Not sure what you mean Robin, drawing welcome, I suspect it resembles a NASA design where the wire was replaced by a sharp edge. I don't see how the thrust could exceed the rate of change of momentum transmitted from the ions to the air i*d/mu though, as this experimentally verified formula already assumes zero air resistance of the lifter structure. Also beware that charges deposited on insulators interact with the discharge!
(BTW it's Coanda, not Coander) Michel ----- Original Message ----- From: "Robin van Spaandonk" <[EMAIL PROTECTED]> To: <vortex-l@eskimo.com> Sent: Monday, February 26, 2007 3:29 AM Subject: Re: [Vo]: Re: lifter in a accelerating frame > In reply to Michel Jullian's message of Mon, 26 Feb 2007 00:27:04 +0100: > Hi Michel, > [snip] >>Doing calculations in an accelerating frame makes me sick I am afraid ;-) But >>I guess it would be the same force, since it's not a ficticious one like e.g. >>the centrifugal force. >> >>My turn to give you some homework Harry, could you try the new >>multiwire-plane design guide I posted earlier today and let me know how >>usable it is? Say design the mother of all lifters, with the following specs: >> >>100 kg thrust, 1 m gap, 0.9 kV/mm >> >>Power consumption, area, wire spacing? >> >>Michel > [snip] > Someone should try a flying saucer shaped lifter, with a circular wire ring on > top as positive electrode, and disk shaped cathode underneath. The advantage > of > this is that you get extra lift from the Coander effect. The body should be a > good insulator (styrafoam?). > > Regards, > > Robin van Spaandonk > > http://users.bigpond.net.au/rvanspaa/ > > Competition (capitalism) provides the motivation, > Cooperation (communism) provides the means. >
