Anyone have a good source for Hirobo Vertol information. I interested in how they accomdated the normal (in real helos) mixing linkages for control etc. Do they use mechanical mixing or relay on the TX? Any on-line manuals for this bird anywhere?
How come in the 50's/60's we could make anything fly? Was the air thicker?
01-22-2003 Over year old.
Hotwings Key Veteran Location: Florida, Port Charlotte and West Palm Bch.
get in touch with SENECA i've seen him fly his vertol!
Please cancel my clearance, I have the field in sight.
01-22-2003 Over year old.
Phil Cole Veteran Location: Redwood City CA
Hirobo use mechanical mixing. Just about every degree of freedom in the swashplates gets input from at least two servos. My hat is off two whover got all the mixing ratios to work.
01-22-2003 Over year old.
conyou Heliman Location: Cambridgeshire, UK
It really is a fantastic helicopter, i would love to have one but its a bit out of my price range. I was wondering can you fly it around or can it only hover?? tried any 3d stuff with it ??? the blades look really close to each other in the pics, are they ???
01-22-2003 Over year old.
the Wasp rrProfessor Location: Vt
I would love to see a Hirobo Vertol do 3D,,, that would be the up-most
Jim
01-23-2003 Over year old.
Phil Cole Veteran Location: Redwood City CA
The blades mesh between each other. If the main drive belt breaks, they will hit.
I've never seen anyone do more than hover one in person, but I do have an old IRCHA tape showing one in forward flight, and doing touch-and-gos. There is a rumour that someone looped one once, years ago.
01-23-2003 Over year old.
KC Elite Veteran Location: WA
pavelow, LOL whats that thing in the picture???!!!
did you know Lamborghini once made a heli? no kidding. and they used to make farm tractors before cars.... anything is possible
it's ovious what it is!!
it's a pelican! just kiddin' but it is sure cool looking!
01-23-2003 Over year old.
the Wasp rrProfessor Location: Vt
r60fan,,, I think saw the Lamborghini heli on TV,,, the one I saw was a 1 place seater,,, the pilot was teetering the little heli on a white picket fence..
Jim
01-23-2003 Over year old.
Dyehard Veteran Location: Cedar Bluff, Va.
I saw one flown several years ago at a fun fly in NC. The pilot not only flew it, when someone in the crowd yelled "do an auto", he emmediatly hit throttle hold and set it down at his feet. After seeing helis with tail booms all these years, it was very easy to get confused about what direction it was going while it was several hundred feet up.
01-23-2003 Over year old.
spyder354 Senior Heliman Location: Las Vegas, NV
Porsche used to make farm tractors too.
01-23-2003 Over year old.
pave-low Heliman Location: Omaha
The bird is a Beta 200The helo is a Beta 200. Really a cool ship with some impressive performance for a "little bird". Unlike the outrageous claims of some of today's VTOL wanna-be makers (Solotrek or Moller Carter Copter) this thing looks and actually flew a good basic envelope. 125MPH cruise 150MPH max 1500 fpm climb 400 mile range on 42 gallons of gas. The disc loading was in the 2.5 lbs. range (so you could auto very well). They built some of the 2 seaters and had designs for a 4 and 6 place exec model but I don't know if they ever built them. The cost was supposed to be about that of a single fixed wing (like a Cessna 182). I am trying to track down more technical info. I have to think though you might get rather "beat up" flying it. Maybe their different method of balancing the blades solves some of these tandem issues (balances from the roots I think).
On the plus side Tandems are very stable.
On the 3D Vertol. Never thought of that. If you changed the belt to an inter-link shaft like a real Chinook you might have something. I don't know if the blades would flex enough to hit the body though? They are mounted at different heights to avoid the Meshing potential. You might also run out of degrees of control (given all mechanical the mixing) to change enough pitch.
And you thought McCulloch only made chain saws:
How come in the 50's/60's we could make anything fly? Was the air thicker?
01-23-2003 Over year old.
DangerousDick Veteran Location: Cheshire, England
I've 'thrown together' a twin rotor model out of two Robbe Futura's - no mechanical links to the heads though, just a lot of mixing my the 10X.
I've only hovered it about so far and every time I try and 'push' it, it gets a bit hairy. I've got a couple of gyro's to fit, when I get some time, to see if it balances things a little, and hopefully then start to really play.
I've kept the flybar's, and the spacing between the front paddle and the rear blade is around 7mm so the mesh looks pretty neat in the air. I have got a taller main shaft for the rear rotor but haven't got around to fitting it yet so at the moment the two are on the same plane.
Off course the real problem is that if I can eventually get this thing flying properly then I'll have to build myself a decent body for it - that one in the first post looks really coooooool .
01-23-2003 Over year old.
melsman Senior Heliman Location: Atascadero, CA
Hi Pave-low,
Here is a link to the Hirobo drawings for their CH-46 (Vertol).
So, were you (or are you) associated with the Air Force Pave-low squadrons? Just curious.
Ashley
01-23-2003 Over year old.
sincity Veteran Location: Pasco, WA
Hey DD,
Throw some pics up in your gallery of that twin rotor Futura. Love to see it!
Shawn
01-23-2003 Over year old.
DangerousDick Veteran Location: Cheshire, England
My Gallery was created back in the 'freebie' days and I've never had the chance to pay up to use it again so any pics will have be supplied over E-Mail I'm affraid (not complaining about the charge, and fully understand its significance, please don't turn the thread into a war over the fees ).
01-23-2003 Over year old.
Carps Veteran Location: Caterham, Surrey, England
DD - sounds really cool - email me the pics and I'll put them up on my site and insert them on RR.
67 911 stretched the wheelbase to post 69 (vintage legal for 1995 rules with right wheelbase to make a 73 rs copy, not very vintage looking though) 928s4 fronts, 930 fronts for the rear...plow you through the windshield on a good stop.
340hp 3.4L , 2000lbs, took 24V to turn over the crankfire beast and forever to warm it up. helluva tractor!!! pulled 140mph in 4th gear up Snoqualmie Pass (big curved road, no it wasnt legal)
).
