REFLECTOR: FW: Wing root fairings

[lawrence epstein]

I was talking about the fuselage-strake intersection (i said fuselage-wing 
in error).
It might be interesting if we could make a removable fillet and take 
measurements on an already flying  velocity.


What you are describing below is really a "blended wing" such as can be 
found on Alan Shaw's "Atlantica". Blended wings have very low drag 
coefficients.

Larry E.

>From: Hiroo Umeno <humeno at microsoft.com>
>Reply-To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>Subject: Re: REFLECTOR: FW: Wing root fairings
>Date: Mon, 13 Aug 2007 17:06:14 -0700
>
>Very interesting...  How much difference does eliminating these 
>intersections make in reducing drag?
>
>Taking it even further, how about fuselage-strake intersections?  Would 
>flattening that out have any effect in reducing drag?  Think of much 
>thicker, continuously curved baggage area (perhaps slanted, curved side 
>rear windows)?  It would almost seem one could imagine an airframe where 
>the roof and floor line transitions into wing-root without any sharp turns. 
>  That would also increase the interior volume as well, right?
>
>Or do such modification count against you since it reduces the effective 
>"wing-shaped" strake area by extending the fuselage area out-ward?
>
>(Maybe I am inhaling too much "experimental" gas)...
>
>Hiroo
>
>From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On 
>Behalf Of Tony Babb
>Sent: Monday, August 13, 2007 4:14 PM
>To: 'Velocity Aircraft Owners and Builders list'
>Subject: Re: REFLECTOR: FW: Wing root fairings
>
>Has anyone done similar with the canard/doghouse and fuselage intersection? 
>I have a removable doghouse and am pondering how to create a fillet and 
>round out the angle without having a sharp edge- or is  a rounded edge 
>better than nothing?
>
>Tony
>SEFG
>62% done, 78% to go
>www.alejandra.net/velocity<http://www.alejandra.net/velocity>
>-----Original Message-----
>From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On 
>Behalf Of Douglas Holub
>Sent: Monday, August 13, 2007 2:57 PM
>To: Velocity Aircraft Owners and Builders list
>Subject: Re: REFLECTOR: FW: Wing root fairings
>I don't. I'm trying to eliminate all 90 degree intersections. Here's a 
>picture of my upper and lower wing-winglet intersections. I used pour foam 
>to build up the area, then shaped it with sandpaper glued to a 6" PVC pipe, 
>then covered it with two plies of bid.
>
>Doug Holub
>----- Original Message -----
>From: Lawrence J. Epstein, MD<mailto:ljepstein at hotmail.com>
>To: reflector at tvbf.org<mailto:reflector at tvbf.org>
>Sent: Monday, August 13, 2007 2:16 PM
>Subject: REFLECTOR: FW: Wing root fairings
>
>
>Does anyone see any downside to fairing/filling the bottom wing-fuselage 
>joint in an effort to reduce drag?
>
>Larry Epstein
>________________________________
>_______________________________________________
>To change your email address, visit 
>http://www.tvbf.org/mailman/listinfo/reflector
>
>Visit the gallery!  www.tvbf.org/gallery<http://www.tvbf.org/gallery>
>user:pw = tvbf:jamaicangoose
>Check new archives: www.tvbf.org/pipermail
>Check old archives: http://www.tvbf.org/archives/velocity/maillist.html


>_______________________________________________
>To change your email address, visit 
>http://www.tvbf.org/mailman/listinfo/reflector
>
>Visit the gallery!  www.tvbf.org/gallery
>user:pw = tvbf:jamaicangoose
>Check new archives: www.tvbf.org/pipermail
>Check old archives: http://www.tvbf.org/archives/velocity/maillist.html