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Old 03-20-07, 01:16 PM   #23
Ragtag
Seasoned Skipper
 
Join Date: Jan 2002
Location: Oslo, Norway
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Quote:
Originally Posted by Dragonhammer
Sadly the estemated targets speed option does not function.
You can use the 3 minutes 15 second rule to calculate the speed,if you have automatic map updates on this is easy.
go to nav map and make a mark on the targets postion then wait 3.15 minutes and then make another mark on the targets postion.
Then use the ruler to measure the distance between the two marks and then you have the targets speed,for example you measure 0.9 wich is equal to 9 knots
A less accurate method is to guess the targets speed this is done from experience.
Merchants often travel at 6 knots,a carrier at 9 knots,a cruiser at 16 knots.
This method by no means 100% correct because speed can and will vary but its good to use when you don't have 3 minutes and want to do a quicky.
Thank you for your help I guess this will have to do untill they fix it.
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