Ok guys, I saw this boat running ( with turbine). First to say the boat is not build up to be very light, 2 1,5 liter kerosine tanks, 3 rc boxes, full cockipit interior ( I think the cowl weighs as much as my Cayman equipped with a 260 PUM). Total weight about 20 kg. The sound is awsome, put it in the water and then start remotely, hearing the turbine revving up.....it's like a jet airplane starting.
Thomas build ingenous airintakes that seperate the water from the air. Speed not yet very impressive, I'd say 60 km/h, tremendous throtlle lag of about 2 seconds. But the sound, hearing is believing in this case.
Julius