 | | Re: hoovercraft with lift, thrust and steering
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"Paul Krieg" <pdkrieg@epix.net> wrote in message news:HB9KH9.8H1@lugnet.com... (...) oh G! :) what motor will rotate it? it has to create much resistance on the air (...) but it could cause the hovercraft will rotate instead of propeller :))) (...) (22 years ago, 5-Mar-03, to lugnet.technic)
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| | Re: hoovercraft with lift, thrust and steering
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(...) I may sound silly. Since you ask... I am trying to build a helicopter that will be powered by a pneumatic engine. That is way it needs to be large. I was stumped at how to make the rotor wings untill I saw your hovercraft. I made a couple test (...) (22 years ago, 5-Mar-03, to lugnet.technic)
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| | Re: hoovercraft with lift, thrust and steering
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"pixel" <pixsrv@poczta.onet.pl> wrote in message news:HB9n89.DzD@lugnet.com... (...) news:HB9KH9.8H1@lugnet.com... (...) With those big blades you do not need the high speed to get lift, so you can use a geared down motor for this I think? But that (...) (22 years ago, 5-Mar-03, to lugnet.technic)
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| | Re: hoovercraft with lift, thrust and steering
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"Paul Krieg" <pdkrieg@epix.net> wrote in message news:HBAB08.I83@lugnet.com... (...) not at all !!! sometimes i'm going the way which leads to nowhere sometimes even more than once since the working model appears (...) new pistons (with silver (...) (22 years ago, 6-Mar-03, to lugnet.technic)
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| | Re: hoovercraft with lift, thrust and steering
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"Øyvind Steinnes" <senniets@online.no> wrote in message news:HBAoL9.9CH@lugnet.com... (...) when we see helicopters they have slim blades with very high rpm so i think wide blades are not too good but keep working... i saw few applications just (...) (22 years ago, 6-Mar-03, to lugnet.technic)
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| | Re: hoovercraft with lift, thrust and steering
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<<snip>> (...) This is correct. Another way is to use a "tube"-shaped skirt, blow air into that and let extra air pass through holes on the inside of the skirt. Might be harder to construct though. This way the air comes from the skirt and blows (...) (22 years ago, 6-Mar-03, to lugnet.technic)
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| | Re: hoovercraft with lift, thrust and steering
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(...) I think one reason helicopter blades are so thin is because they are changing pitch every cycle with the cyclic control. Thicker blades would require much more torque to change the pitch, making the hub much bigger. Also the length of blade (...) (22 years ago, 6-Mar-03, to lugnet.technic)
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