Author Topic: Ostie gun elevation (Read 355 times)

BUG_EAF322 · « **on:** December 12, 2002, 01:33:42 PM »

Anyone knows??

Turbot · « **Reply #1 on:** December 12, 2002, 01:42:41 PM »

There was this:

http://www.panzerworld.net/Ostwind.htm

Elevation -10° - +90°

AtmkRstr · « **Reply #2 on:** December 12, 2002, 03:07:05 PM »

Once I pointed the ostie gun straight up, and still couldn't target a con above me. I rotated the gun 360 twice (joystick in bottom corner), and my crosshairs made perfect circles around the jabo diving straight down on me.

The only way that could happen is if either the ostie's gun doesn't go straight up, or the guy happened to be moving perfectly to avoid my gun. It didn't seem to me that he was changing his course.

Shiva · « **Reply #3 on:** December 13, 2002, 09:45:13 AM »

Quote

Originally posted by AtmkRstr
Once I pointed the ostie gun straight up, and still couldn't target a con above me. I rotated the gun 360 twice (joystick in bottom corner), and my crosshairs made perfect circles around the jabo diving straight down on me.

The only way that could happen is if either the ostie's gun doesn't go straight up, or the guy happened to be moving perfectly to avoid my gun. It didn't seem to me that he was changing his course.

This is the same problem you have with any sight -- the line from your eye through the sight to the target and the line from the gun breech down the barrel to the target are not the same. Look at the Ostwind's gun; the gun carriage trunnions are several feet back from the swivel for the gunsight. The gun's elevation range is -10° to +90°, but when the gun is at full elevation, the sight is more than two feet away from the rotational axis of the turret, so that when you rotate the turret, the sight orbits the rotational axis in a circle, as you saw.

AtmkRstr · « **Reply #4 on:** December 13, 2002, 10:16:37 AM »

Good point. That makes sence, but it still shouldn't be enough for a 1 meter seperation in sight and gun to account for an 11 m plane to fit in that gap.

Lets say my convergence was set to 500. This should be where the sight and the gun are callibrated to line up perfectly. If I was firing at 1500 m, the radius of the circle made by the gunsight around the target should be 3m (using some law of similar triangles). It still doesn't add up unless my convergence was set to be 125m. I'll check it when I'm home.