Can't Remember Speed Formula

[direland69]

Originally Posted by Laconic

I use three minutes with Imperial measurments. Mark the spot, wait 3 minutes, mark the spot, and measure. Knock two decimal places off of the measurement and you have your speed (so 900 yards = 9 knots). I usually cross-check this with the speed estimation button on the TDC and the speed given when I send in a contact report.

I like that. I'll try that too. Thanks for the tip!