Browning .30-caliber Machine Guns

Browning .30-caliber Machine Guns PDF

Author: Gordon L. Rottman

Publisher: Bloomsbury Publishing

Published: 2014-02-20

Total Pages: 81

ISBN-13: 1472808037

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First adopted in 1917, the rugged and reliable Browning .30-caliber machine gun remained in US service into the Vietnam era, and is still occasionally found in use elsewhere even today. Produced in both water-cooled and air-cooled versions, it has been employed in every imaginable role for a machine gun – antipersonnel, antiaircraft, mounted on aircraft as both defensive and offensive armament, defensive armament aboard vehicles (armored and soft-skin), mounted on watercraft, and others. Employing gripping first-hand testimony and featuring specially commissioned illustrations and detailed photographs, many in color, this lively study of the Browning .30-caliber machine gun reveals the origins, combat history and legacy of this versatile and dependable weapon.

Twenty-Two Caliber Varmint Rifles

Twenty-Two Caliber Varmint Rifles PDF

Author: Charles S. Landis

Publisher: Read Books Ltd

Published: 2013-04-16

Total Pages: 540

ISBN-13: 144749850X

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“Twenty Two Caliber Varmint Rifles.” is Charles Landis' book covering a wide variety of the 22 caliber varmint cartridges available, it gives detailed dimensions of the cartridge in tables at the rear of the book. Landis goes into detail about barrels and barrel steel as available in the early post WWII period. Landis details the problems faced with inferior steel and discusses tight and loose spots in barrels.

Aerodynamic Characteristics of 2-, 3-, and 4-, Caliber Tangent-ogive Cylinders with Nose Bluffness Ratios of 0.00, 0.25, 0.50, and 0.75 at Mach Numbers from 0.6 to 4.0

Aerodynamic Characteristics of 2-, 3-, and 4-, Caliber Tangent-ogive Cylinders with Nose Bluffness Ratios of 0.00, 0.25, 0.50, and 0.75 at Mach Numbers from 0.6 to 4.0 PDF

Author: Carroll B. Butler

Publisher:

Published: 1977

Total Pages: 248

ISBN-13:

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This report summarizes wind tunnel test data on various body alone configurations which provide a data matrix for bluff and pointed bodies of revolution with systematic variations in nose bluffness, nose fineness ratio, and cylinder afterbody fineness ratio. Modular model components were used to obtain static stability and drag data, with emphasis on the effect of nose bluffness on drag. Although data is included for tangent ogive noses of fineness ratio 2, 2.25, 2.5, 3.0, and 4, the nose fineness ratios of 2, 3, and 4 calibers include a systematic variation in nose bluffness ratios of 0.00, 0.25, 0.50, and 0.75 on cylindrical midsections of 5, 7, 9, and 11 calibers. A 1-caliber cylindrical afterbody is used with all configurations in this report.

Supersonic Magnus Measurements of the 10-Caliber Army-Navy Spinner Projectile with Wrap-around Fins

Supersonic Magnus Measurements of the 10-Caliber Army-Navy Spinner Projectile with Wrap-around Fins PDF

Author: Frank J. Regan

Publisher:

Published: 1970

Total Pages: 116

ISBN-13:

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A research configuration was formed by attaching wraparound fins in a cruciform arrangement to a 10-caliber Army-Navy spinner projectile. This configuration was tested in a supersonic tunnel to get the Magnus force and moment, as well as the normal force and pitching moment. Model spin rate was generated by means of fin cant.

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