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Old 12-21-10, 04:04 PM   #4
Bubblehead1980
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Join Date: Apr 2009
Location: Florida USA
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Quote:
Originally Posted by U-Falke View Post
Yes. On american TDCīs, you turn on th PK when the target is passing by the vertical line and can shoot moments later. When you shoot, donīt have to worry with the bearing of the periscope since TDC is on. Dont have to set a new range nor AOB if you intend to shoot moments later.
The gernam TDC requires you to set a new range before shooting (increases precision) and not the AOB. Also, if you change the bearing of th scope, the fish will go that way. So if you change the scpope from the aft to the targetībow, the bow will be hit. On the american TDC you will have to use an specific switch to change the path 1-3 degrees to port or starport. If not, the aft will be hit even if you change the scopeīs position.

Well how I usually shoot when using US fleetboats is aim individual shots...say im firing 3 fish at a mid sized merchant....I aim one amidships, one under the forward mast or just behind it, one aft.i aim by moving the scope and sending a new bearing for each shot.This is how many US skippers did it, easier than using the spread knob, hate that thing.Plus yes I had limited scope exposures since have the PK to track target.

I think my error was speed, not used to metric system so my speed estimation may have been off.I managed to sink a 5 ton tanker in a large convoy I found off coast of Spain when I was heading there in 1940 for the covert refit.Convoy must have came from the Med.

So you dont have to adjust the AOB to the last minute, just range and bearing?

Any quick methods for getting speed? I use the 3 minute rule with fleetboats.Mark a spot on map, time for 3 minutes, mark another spot...900 yards, 300 yards a minute, 9 knots.Not used to metric system.
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