This type of "spam" is not unknown, in that you can be hacked and end up sending out Spam to all your contacts. It has happened to me before and to some friends. As advised, check your security and change your password.
Hi Folks, I don't know if it would work, BUT Balsacraft used to market a building jig for aircraft that used "T" nuts on the reverse and sliding plastic brackets on the surface. Could that be modified for boats?
From memory the centre prop was used in harbour or for station keeping at sea. when required the "wing" engines were started. I remember many years ago watching one leave Yarmouth harbour on the isle of Wight and the sound was incredible.
This Sea King was bought me as an anniversary prezzy over 40 years ago and was run up to about 11 years ago when it was stored away in the cellar. Unfortunately we had a flood and as the boat was wrapped in a binbag it could not float out and all systems were wrecked. I now intend to re-fit. As you can see she needs new rails and external fittings.
[Score: 5/10] 30" SEA ROVER Capable of 3mph and a runtime of 20mins Single Propellor (3 Blade 30mm) Direct Drive to a Mabuchi (3 Blade) Powered by Lead Acid (6v) 2Amp/h Batteries Controlled Through N/A (5Amps) ESC - Comments: Model was Sea Rover, built about 50 years ago with my father on the living room floor. Power was a Mabuchi 6/12 volt running on two PJ996 lantern batteries or two 4.5v bell batteries wired in series. Well before R/C. Finally gave ot aay to neighbours son and switched to aircraft for 40 years. Now living in Portugal and glow fuel hard to get so changing back to water craft.
Your speedboat is an "Intercepter 650" and came in two versions, Ready to run with installed radio gear or as a bare bones and fit your own running gear and radio. I have the ready to run and has a decent turn of speed.