on the high-speed aerodynamic characteristics of a 45 degree sweptback tapered-in-thickness wing of aspect ratio 6

Description: Report presenting an investigation of a nacelle in three chordwise locations at each of four spanwise locations in an underwing position on a small-size semi-span model of a wing sweptback 45 degrees and tapered in thickness from 9 percent at the root to 3 percent at the tip. Results regarding drag characteristics, lift-drag ratios, lift characteristics, pitching moment characteristics, and lateral center of pressure are provided.
Date: December 18, 1952
Creator: Silvers, H. Norman & King, Thomas J., Jr.
Partner: UNT Libraries Government Documents Department

The origin and distribution of supersonic interference from measurement of individual forces on several wing-fuselage-store configurations 6: swept-wing heavy-bomber configuration with stores of different sizes and shapes

Description: Report presenting a supersonic wind-tunnel investigation of the origin and distribution of store interference in the 4- by 4-foot supersonic pressure tunnel at Mach number 1.61. The separate forces on a store, a fuselage, a swept wing, and a swept-wing-fuselage combination were measured. Results regarding drag, lift, pitching moment, side force, and yawing moment are provided.
Date: March 8, 1956
Creator: Smith, Norman F.
Partner: UNT Libraries Government Documents Department

The origin and distribution of supersonic store interference from measurement of individual forces on several wing-fuselage-store configurations 3: swept-wing fighter-bomber configuration with large and small stores. Mach number 1.61

Description: Report presenting a supersonic wind-tunnel investigation of the origin and distribution of store interference in the 4- by 4-foot supersonic pressure tunnel at Mach number 1.61. Separate forces on a store, a swept wing, and a swept-wing-fuselage combination were measured. This report presents data on a configuration that simulated a fighter-bomber airplane with a large and a small external store.
Date: September 15, 1955
Creator: Smith, Norman F. & Carlson, Harry W.
Partner: UNT Libraries Government Documents Department

Investigation of the effects of geometric changes in an underwing pylon suspended external store installation on the aerodynamic characteristics of a 45 degree sweptback wing at high subsonic speeds

Description: Report presenting an investigation in the high-speed 7- by 10-foot tunnel through a range of Mach numbers to determine the effects of external-store fineness ratio, store shape, store chordwise position, pylon thickness, pylon length, and pylon sweep angle on the aerodynamic characteristics of a number of underwing pylon-suspended external stores in combination with a 45 degree sweptback semispan wing and fuselage.
Date: March 5, 1951
Creator: Spreemann, Kenneth P. & Alford, William J., Jr.
Partner: UNT Libraries Government Documents Department

An investigation of supersonic store interference in the vicinity of a 22 degree swept-wing-fuselage configuration at Mach numbers of 1.61 and 2.01

Description: Report presenting an investigation in the supersonic pressure tunnel at Mach numbers 1.61 and 2.01 in which separate forces and moments were measured on a store (with five components), on a 22 degree swept wing (three components), and on a 22 degree swept-wing-fuselage combination (three components) for a range of store positions.
Date: February 24, 1958
Creator: Geier, Douglas J.
Partner: UNT Libraries Government Documents Department

The origin and distribution of supersonic store interference from measurement of individual forces on several wing-fuselage-store configurations 5: swept-wing heavy-bomber configuration with large store (nacelle). Mach number 2.01

Description: Report presenting an investigation of store interference in the supersonic pressure tunnel at Mach number 2.01 in which separate forces on a store and a swept-wing-fuselage combination were measured. The interference effects measured at that Mach number were similar to those reported previously at Mach number 1.61. Results regarding store drag, store lift, store side force, store pitching moment and yawing moment, wing-fuselage drag, wing-fuselage lift, total drag, total lift, and wing-fuselage flow field are provided.
Date: February 13, 1956
Creator: Carson, Harry W. & Geier, Douglas J.
Partner: UNT Libraries Government Documents Department

Wind-tunnel investigation of mutual interference loads on a supersonic bomber configuration and store during separation at Mach numbers of 1.57, 1.77, and 2.01

Description: Report discussing an investigation into the mutual interference loads on a supersonic bomber configuration and store during separation of the store. Tests were performed at several airplane angles of attack, store angles of attack, and airplane sidestep angles. The aerodynamic characteristics of the various components and coefficients of forces are provided in tables.
Date: October 25, 1957
Creator: Morris, Owen G. & Turner, Kenneth L.
Partner: UNT Libraries Government Documents Department

Investigation at high subsonic speeds of finned and unfinned bodies mounted at various locations from the wings of unswept- and swept-wing--fuselage models, including measurements of body loads

