simple turbine drive

[hobbybuilder]

Here attached is a simple turbine drive
Large intake duct and exhaust
Different engine sizes can be swapped.
Speed 5-15mph.
Will be embeded under the boat.

Let me hear about your opiions.

[ernie]

could somting like this push a kayak at say 2-3 knots (paddle speed) with a 12 - 36 volt eletric motor?
can you post more detailed drawings?

[marshmat]

I'm afraid it's kind of hard to tell how it works from that drawing. What's the impeller configuration? It doesn't look like an axial or mixed-flow pump; a centrifugal would usually intake parallel to the shaft.... is it a gear pump of some sort? A flexible-vane pump?