Durafly AUTO-G Gyrocopter - Page 168 - RC Groups
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Sep 05, 2017, 11:33 PM
Zippa Flippa
nebbian's Avatar
Quote:
Originally Posted by britinoz
The blades must be secured rigidly to the plate correctly spaced. If they are not spaced correctly ...then you will be wasting your time.
as you see in the video ..its not rocket science ..but just takes a little time.
Unballanced blades usually shows up in the U/C dancing around and the model just doe's not handle all that good.
Happy landings
Chris...
How do you space them correctly? Even a tiny fraction of a degree off on the blade angle results in a massive imbalance of the whole rotor. I thought that the blades would find their own (correct) position based on centrifugal force, the same way that helicopter blades work.
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Sep 06, 2017, 03:22 AM
Registered User
britinoz's Avatar
As I have not seen the blades or center plate of the Auto G ...I can't help you BUT I have balanced the blades of the Super G and I am told that they are the same.
So it requires the blades to be bolted firmly to the hub (I believe there are two holes in each blade?) and that will make each blade positioned 120 deg apart.
The force exerted on heli blades is far greater than that on an autogyro as heli blades are powered to around 2000 rpm where as the autogyro blade only turn at between 80 and 120 rpm.
I'm sure you must be able to secure the blades firmly for balancing.
Chris...
To follow up on this subject. Just had a look at the blades and hub on the auto G....two bolts on each blade ...so why can't you hold the blades firmly in position ?
Last edited by britinoz; Sep 06, 2017 at 03:29 AM.
Sep 06, 2017, 03:26 AM
Registered User
Jockadopolus's Avatar
Quote:
Originally Posted by nebbian
How do you space them correctly? Even a tiny fraction of a degree off on the blade angle results in a massive imbalance of the whole rotor. I thought that the blades would find their own (correct) position based on centrifugal force, the same way that helicopter blades work.

Try this method rather than cocktail sticks It works for me
Joe

https://www.rcgroups.com/forums/show...postcount=2292
Sep 06, 2017, 04:17 AM
Registered User
britinoz's Avatar
Joe ..I see that BUT surely the two bolt method should be OK for balancing
Chris...
Sep 06, 2017, 04:42 AM
Registered User
Jockadopolus's Avatar
Quote:
Originally Posted by britinoz
Joe ..I see that BUT surely the two bolt method should be OK for balancing
Chris...
Yep two bolts more accurate
My mod is more for transportation and hopefully save the blades in a rollover
Joe
Sep 21, 2017, 08:59 PM
Registered User
anyone come up with a good replacement prob for theres keeping mine all stoke still but need new prop
Sep 21, 2017, 10:26 PM
Zippa Flippa
nebbian's Avatar
Following up on the blade balancing, my heli mate balanced the blades individually on his balancer (using packing tape on the underside of the blade), and it's much better now. I was surprised at how little tape it required.
Sep 22, 2017, 01:01 PM
Registered User
Quote:
Originally Posted by kaveman63
anyone come up with a good replacement prob for theres keeping mine all stoke still but need new prop
Do you know the "Search this thread" function?
https://www.rcgroups.com/forums/sear...946&query=prop
Sep 22, 2017, 03:51 PM
Registered User
Quote:
Originally Posted by Ralf W.
Do you know the "Search this thread" function?
https://www.rcgroups.com/forums/sear...946&query=prop
Didnt yeild any results with that search

But, I am using 10x4.5 hobbyking slowfly, 2 blade.
https://hobbyking.com/en_us/catalogs...sult/?q=10x4.5

Prop tips go a little closer to the ground but havent had any strikes. It flies anyway.
Sep 22, 2017, 04:16 PM
Registered User
Quote:
Originally Posted by RetepTrun
Didnt yeild any results with that search

But, I am using 10x4.5 hobbyking slowfly, 2 blade.
https://hobbyking.com/en_us/catalogs...sult/?q=10x4.5

Prop tips go a little closer to the ground but havent had any strikes. It flies anyway.
Sorry! Please go to the top of this page and click the button "Search this thread" and enter "prop". You will find about 192 matches and
reports of success with 2 blade props of 10x6, 11x3.8, 11x7, 11x8, 10x4.7,...
Sep 25, 2017, 09:31 AM
Build, crash, repeat...
lee292a's Avatar
The Auto-G isn't picky about props. I can vouch for the GWS 10x6 and 11x7 which I have used successfully. IIRC, the 3-blade is somewhere around a 10x8...


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