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Taildragger CG

 
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dalemed



Joined: 25 Dec 2007
Posts: 46

PostPosted: Wed Oct 05, 2011 4:22 am    Post subject: Taildragger CG Reply with quote

I'm building a CH650 with the taildragger option. Can I expect the empty CG to be more forward, aft or the same compared to a comparable equipped nosewheel CH601/650?

I can probably calculate the difference if I had accurate weight numbers for the nosewheel assembly. I would assume the same weight for the mains, just a different moment arm.

Any info will be greatly appreciated!


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Dale
Zenith Zodiac CH650
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JohnDRead(at)aol.com
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PostPosted: Wed Oct 05, 2011 7:07 am    Post subject: Taildragger CG Reply with quote

The CG has nothing to do with wether an aircraft is a tail dragger or a nose wheel type. do not archive

Regards, John

CH701 - Colorado - Jabiru 3300

Cell: 719-494-4567
Home: 303-648-3261


[quote][b]


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craig(at)craigandjean.com
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PostPosted: Wed Oct 05, 2011 8:38 am    Post subject: Taildragger CG Reply with quote

You don’t think that moving the 40+ pound main gear forward a foot and eliminating the nose gear would influence the CG?

-- Craig

From: owner-zenith601-list-server(at)matronics.com [mailto:owner-zenith601-list-server(at)matronics.com] On Behalf Of JohnDRead(at)aol.com
Sent: Wednesday, October 05, 2011 8:05 AM
To: zenith601-list(at)matronics.com
Subject: Re: Taildragger CG

The CG has nothing to do with wether an aircraft is a tail dragger or a nose wheel type. do not archive

 

Regards, John

CH701 - Colorado - Jabiru 3300

Cell: 719-494-4567
Home: 303-648-3261
 

 

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jlatimer1(at)cox.net
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PostPosted: Wed Oct 05, 2011 1:05 pm    Post subject: Taildragger CG Reply with quote

You're also moving the main gear forward and adding a tail wheel with a long moment arm, which should offset the affects of removing the nosewheel.
Jerry
On Wed, Oct 5, 2011 at 9:36 AM, Craig Payne wrote:

You don’t think that moving the 40+ pound main gear forward a foot and eliminating the nose gear would influence the CG?

-- Craig

From: owner-zenith601-list-server(at)matronics.com [mailto:owner-zenith601-list-server(at)matronics.com] On Behalf Of JohnDRead(at)aol.com
Sent: Wednesday, October 05, 2011 8:05 AM
To: zenith601-list(at)matronics.com
Subject: Re: Taildragger CG

The CG has nothing to do with wether an aircraft is a tail dragger or a nose wheel type. do not archive

Regards, John

CH701 - Colorado - Jabiru 3300

Cell: 719-494-4567
Home: 303-648-3261


[quote][b]


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JohnDRead(at)aol.com
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PostPosted: Wed Oct 05, 2011 3:01 pm    Post subject: Taildragger CG Reply with quote

Guys,
You are missing the point. The CG has to stay within the
design range, certainly moving or removing heavy pieces will affect the balance
of the aircraft. You will have to do what ever is necessary to bring the CG
into design range. The Zenith factory could give you guidance in this
area. do not archive.

Regards, John

CH701 - Colorado - Jabiru 3300

Cell: 719-494-4567
Home: 303-648-3261


In a message dated 10/5/2011 3:06:16 P.M. Mountain Daylight Time,
jlatimer1(at)cox.net writes:

You're also moving the main gear forward and adding a tail wheel with a
long moment arm, which should offset the affects of removing the nosewheel


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