Magni, WOW.........

[Aussie_Paul]

..what more can I say!!!

I have been enjoying training an owner of a Magni M-16 here in Western Australia.
The Magni is a delight to fly. Extremely stable, and the rotor system is the smoothest and most stable that I have flown with a "stiff" mast.

Being a tandem it is not exactly my cup of tea, and I find it more difficult to train with than my usual side by side training machines. However it is a real delight to fly, and the engineering and workmanship is superb compared to the "other company" that I have had dealings with.

Enoughy for now

Aussie Paul.

[quadrirotor]

The price? Paul.

[barnstorm2]

I first rode Greg Gremmingers Magni at Mentone '03.

I was VERY impressed and had the same feeling about the workmanship and stability.

I have not had a chance to fly it since, which is a shame because with my current experience I think I would be able to evaluate it much better.

I would love to own a magni but so far as the forseeable future goes I just don't have the cash for the 'ferrari' of gyroplanes.

[mcbirdman]

Hey Paul - what has been going on with the Little Wing situation? I am thinking you would have posted if you started....... the reason for delay?......... jtm

[rehler]

Paul,

I'd like to make my gyro fly as smooth as a Magni. What do you think makes the Magni fly so smooth?

Is it the long tail boom, compared to most gyro which are much shorter?

Is it the tripple rudder and large HS?

Is it the slick stremeline fiberglass body?

[Udi]

Ken,

Greg G. would be the right person to answer your questions but, from what Greg told me, the Magni rotor is built like no other gyro rotor. I believe helo rotors go through a similar process. Basically, the rotor is heavy and stiff. Every two blades are matched so they are balanced statically and dynamically. The blades are matched to be balanced with the distribution of weight lengthwise and cordwise identical. Also, the blades are smaller, thus turn faster than most. Stiff, fast turning blades, don't require much undersling, and I don't think they have much (if at all). So, unless you can get a pair of Magni blades - there isn't much you can do to mimic them.

I think the Magni is also well balanced in terms of pitch and yaw stability. This is achieved with the right combination of stabs location/size and the airframe MOI. They have their own little trick for coupling the airframe with the rotor with stick friction. Airframe stability is coupled into the rotor, and vice versa.

The Magni is a very well refined gyro. I wish it was less expensive…

Udi

[skyguynca]

I have the plans from Jukka Tervamaki for his gyros and the head and blade system he sold Magni. These are the same ones they use for all their gyros. It is a pretty simple head design and blade construction process.

[barnstorm2]

I read about Mr. Tervamaki in 'From Autogiro to Gyroplane', very impressive. I wonder what he is doing now?

[Vance]

I met Mr. Tervamaki at Air Venture 2004, nice, unasuming man. Very helpful, I believe that you can contact him through his web page. Thank you, Vance

[jos]

Hello,


As far as my experience goes, the actual rotorblades differ totally from the original Tervamaki blades.
I flew with the first modified blades long time ago with Vittorio who teached me to fly. These blades produced lift what was not the case with the Tervamaki design. But still in flight it was impossible to pronounce the word stickschake. After half a day there was no skin left on the knees if you understand what I mean.
Significant changes where made in the blade structure to improve this problem.
Today there are still improvements.
Claming the actual blades are a Tervamaki design is absolutely not correct.
If you like I'll dig up a set and send you for free.


JOS

[automan1223]

I think the reason the rotor system is so smooth, aside from all the obivious reasons regarding rpm and balance, is that the hub bar is technically correct and is forming a coning angle very close to the center of the rotor head. It helps cancel forces very close to the center of rotation as opposed to a hub bar that has some length to it and then forms a coning angle.

I think the machine is near 50 thousand american dollars ?

Is that correct ?

And paul you silly goose, you always want to sit next to your students !

You are a cuddly kind of instructor heh ?

ah so, you are uncomfortable in the back seat ?

Only real instructors like Maxie Wildes teach in tandem machines !!!





Jonathan

[jos]

It is a priceless machine

JOS

[gyrogreg]

Rotor Shake in Magni: See my article, which had been published in Rotorcraft, on my Magni USA FEATURES page of articles. Click on the article: WHY ARE MAGNIS SO SMOOTH at http://www.magnigyro.com/USA/features.htm.

You are correct about the Tervamaki vs. the Magni rotor design. Magni did buy the rights to the rotor and head design, and the head is functionally nearly identical. But, as Magni expanded the old JT5 design to the two seaters, they had to solve a severe rotor shake problem. I believe Vittorio and his two Sons did a lot of testing and evolved a "secret" or proprietary solution. The article above describes principles that are all part of just a good quality rotor. But, Vittorio still teases me that I have still not determined the "secret" of these rotors. Another quality of this design is that it is extremely efficient, even though it turns at somewhat higher RRPM than our normal rotors.

I get inquiries all the time about purchasing a Magni rotor. First, it's obvious from the head and hubbar configuration, that you need more than just the rotor. The system employs a "teeter block" rather than teeter tower plates (for stiffness to eliminate flexing of towers.) Second, Magni will not sell the rotors, or any component that will not be installed on a Magni gyro. There are a number of reasons for this.
One, Vittorio insists that the overall qualities of stability, handling, efficiency, reliability and safety are the product of all components working together for the end result. In otherwords, Vittorio would never agree, for instance, that a Magni gyro owes its stability to the large tail - it is a combination of many things, including aerodynamic and dynamic tuning (he calls it "harmony" between components.) So, any one component, without involved attention to the others, may not result in desired results.

Another reason Magni won't sell components is that he is very proud and protective of the outstanding safety record for his gyros. He would not want any Magni component identified as part of an accident that would blemish this reputation.

Sorry, they are still expensive!

Thanks, Greg

[Aussie_Paul]

...Now come on guys, I don't know if he did "that" twice as well!!!!

Yes, Michael Richardson of Margaret River in Western Australia has soloed his and the first, and only, Magni in Oz.

Well done Michael. He conducted 2 circuits before lunch after a couple of dual circuits. After lunch and a spell to wind down from the "excitment of the morning activities" Michael conducted two left and two right hand circits, with some landings better than others of course.

He then dissapeared for 10 mins when he flew down to the beach to have a look. He arrived back, landed, or was that arrived!!!! and taxiied up to the hanger with a smile on his face. Way to go.

Michael is older than me by 8 years, and has never been involved in any other aviation activity. Michael is not very old of course as I am a young'un at 55!!!!! LOL

A superb effort.

Aussie Paul. enjoying training in another fine gyroplane.

[gyrogreg]

Congrats Michael. You won't sleep for days now! I've seen that malady before!

- Greg