@bigskip2121 Not only are they synchronized, but the twin masts are very slightly tilted away from each other. As one rotor reaches the transverse position and just barely passes over the other mast, the other rotor reaches the longitudinal position, clear of the first rotor. Lather, rinse, repeat. With no power going into a tail rotor and the lift of the mains only slightly degraded by inter-meshing and tilting, more lift is available for a given power input to the system.
Thanks for this vid of a very remarkable aircraft. As there are only thrirty or so of these machines on the planet, seeing one in person is pretty unlikely.
I saw one of these for the first time yesterday didn't know what it was I thought it was a Cobra at first sight, which would be weird as I live in an area where there are none, and I was looking at it as flew directly over me so all I saw was the under carriage but then I noticed the weird rotors.... kinda weirded me out as I can usually identify anything flying in my area! very interesting aircraft!
@unapro3 Oh, now I understand what you meant. I went and saw one doing logging work, and the fuselage was about 4 ft wide, but then you add in controls, and it could get fairly tight.
They are at an angle (canted so the centre of the systems is higher than the outsidde they are connected via a gear box which ensures both rotors turn at exactly the same speed. More obvious here - watch?v=WLkN0cnOO6w
Saw one of these suckers transiting through Geraldton , Western Australia 12months ago. Quiet a unique sound. Can they suffer from ground resonance like a conventional helicopter?
@SoftwareExplorer do you think I was talking about the weight of the pilot or the width of the pilot. Have a good look at the video, especially at the end when the helicopter takes off and you can see from underneath how skinny the helicopter is then think about my comment. Did you have a look? Now, do you think I meant weight?
Very nice video !!!
@bigskip2121 Not only are they synchronized, but the twin masts are very slightly tilted away from each other. As one rotor reaches the transverse position and just barely passes over the other mast, the other rotor reaches the longitudinal position, clear of the first rotor. Lather, rinse, repeat. With no power going into a tail rotor and the lift of the mains only slightly degraded by inter-meshing and tilting, more lift is available for a given power input to the system.
I saw one in person once, you can barely hear them coming at all, amazingly quiet aircraft!
even though i know how it works, looking at it just fucks with your head
Thanks for this vid of a very remarkable aircraft. As there are only thrirty or so of these machines on the planet, seeing one in person is pretty unlikely.
I saw one of these for the first time yesterday didn't know what it was I thought it was a Cobra at first sight, which would be weird as I live in an area where there are none, and I was looking at it as flew directly over me so all I saw was the under carriage but then I noticed the weird rotors.... kinda weirded me out as I can usually identify anything flying in my area! very interesting aircraft!
Legal parabéns
yep, it is based on Anton Flettners designs.
@unapro3
Oh, now I understand what you meant. I went and saw one doing logging work, and the fuselage was about 4 ft wide, but then you add in controls, and it could get fairly tight.
yes, mechanically, the both rotors are always running 90 degrees or perpendicular to avoid smashing each others.
I'd like to build one RC. But I am not sure I would put polka dots on it?
seems like flettner fl 282 during wwii
A single engine and a synchronized transmission.
they are geared to each other and are a rigid rotor head design
They are at an angle (canted so the centre of the systems is higher than the outsidde they are connected via a gear box which ensures both rotors turn at exactly the same speed. More obvious here - watch?v=WLkN0cnOO6w
Saw one of these suckers transiting through Geraldton , Western Australia 12months ago. Quiet a unique sound. Can they suffer from ground resonance like a conventional helicopter?
funny one
Cool a friend of mine at work says his Dad owns one of these, for Logging..
@SoftwareExplorer do you think I was talking about the weight of the pilot or the width of the pilot. Have a good look at the video, especially at the end when the helicopter takes off and you can see from underneath how skinny the helicopter is then think about my comment. Did you have a look? Now, do you think I meant weight?
@unapro3
It can lift 6,000 pounds in addition to it's weight of about 4,000. I don't think you're going to find a 6,000 pound pilot.
I see you like helicopters
yep
Man könnte Meinen es Startet ein Bell UH1D. Es fehlt nur das Surren vom Heck Rotor.
Is it safe to approach this egg beater when it's spooling up?
only if you dont do it from the SIDE !
The new kolibri?
@bigskip2121 very reliable cogs
shit yep
this supposed to be prevalent set- up for helicopters but they are not.
symmetry08 prevalent?
why don't the multi rotors just go up through the same shaft like normal counter rotating heli's
i can't see an advantage to doing it this way
Robert Condon ... a coaxial rotor system can get into vortex ring state, a sync rotor (this type) can not.
Saw one of these babies at the Gay Pride Parade in San Francisco !!
kneedeepinbluebells ... yep, figured you would attend
No fat pilot's need apply....
hahahahahahahahahahah yep it is skinny
You sir, have little mechanical aptitude
no it is not
looks like a gay helicopter
keith rice ... all helicopters are the same sex