Question on swim platform

[slideruleracer]

That one might be hard to get your hands on. Here's one you could use - just might need a relay as the max current is 1A. Not sure what the starter relay draws..

https://www.hawkusa.com/manufacturers/z ... dUQAvD_BwE

[Ytmsn]

I don't have a swim platform otherwise I'd gladly come up with a little mounting bracket, but all you need is a submersible reed switch. Something like this:
http://www.hydracon.com/wp-content/uplo ... 1-202a.pdf

Wire it back to be inline (serial) with the safety tether switch and you're good to go. I guess you'd need to drill a tiny hole through the back of the boat (GASP!) to run the wire, but that's easy-peasy.

Slide I have no doubt if the news helicopter made an emergency landing in your backyard, you could fix the darn thing!