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Need Som Clarification


aerotim
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Just when I decide that the Cozy mkIV is the choice for me, someone tells me they are unstable when flying in rain. Please tell me this is not so. The person who told me this is someone thrying to talk me into an RV, so I question his knowledge in this area. I know a wood prop is not good in rain, but I plan on using a Catto covered in composite. By the way, I am honored to walk amoung you all now. Greeting from Grand Rapids, Michigan. As far as I can tell, I will be the only Canard builder in these parts. Dust, I know you are not far if I need to be worked.

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That is not correct, what he is referring to, I suspect, is that GU canard which has a tendency to lose lift in ran. The Roncz canard has been used to alleviate this tendency. I'm building a Velocity, not a Cozy, but I believe the Cozy plans now specify the Roncz canard shape (see http://canardzone.com/forum/archive/index.php?t-956.html or http://www.cozybuilders.org/newsletters/news_67.html)

 

Here is a FAQ page that discusses this, but the primary point is that although some felt uncomfortable with the slight loss of lift, it was not "unstable" or unsafe, and I know of no accidents due to it.

http://www.davemorris.com/dave/dfly-faq.html

---

Brett Ferrell

Velocity XL/FG

Cincinnati, OH

http://www.velocityxl.com

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...so I question his knowledge in this area.

And so you should. As you can see from the thread that Brett pointed out, the GU canard airfoil suffered only from a loss of lift in the rain I believe. There was NEVER an association with instability and that canard, and many planes are flying with the GU canard today.

 

Here's the active version of the thread Brett referred to: http://www.canardzone.com/forum/showthread.php?t=956

 

The Cozy Mark IV is a great choice in my humble opinion.

Jon Matcho :busy:
Builder & Canard Zone Admin
Now:  Rebuilding Quickie Tri-Q200 N479E
Next:  Resume building a Cozy Mark IV

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Greetings From Kalamazoo!

 

My friend Andy is building a Velocity XL-FG in Plainwell and I have recently started an AeroCanard FG.

You're welcome to stop by either shop (and work ;) ) and we'll try to answer any of your questions.

 

Welcome...

 

Carlos

AeroCanard FG #206

Chp. 4, 5, 10

Carlos Fernandez

AeroCanard FG

Plans #206

Chp. 13

aerocanard.kal-soft.com

Sales & Support

GRT Avionics

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Greetings From Kalamazoo!

 

My friend Andy is building a Velocity XL-FG in Plainwell and I have recently started an AeroCanard FG.

You're welcome to stop by either shop (and work ;) ) and we'll try to answer any of your questions.

 

Welcome...

 

Carlos

AeroCanard FG #206

Chp. 4, 5, 10

Hey Carlos, are you coming to Oshkosh with Andy again this year? We'll be in the same place this year.

 

Brett in Cincy

---

Brett Ferrell

Velocity XL/FG

Cincinnati, OH

http://www.velocityxl.com

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Hey Carlos, are you coming to Oshkosh with Andy again this year? We'll be in the same place this year.

 

 

Plans are to be in Oshkosh for White Knight/SpaceShipOne's arrival on Monday (and still 'till ???). We had a great time in that particular camping spot so if you get there before us save us one. :D

 

See you there! :cool:

Carlos Fernandez

AeroCanard FG

Plans #206

Chp. 13

aerocanard.kal-soft.com

Sales & Support

GRT Avionics

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