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RV-4 Tail Kit Advise

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jhstarn(at)verizon.net
Guest

Posted: Thu Feb 08, 2007 10:23 am Post subject: RV-4 Tail Kit Advise

I understand that several HRII's are flying with the slightly larger RV-8  tail feathers. I have no personal knowledge on that but I'm sure there are HRII  drivers out there that will respond.   KABONG  Do Not  Archive

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fairlea(at)amtelecom.net
Guest

Posted: Thu Feb 08, 2007 10:40 am Post subject: RV-4 Tail Kit Advise

I have built and flown two HRIIs with RV8 tails.  They are easy to build and the vertical surfaces work quite well.  The elevators can be described as adequate but could benefit from a bit more chord, one inch would do.  Having built and flown rockets with the F1 tail I would say that it is my preference.  The vertical surfaces are not quite as tall as the 8 tail but the rudder is larger, the elevators are also larger and provide better control in the flare. Aesthetically, in my opinion, the F1 tail is the most pleasing of all the options.  Many rockets use the RV4 tail but I have not flown one myself.  

   

Tom Martin  

         

  

From: owner-rocket-list-server(at)matronics.com [mailto:owner-rocket-list-server(at)matronics.com] On Behalf Of JOHN STARN

 Sent: February 8, 2007 1:23 PM

 To: rv-list(at)matronics.com; rocket-list

 Subject: RV-4 Tail Kit Advise  

  

     

I understand that several HRII's are flying with the slightly larger RV-8 tail feathers. I have no personal knowledge on that but I'm sure there are HRII drivers out there that will respond.   KABONG  Do Not Archive  

  [quote]    

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Blairclan(at)bigpond.com
Guest

Posted: Thu Feb 08, 2007 12:19 pm Post subject: RV-4 Tail Kit Advise

I have a HR2 with F1 tail (there a few around in this config).  As you might guess, this works well.  My only hesitation, I’m not convinced about the riveted trailing edge on the elevator.  

Many F1 guys complain of high stick force but you don’t here that from the HR guys with folded trailing edges. Of course, the control surface is larger too but I suspect the trailing edge shape to be contributing.  

The F1 tail is a good option and probably the best option.  

Good Luck  

   

Tony   

   

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Rainair

Joined: 13 Feb 2007
Posts: 10

Posted: Thu Mar 08, 2007 9:37 am Post subject: Re: RV-4 Tail Kit Advise

 	  fairlea(at)amtelecom.net wrote: 	
		  I have built and flown two HRIIs with RV8 tails.  

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Good evening,



i will buy the RV8 Empenage to build the HR II.



If there other dimension about the RV4 Tail to assemble this at the fuselage ?



I will no problems to build the HRII.. i think the RV8 Empenage works better..

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