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  #1  
Old 07-31-2011, 02:33 AM
freetexx freetexx is offline
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Default autogyro: Cloud Dancer II vs cavalon

what we should focus on in terms of price, quality and modern technology?
Rotortec Cloud Dancer 2 vs Auto Gyro Cavalon?

http://www.auto-gyro.com/Cavalon/
http://www.rotortec.com/products.htm

images of cloud dancer:





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  #2  
Old 07-31-2011, 07:37 AM
copter copter is offline
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Default Great Looking

Absolut great looking Gyro, They use the new Weber 135 HP with constant Turbo Charge Engine, my favored is the Silver one. Hope I have the money soon.
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  #3  
Old 07-31-2011, 08:10 AM
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PTKay PTKay is offline
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Can somebody explain to me, how this 4-blade rotor
manages to stay together without any lead-lag compensating device?
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  #4  
Old 07-31-2011, 08:13 AM
ckurz7000 ckurz7000 is offline
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Quote:
Originally Posted by PTKay View Post
Can somebody explain to me, how this 4-blade rotor
manages to stay together without any lead-lag compensating device?
That's a question I have asked many people (including the designer) and never gotten a proper answer which would have satisfied me. Apparently there is some rubber part built into the rotorhead which allows some scissorwise relative motion between the rotors. But I am not sure how. And more importantly, I am not sure how long it is going to hold up at 1200 cycles per minute.

-- Chris.
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  #5  
Old 07-31-2011, 08:44 AM
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PTKay PTKay is offline
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Quote:
Originally Posted by ckurz7000 View Post
...And more importantly, I am not sure how long it is going to hold up at 1200 cycles per minute.
That was exactly my concern.

On the other hand, what could be a possible advantage against
double blade rotor?

Disadvantages are obvious:
difficult to hangar, more complicated, possibly heavier.
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  #6  
Old 07-31-2011, 10:57 AM
ckurz7000 ckurz7000 is offline
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Quote:
Originally Posted by PTKay View Post
That was exactly my concern.

On the other hand, what could be a possible advantage against
double blade rotor?

Disadvantages are obvious:
difficult to hangar, more complicated, possibly heavier.
I could think of maybe some advantages if it really were a fully articulated 4 blade rotor. But with two stacked, semi rigid 2 blade rotors I also fail to see the advantage. Is it inovation for inovation's sake?

-- Chris.
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  #7  
Old 07-31-2011, 12:42 PM
freetexx freetexx is offline
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yes, for me, I am open to select one of them! but must say the price of the CD 2 is not bad! excited about what people will think when it has tried it! how the rotor speed and engine speed controlled? it has not levers such as xenon? (I be trained in xenon)
I really like about CD2 is the dashboard and the engine uses them! come away from the carburetor! and 135hp
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  #8  
Old 07-31-2011, 12:55 PM
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Quote:
Originally Posted by freetexx View Post
I really like about CD2 is the dashboard and the engine uses them! come away from the carburetor! and 135hp
You can get Xenon with glass cockpit, if you want.
Also the engine in Xenon is 125hp, and proven in many copies
as reliable, based on real aviation engine Rotax 912 and Rotax re-drive.

I know nothing about the CD2 engine.
Reliability?
Operation with electric power down?
Dual sparks?
Re-drive?
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  #9  
Old 07-31-2011, 12:56 PM
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Quote:
Originally Posted by ckurz7000 View Post
Is it innovation for innovation's sake?
My thoughts exactly.

Although I like the tanks outside the cabin.
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  #10  
Old 07-31-2011, 01:02 PM
freetexx freetexx is offline
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yes you said something there! I have always wanted to xenon! but if cd2 may have glass cockpit etc in the standard price! then the xenon to be around 20 000 euros extra for the same spec! i like xenon but thought the doors and the way they held up, is a bit weak! someone who has seen CD 2 alive here? the quality is bad?
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  #11  
Old 07-31-2011, 09:15 PM
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Gyro_Kai Gyro_Kai is offline
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Hello,

I recommend, you sit on one and have a look around. The visibility in the CD2 has not impressed me.

Kai.
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  #12  
Old 08-01-2011, 01:23 AM
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Quote:
Originally Posted by freetexx View Post
yes you said something there! I have always wanted to xenon! but if cd2 may have glass cockpit etc in the standard price! then the xenon to be around 20 000 euros extra for the same spec! i like xenon but thought the doors and the way they held up, is a bit weak!
I have no idea about prices.

Regarding door, the Xenon 3 has front door hinges, like a car.
Xenon 2 is no more in production.
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  #13  
Old 08-01-2011, 01:26 AM
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Quote:
Originally Posted by Gyro_Kai View Post
I recommend, you sit on one and have a look around. The visibility in the CD2 has not impressed me.
Cavalon and CD2 have very similar cabins, similar door fixing,
and similar, large wind shield/door frame.

So your remark seems to be valid for both of them.
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  #14  
Old 08-01-2011, 02:18 AM
freetexx freetexx is offline
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yes! Do you have any pictures of Xenon 3 or? have only seen a black xenon 3!
there is something that keeps the door open?
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  #15  
Old 08-01-2011, 02:26 AM
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Quote:
Originally Posted by freetexx View Post
yes! Do you have any pictures of Xenon 3 or? have only seen a black xenon 3!
there is something that keeps the door open?
The black-cherry metlic one:

http://www.rotaryforum.com/forum/showthread.php?t=30196

Yes, a gas spring holds the door open.
You can taxi with door open.

You can also see, that the front wind shield is bent to the sides,
so the front frames are far aside from your front view.

This is also the only gyro cabin on the market, you can step on.
For rotor maintenance and check you don't need any ladder.

And the only one with front floor windows.
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Last edited by PTKay; 08-01-2011 at 02:37 AM.
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