Description: Report presenting an investigation to determine the effects of location of bodies (finned and unfinned) on the aerodynamic characteristics of unswept- and swept-wing--fuselage models and to determine the aerodynamic loads on the bodies in the presence of the wings. Results for the complete model characteristics and for the body are provided.
Date: April 1, 1954
Creator: Alford, William J., Jr. & Silvers, H. Norman
Partner: UNT Libraries Government Documents Department

Investigation at high subsonic speeds of the effect of adding various combinations of missiles on the aerodynamic characteristics of sweptback and unswept wings combined with a fuselage

Description: Report presenting an investigation at Mach numbers from 0.50 to 0.94 of the effects of two sizes of missiles in several combinations of spanwise and vertical positions on the aerodynamic characteristics of wing-fuselage combinations with a 46.7 degree sweptback wing and an essentially unswept wing. Results regarding the drag characteristics and lift and pitch characteristics are provided.
Date: June 24, 1954
Creator: Silvers, H. Norman & Alford, William J., Jr.
Partner: UNT Libraries Government Documents Department

Investigation at high subsonic speeds of bodies mounted from the wing of an unswept-wing-fuselage model, including measurements of body loads

Description: Report presenting an investigation with the dual purpose of determining the effect of two bodies in various positions, symmetrically located from the plane of symmetry, on the aerodynamic characteristics of a wing-fuselage model and determining the aerodynamic loads on one of two bodies. Some of the most significant effects were obtained for the direct-mounted tip bodies which gave a large increase in the lift-curve slope of the basic model.
Date: November 14, 1952
Creator: Silvers, H. Norman & King, Thomas J., Jr.
Partner: UNT Libraries Government Documents Department

Effects of external stores on the static longitudinal aerodynamic characteristics of a model of a 45 degree swept-wing fighter airplane at Mach numbers of 1.61 and 2.01

Description: Report presenting an investigation in the 4- by 4-foot supersonic pressure tunnel to determine the effects of various external-store configurations on the longitudinal and lateral aerodynamic characteristics of a model of a 45 degree swept-wing fighter airplane. Results regarding accuracy and remarks on effects of stores are provided.
Date: August 23, 1956
Creator: Foster, Gerald V. & Driver, Cornelius
Partner: UNT Libraries Government Documents Department

Estimation of Pressures on Cockpit Canopies, Gun Turrets, Blisters, and Similar Protuberances

Description: Report presenting methods for estimating pressure distributions over protuberances such as cockpit canopies, gun turrets, blisters, scoops, and sighting domes. The methods are applied to the estimation of the pressure distributions over spherical segment and faired gun turrets and over the protuberances on the Brewster SB2A-1 airplane. The effects of compressibility, interference, and flow separation are discussed.
Date: May 1944
Creator: Wright, Ray H.
Partner: UNT Libraries Government Documents Department

Investigation of Ejection Release Characteristics of Bluff TX-28 and Turnabout TX-28 Stores From a 1/17-Scale Simulated Bomb Bay of the Republic F-105 Airplane at Mach Numbers of 1.39 and 1.98 : Coord. No. AF-222

Description: Memorandum presenting a study of two bluff modifications of the TX-28 store in the 27- by 27-inch preflight jet of the Langley Pilotless Aircraft Research Station. Successful releases were made with both stores at near-sea-level conditions with high ejection velocities. Results regarding the Bluff TX-28 and Turnabout TX-28 are provided.
Date: February 5, 1957
Creator: Lee, John B.
Partner: UNT Libraries Government Documents Department

Effect of Variations in Reynolds Number on the Aerodynamic Characteristics of Three Bomb or Store Shapes at a Mach Number of 1.62 With and Without Fins

Description: Memorandum presenting tests in the 9-inch supersonic tunnel of three bomb or store shapes without fins and with two sets of cruciform fins. Measurements of normal force, chord force, and pitching moment were made; analyses of the effects of angle of attack and Reynolds number on these qualities and also upon center-of-pressure position and fin effectiveness are presented.
Date: June 25, 1953
Creator: Rainey, Robert W.
Partner: UNT Libraries Government Documents Department

Effects of External Store Mounting on the Buffet, Trim, and Drag Characteristics of Rocket-Powered Fuselage and Store Combinations Between Mach Numbers of 0.7 and 1.4

Description: Memorandum presenting an investigation made of the effects of store mounting on the buffet, trim, and drag characteristics of fuselage-mounted external stores between Mach numbers of 0.7 and 1.4 by the use of the rocket-propelled-model technique. Results of the tests are presented in the incremental accelerations in the stores due to buffeting, trim normal- and side-force coefficients, tail helix angles, and drag coefficients plotted against Mach number.
Date: December 10, 1953
Creator: Mason, Homer P.
Partner: UNT Libraries Government Documents Department

