Finished securing the motor mount and took the Emile for a stress test in the pool. No failures, and it seems to be a very solid and robust option. Definitely won't be nervous letting somebody else drive this boat.
I haven't found a spec sheet. But I had a Johnson motor that looked identical that stalled at over 70A. Throw a meter on it and stall it briefly. Better to know so you don't hit some weeds and let the magic smoke out of your ESC.
According to this Ebay listing, the stall current at 8.4v is 75A. http://www.ebay.com/itm/Johnson-Ele...388076?hash=item3f43337f6c:g:TbgAAOSwuMFUkChV Not sure what to think about that other than I don't want to stall the motor for very long!
I dislike fuses greatly. They are a quick acting single point failure. I prefer to change equipment out so that it meets my needs and runs inside the specs of the other gear. In 13yrs or so I've never let the smoke out and I've been tangled up plenty.
Match your electronics appropriately and you won't need fuses, unless of course you like the idea of sitting on the water dead while people pound on your ship.
Last couple nights I managed to get the wiring completed. Simple wiring harness. 5mm bullet connectors go to the battery, two XT60 connections for the drive and pump, and a 2mm bullet connection for the solenoid. Also working on internal placement of things. I think I have everything the way I like it, so here are some pics. Battery location in the bow with the Co2 bottle midship. This configuration actually shortens both the wiring and gas lines considerably. Need to build some sort of a holder to keep the battery in place. Drive ESC sits right behind the battery. Need to make a mount for that too yet. Pump ESC lies beside the Co2 bottle as does the firing board(not pictured). Gun solenoid sits directly behind the bottle(which needs a mount), and the pump right behind that. Better shot of the pump and drive motor. I need to print a cover to go over the drive chain to it doesn't devour anything. I put screening over the holes in the motor casing, but later discovered that a bb can't pass through them. Eh. I guess they'll keep balsa bits from getting in the motor. Over the 4th of July holiday I varnished the decks. It's hard to capture how good they look with a camera, but they came out really nice. Also got my radio configuration set up for this boat. Really nice and simple. That's it for now, Enjoy!
Heh, I guess that makes me unique. I'll reverse it to "normal" if I ever give her to somebody to drive.
Question, the solenoid for the gun is about 12-14 inches away from the gun. Should I run all that with 1/16 hose or run it partially with 1/8 and drop down to 1/16 closer to the gun?
