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#1
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Its amazing that someone thought that would be a good idea.
http://1000aircraftphotos.com/Helicopters/999.htm Would you fly this one? Definitely! The reason, why somebody tried this very good, but unusual (and at first confusing) concept is: As we all know, a helicopter is at least statically unstable. This is one of the big disadvantages esp. in hovering. BUT, if the CG is above the rotor disc, the whole things becomes stable!!! |
#2
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Or how 'bout these huh?
http://i3.tinypic.com/wapyfd.jpg This one actually flew. Can you imagine losing a blade? Can you imagine stumbling on landing? http://i3.tinypic.com/wapyxk.jpg How's bout one w/ only one blade? http://i3.tinypic.com/wapz6s.jpg http://i3.tinypic.com/wapzeq.jpg What's the deal w/ the counter weight? Why not have two blades and use that dead weight to generate lift? The Monk |
#3
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![]() "Flyingmonk" wrote What's the deal w/ the counter weight? Why not have two blades and use that dead weight to generate lift? Believe it or not, every additional blade means a loss of efficiency. One blade should hover and fly on less HP than two blade. That says nothing for smoothness, and I would think that setup would be totally unacceptable, for that one. -- Jim in NC |
#4
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Morgans wrote:
Believe it or not, every additional blade means a loss of efficiency. One blade should hover and fly on less HP than two blade. That says nothing for smoothness, and I would think that setup would be totally unacceptable, for that one. I have seen propellers for a model airplane that had only one blade, with a counter weight... has it ever been made for a full scale aircraft? --Sylvain |
#5
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One small step for a man...
One giant leap for humanburger. My apologies to Neil Armstrong. Flyingmonk wrote: http://1000aircraftphotos.com/Helicopters/999.htm Would you fly this one? The Monk |
#6
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In article .com,
says... http://1000aircraftphotos.com/Helicopters/999.htm Would you fly this one? !!!!!!!!!!!!!!!! The picture about four slides later is not bad either! http://1000aircraftphotos.com/Helicopters/1046.htm Buzzsaw in the breadbasket - front and rear! How much efficiency would be sacrificed by putting a wireframe guard around these things? I don't mean a tight mesh that you couldn't still get a finger into - but at least something rigid enough to keep you from slipping in up to your waist! Damn. GF |
#7
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![]() The picture about four slides later is not bad either! http://1000aircraftphotos.com/Helicopters/1046.htm Buzzsaw in the breadbasket - front and rear! Holy Crap! Is the pilot really as close to the blades as it appears? |
#8
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("Greg Farris" wrote)
The picture about four slides later is not bad either! http://1000aircraftphotos.com/Helicopters/1046.htm Buzzsaw in the breadbasket - front and rear! "Please DO NOT remove Shopping Carts from the parking lot." Montblack |
#9
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![]() "Greg Farris" wrote The picture about four slides later is not bad either! http://1000aircraftphotos.com/Helicopters/1046.htm Buzzsaw in the breadbasket - front and rear! How much efficiency would be sacrificed by putting a wireframe guard around these things? I don't mean a tight mesh that you couldn't still get a finger into - but at least something rigid enough to keep you from slipping in up to your waist! Damn. Damn, is the least you can say? Double damn! Ever seen a prop spin off of a model airplane engine? I have. I was testing the needle setting by holding it pointed straight up, wide open throttle. If it sags, going lean pointed up like that, then it needs more adjustment. For what ever reason, (either it got loosened, or I forgot to tighten it) it suddenly departed the engine. I was surprised (understatement of the year) to see it continuing to spin, in the same rotational plane. With no weight holding it down, the thrust lifted the prop straight up into the air about 5 feet rather quickly; then it arced back over my head. (and two or three other ducking bystanders) It happened so quickly, I barely had time to duck and pull the throttle down, to avoid hand grenading the engine. Now picture one of those props doing the same thing. Oh, and I also wonder what OSHA would think about that setup, nowadays. (:-o) Nah, that's a lie. I don't have to wonder! g -- Jim in NC |
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