Need ESC info

[Rolex]

I just got all the electronics from an E-Savage. Both motors, ESC, Tx and Rx. I have it all hooked up and tested, and it will be going in a twin screw catamaran hull.
Question is, how to I set the failsafe to turn the rudders slightly to aim it to shore, instead of stopping it in the middle of the river?
Once it's all installed, I'll be using a computer radio, but since I'm not familiar with ESCs, I need to know if I can adjust the Forward/Reverse with end points. Accidently hitting reverse will tear it up since it has so much torque. All I need is about 2% reverse, but I'm not sure it's possible with an ESC.

 

[Cupooterluvr]

Yeah, you can adjust the F/R with EPA. I have my RC18 on about 25% reverse EPA since all it does is go in circles with anything higher. Hitting the reverse (brake) is essentially the same as having a servo there on a nitro.

EDIT: I'm not sure you CAN adjust steering with a failsafe, RX or separate unit.

EDIT2: Thinking about it, I'm sure you could "trick" a separate failsafe unit into tweaking the steering by hooking it to the steering rather than t/b but I've never tried.

 

[flm_savage]

you can epa the forward and reverse easily with the new radio. The settings work amazingly well. I always lower my reverse on the electrics. I need just enough power to back up. I don't want to run 48mph backwards.

Its been so long since i setup a failsafe that i don't even remember what you can set. Ever since i got the spektrum bug and converted everything, i haven't had a glitch or range problem period. I faintly remember setting the brake so it would apply x% of brake if it lost signal.

Those motors are super torquey huh? I thought it was VERY stout for stock electronics.

 

[Rolex]

Those motors are super torquey huh? I thought it was VERY stout for stock electronics.

SERIOUS torque. I was really amazed by that setup. Thanks, also, for the Rx & Tx. Good to keep around for testing.

I'll connect it to a comp Rx and try the EPA to limit reverse.
I have a separate failsafe here, and I'll try running it to the steering servo.
So far, the ESC's failsafe light has not come on when I turn off the radio.

One more question. With a battery pack connected to the ESC, the switch did nothing, so I added an inline switch to cut power to the ESC. When I had 2 stick packs connected, the switch from the ESC now turned the power indicator on and off. Does that mean it also has a BEC and I don't need the standard 4 cell pack or hump pack?

 

[CharliesTheMan]

yes the E-Savage has a BEC and if it's set up like it was in the savage, you shouldn't need a hump pack separate.

 

[Rolex]

Excellent, then I'll remove the hump pack and the extra switch. I read that the failsafe will program itself by default. Do you know if I can by pass it if it does? Again, I DON'T want it to cut throttle in the river, but take a long sweeping curve, and end up at the shoreline.

 

[Rolex]

Bumpin' it up. I need to know if I can bypass the built in failsafe and use another one on the steering servo.

 

[CharliesTheMan]

Hey Ralph, I don't know about you, but if I program it to make a long sweep curve, it will no doubt make a long sweeping curve in the wrong direction and head further into the current or go to the other side of the lake that's impossible to get to.

Some of the new nitro boats out there have a return to shore backup system, I wonder how hard it would be to put one of those on your boats, and how much extra weight it would add.

 

[Rolex]

LMFAO! Trust me. That's EXACTLY what I thought of, it would bump the far shore rather than the one I'm on.
The electric return to shore system works on a nitro boat since the clutch disengages when the engine quits, allowing the electric motor to spin the prop with no problem. It will be a different situation with those torquey motors from the E Savage.
I'll have to give this some thought before I install the system permanently.