If you travel on the ICW or other waterway marked in statute miles, its handy to
have the log read in "baby miles." The ST50 is certainly capable of this.

The manual for the ST50 Speed can be found on raymarine.com - you have to look
in the "old instrument" section.
http://www.raymarine.com/raymarine/S.../ST50Speed.pdf


"Jofra" wrote in message ...
Why would you want to?

jofra


"g" wrote in message
news
Hi
Just bought a used boat and it has a Autohelm ST50 plus
any one know how to get the speed to read in MPH and not in knots per
hour?

Thanks
M