SUBSIM Radio Room Forums - View Single Post - Shooting on a steady wire -- possible?

Threadfin · 03-19-07, 02:55 PM

In the case of SH3, the target speed was calculated by the TDC. You simply entered range and AoB, then speed was determined by how much apparent change, in degrees, the optic moved over a given period of time.

The US TDC should do the same. SKippers would raise the scope periodically and call a bearing mark. Given the target's range and AoB, speed was automaticlly calculated by the apparent change in bearing between the marks. More marks, more accuracy.

In the case of SH3, it was important for your sub not to be moving to get an accurate reading. US TDCs had the position keeper, which should factor the sub's own movements into the apparent bearing change.

03-19-07, 02:55 PM	#5
Threadfin Ace of the Deep Join Date: Feb 2006 Posts: 1,163 Downloads: 38 Uploads: 0	In the case of SH3, the target speed was calculated by the TDC. You simply entered range and AoB, then speed was determined by how much apparent change, in degrees, the optic moved over a given period of time. The US TDC should do the same. SKippers would raise the scope periodically and call a bearing mark. Given the target's range and AoB, speed was automaticlly calculated by the apparent change in bearing between the marks. More marks, more accuracy. In the case of SH3, it was important for your sub not to be moving to get an accurate reading. US TDCs had the position keeper, which should factor the sub's own movements into the apparent bearing change. __________________ What? Behind the rabbit?