[Trevally.]

Originally Posted by finchOU

Or did I miss something?

To work out the adjacent of a triangle you need to know the angle A and the opposite.

So when you lock onto a ship (after ID) pressing the space bar sends the mast height (opposite) to the TDC where angle A can be measured to give range.

So yes you must lock onto the ship

Another thing.......with respect to accurate TDC range for employing torepdos......Gyro angle change is almost nill with change in distance...meaning you'll use the same gyro angle for a target at say 700 meters verses 2500 meters...so accurate distance really does not matter. I'll cavate this by saying I almost always shoot torpedos to impact when the target is 90 AOB and never use magnetic pistols at different AOBs. Any thoughts on this?

Yes this is correct