Comments on: The FREAK of the Month ~ No. 3 – The Rotor Airship http://blog.modernmechanix.com/2008/09/10/the-freak-of-the-month-no-3-the-rotor-airship/ Yesterday's tomorrow, today. Sun, 22 Nov 2009 11:04:18 -0800 http://wordpress.org/?v=2.8.4 hourly 1 By: beagledad http://blog.modernmechanix.com/2008/09/10/the-freak-of-the-month-no-3-the-rotor-airship/comment-page-1/#comment-1060599 beagledad Thu, 11 Sep 2008 21:05:50 +0000 http://blog.modernmechanix.com/?p=5392#comment-1060599 It looks a bit like those old badly-designed cigarette rolling machines. It looks a bit like those old badly-designed cigarette rolling machines.

]]> By: Charlene http://blog.modernmechanix.com/2008/09/10/the-freak-of-the-month-no-3-the-rotor-airship/comment-page-1/#comment-1060575 Charlene Thu, 11 Sep 2008 05:30:45 +0000 http://blog.modernmechanix.com/?p=5392#comment-1060575 Hey, didn't they just draw windows on a pasta roller? Hey, didn’t they just draw windows on a pasta roller?

]]> By: rsterling78 http://blog.modernmechanix.com/2008/09/10/the-freak-of-the-month-no-3-the-rotor-airship/comment-page-1/#comment-1060558 rsterling78 Thu, 11 Sep 2008 00:34:19 +0000 http://blog.modernmechanix.com/?p=5392#comment-1060558 The above link -- http://www.airbornegrafix.com/HistoricAircraft/ToFly/Rotorplanes.htm -- includes the following: "Built in 1930 (USA), the 921-V is reported to have been flown at least once - ending it's short carreer with a crash landing. It's probably the only aircraft equipped with cylinder wings which made it into the air." The above link — http://www.airbornegrafix.com/.....planes.htm — includes the following:

“Built in 1930 (USA), the 921-V is reported to have been flown at least once – ending it’s short carreer with a crash landing. It’s probably the only aircraft equipped with cylinder wings which made it into the air.”

]]> By: Rick http://blog.modernmechanix.com/2008/09/10/the-freak-of-the-month-no-3-the-rotor-airship/comment-page-1/#comment-1060552 Rick Wed, 10 Sep 2008 21:13:29 +0000 http://blog.modernmechanix.com/?p=5392#comment-1060552 Sure it's efficient. The lower rollers take the place of landing gear and all the weight of the gear and the retracting mechanism. I call that efficient. :-) Sure it’s efficient. The lower rollers take the place of landing gear and all the weight of the gear and the retracting mechanism. I call that efficient. :-)

]]> By: Jeff http://blog.modernmechanix.com/2008/09/10/the-freak-of-the-month-no-3-the-rotor-airship/comment-page-1/#comment-1060551 Jeff Wed, 10 Sep 2008 21:06:35 +0000 http://blog.modernmechanix.com/?p=5392#comment-1060551 Actually, the *theoretical* principles are sound, based on the Kutta-Joukowski theorem: http://hyperphysics.phy-astr.gsu.edu/hbase/fluids/kutta.html Actually, the *theoretical* principles are sound, based on the Kutta-Joukowski theorem:

http://hyperphysics.phy-astr.g.....kutta.html

]]> By: LightningRose http://blog.modernmechanix.com/2008/09/10/the-freak-of-the-month-no-3-the-rotor-airship/comment-page-1/#comment-1060543 LightningRose Wed, 10 Sep 2008 18:59:54 +0000 http://blog.modernmechanix.com/?p=5392#comment-1060543 Apparently, rotating cylinders have been used in place of wings on powered aircraft. http://www.airbornegrafix.com/HistoricAircraft/ToFly/Rotorplanes.htm http://www.youtube.com/watch?v=AyiDIY6Tj2E Apparently, rotating cylinders have been used in place of wings on powered aircraft.

http://www.airbornegrafix.com/.....planes.htm
http://www.youtube.com/watch?v=AyiDIY6Tj2E

