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04-12-09, 03:23 AM

I feel like I'm using quite "ancient" way to measure distance, speed, AOB.
Without any whiz-wheel so far.

All I do is: lock the target with attack periscope at dead stop. ID the ship. Measure the distance with periscope, while keeping in mind its bearing on my periscope I mark the location of the ship on nav map. Letting the clock go for 3.15 min. Then the same procedure again measure distance, mark the target on nav map. When I already got two marks I draw a line through them to get a course and resolve AOB from last mark position on the map. I measure distance between those two marks I made, multiply it by ten and I get the speed. All whats left to do is to enter values to TDC and fire.

Disadvantages: when in heavy seas it is PITA to get accurate distance with periscope.

04-12-09, 03:23 AM	#30
Contact Stowaway Posts: n/a Downloads: Uploads:	I feel like I'm using quite "ancient" way to measure distance, speed, AOB. Without any whiz-wheel so far. All I do is: lock the target with attack periscope at dead stop. ID the ship. Measure the distance with periscope, while keeping in mind its bearing on my periscope I mark the location of the ship on nav map. Letting the clock go for 3.15 min. Then the same procedure again measure distance, mark the target on nav map. When I already got two marks I draw a line through them to get a course and resolve AOB from last mark position on the map. I measure distance between those two marks I made, multiply it by ten and I get the speed. All whats left to do is to enter values to TDC and fire. Disadvantages: when in heavy seas it is PITA to get accurate distance with periscope.