Aeroballistic Evaluation and Computer Stability Analysis of the U. S. Navy 20-millimeter General Purpose Projectile
Aeroballistic Evaluation and Computer Stability Analysis of the U. S. Navy 20-millimeter General Purpose Projectile

Author: Frank J. Regan

Publisher:

Published: 1971

Total Pages: 122

ISBN-13:

DOWNLOAD EBOOK

The report presents the results of ballistics range and wind-tunnel measurements of the static force and moment and the pitch-damping, roll-damping and Magnus moments for a General Purpose 20-Millimeter Projectile. Data are presented for a Smooth and Basic configuration. These aerodynamic data are used in a special digital computer program to rapidly assess the stability of the projectiles over various mission profiles. The normal-force and pitching-moment derivatives are evaluated, theoretically, by Wood's method and compared with the measurements.

Aeroballistic Evaluation and Computer Stability Analysis of the U. S. Navy 20-millimeter General Purpose Projectile
Aeroballistic Evaluation and Computer Stability Analysis of the U. S. Navy 20-millimeter General Purpose Projectile

Author: Frank J. Regan

Publisher:

Published: 1971

Total Pages: 124

ISBN-13:

DOWNLOAD EBOOK

The report presents the results of ballistics range and wind-tunnel measurements of the static force and moment and the pitch-damping, roll-damping and Magnus moments for a General Purpose 20-Millimeter Projectile. Data are presented for a Smooth and Basic configuration. These aerodynamic data are used in a special digital computer program to rapidly assess the stability of the projectiles over various mission profiles. The normal-force and pitching-moment derivatives are evaluated, theoretically, by Wood's method and compared with the measurements.

Design for Control of Projectile Flight Characteristics
Design for Control of Projectile Flight Characteristics

Author: United States. Army Materiel Command

Publisher:

Published: 1966

Total Pages: 290

ISBN-13:

DOWNLOAD EBOOK

This handbook presents a general survey of the principal factors affecting the flight of projectiles, and describes the methods commonly used for predicting and influencing the flight performance. The coefficients which characterize the aerodynamic forces and moments of a moving body are identified, methods for determining the coefficients applicable to a projectile having a given shape and center of gravity location are described, and the coefficients of a number of projectiles and projectile shapes are given. The use of aerodynamic coefficients in predicting stability, range and accuracy is described. The effects of variations in projectile shape and center of gravity location on range, accuracy and lethality are discussed. Some material on prototype testing and the effects of round-to-round variations in production lots is presented.

Russia’s Military Modernisation: An Assessment
Russia’s Military Modernisation: An Assessment

Author: The International Institute for Strategic Studies (IISS)

Publisher: Routledge

Published: 2020-09-29

Total Pages: 273

ISBN-13: 1000344517

DOWNLOAD EBOOK

This new IISS Strategic Dossier examines the recent development of Moscow’s armed forces and military capabilities. It analyses the aspirations underpinning Russia’s military reform programme and its successes as well as its failures. The book also provides insights into Russia’s operational use of its armed forces, including in the intervention in Syria, the goals and results of recent state armament programmes, and the trajectory of future developments. This full-colour volume includes more than 50 graphics, maps and charts and over 70 images, and contains chapters on: Russia's armed forces since the end of the Cold War Strategic forces Ground forces Naval forces Aerospace forces Russia’s approach to military decision-making and joint operations Economics and industry At a time when Russia’s relations with many of its neighbours are increasingly strained, and amid renewed concern about the risk of an armed clash, this dossier is essential reading for understanding the state,capabilities and future of Russia’s armed forces.