flexo
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Smallest Flying Machine

Tue Dec 25, 2007 10:45 pm

Ok we all know what are the biggest aircraft ever built as they get plenty of attention in the forums here. But what about the small ones?
What is actually the smallest "flying machine" that was ever able to take a full grown human into the skies (If measured by MTOW or wing span I don't care)?

To make it a little more difficult it should be able to:
- Land and take off without help and on even terrain
- Stay in the air for at least an hour

Any guesses?
 
avioniker
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RE: Smallest Flying Machine

Tue Dec 25, 2007 10:57 pm

The BD5 comes to mind but I'm pretty sure I saw something smaller at Oshkosh in 69 or 70.
 Smile

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BoeingOnFinal
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RE: Smallest Flying Machine

Tue Dec 25, 2007 11:21 pm

This comes to mind:


View Large View Medium
Click here for bigger photo!

Photo © John Myers



Depends on what you defines as "piloted machine" though, but this is the smallest AEROPLANE I have seen. If there are smaller aircrafts out there I am not sure of.
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Starlionblue
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RE: Smallest Flying Machine

Tue Dec 25, 2007 11:40 pm

Pretty sure it's the Cri-Cri:

View Large View Medium
Click here for bigger photo!

Photo © Francois-Xavier Simon
View Large View Medium
Click here for bigger photo!

Photo © Brian Nicholas

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flyf15
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RE: Smallest Flying Machine

Tue Dec 25, 2007 11:50 pm

Although this may not be what you are looking for, I would venture to say that this is the lightest weight flying device that can carry aloft a human and meet your requirements. They are usually in the 40-80lb range...

Powered Paragliders (my next hobby, I think)



There are also strap on motors for hang-gliders allowing for takeoff from a level field with no wind. A skilled hang glider pilot, when assisted by one, and remain aloft for hours and travel great distances...

 
zanl188
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RE: Smallest Flying Machine

Tue Dec 25, 2007 11:53 pm



Quoting Flexo (Thread starter):
What is actually the smallest "flying machine" that was ever able to take a full grown human into the skies

How do you define "Flying Machine"?  Smile

I believe Jet Packs would be the smallest...

http://www.jetpackinternational.com/

They'd have a hard time with the hour duration though... at least the ones flying now....
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avioniker
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RE: Smallest Flying Machine

Wed Dec 26, 2007 1:07 am

BD-5: The single-seat fuselage was miniscule, barely 4 m (13 ft) long. The wing was mounted low and spanned just over 6.4 m (21 ft) and the airplane took-off and landed on tiny, retractable, tricycle landing gear. The factory offered a set of shorter wings (4.3 m/14 ft 4 in span) but almost no one flew with them.

Cri-Cri: The tiny Cri-Cri has a wingspan of 16.1 ft (4.9 m) and is a mere 12.83 ft (3.9 m) in length.

Very close to a draw although the BD had a much larger fuselage volume.

Now if I can only find my 1969 Oshkosh pics. . .

 Smile
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flexo
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RE: Smallest Flying Machine

Wed Dec 26, 2007 1:07 am

Interesting aircraft!
It seems like the Bumblebee needs a lot of speed with that small wingspan or am I off here?

Quoting ZANL188 (Reply 5):
How do you define "Flying Machine"?

I believe Jet Packs would be the smallest...

Actually Jet Packs were the reason I put the one hour duration there...  Wink
 
atct
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RE: Smallest Flying Machine

Wed Dec 26, 2007 4:55 am

I believe according to Guiness it is the Bumblee pictured above. The span is tiny though it might weight more than a Cri Cri.

Looking at the Cri-Cri though I have seen alot of ultralights (microlight in some ares of the world) that are similiar in size and weight. The "Air-Bike" comes to mind. Now if you mean certified aircraft in the FAA sense of the word, then the Bumblebee is your plane.

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KELPkid
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RE: Smallest Flying Machine

Wed Dec 26, 2007 7:10 am

Try the Stits "Sky Baby":

http://www.airventuremuseum.org/coll...on/aircraft/Stits%20Sky%20Baby.asp

:D I don't know how it compares to the Cri-Cri, however it can be legally flown without a multi-engine rating  Wink
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BoeingOnFinal
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RE: Smallest Flying Machine

Thu Dec 27, 2007 12:32 pm

Those machines are freakishly small. I mean, any aircraft that would shift the C of G out of the forward limit when looking forward to see the instruments is to small for me.  Smile

Quoting Flexo (Reply 7):
It seems like the Bumblebee needs a lot of speed with that small wingspan or am I off here?

Well, being a biplane and probably very light, I would assume it is not that bad at all. And without assuming to much, that little thing looks extremely unstable on ground being very tall compared to a small wheelbase and having a C of G quite high. Would be interesting to know the stallspeed though.
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wilco737
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RE: Smallest Flying Machine

Thu Dec 27, 2007 1:28 pm

Wouldnt be a mosquito the smallest flying "machine" Big grin Big grin or even smaller bugs who are able to fly Big grin

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Starlionblue
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RE: Smallest Flying Machine

Thu Dec 27, 2007 2:32 pm



Quoting WILCO737 (Reply 11):
Wouldnt be a mosquito the smallest flying "machine" Big grin Big grin or even smaller bugs who are able to fly Big grin

Biomachine yes. Though of course microbes and viruses also fly. Lighter than air though. Maybe that's cheating.
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wilco737
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RE: Smallest Flying Machine

Thu Dec 27, 2007 2:34 pm



Quoting Starlionblue (Reply 12):
microbes and viruses also fly. Lighter than air though. Maybe that's cheating.

