Seating!!!!!!!!You gotta get a better seat though!!!!!!!!!!!!!!!!!
Stan
If there is a cure for this, please don't tell me about it!!!
02-02-2008 12:54 PM
blade3d Key Veteran Location: New Jersey
Insane
Blade3d
02-04-2008 08:58 PM
alchemist Senior Heliman Location: London,UK
That's an accident waiting to happen
To every action there is always opposed an equal reaction
02-04-2008 11:01 PM
the Wasp rrProfessor Location: Vt
yee-up, not impressed at all, you tip that thing over your going to loose an arm or worse..
I truly hope you don't get hurt !!
Jim
Jim the wife wont let me get a Monkey !!,,, damm, can't have anything
02-05-2008 12:10 AM
heli_headcase Veteran Location: Hovering around Atlanta
Cool but...Dangerous as hell. Cyclic Control is done entirely via weight shift, poor control authority. Rotor blades are rigid and fixed pitch providing zero means of recovering from an engine failure (can't perform an auto), just like the Airscooter. Yaw control could be easily overridden by a strong cross wind. Better have a ballistic parachute on board if over 10ft high although it can't save you at that low an altitude. Death trap...
WTF!!!!! You guys suck! That was the coolest thing I have ever seen. Of course it's not practicle transportation but they did it. That's the problem with most of us Americans these days......No inivation unless your job requires it! Looks like we need another world war to get our brains going again and make another great leap in imagination and technology. My thanks to all the backyard tinkerers and everyone else who can appreciate the level of enginuity and guts these types of accomplishments require. Everyone else.....just keep buying into whatever boring worlds you have made for yourselves and keep the dimmer on low.
enginuity,,,, what,,, think again, they got this idea from a 15 y.o. cartoon called "Inspector Gadget",,
that toy is more dangerous than a gun..
Jim
Jim the wife wont let me get a Monkey !!,,, damm, can't have anything
02-12-2008 08:23 PM
heli_headcase Veteran Location: Hovering around Atlanta
Let me say this about that...This coaxial heli strikes a particular nerve with me because...
Back in the early 80's I had the hots to build almost exactly what this subject is focused on - a single place, "back-pack" helicopter. I went through many design ideas of all sorts of rotor configurations and logic said to place the rotors on the same axis.
I drew a preliminary design for the control system, roughly calculated engine power requirements and blade length. Did some research at the National Air and Space museum in Wash DC and discovered an experimental heli called the "Hoppy-Copter". It was foot launched, no auxiliary landing components, had a twin cylinder, two-stroke, ~10HP engine. The US Army contracted the development as a simple observation platform that was easy to deploy. A side note about the safety read something like: "The pilot's legs were a very weak part of the design..."
When considering this vehicle I had yet to "master" RC heli flight as I completely gave up learning some 7-8 years earlier. But with this new project digging at my brain, flying RC was extremely important because a 1/4 scale model needed to be test flown and proven before wasting... er... spending time with the full-scale version. I did get back to RC heli's solely because of the idea that I wanted to develop and so goes why I'm back into them again.
But here's the irony of my situation! BECAUSE I now had some real life (model) helicopter time under my belt and because I started to understand just how critical the design, materials and overall engineering of these whirly-beasts was, I didn't see any possible way to build something safe enough for man-carrying operation. Fatigue and component failure are always waiting just around the bend. It takes high-level engineering and finite element analysis to come even close to designing something worthy of a test pilot to sit inside. You think I'm kidding? Do a search for "Revolution Helicopters" and "Mini-500" and "Dennis Fetters" to see how what looks like a correctly engineered helicopter can bite you and your friends in the @ss.
So yeah, I still think this "Head Copter" is dangerous as hell.
Jim the wife wont let me get a Monkey !!,,, damm, can't have anything
02-13-2008 12:04 AM
heli_headcase Veteran Location: Hovering around Atlanta
Thanks for the links!
Quote
strap on model
Yeah, that's it!!! I wonder who played the "crash test dummy"?
HHC
So many heli's - too little time...
02-13-2008 12:22 AM
blade3d Key Veteran Location: New Jersey
Retarted
Blade3d
02-13-2008 04:54 AM
Jimmi Key Veteran Location: Southern Ca. U.S.A.
As long as you keep a c0oL head you'll be fine I can't believe I just said that Where did I hear this saying...it dices, it slices............. Jimmi
A computer once beat me at chess, but it was no match for me at kick boxing
02-13-2008 05:23 AM
heli_headcase Veteran Location: Hovering around Atlanta
More...I wanted to make a clean break from this subject but can't seem to do it. SO - Here's a thread on a full-scale home-built heli forum related to coaxial back-pack heli's. VERY interesting discussion happened and lots of thinking. Oh yes, many pictures too
you know I would think flying that thing would be much like sticking your arm in a cage and tickling a tiger's foot,, you may get away with it 2 or 3 times or even 30 or 40 times if your quick enough, but why risk your arm and all that pain
Jim the wife wont let me get a Monkey !!,,, damm, can't have anything
You gotta get a better seat though!!!!!!!!!!!!!!!!!
Stan
I can't believe I just said that
