Author Topic: mortar game (Read 683 times)

guardsgunner · « **on:** April 28, 2005, 01:22:55 PM »

Don't know if you seen have seen this before or not. but.........

http://jersey.uoregon.edu/vlab/Cannon/

It can teach some lessons with going to the range.

Cat Whisperer · « **Reply #1 on:** April 28, 2005, 02:17:19 PM »

Cool game -

I'd love to have the formulas behind it - including ballistic coefficient (relating to density of the sphere) and wind direction and velocity.

GGaskill · « **Reply #2 on:** April 28, 2005, 02:39:51 PM »

I think it does not include the air resistance of the flight of the shot. The trajectory is perfectly parabolic with no wind when it should be a degenerate parabola (due to resistance of the shot passing through the air.)

I HAVE TO WITHDRAW THE ABOVE STATEMENT AS SWITCHING ON THE DRAG FUNCTION DOES CAUSE A REDUCTION IN RANGE (WITH NO WIND) OVER THE NON-DRAG SITUATION.

An email to Sean might get you the math. (The email address is hidden in the webpage text.)

Curtis · « **Reply #3 on:** April 28, 2005, 03:54:44 PM »

LOL, found a glitch. Put in angle 33, velocity 28, gravity -2.0, windage 24, density 0.01 and check the drag box. Now FIRE!!!

Curtis

GGaskill · « **Reply #4 on:** April 28, 2005, 04:25:25 PM »

But since we can't change the acceleration of gravity in the real world, ...