OpenEuphoria

Re: Calculating Drag

• Posted by Irv Mullins <irv at ELLIJAY.COM> Feb 08, 2000
• 424 views

----- Original Message -----
From: David Roach <roachd_76 at YAHOO.COM>
To: <EUPHORIA at LISTSERV.MUOHIO.EDU>
Sent: Tuesday, February 08, 2000 7:48 AM
Subject: Re: Calculating Drag


> Hi Ben,
> I looked on the internet for about 2 hours and couldn't find a thing.
> I guess I should of been more specific. I am dealing with the speed
> of bullets. So we are definetly talking about over the speed of sound.
> But then again in flight they slow down to below the speed of sound.
> But I don't believe I will be dealing with them when they get to that
> point. What does k stand for? Would that be the coeficient of the bullet?
> F is the negative force on the bullet right? Over the speed of sound
> does the bullet slow down at vx/vx^3 or something like that? God
> wish I had of stayed in college and finished physics now. Know any
> good web sites? I apreciate your help.

http://www.dexadine.com/download.htm

This is a ballistics plotting program - draws graphs, taking into account
temp, barometric pressure, humidity & altitude (density of atmosphere),
bullet shapes, etc.

This is a  demo, but you might learn from it, or use it to compare flight
paths. (draws nice graphs and breaks out velocity/height into spreadsheet
form)

Regards,
Irv