]]> By: LightningRose http://blog.modernmechanix.com/2008/09/10/the-freak-of-the-month-no-3-the-rotor-airship/comment-page-1/#comment-1060542 LightningRose Wed, 10 Sep 2008 18:54:36 +0000 http://blog.modernmechanix.com/?p=5392#comment-1060542 It's called the "Magnus Effect", but I'm not sure it could generate both lift and/or propulsion efficiently enough to be practical in an aircraft. http://en.wikipedia.org/wiki/Magnus_effect Even NASA knows about it: http://www.grc.nasa.gov/WWW/K-12/airplane/cyl.html In the 1920's it was tried as a method of ship propulsion: http://www.tecsoc.org/pubs/history/2002/may9.htm It’s called the “Magnus Effect”, but I’m not sure it could generate both lift and/or propulsion efficiently enough to be practical in an aircraft.

http://en.wikipedia.org/wiki/Magnus_effect

Even NASA knows about it:
http://www.grc.nasa.gov/WWW/K-12/airplane/cyl.html

In the 1920’s it was tried as a method of ship propulsion:
http://www.tecsoc.org/pubs/history/2002/may9.htm

]]> By: Geek http://blog.modernmechanix.com/2008/09/10/the-freak-of-the-month-no-3-the-rotor-airship/comment-page-1/#comment-1060540 Geek Wed, 10 Sep 2008 18:19:28 +0000 http://blog.modernmechanix.com/?p=5392#comment-1060540 Time to study Bernoulli. Spinning a round object, in this case a tube shape, can give you lift as well as thrust. Ask any baseball pitcher with a good curve. Time to study Bernoulli. Spinning a round object, in this case a tube shape, can give you lift as well as thrust. Ask any baseball pitcher with a good curve.

]]> By: Erica http://blog.modernmechanix.com/2008/09/10/the-freak-of-the-month-no-3-the-rotor-airship/comment-page-1/#comment-1060522 Erica Wed, 10 Sep 2008 15:23:20 +0000 http://blog.modernmechanix.com/?p=5392#comment-1060522 Principles are sound?!? I wonder if they also said that about the guy who rode over a cliff on a bicycle with plywood "wings" strapped to his arms... "The principles are sound, we wish him luck!" Hilarious... Principles are sound?!? I wonder if they also said that about the guy who rode over a cliff on a bicycle with plywood “wings” strapped to his arms… “The principles are sound, we wish him luck!”

Hilarious…

]]> By: Myles http://blog.modernmechanix.com/2008/09/10/the-freak-of-the-month-no-3-the-rotor-airship/comment-page-1/#comment-1060520 Myles Wed, 10 Sep 2008 14:29:28 +0000 http://blog.modernmechanix.com/?p=5392#comment-1060520 Funny, at least they call it a freak. If the rotors have some sort of paddles or slots, maybe they could provide forward propulsion. Wouldn't be efficient though. Also there does not seem to be any controls like ailerons :) Funny, at least they call it a freak. If the rotors have some sort of paddles or slots, maybe they could provide forward propulsion. Wouldn’t be efficient though. Also there does not seem to be any controls like ailerons :)

]]> By: Al Bear http://blog.modernmechanix.com/2008/09/10/the-freak-of-the-month-no-3-the-rotor-airship/comment-page-1/#comment-1060518 Al Bear Wed, 10 Sep 2008 14:16:42 +0000 http://blog.modernmechanix.com/?p=5392#comment-1060518 It was a freak in 1931, but today it's a stupid thing. Seriously, they used to publish whatever without any scientific principle back then. If it looks modern and streamlined, it goes on. Little things like does it have a chance to work or how are not important. LOL's at this thing. It was a freak in 1931, but today it’s a stupid thing. Seriously, they used to publish whatever without any scientific principle back then. If it looks modern and streamlined, it goes on. Little things like does it have a chance to work or how are not important.

LOL’s at this thing.

]]> By: Steve http://blog.modernmechanix.com/2008/09/10/the-freak-of-the-month-no-3-the-rotor-airship/comment-page-1/#comment-1060511 Steve Wed, 10 Sep 2008 12:59:41 +0000 http://blog.modernmechanix.com/?p=5392#comment-1060511 I don't get it... how do giant spinning toilet paper rolls provide lift? I don’t get it… how do giant spinning toilet paper rolls provide lift?

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