Oh, I wasnt thinking about them Big grin You are right... they are indeed SMALL....

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lehpron
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RE: Smallest Flying Machine

Wed Jan 02, 2008 8:27 am

Viruses can't fl -- wait you mean like airborne bacteria? C'mon, they aren't flying (just falling with style  Wink ) -- and it just isn't voluntary. With a strong enough wind, we could all fly whether we want to or not, but that doesn't mean we're in control of the flight path.

I'd do an emergency fuel dump being airborne for an hour like that.  Wow!
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Starlionblue
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RE: Smallest Flying Machine

Wed Jan 02, 2008 12:48 pm



Quoting Lehpron (Reply 14):
Viruses can't fl -- wait you mean like airborne bacteria? C'mon, they aren't flying (just falling with style Wink ) -- and it just isn't voluntary. With a strong enough wind, we could all fly whether we want to or not, but that doesn't mean we're in control of the flight path.

Fair point. So we're talking lightest controlled flight then. I guess it would be some sort of insect.
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BoeingOnFinal
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RE: Smallest Flying Machine

Wed Jan 02, 2008 3:40 pm



Quoting Starlionblue (Reply 15):
I guess it would be some sort of insect.



Quoting WILCO737 (Reply 11):
Wouldnt be a mosquito the smallest flying "machine"

I think neither fulfill the original requirement:

Quoting Flexo (Thread starter):
What is actually the smallest "flying machine" that was ever able to take a full grown human into the skies

But I might be wrong  Smile
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N231YE
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RE: Smallest Flying Machine

Wed Jan 02, 2008 4:47 pm

All these responses yet one question remains...where in the heck is 2H4?  mischievous 
 
UAL747
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RE: Smallest Flying Machine

Wed Jan 02, 2008 6:13 pm




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wilco737
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RE: Smallest Flying Machine

Wed Jan 02, 2008 6:20 pm



Quoting UAL747 (Reply 18):

Very nice ones! I want an MD11F in that size Big grin

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Devilfish
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RE: Smallest Flying Machine

Thu Jan 03, 2008 4:05 pm



Quoting Starlionblue (Reply 15):
Fair point. So we're talking lightest controlled flight then. I guess it would be some sort of insect.

MAVs qualify under man-made, light, controlled flying machines, while Nano-UAVs are actually insects with some "human intervention." However, they fail under the human payload criterion.  Smile

http://www.flightglobal.com/articles...racts-bids-for-cyborg-insects.html

Quote:
"Proposals for controlling insects using micro-electromechanical systems (MEMS) and turning them into micro air vehicle (MAV) sensor platforms have been requested by the US Defense Advanced Research Projects Agency (DARPA).

[.....]

Insects would have MEMS inserted during their growth cycle, providing for production line-like integration with the creature's biological functions. 'During locomotion [the] insect thorax generates heat and mechanical power, which may be harnessed to power the microsystem payload,' says DARPA.

One goal is for a remote pilot to fly a cyborg insect to within 100m (300ft) of a target. Control could be maintained using pheromones or mechano-sensor activation and direct muscle or neural interfaces."
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flexo
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RE: Smallest Flying Machine

Thu Jan 03, 2008 8:27 pm



Quoting UAL747 (Reply 18):

Very nice videos indeed!

I wonder if any of those could actually carry the weight of an average human (~200 pounds)?
Some of those models are huge!
 
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Starlionblue
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RE: Smallest Flying Machine

Thu Jan 03, 2008 11:50 pm



Quoting Flexo (Reply 21):
I wonder if any of those could actually carry the weight of an average human (~200 pounds)?

Not even close. I would guess even those largest models could only carry perhaps 20 pounds. Just a guess though

BTW the average for humans is way under 200 pounds. I would guess closer to 130-140 pounds for adults.
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flexo
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RE: Smallest Flying Machine

Fri Jan 04, 2008 6:44 pm



Quoting Starlionblue (Reply 22):
Not even close. I would guess even those largest models could only carry perhaps 20 pounds. Just a guess though.

Interesting, I thought it would be more than that considering the wingspan.

Quoting Starlionblue (Reply 22):

BTW the average for humans is way under 200 pounds. I would guess closer to 130-140 pounds for adults.

I guess I should have phrased it "average adult male".
 
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Starlionblue
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RE: Smallest Flying Machine

Fri Jan 04, 2008 11:25 pm



Quoting Flexo (Reply 23):
Quoting Starlionblue (Reply 22):
Not even close. I would guess even those largest models could only carry perhaps 20 pounds. Just a guess though.

Interesting, I thought it would be more than that considering the wingspan.

I've flown some model aircraft. Nothing as advanced as those in the movies, but anyway. They are ridiculously light for their size.

Quoting Flexo (Reply 23):
Quoting Starlionblue (Reply 22):

BTW the average for humans is way under 200 pounds. I would guess closer to 130-140 pounds for adults.

I guess I should have phrased it "average adult male".

Maybe in Germany or Sweden. But globally the average adult male is probably down around 150 pounds. It only takes one trip to Southeast Asia to feel like a giant.  Smile
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