Relative bearing to true bearing

[Deamon]

I use a calculator :)

I just do it in my head. And do the 3 minute rule, too. 24 years in the Fleet and you can do it half asleep (and I frequently did).

What is this 3 minutes rule ?

Deamon

[Sawdust]

It is better to do plots of the target range/bearing every 3 minutes and 15 seconds.
I'm impatient, and have been using the 1:37 rule (half of the 3:14 rule).
Just double the result and you can get a speed reading in half the time. :)

--
Hey Deamon, your signature image is stretching peoples text off of the screen.

[Deamon]

Hey Deamon, your signature image is stretching peoples text off of the screen.

:arrgh!:

Is that better now ?

Deamon

[Sawdust]

Hey Deamon, your signature image is stretching peoples text off of the screen.
:arrgh!:
Is that better now ?
Yes, thanks! :)

[don1reed]

Greetings Deamon:

the 3 min rule is to yards as the 3.25 min rule is to meters, i.e.,

distance (yds.) traversed in 3 min. / 100 = speed in knots.
distance (m.) traversed in 3.25 min. / 100 = ditto

[Deamon]

Greetings Deamon:

the 3 min rule is to yards as the 3.25 min rule is to meters, i.e.,

distance (yds.) traversed in 3 min. / 100 = speed in knots.
distance (m.) traversed in 3.25 min. / 100 = ditto

Greetings Don,

thanks.

Deamon