Comments on: Rotary PDE http://selenianboondocks.com/2008/11/rotary-pde/ Random Musings from the Warped Minds of Jonathan Goff, Ken Murphy, John Hare, and Kirk Sorensen Thu, 26 Jan 2012 21:26:05 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: john hare http://selenianboondocks.com/2008/11/rotary-pde/comment-page-1/#comment-3718 john hare Mon, 24 Nov 2008 23:23:20 +0000 http://selenianboondocks.com/?p=820#comment-3718 I'm hoping a PDE proponent will weigh in with better answers than I have. Doubts about T/W seem quite reasonable. It is hard to see how a chamber with a few percent duty cycle can match T/W with a full time engine. I’m hoping a PDE proponent will weigh in with better answers than I have. Doubts about T/W seem quite reasonable. It is hard to see how a chamber with a few percent duty cycle can match T/W with a full time engine.

]]> By: jsuros http://selenianboondocks.com/2008/11/rotary-pde/comment-page-1/#comment-3715 jsuros Mon, 24 Nov 2008 18:16:09 +0000 http://selenianboondocks.com/?p=820#comment-3715 In looking at this idea, I can't help but flash back to the novel "King David's Spaceship", by Jerry Pournelle, in which an astronaut ascends to orbit using what amounts to a really big machine gun. Other than doubts as to the T/W you could get from this design, I don't know what else to say. In looking at this idea, I can’t help but flash back to the novel “King David’s Spaceship”, by Jerry Pournelle, in which an astronaut ascends to orbit using what amounts to a really big machine gun.

Other than doubts as to the T/W you could get from this design, I don’t know what else to say.

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