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Jan 20, 2013, 09:49 PM
Registered User
I remember with my first autogyro the infamous Hobby King Cierva C30 I made my own blades.By the time I got the CG correct the blades that came with the kit were not up to the task,,,flew too fast,,,not enough area and cord of lift. I made longer and wider blades amongst other mods to make it work. I used the blade plan from the spiro I found on this forum. I used 1/4 inch balsa sheet. I used plumbers solder as a weight near the leading edge at the tip. I balanced the blade length wise with pins at either end of the blade to find the CG. That is where I cut the blade holes. Anyway it was a fun project. It isn't very hard and does not take as long as you may think. Balance Balance Balance!!!
Last edited by TURBOOMNI; Jan 20, 2013 at 10:09 PM.
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Jan 24, 2013, 04:16 AM
Registered User

Auto-G Parts now in DE Warehouse


Hi all,

as just discovered, HK lists now all replacement parts in de DE Warehouse (including blade grips and main blades).
At the moment all parts are available and even with buddy codes:

Blade Grip
Main Blade
Rotor Base (Head)
Head Button
Propeller
Landing Gear

Cheers, Ralph
Jan 24, 2013, 05:55 AM
ɹǝʎןℲ ǝıssn∀
taz101's Avatar
Quote:
Originally Posted by racs
Hi all,

as just discovered, HK lists now all replacement parts in de DE Warehouse (including blade grips and main blades).
At the moment all parts are available and even with buddy codes:

Blade Grip
Main Blade
Rotor Base (Head)
Head Button
Propeller
Landing Gear

Cheers, Ralph
Thanks for that!!
Just checked, all parts now in the Aussie warehouse as well.

LURCH
Jan 24, 2013, 06:50 AM
RC Guy Having Fun!
Aeronut41's Avatar
Wish they would start stocking spare parts in the US warehouse! Best, Aero
Jan 25, 2013, 12:48 PM
Bleriot's R Us
xairflyer's Avatar
Just got mine, hope top test fly on Sunday, what is the neutral setup for the head does it sit a little to the left or right when trimmed out in flight (viewed from behind)
Jan 25, 2013, 01:48 PM
Do you see what I see?
rcoconut's Avatar
Good luck with your maiden!!! Hope it goes well!

Let me know if you hand launch or do a rolling takeoff as well as the wind conditions if you don't mind.

My second one just arrived but it's rain for the next 3 days!!!!

Wish I could help you with an answer, but mine only made it a few feet off the ground before rolling in the dirt due to lack of rotor blade speed, rookie gyro pilot!!
Jan 25, 2013, 01:51 PM
KlonWarz
Is there a thread for balancing this kind of rotor blades?
Jan 26, 2013, 08:33 AM
Bleriot's R Us
xairflyer's Avatar
Quote:
Originally Posted by rusty case
Is there a thread for balancing this kind of rotor blades?
This is how I done it with an old brushless out runner.
Just take the bell off the motor and you have a twin ball bearing shaft with a ready made mount to screw to your bench.
To make the bearings run really free inject a little bit of white spirits into the bearing (think they call it mineral spirit in USA).

Just make sure it is a 3mm shaft motor not the 1/8" size (3.17)

The 3mm shaft is a nice tight fit on the AUTO G hub. I added clear tape to the light blades and eventually the blades will stay where you put them.
Jan 26, 2013, 09:14 AM
KlonWarz
Tnx xairflyer

Do you weigh the blades for common weight, first?
rc
Jan 26, 2013, 12:02 PM
Bleriot's R Us
xairflyer's Avatar
Yes the snag is though in order to do the whole balance thing properly you need to find the CG of each blades and get them all the same. But is it really needed with something like this?

I think normal blade balancing as shown above is all that is required, and I bet loads of these are put together and flown without even doing that.

I decided to paint the mast as I think just the wood makes it look a bit un-finished.
Jan 26, 2013, 12:25 PM
KlonWarz
Yes, the mast looks far better, painted!

Well, I'm just thinking if all is balanced very well there will be less wear in the long run, and perhaps better handling/more power available...

and it costs nothing but time to fine-tune a plane.

Win Win!
:-)
Jan 26, 2013, 12:41 PM
Registered User
I balance autogyro blades like heli blades. I first check and make sure the lengthwise cg of all three are the same. Then mark the spot on all three. If not correct. Then on my heli blade balancer I weight them to find the heaviest blade of the three. Then balance the two lighter blades to the heaviest one. All weight is put on the CG marked before. I wouldn't put any weight at the tip to balance,, only on the CG point. It really doesn't take much time .
Jan 26, 2013, 01:15 PM
Registered User
I am sure many just put the blades on without any balancing and it works fine. But I bet even with the low headspeeds that if everything is nicely balanced there maybe an improvement with a smoother machine and perhaps better headspeed and better acceration of the head in wind. I do know it is not good on a rc helicopter to not care about the cg and put tape at the end of the blade to balance. When run up they will still be out of balance.
Jan 26, 2013, 05:44 PM
Do you see what I see?
rcoconut's Avatar
Quote:
Originally Posted by xairflyer
I decided to paint the mast as I think just the wood makes it look a bit un-finished.
Looks nice!! Did you use spray or brush to paint it white, what a big difference! Looks a lot better!
Jan 26, 2013, 06:55 PM
Bleriot's R Us
xairflyer's Avatar
Quote:
Originally Posted by rcoconut
Looks nice!! Did you use spray or brush to paint it white, what a big difference! Looks a lot better!
I would have liked to have sprayed it, and did remove the servos and head, but with that foam you need to be careful and I did'nt have any enamel based spray.

So I first brushed on a coat of white wood primer then brushed on some white gloss.
The laser cut burned edges are always a pain to cover with white, probably doing it blue or even black would be easier.


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