Effects of Wing-Mounted Tank-Type Stores on the Low Lift Buffeting and Drag of a Swept-Wing Airplane Configuration Between Mach Numbers of 0.8 and 1.3

Description: Memorandum presenting tests of two rocket-powered models of a 45 degree swept-wing airplane configuration with different underwing fuel-tank installations located at approximately half the wing semispan. Results of the tests were compared with previously reported data from a similar configuration with no tanks and with isolated tank data. These results include trim, buffeting, drag, and static longitudinal stability are provided.
Date: October 6, 1955
Creator: Mason, Homer P.
Partner: UNT Libraries Government Documents Department

The Origin and Distribution of Supersonic Store Interference From Measurement of Individual Forces on Several Wing-Fuselagestore Configurations 1. - Swept-Wing Heavy-Bomber Configuration With Large Store (Nacelle). Lift and Drag; Mach Number, 1.61

Description: Memorandum presenting a supersonic wind-tunnel investigation of the origin and distribution of store interference in the 4- by 4-foot supersonic pressure tunnel at Mach number 1.6 in which separate forces on a store, a fuselage, a swept wing, and a swept-wing-fuselage combination were measured. The store was separately sting-mounted on its own six-component internal balance and was traversed through a wide systematic range of spanwise, chordwise, and vertical positions.
Date: March 11, 1955
Creator: Smith, Norman F. & Carlson, Harry W.
Partner: UNT Libraries Government Documents Department

The Origin and Distribution of Supersonic Store Interference From Measurement of Individual Forces on Several Wing-Fuselage-Store Configurations 3 - Swept-Wing Fighter-Bomber Configuration With Large and Small Stores. Mach Number, 1.61

Description: Memorandum presenting a supersonic wind-tunnel investigation of the origin and distribution of store interference in the 4- by 4-foot supersonic pressure tunnel at a Mach number of 1.61 in which separate forces on a store, a fuselage, a swept wing, and a swept-wing-fuselage combination were measured. The report presents data on a configuration which simulated a fighter-bomber airplane with a large and a small external store.
Date: September 15, 1955
Creator: Smith, Norman F. & Carlson, Harry W.
Partner: UNT Libraries Government Documents Department

The Origin and Distribution of Supsonic Store Interference From Measurement of Individual Forces on Several Wing-Fuselage-Store Configurations 5 - Swept-Wing Heavy-Bomber Configuration With Large Store (Nacelle). Mach Number, 2.01

Description: Memorandum presenting a supersonic wind-tunnel investigation of store interference performed in the 4- by 4-foot supersonic pressure tunnel at a Mach number of 2.01 in which separate forces on a store and a swept-wing-fuselage combination were measured. The report presents data on a configuration which simulated a heavy-bomber airplane with a large external store.
Date: February 13, 1956
Creator: Carlson, Harry W. & Geier, Douglas J.
Partner: UNT Libraries Government Documents Department

The Origin and Distribution of Supersonic Store Interference From Measurement of Individual Forces on Several Wing-Fuselage-Store Configurations 4. - Delta-Wing Heavy-Bomber Configuration With Large Store. Mach Number, 1.61

Description: Memorandum presenting a supersonic wind-tunnel investigation of the origin and distribution of store interference performed in the 4- by 4-foot supersonic pressure tunnel at a Mach number of 1.6 in which separate forces on a store and on a 60 degree delta-wing-fuselage combination were measured. The configuration in this report simulates a heavy-bomber delta-wing airplane and has a large external symmetrical store that represents a nacelle with a frontal area equivalent to a twin-engine nacelle.
Date: December 15, 1955
Creator: Morris, Odell A.
Partner: UNT Libraries Government Documents Department

The Origin and Distribution of Supersonic Store Interference From Measurement of Individual Forces on Several Wing-Fuselagestore Configurations 6. - Swept-Wing Heavy-Bomber Configuration With Stores of Different Sizes and Shapes

Description: Memorandum presenting a supersonic wind-tunnel investigation of the origin and distribution of store interference performed in the 4- by 4-foot supersonic pressure tunnel at Mach number 1.61 in which separate forces on a store, a fuselage, a swept wing, and a swept-wing-fuselage combination were measured. The report presents data on a configuration which simulated a heavy-bomber airplane with stores of several shapes and sizes.
Date: March 8, 1956
Creator: Smith, Norman F.
Partner: UNT Libraries Government Documents Department