Full size electric boat controller questions

[lincpimp]

Originally Posted by hemiblas

What about one of those automotive relays? They are pretty cheap and you can get them in 60A or 80A versions?

Not sure how to wire them, but I have an idea.

Originally Posted by What's_nitro?

That module should work fine. It looks like two 50A SPDT auto relays potted in epoxy. You could do it cheaper if you wanted to build it yourself.

I am curious; why no variable speed?

I have been using it with the variable speeds and it does not really do anything for me. It is pretty slow on max speed, any slower and I may as well just swim!!!

Plus due to the rudder loaction the boat does not handle well at slow speeds with the motor powering it. It will turn very tight with the pedal powered prop, so that is how I get it up to my dock.

I do have all of the electronics that came with the broken trolling setup, which includes a variable speed setup and on/off switch. I may just take that apart and adapt it. Not sure how easy that will be...

I guess I can look into a pair of stdp relays, I liked the potted sealed one I linked to, and found it for about 50 bucks shipped.

[sikeston34m]

How about a Castle MMM ESC and a servo tester pot?

Reversible variable speed plus a neutral position.

Just be sure to put it in brushed mode.

btw.........my 55 pound thrust trolling motor in my 18 foot deep V boat pulls 50 amps at full speed.

[lincpimp]

Originally Posted by sikeston34m

How about a Castle MMM ESC and a servo tester pot?

Reversible variable speed plus a neutral position.

Just be sure to put it in brushed mode.

btw.........my 55 pound thrust trolling motor in my 18 foot deep V boat pulls 50 amps at full speed.

Interesting idea Sike.

Any chance for a link to a servo tester, I vaguely remember seeing one of those a while back.

[_paralyzed_]

servo tester: http://www.hobbyking.com/hobbyking/s...idProduct=8296

[sikeston34m]

Originally Posted by lincpimp

Interesting idea Sike.

Any chance for a link to a servo tester, I vaguely remember seeing one of those a while back.

Yes, what he said on the link, Linc. LOL

I kinda like the idea because you have the built in LVC if you want to get interesting and use some of those Lipo Packs you have laying around.

A trolling motor cools itself pretty well. I wonder if you could bump it up to 4S voltage and travel faster than you can swim?

How many pound thrust motor are you working with?

One thing about trolling motors, much is lost in the crappy factory wiring. The more voltage drop you have, the less total watts of power the motor puts out.

Think overkill. Even 10ga. silicone wire gets warm after 10 or 15 minutes at 50 amps. Maybe rewire everything with 8Ga.?

My 55lb thrust motor is putting out about 650 watts now.

PS.....have you seen my trolling motor thread lately?

http://www.rc-monster.com/forum/show...187#post406187