I have read much on the new airfoil from the posts... but I am still left
wondering....
what are the net effects of the new airfoil over the raf48?
I have 2 sets of wings. DD and another standard set that I've picked up...
I am seriously thinking about selling them and building out the new airfoil.
Anyone have an idea if the effor would be worth the work?
-Jeff
-Jeff Wilder
CISSP,CCE,C/EH
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>From: "Bob Glidden" <glid...@ccrtc.com>
>Reply-To: KRnet <kr...@mylist.net>
>To: "michaela" <micha...@tonypickering.com>,"KRnet" <kr...@mylist.net>
>Subject: Re: KR> angle of incidence, AS504x
>Date: Thu, 2 Feb 2006 20:45:35 -0500
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>
>I think what Mark L is saying is that if your rear spar is already set for
>the 1 degree there is no real advantage to raising it to 2 degree...
>
>Bob Glidden
>Eminence,Indiana
>KR2S N181FW (building)
>Corvair 110
>glid...@ccrtc.com
>----- Original Message -----
>From: "michaela" <micha...@tonypickering.com>
>To: "KRnet" <kr...@mylist.net>
>Sent: Thursday, February 02, 2006 7:36 PM
>Subject: Re: KR> angle of incidence, AS504x
>
>
>Mark et al.:
>I'd like to follow up on your last comment with a question/clarification.
>
>I've read your thoughts on AOI etc. I believe the project (boat with main
>spars in place) I just purchased was built to original KR2 plans, so I
>assume it is using 3.5degre AOI for wings?. I intend on going with the
>AS504x. I've been thinking I will have to find a way to raise the rear
>spar
>to get close to 1-2degree AOI. Are you suggesting its probably not worth
>the
>effort if my main concern is cruise AOA at altitude of 5-10K.
>
>I'm also leaning toward lengthening the H.S. and increasing area of rudder.
>Project appears past point where lengthening the fuse seems reasonable, so
>I
>am probably stuck with it as is. But I'd like to make whatever other tweaks
>I can to improve stability. Of course, I'll play close attention to keeping
>COG in range...
>
>Anyone's thoughts welcome. Thanks.
>
>Tony
>
>
> > -------Original Message-------
> > From: Mark Langford <n5...@hiwaay.net>
> > Subject: Re: KR> angle of incidence, AS504x
> > Sent: 03 Feb '06 01:29
> >
> > Russ Bell wrote:
> >
> > > What is current thought on AOI for the AS504x
> > > airfoils? Looks like initial calculations were 1
> > > degree. Has that been found to be optimal?
> >
> > All that have been built to data have been 1 degree and nobody's
> > complained
> > yet. My fuselage is right at zero degrees at low altitude wide open
>with
> > one degree. The question might be "how often do we fly at low altitude
> > wide
> > open", and my answer would be almost never. For that reason, I don't
>see
> > a
> > problem with 2 degree eithers, which would give you a slightly better
> > view
> > over the cowling, if nothing else, with little if any drag penalty,
> > unless
> > you spend all of your time doing high speed passes at sea level. On the
> > other hand, if your aft spar is already glued in place, you can leave
>it
> > there and it becomes a no-brainer...
> >
> > Mark Langford, Harvest, AL
> > see homebuilt airplane at http://www.N56ML.com
> > email to N56ML "at" hiwaay.net
> >
> >
> > _______________________________________
> > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> > please see other KRnet info at http://www.krnet.org/info.html
> >
>
>_______________________________________
>Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
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>
>_______________________________________
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