Very cool control system
The drive with the angle reduced improves losses 20% 4.3 Amps idling so only 300mA losses from the shaft. I think the steering should be integrated as a kitchen rudder behind the prop.
Reversing the shaft on a Turnigy D3542/4 Aero drive It a 1450 KV and should deliver loads of torque at 14,000 RPM on as 3C
An interesting jet outboard very high outlet must cost power
Jet Propulsion for hydrofoil
One thing as there is no transom the bulky scroll will always be in the flow and the outlet will be under water which will reduce the trust considerably.
If the outlet was up high it would work better also the riser would need to be streamlined
Or what about an EDF pumping air into a venturi like below
The drive with the angle reduced improves losses 20% 4.3 Amps idling so only 300mA losses from the shaft. I think the steering should be integrated as a kitchen rudder behind the prop.
Reversing the shaft on a Turnigy D3542/4 Aero drive It a 1450 KV and should deliver loads of torque at 14,000 RPM on as 3C
Battery: 2~4 Cell /7.4~14.8VRPM: 1450kvMax current: 48A No load current: 4AMax power: 690WInternal resistance: 0.019 ohmWeight: 130g (including connectors)Diameter of shaft: 5mmDimensions: 35x42m
Above is a 47 mm prop I have a 57 to once I have the motor attached to the shaft sleeve I will do a power test in a tank see what thrust and Amps I get. With the fat end of 1 HP it should have plenty of clog to lift it up on the foils.
The shaft is running in a good quantity of copper slip. Ran it on a 4C for a minute an the brass only got warm.
I think the body of the hydrofoil will be a lunch box. I think I will have the prop shaft attached to the rear foil
Perhaps the prop on the above can be placed in a tube like these designs
Jet Propulsion for hydrofoil
One thing as there is no transom the bulky scroll will always be in the flow and the outlet will be under water which will reduce the trust considerably.
If the outlet was up high it would work better also the riser would need to be streamlined
Or what about an EDF pumping air into a venturi like below
Sunday, March 27, 2016
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