Glider with front-wheel drive

Uldis Atmats, a graduate of the Liepaja branch of Riga Polytechnic Institute, had been fond of aeromodelling and water-engine sports since his youth. In particular, R-1000 glider racing with Wartburg engines. It had been a long-time dream of his to create a glider that would not go up on a wave or gust of wind.

And here we have put an absolutely original idea into practice. Uldis put in a bow of the boat not an engine, but the screw (!), having placed it on a special skeg under the bottom. Nearby, there's a small rudder-float

, necessary to move the boat to the bow to make it easier to pass corners.

Now there is no more possibility of taking off and flipping over the bow - at the slightest attempt of the boat to raise the bow the propeller will come out of the water, after which the racing projectile will gently lower back down.

Isn't it a splendid idea? And it is already patented.
The main (aft) rudders of the racing machine also attracted attention - having an intricate cross-profile, they have a ventilated back edge: air escaping from special holes prevents cavitation.

As usual, all ingenious things are not simple, but very simple. And it's strange that nobody has thought of such an idea before...