New Gyro

[Mike Hook]

Has anyone looked at this gyro and do you have any comments on it.

Ken they say their prerotor is good for 300 rpm.

http://www.elaaviacion.com/ela-07_e.htm


Mike

[KenSandyEggo]

Well, unlke a lot of pie-in-the-sky, "Coming Soon" concepts, it looks like thay actually built a few. 300 sounds kind of high, but how would I know? Depends on the system they use. The A&S I took a ride in spun up to about 450 rrpm for a jump takeoff, but then, the blades can be depitched. Too bad they don't have more info on the setup. Looks like a McCutcheon-type hub-bar. They have 16 videos to look at, but I couldn't get any of them to open.

I found where they mention a rotor trim system. From the photo, it may be able to flatten the blades for prerotating. On the same page, it now alludes to 275 rrpm in prerotation, not 300. Looks like a quality machine with a great (expensive) engine.

[GyroRon]

Looks like a copy of a Magni to me.

[jos]

A copy is about the best quote you can give the machine.

JOS

[steveb]

There are some words about the ELA on the NW Gyro Club website:

http://www.nwgyro.co.uk/newsletters.htm

[Mike Hook]

I know this one should be in the enclosed two place but here is a korean raf knock off. http://www.alibaba.com/catalog/10660626/Gyroplane.html

Mike

[GyroRon]

Originally Posted by coal17

I know this one should be in the enclosed two place but here is a korean raf knock off. http://www.alibaba.com/catalog/10660626/Gyroplane.html

Mike

Looks nice, big horizontal stab and Rotax 912S engine. I like it.

[gyromike]

Ken,

I don't see how they can flatten the pitch on the blades for prerotation using a McCutchen hub. But if you look at this picture they are using a shaft drive system for the prerotator.

You can see a shaft running from the rubber prerotator drive wheel (belt drive, whatever) to the front of the engine to a small 90º gearbox. From there, through a telescopic shaft to the rotor head.

I have considered doing the same thing for my next machine. I saw a gyro at Mentone years ago that used the lower unit gears from an outboard to make the 90º turn, but I'm sure that a small gearbox could be found off-the-shelf. It should eliminate the friction from the teleflex cable rubbing inside the sheath.

Might be something for you to look into for your gyro Ken.
I know you are always looking for ways to spend more money!

[Ruidoso Ron]

From their website:

"Their current weight is of 237 Kilos equipped with Broken 912 ULS"

Makes you wonder what it would weigh with a good one?

[Dean_Dolph]

Originally Posted by gyromike

..........But if you look at this picture they are using a shaft drive system for the prerotator.

You can see a shaft running from the rubber prerotator drive wheel (belt drive, whatever) to the front of the engine to a small 90º gearbox. From there, through a telescopic shaft to the rotor head.

I have considered doing the same thing for my next machine. I saw a gyro at Mentone years ago that used the lower unit gears from an outboard to make the 90º turn, but I'm sure that a small gearbox could be found off-the-shelf. It should eliminate the friction from the teleflex cable rubbing inside the sheath..........

Mike, Hank Hinchmann uses a 90 degree gear box on his H-1 Racer. That may have been the one you saw at Mentone. I agree, the use of a 90-degree gearbox is intriguing.

If I were designing a new machine, I would be investigating the use of a prerotator similar to the one that Catfish has and Dave DeWinter modified slightly to use on his Dominator. It does require some room at the front of the engine for the mechanism and the shaft drive. There were rumors that they were getting 300 RRPM. I've got a lot on my plate at the moment but if I think about it I'll see if I have pictures of these machines to post. Maybe MJ can get Richard to supply us with the details.

Dick DeGraw probably has the most elegant one (of course!) on his hybrid Dominator. I say hybrid because it is as much DeGraw as dom! And it may not be his since Carol is the only one I've seen fly it. And then there is the one on Keith Weston's J4B up in Canada........... Some of these devices would make DaVinci proud!

[jos]

Hello,

In Germany the machine is sold without ****pit because the empty weight is over 250 kg's. It is not allowed original because of the weight it also has a very small fuel tank to reach the 250 kg empty rules.
Just an illustration of the website numbers.
A freind visited in Januari an owner with such a machine. He was told on a hot day he could not take of dual.
The tailsection was badly damaged after 25 hours because it hits the runway on landings!!

JOS

[Victor Duarte]

Funny , the word **** is censored, so, Now we all fly in a Dickpit.

[jos]

****pit or cabin but Dickpit?

JOS

[quadrirotor]

c o c k p i t or a pit of d i c k?

[KenSandyEggo]

"Might be something for you to look into for your gyro Ken.
I know you are always looking for ways to spend more money!"

O.K., the cat's out of the bag. A right angle drive is what I'm looking at, but one that is precisely designed for what I want. It's a commercial-grade or industrial-grade box with super-duper hardened gears with something like 8 bearings to handle the load, and that will have a female 3/8ths input and output for my er........off-road vehicle....or was it a machine in my machine-shop? I forget.. The horizontal drive will either be a solid square drive of metal and the vertical will be our regular Wunderlich cable for movement of the head. If precise alignment on the horizontal drive is unable to be achieved for some reason, a short Wunderlich shaft could be used instead. Either way, it gets rid of the heat-producing curve. I didn't realize that some work had already been done on this. Wonder why it never went very far?