Don't rush you can't quite buy them yet...
http://en.rocketnews24.com/2012/11/10/japan-develops-single-passenger-silent-mini-electric-helicopters-travels-at-100kmh-62mph/
Cheers
TR
A single mini silent Electric Heli
- twinrotor
- Silver Wings
- Posts: 86
- Joined: Sep 2011
A single mini silent Electric Heli
Ensure brain is engaged before the rotor.
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- Gold Wings
- Posts: 169
- Joined: Jun 2009
Re: A single mini silent Electric Heli
Ah so thats where Hirobo went, once the at the forefront of RC helicopters they have all but dissapeared with out dated, expensive and low optioned designs
and this one is no different
ah I should have posted this coment in the fridays joke section, no wonder Japan is on the brink of financial ruin
and thats about where the enquiry line went dead....
Although the rotor head is mostly covered up you can clearly see the lead lag damping is achieved solely by the blade pivoting through a single bolt, friction is achieved by conpressing the grip against the blade surface like how model RC helicopters work..... It would take all weekend to describe the 10,000 reasons why this wont work in large scale
Bahaha so what those blades are silent too, and the gear system sure that wont make noise. My 'silent' electric brushless model with 700mm blade diameter makes so much noise at 6 feet away from you that you cant hear the person next to you talk
Ah huh and when you tell people they are sitting on a lithium polymer battery the size of a car engine they will have no issues given all the positive press these batteries receive
Every once in a while a story comes along about a flying car or helicopter that fits in a briefcase, but they always disappear into the ether never coming to fruition
and this one is no different
This completely Japanese, 10 billion yen (US$125M) project is planned to be completed by 202
ah I should have posted this coment in the fridays joke section, no wonder Japan is on the brink of financial ruin
The helicopter will come in an unmanned type costing 10,000,000 yen (US$125,000) and a model that seats one for 30,000,000 yen (US$375,000)
and thats about where the enquiry line went dead....
They can reach speeds of 100km/h (62mph) running on an electric motor for 30 minutes at a time
Although the rotor head is mostly covered up you can clearly see the lead lag damping is achieved solely by the blade pivoting through a single bolt, friction is achieved by conpressing the grip against the blade surface like how model RC helicopters work..... It would take all weekend to describe the 10,000 reasons why this wont work in large scale
as the silent motor can help workers locate people calling out for help
Bahaha so what those blades are silent too, and the gear system sure that wont make noise. My 'silent' electric brushless model with 700mm blade diameter makes so much noise at 6 feet away from you that you cant hear the person next to you talk
running on an electric motor for 30 minutes at a time
Ah huh and when you tell people they are sitting on a lithium polymer battery the size of a car engine they will have no issues given all the positive press these batteries receive
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- Silver Wings
- Posts: 80
- Joined: Dec 2009
Re: A single mini silent Electric Heli
Agree with most of that except the analysis of the rotor grips
that should be familiar to most people here.. I wouldnt say the single bolt design is for lead/lag, more just the way its designed...Though I might hedge a guess that the reason the rotor head/mast is covered is because they havent designed it yet.
that should be familiar to most people here.. I wouldnt say the single bolt design is for lead/lag, more just the way its designed...Though I might hedge a guess that the reason the rotor head/mast is covered is because they havent designed it yet.
- SPOAR
- Silver Wings
- Posts: 32
- Joined: May 2013
Re: A single mini silent Electric Heli
Too expensive theres far better choppers out there for that price !!
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- Gold Wings
- Posts: 169
- Joined: Jun 2009
Re: A single mini silent Electric Heli
Ah my beloved Bell rotor head
now on the bell although the centrifugal load of the blade is held by the single bolt at the grip end (also called the jesus bolt) the blade is not free to move around this axis (free to lead / lag) in fact the lead lag is adjusted by screwing that little bolty thing at the base of the grip which pushes against the little doodle on the end of the blade root
If the blades were free to move completely you could simply fold it up in the hangar and take up half the space
it is abit easier to see in this picture, net time you see a bell rotor head look really closely at the inside of the grip
http://upload.wikimedia.org/wikipedia/c ... _Italy.JPG
Now an RC helicopter does not have this and the blade is free to lead lag as it pleases. In the picture of the hirobo setup you quite clearly see that the blade is free to move around the 'jesus' bolt like in RC blades, actually the entire blade design including the root of that thing looks exactly like they got a RC blade and put the blueprints through the xerox machine @ 400%
agree its probably not even designed
additionally gee those funky looking landing skids sure would make for an interesting run on
now on the bell although the centrifugal load of the blade is held by the single bolt at the grip end (also called the jesus bolt) the blade is not free to move around this axis (free to lead / lag) in fact the lead lag is adjusted by screwing that little bolty thing at the base of the grip which pushes against the little doodle on the end of the blade root
If the blades were free to move completely you could simply fold it up in the hangar and take up half the space
it is abit easier to see in this picture, net time you see a bell rotor head look really closely at the inside of the grip
http://upload.wikimedia.org/wikipedia/c ... _Italy.JPG
Now an RC helicopter does not have this and the blade is free to lead lag as it pleases. In the picture of the hirobo setup you quite clearly see that the blade is free to move around the 'jesus' bolt like in RC blades, actually the entire blade design including the root of that thing looks exactly like they got a RC blade and put the blueprints through the xerox machine @ 400%
agree its probably not even designed
additionally gee those funky looking landing skids sure would make for an interesting run on
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