I recently purchased this Autogyro kit named Gyro-Star from robotbirds, it is made from EPP foam and uses the electrics and motor that you would use in shock - flyers. It has rudder, elevator, and rotor tilt for aileron control, and as can be seen a 2 blade rotor head.
Anyone had any experience of this model?

Phil

Hi
I bought one of these at the nationals also from Robotbirds. Have tried to fly it but I think I had too much power on take off and it rolled left. No real damage and will try to fly it again soon. Its hand launch only as the undercarriage is so weak. Good luck with yours.

Chas

Do the blades have any stiffeners in them? Or are they flexible?

Mike

The blades are made from EPP they have a 1/2" wide X 1/8" deep spar full length of the blade on the underside, made from some sort of hardish wood but not sure what it is.
As Gyrocopter posted above mine too rolled imediately to the left on the test flight and hit the deck breaking the prop and one blade. This has been repaired & I have set rotor tilt to about 5 Degrees tilt to right as neutral and am awaiting to test again.

Can you take a close up pic of the rotorhead, gimbal and pylon assemblies?

I found the robotbirds website but they dont list this gyro?

If the bugs could be solved it would be an excellent "back seater" bird.

Mike

I've just had a look at the german web site where they used to sell these birds, but they don't do any more. Maybe it wasn't such a good design.

Jochen

Originally Posted by CryHavoc

Can you take a close up pic of the rotorhead, gimbal and pylon assemblies?

I found the robotbirds website but they dont list this gyro?

If the bugs could be solved it would be an excellent "back seater" bird.

Mike

Mike I will take some pics as you request as soon as I get a spare 1/2 hour or so.
I purchased the kit a few weeks back from the Robotbirds stand at a model show at Hop Farm, Kent. It has never been listed on their website as far as I know, and I have done a google search but have not come up with any results so far on this gyro, perhaps an omen......!

Phil

see attached. bought mine from company direct ,6 months ago, but not yet opened the box!!!! Bill

Looks like a symmetrical airfoil which probably isn't the best choice. Also, What is the "pricka rotoru" piece made of? Is it very flexible?

edit: "pricka rotoru" means "rotor bar"

Mike

see http://www.rc-elektro-tragschrauber....aktuelles.html and http://www.rc-elektro-tragschrauber....gyro-star.html

Here are some pics of the pylon assy.
The blades are flat bottom i.e. clarke Y type, the "Rotor bar" is made of a carbon look epoxy glass type sandwich plate material as is the pylon.
I have made an Aluminium rotor bar 1/16" thick of the "springy type" so that I can adjust the negative pitch on the blades if req.

Phil,
You say it rolled to the left?...the cause of this is more than likely the aluminium blade holder..it is bound to be to stiff. Why not try some thin GF?

Just a thought
Rich

I used the 3,0mm? Fibre bar on mine which does flex and it rolled to the left, I suspect the C of G may be too far back.


Chas

Ok,
If the blades a turning anti clockwise and the head is not flexible enough or the blades arent up to speed it will roll to the left....take a look at me testing different heads out...the second 2 blade set up has a stiffish plate, you can see how it rolls to the left..you wont straighten it up no matter how much right roll you may give it

Regards Rich

DAG -R1 Model Autogyro,blade combo experimenting!! (6 min 31 sec)

Originally Posted by SafeLandings

Phil,
You say it rolled to the left?...the cause of this is more than likely the aluminium blade holder..it is bound to be to stiff. Why not try some thin GF?

Just a thought
Rich

It was test flown with the supplied thin G/F plate, I have not flown it yet with the ali plate and looks like it won't be this weekend either after seeing the weather forcast!
Phil

P.S. I will try to get some thinner / more flexible plate if my local model shop supplies it which I strongly suspect does not.
Can you suggest where to get the G/F sheet from, especially the plate I need for the Dag- R2