From what I've seen of pitot pumps (Rotor-Jet) I'd be surprised if you didn't have trouble achieving scale performance.
As for the silver plating, I'd wait until you got a pump that performed before worrying about some possible perceived problem.
Tom
Have you considered a Tesla turbine at all? Its kinda the same only the casing is stationary with the impeller (a simple set of disks) spins. Both designs rely on surface friction and i would not know what kind of efficiency you would get with a Pitot design. The army did a study on the Tesla design for small turbines (aka about the same size) and got a efficiency in the 20% region. plenty good enough for a fun rocket!.
Greg
fast-moving
almost
proximity to
rotating seal
nozzle
second pump,
Reposted,
To the moderator, this posting seems to be missing from the latest batch, please include it in the next.
Craig F> >
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