New guy here. Have been mentally building an airboat for awhile, and have entertained the idea of using an electric pto/lawnmower clutch on a lawnmower engine. Engine mounted below a driven prop shaft, clutch on engine. Thinking this would give me a "neutral", if you will, so that one could dock or stop, leaving the engine running, but the prop not turning.
It would definitely need multiple v-belts, or a cog-type drive belt, that would probably require a custom made pulley.

Googled example here; https://www.amazon.com/dp/B01LY9YBFP...a-349392609969

Just wondering if anyone has tried it and failed or succeeded.

Roger