Boats????
We've talked a little bit about
planes, now how about boats?
Boat Props tend to be
- Thicker
- Made of stronger Material
- Smaller Diameter
This is due to the material
differences of water vs. air, a good propeller in
air
may not be a very good propeller underwater.
Caviation can happen underwater,
which more the more fragile, longer aviation blades
can collape under the vaccume
that the prop would create. There is also the
problem the propeller blades being
exposed to the draft that the hull of the ship would
usually protect it from. These
reasons force boat props to have a more sturdy
tear-drop shape with less length.
Congragulations, you now know why boat props are the
way they are!
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