Modern Exterior Ballistics: The Launch and Flight Dynamics of Symmetrical Projectiles by McCoy, Robert L. and a great selection of similar Used, New and. Modern Exterior Ballistics: The Launch and Flight Dynamics of Symmetric Projectiles. Front Cover. Robert L. McCoy. Schiffer Pub., - Technology. Bob McCoy was a distinguished ballistician who worked at the U. S. Army Ballistics Research Lab for almost years doing theoretical and.

Author:

Burley Lind

Country:

Nauru

Language:

English

Genre:

Education

Published:

19 August 2015

Pages:

627

PDF File Size:

13.62 Mb

ePub File Size:

39.58 Mb

ISBN:

438-4-55613-527-5

Downloads:

37162

Price:

Free

Uploader:

Burley Lind

Some knowledge of fluid mechanics will make it a little more interesting, but is not required.

modern exterior ballistics mccoy The Flat-Fire Point Mass Trajectory This is where we get to calculate a trajectory in air - but only if we make some simplifying assumptions. The reader will find the derivation of the equations of motion of a projectile in still air without wind.

A solution of those equations can be found if one makes the assumption that only small angle of fire trajectories are interesting the flat-fire assumption.

Modern Exterior Ballistics: The Launch and Flight Dynamics of Symmetric Projectiles

This chapter is too basic for practical use, and has limitations that we can get around by using methods in later chapters, but the math is relatively simple - requiring only basic calculus to modern exterior ballistics mccoy though.

This method predates computers substantially, having been pioneered in the early 18th century by Johann Bernoulli. Fancesco Siacci developed an approximate solution to the flat-fire problem, which made solving the equations considerably less labor intensive.

Although inadequate for artillery, it provides good accuracy for small arms fire. The shooting sports industry has modern exterior ballistics mccoy good use of the Siacci method for many years, and continues to do so, in spite of it's limitations.

: Modern Exterior Ballistics : Robert L. McCoy: Books

The Effect of Wind on Flat-Fire Trajectories Finally we get to a matter near and dear to the modern exterior ballistics mccoy of long range shooters: McCoy begins the chapter by deriving the equations of motion for a point mass trajectory including wind and a flat-fire simplification that permits a nice analytical solution the equation that lets one calculate wind deflection.

This short chapter requires an understanding of differential equations, and is frankly, not that interesting, unlike the next chapter.

The Point-Mass Trajectory This chapter is the meat of the book, at least practically speaking. In chapter eight, McCoy shows how to calculate a trajectory based on the point mass model without a flat fire assumption.

This chapter is the basis for the Bison Ballistics Point Mass Calculatoralthough I used a different numerical solver than he suggests.

If you are not familiar with the numerical solution of modern exterior ballistics mccoy of differential equations, you won't be able to put this chapter to use, but there is a great discussion of atmospheric conditions that requires only basic math.

Modern Exterior Ballistics by Robert McCoy

Also included are a wide modern exterior ballistics mccoy of example calculations that will be modern exterior ballistics mccoy to all readers. The chapter ends with a discussion of the differences between point mass calculations and the Siacci method, a discussion of the Coriolis effect, and finally, a BASIC program that calculates a point mass trajectory.

The code is littered with typos, presumably from the OCR software used to scan it, and BASIC makes my head want to explode when compared with modern languages. But it's a nice reference if you've never attempted a project like this.

This is the grand-daddy ballistics model of them all. It calculates the complete motion of a bullet - displacement and rotation in all three directions. The math in this chapter is as bad as it gets.

Corrections to Modern Exterior Ballistics by Robert L. McCoy

It's a handful, and I got bored following it. Included in the discussion are analytical methods, change of variables from time to distance, numerical solutions and a chapter on the Siacci Method.

The Siacci Method provides a historical perspective for computing flat fire trajectories by simple quadrature and is used in the sporting arms modern exterior ballistics mccoy. The final six chapters of the book present an extensive physical and mathematical analysis of the motion of symmetric projectiles.

The linearized equations of angular and swerving motion are derived in modern exterior ballistics mccoy.

Modern Exterior Ballistics by Robert McCoy

Army Ballistics Research Lab for almost years doing theoretical and experimental work on everything from. Over the years you may have modern exterior ballistics mccoy some of his articles in Precision Shooting, Very High Power and other gun magazines.

The basic principles of ballistic science are developed from a comprehensive modern exterior ballistics mccoy of the aerodynamic forces that control the flight dynamics of symmetric projectiles. The author carefully starts with the basic vacuum point mass trajectory, adds the effects of drag, discusses the action of winds, simple flat fire approximations, Coriolis effects and concludes with the classic modified point mass trajectories.

Included in the discussion are analytical methods, change of variables from time to distance, numerical solutions and a chapter on the Siacci Method. The Siacci Method provides a historical perspective for computing flat fire trajectories by simple quadrature and is used in the sporting arms industy.

The final six chapters of the book present an extensive physical and mathematical analysis of the motion of symmetric projectiles.

The xStack DGS series of next generation Layer 2+ Gigabit switches delivers performance, fexibility, security, multi-layer QoS, and accessibility, along ...