 Why can switched reluctance motors acheive high efficiency when coilguns cannot?
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Yanom
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Registered Member #4659
Joined: Sun Apr 29 2012, 06:14PM
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Steve Conner wrote ... But you can't do anything about the airgap and still have a thing that looks like a gun, firing a projectile that looks like a bullet. Your efficient coilgun will end up looking like a linear switched reluctance motor, launching a slab of laminated iron from a track made of transformer E cores. 
has anyone built this? You could also mold the slab into an airfoil shape to help it "fly" across the track and have less friction. Very cool.
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BigBad
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Registered Member #2529
Joined: Thu Dec 10 2009, 02:43AM
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NASA or one of the US universities built one a bit like that I think.
Gerard O'Neil put a plate on a table-type thing and it went flying off across the room. It wasn't aerodynamically shaped though.
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