Cronometer seems to work
 

A guy from the german Ubi forum posted it.

First you identify your target and send data to TDC
Then you calculate range and send data to TDC.
Then you let the chrono run for about 30 sec. Then you stop it. One Clock-hand stand at 11 the other at lets say 5. So you have a target speed of about 10 knots. The distance between the clock-hnads seems to be the target speed
I tried this with the torpedo practis mission and it seems to be correct.

errrr...what?
Can you please post your Source of Information?
Thanks :up:

Found it. Have yet to try it out....sounds quite funny though

Source: (german)
http://forums-de.ubi.com/eve/forums/...4/m/8041024155

No forget it. Tried it on another mission and no joy here. Seems to be a coincindent
that it worked with trainings mission.

Yes its because the Training mission starts at ~11h and while you do your stuff with AOB and range its like 11:04. So the small clock hand points at ~57 minutes and the large clock hand points at ~3 minutes. Soooo one may guess they are 7 minutes apart = 7kn.
Pretty much coincidence :rotfl:

Funny though how desperate ppl are :roll: