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Re: Seems Pretty Stable: Why Not A Larger One For Human Transportation? The_Real_Hawkeye #4386168 09/05/10
Joined: Oct 2002 Posts: 96,121 Likes: 1 S Steelhead Campfire Oracle
Steelhead Campfire Oracle S Joined: Oct 2002 Posts: 96,121 Likes: 1	Originally Posted by The_Real_Hawkeye Originally Posted by Pete E Originally Posted by Bristoe What happens if one of the props fail? About the same as in a helicopter I'd imagine... No, since there are four propellers which serve partially redundant functions. Lose one, and you still have three propellers serving partially redundant functions. By altering the outputs in just the right way, you could compensate for the loss of one enough for a controlled landing. You do realize that props is plural for prop? Meaning many or all props. "Dear Lord, save me from Your followers"

Re: Seems Pretty Stable: Why Not A Larger One For Human Transportation? Steelhead #4386198 09/05/10
Joined: Jun 2002 Posts: 131,870 Likes: 41 USA T The_Real_Hawkeye OP Campfire Sage
OP The_Real_Hawkeye Campfire Sage T Joined: Jun 2002 Posts: 131,870 Likes: 41 USA	Originally Posted by Steelhead Originally Posted by The_Real_Hawkeye Originally Posted by Pete E Originally Posted by Bristoe What happens if one of the props fail? About the same as in a helicopter I'd imagine... No, since there are four propellers which serve partially redundant functions. Lose one, and you still have three propellers serving partially redundant functions. By altering the outputs in just the right way, you could compensate for the loss of one enough for a controlled landing. You do realize that props is plural for prop? Meaning many or all props. Not sure what you mean. Can you elaborate on that?

Re: Seems Pretty Stable: Why Not A Larger One For Human Transportation? The_Real_Hawkeye #4386246 09/05/10
Joined: Dec 2002 Posts: 22,274 Back in Texas, for good! tex_n_cal Campfire Ranger
tex_n_cal Campfire Ranger Joined: Dec 2002 Posts: 22,274 Back in Texas, for good!	Wonder how it would do in the wind? Might limit its usefulness outdoors Last edited by tex_n_cal; 09/05/10. "...the designer of the .270 Ingwe cartridge!..."

Re: Seems Pretty Stable: Why Not A Larger One For Human Transportation? DocRocket #4386254 09/05/10
Joined: Mar 2006 Posts: 19,508 Tip of the Mitten bruinruin Campfire Ranger
bruinruin Campfire Ranger Joined: Mar 2006 Posts: 19,508 Tip of the Mitten	Originally Posted by DocRocket This could be really handy when scouting for deer... Twas one of my first thoughts. 4 out of 5 Great Lakes prefer Michigan.

Re: Seems Pretty Stable: Why Not A Larger One For Human Transportation? DocRocket #4386264 09/05/10
Joined: Sep 2009 Posts: 2,489 In a suburb of Eagle River AlaskaFE Campfire Regular
AlaskaFE Campfire Regular Joined: Sep 2009 Posts: 2,489 In a suburb of Eagle River	Originally Posted by DocRocket This could be really handy when scouting for deer... . Hmmm, I wonder if that would violate the Alaska law against flying and hunting on the same day? It is incumbent on every generation to pay its own debts as it goes. A principle which if acted on would save one-half the wars of the world. - Thomas Jefferson

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Re: Seems Pretty Stable: Why Not A Larger One For Human Transportation? The_Real_Hawkeye #4387537 09/06/10
Joined: Jul 2005 Posts: 5,860 Arizona boy S sgt217 Campfire Tracker
sgt217 Campfire Tracker S Joined: Jul 2005 Posts: 5,860 Arizona boy	Originally Posted by The_Real_Hawkeye These little guys have video cams on them. If they were night vision, you could spy on night time activities without being seen. I wonder what their range is. Are you sure they aren't using them now??? ********

Re: Seems Pretty Stable: Why Not A Larger One For Human Transportation? sgt217 #4387941 09/06/10
Joined: Jun 2002 Posts: 131,870 Likes: 41 USA T The_Real_Hawkeye OP Campfire Sage
OP The_Real_Hawkeye Campfire Sage T Joined: Jun 2002 Posts: 131,870 Likes: 41 USA	Originally Posted by sgt217 Originally Posted by The_Real_Hawkeye These little guys have video cams on them. If they were night vision, you could spy on night time activities without being seen. I wonder what their range is. Are you sure they aren't using them now??? Nope. In fact we know they are using them now. Declassified many years ago. In fact we can read about it in the news papers. Ever hear of drones?

Re: Seems Pretty Stable: Why Not A Larger One For Human Transportation? RockyRaab #4388638 09/06/10
Joined: Apr 2001 Posts: 12,895 North Wales, UK Pete E Campfire Outfitter
Pete E Campfire Outfitter Joined: Apr 2001 Posts: 12,895 North Wales, UK	Originally Posted by RockyRaab That depends on whether all four props have one power source/motor or if they are individually powered. If it's the former, it crashes because it has no auto-rotation ability. If it's the latter and one fails, it probably crashes unless it can cut power to the opposite prop and still have enough on the remaining two to make a semi-controlled descent. The difference is plummeting like a dead duck or like a wounded one. Originally Posted by The_Real_Hawkeye No, since there are four propellers which serve partially redundant functions. Lose one, and you still have three propellers serving partially redundant functions. By altering the outputs in just the right way, you could compensate for the loss of one enough for a controlled landing. What I am meaning is that this new design can be thought of as more comparable to a helicopter than a conventional fixed wing aircraft. Loosing a rotar on either this drone or a helo is "not good"; with a helo, you may or may not be able to have a semi controlled crash landing via the auto-gyro, while with the "drone" you may or may not have the ability to run on three engines for a period, but neither craft will glide to any degree like a plane might.. Obviously thats not going to be a show stopper for the new design, in the same way as its not a show stopper for helicopters just a "consideration" thats all... It would be interesting to see if they could intergrate the four rotar idea into a sort of "flying wing" or saucer design although a similar saucer idea was tried by Avro Canada back in the 1950's. More recently there was also the "sky car" (Not sure whether the above photo is genuine or a mock-up for promotional purposes] Last edited by Pete E; 09/06/10. Men of Harlech

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