Showtime 90 4d CG help  
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Showtime 90 4d CG help - 9/2/2008 2:36:38 PM   
Zman39



Posts: 467
Joined: 1/27/2005
From: Central, FL, USA
Status: offline 		Hey Mike,

Although they have been out for a little while, I just recently got the showtime 4d 90 size. I understand this plane can do pattern type flying as well as hovering and such. I am mainly into the hovering and other 3d stuff and was hoping you or someone could tell me what might be the optimum cg for this kind of flying or whether shifting the cg from what it says in manual makes much difference in the 2 flying styles?

Thanks
Mike
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RE: Showtime 90 4d CG help - 9/2/2008 2:43:10 PM   
krayzc-RCU



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From: Kannapolis, NC, USA
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smooth as silk!

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RE: Showtime 90 4d CG help - 9/2/2008 2:56:48 PM   
MMcConville


 

Posts: 2014
Joined: 6/26/2003
From: Champaign, IL, USA
Status: offline 		The CG in the manual is a very good middle of the road CG. My best advice is to start there and then move it to suit your taste.

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RE: Showtime 90 4d CG help - 9/2/2008 3:07:17 PM   
Zman39



Posts: 467
Joined: 1/27/2005
From: Central, FL, USA
Status: offline 		Thanks Mike,

Main reason I asked is I have it set at stated cg but was getting some wing rocking in pure vertical hover. Would you know if a more forward or aft cg might help this?

Thanks again
Mike

< Message edited by Zman39 -- 9/2/2008 3:08:28 PM >

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RE: Showtime 90 4d CG help - 9/2/2008 4:08:36 PM   
MMcConville


 

Posts: 2014
Joined: 6/26/2003
From: Champaign, IL, USA
Status: offline 		Do you mean in a high alpha attitude? In a pure vertical hover, wing rock doesnt really exist. Any wing movement there is simply torque rolling.

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RE: Showtime 90 4d CG help - 9/2/2008 4:26:35 PM   
Zman39



Posts: 467
Joined: 1/27/2005
From: Central, FL, USA
Status: offline 		Thanks Mike,

I guess it was more of a high alpha hover. Any suggestions which way to go with cg to see if I can take this out?

Mike

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RE: Showtime 90 4d CG help - 9/2/2008 4:28:14 PM   
MMcConville


 

Posts: 2014
Joined: 6/26/2003
From: Champaign, IL, USA
Status: offline 		More forward if anything, though it probably wont help a lot. Are you using the SFG? I found they help reduce wing rock quite a bit.

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RE: Showtime 90 4d CG help - 9/2/2008 4:57:17 PM   
Zman39



Posts: 467
Joined: 1/27/2005
From: Central, FL, USA
Status: offline 		By forward, you are referring to making it more tail heavy, correct? Yes, I tried the SFG's and it was still there a bit plus I still havent quite got used to them so they have been off and on a couple times..

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RE: Showtime 90 4d CG help - 9/2/2008 5:06:33 PM   
MMcConville


 

Posts: 2014
Joined: 6/26/2003
From: Champaign, IL, USA
Status: offline 		More nose heavy.

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Mike McConville
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RE: Showtime 90 4d CG help - 9/2/2008 5:19:27 PM   
Zman39



Posts: 467
Joined: 1/27/2005
From: Central, FL, USA
Status: offline 		Okay, I was thinking backwards . Thanks for taking the time to help out.

Mike

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       Post #: 10

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