No excuse really on a day like this not to don waders and get back to the pond, where more debris has been tipped by the locals in an effort to deter youths from carrying out static flotation tests: but I've suffered for my art, and now it's your turn.
Pleasingly the craft floats level, with its motor kissing the waterline... with a few lilies, Monet would have been happy painting this one.
Situation improved by rear-loading the deck with a 2.50 kilo battery-pack that is good for around twenty minutes, the craft looking like it's champing at the bit.
What I have to do now is replace the diagonal (forward-biased) foam in the keel with a rectangular panel that I hope will make little difference here, yet make building easier and reinforce the end result.
Spoiler alert: experience suggests that unladen this will raise the deck clear of the water but settled on one side ~ and look a bit shit ~ tho' I figure with the battery-pack added normal service will be resumed. Don't worry about liquid ingress to the motor, incidentally, as these things run submerged.
The boat weighs 9.50 pounds without the battery and with its C of G six inches aft of datum (the forward edge of the deck.) As the motor produces the same thrust it may be among the few naval aircraft able to accelerate vertically, or at least in theory.
Nice if it works.