Model Boat Mayhem

Technical, Techniques, Hints, and Tips => DC Motors (Brushed) and Speed Controllers => Topic started by: imara on October 02, 2010, 03:20:30 pm

Title: how to find Amps on model boat electrics
Post by: imara on October 02, 2010, 03:20:30 pm

The only way to get a true figure is to connect a ammeter in line with a motor put the motor under load ie in the water on full throtle (holding the boat) this will give you a true current reading
Ray

Title: Re: how to find Amps on model boat electrics
Post by: dougal99 on October 02, 2010, 03:29:31 pm

I use this method but have seen it suggested to me that the reading will be slightly over the 'free running' current due to the 'restraining hand'. Anyway it will give working figure and the actual figure will not be any higher.

Title: Re: how to find Amps on model boat electrics
Post by: mersey dave on October 02, 2010, 03:34:32 pm

I agree with ray, the way he has said is the way i check my motors, works fine  :-)) :-))

Regards Dave.

Title: Re: how to find Amps on model boat electrics
Post by: Shipmate60 on October 02, 2010, 06:13:44 pm

You wont get the max amps used as in going full astern while travelling full ahead but as has been said will give a good indication with a small factor of safety.

Bob