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Old Dec 03, 2010, 05:03 AM
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JochenK's Avatar
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Luca,

on my Minimum I used plastic screws and small brass tubes glued flush into the mounting holes in the blades. Those brass tubes allow the plastic screws to shear cleanly without ripping the wood of the blades.

Jochen
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Old Dec 03, 2010, 05:56 AM
XavierM
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Congratulations everyone !
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Old Dec 04, 2010, 09:10 AM
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Looks like I might be able to use old health insurance cards to make the new plastic connectors for my blades-ironic, that.
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Old Dec 04, 2010, 09:50 AM
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Italy, Lombardy, Griante
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Originally Posted by JochenK View Post
Luca,

on my Minimum I used plastic screws and small brass tubes glued flush into the mounting holes in the blades. Those brass tubes allow the plastic screws to shear cleanly without ripping the wood of the blades.

Jochen
Great idea!
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Old Dec 04, 2010, 10:05 AM
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So, as there are no threads inside the tubes, do the screws act more like pins?
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Old Dec 04, 2010, 12:42 PM
XavierM
Joined May 2010
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Better with a 1800 mAh battery !

Cierva 30 autogyro Hobby King (4 min 54 sec)
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Old Dec 04, 2010, 03:17 PM
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Angel,

there's a nut at the bottom of the blade. Yes. those screws just keep the blade from moving around.

Jochen
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Old Dec 04, 2010, 05:41 PM
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Canberra, Australia
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Originally Posted by XavierM View Post
Your Cierva flies beautifully!
Did the 1800 mah battery affect the C of G much-did you have to change anything else?I am taking your advice and getting a Rotoshape to learn with.
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Old Dec 04, 2010, 06:18 PM
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really Great!

mine is almost ready for maiden. I just need some finishing and wait for a nice day

I've soldered the landing gear wires, I was sure the stock joint, just a bit of shrink tube, won't survive first takeoff run; so I soldered with the help of some copper wire. I used a 80 W soldering iron to do the job.




I'll go with a 1550 Rhino 2S pack and a 900 KV engine spinning a 10x7 prop; I belive I need more thrust than airspeed, but in case I can switch to a 3S 1550 pack and a 9x6 prop; let's see

Unfortunately I'm in my holydays home right now, and there I have not a scale, so I don't know how much its weights.



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Old Dec 05, 2010, 11:34 AM
XavierM
Joined May 2010
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Please check throws, CG and hub (see post 202) before flight !
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Last edited by XavierM; Dec 05, 2010 at 11:38 AM. Reason: bad english...
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Old Dec 05, 2010, 11:34 AM
XavierM
Joined May 2010
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Quote:
Originally Posted by odonata View Post
Your Cierva flies beautifully!
Did the 1800 mah battery affect the C of G much-did you have to change anything else?I am taking your advice and getting a Rotoshape to learn with.
Odonata,
the 1800 mAh 3 S (+160 grams) battery provides more power than the first one I tried (1550 mAh), longer flights (6/7 minutes). And it gives a better CG (heavier nose) too, the other was a little light (140 grams) in my opinion.
The Rotorshape flies great, the Cierva too but it's heavier. That's why I began with a light simple model !
Rotorshape Style Autogyro (3 min 4 sec)

Good flights !
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Last edited by XavierM; Dec 05, 2010 at 12:19 PM. Reason: Video and text added
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Old Dec 05, 2010, 01:52 PM
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Please check throws, CG and hub (see post 202) before flight !
Yeah my CG looks right even with 2S 1550 Rhino; may be because my tail is light due to pull -pull cabling and ultralight tail wheel. and rotor is checked and 90 deg with mast, pic does not mater, is in a random position
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Old Dec 06, 2010, 03:07 AM
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Australia, SA, Clarence Park
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The Real Deal

Hi guys have just finished reading this thread and found it very interesting. You might be interested in this:
[url]http://www.powerhousemuseum.com/collection/database/?irn=211799
I saw this autogyro recently when I visited the Powerhouse Museum in Sydney Australia. I couldn't get real close as they had it and several other planes hanging from their ceiling, but it was certainly a real eye catcher.
Cheers
Con
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Old Dec 06, 2010, 04:42 AM
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QLD Australia
Joined Oct 2009
268 Posts
The Rotorshape company also make a C30 and a Benson type
2 blade Gyro[LA500];
http://www.laheli.com/web/article.php?kid=10

Interesting to see their C30 design.
It's much lighter, with much longer rotors.

Re;
http://www.powerhousemuseum.com/coll...se/?irn=211799
If you look closely at the windscreen of the back seat, you will see a 'OverHead Control Stick' going up to the head.
This was their early control system[no joystick-simular controls to a hanglider]

And a 'pre-rotator' drive sharft in front of the front windscreen, going up to the head from the motor.
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Old Dec 06, 2010, 05:02 AM
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Quote:
Originally Posted by con244 View Post
Hi guys have just finished reading this thread and found it very interesting. You might be interested in this:
[url]http://www.powerhousemuseum.com/collection/database/?irn=211799
I saw this autogyro recently when I visited the Powerhouse Museum in Sydney Australia. I couldn't get real close as they had it and several other planes hanging from their ceiling, but it was certainly a real eye catcher.
Cheers
Con
This is the Cierva 30 preserved in Museo della Scienza e della Tecnica here in Milan, Italy.
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