Thursday, April 3, 2025

Re: Boot


If you're German, you'd get that (Ed. 'boot' is German for 'boat').

Did though mock up something like this but stabilised by outriggers, but it was to use a technical term: shite. I thus figured it was not necessary and that the mono could be adapted to suit.

And what appeals about it over the cat is the fact it needs only one motor and given my experience with T-motor's great-kit-no-backup business model, anything that reduces my reliance on electronic speed controllers is good in my book.

(It will though need a rudder, but servos are old hat and I've used them in the past.)

The previous mono having been broken up for parts, this I knocked up in a half-day using leftovers from around the workshop. It's six feet long, two wide and one deep.

As it's half boat and half plane, however, I'm having to design for both contingencies and as you will know, most aircraft have motors (and the C of G) pitched forward for stability. Thus the motor will appear as previously advertised: out front of the deck.

As it stands, the C of G sits around a foot to the rear of the centre-post, where you can see I've balanced the craft on a length of dowel. After fitment of the motor that is likely to be around six inches aft of that leading edge, which is ideal for those times when it breaches the surface like a wooden whale.

We have seen from previous flotation tests that these things sit nose heavy at rest in the water, though I think I've a solution for that which we shall investigate sooner in place of later ~ in fact I've not let the water out of the bath so as to test the notion.

The battery meanwhile represents useable ballast that can be located to adjust the C of G to best suit operation at rest and on the plane, with the benefit that unlike fuel tanks their weight and centre of mass do not alter as energy is expended.

As seen here it weighs 2.90 kilos or 6.40 pounds... one pound for each foot of length, which is not bad comparing to other monohull watercraft.