REFLECTOR: Nose OIl cooler scoop flaw

aminetech at bluefrog.com aminetech at bluefrog.com
Mon Oct 12 16:59:24 CDT 2009


Now I understand why I don't see a lip on my NACA.  Mine extends 13" forward of the airfoil.  It doesn't seem all that effective.

John

--- hoffman3 at erols.com wrote:

>Tim Crawford extended the front of the oil cooler scoop on his N3R. Some
>years ago I e-mailed him and asked about it. I don't have the e-mails but
>basically he said he just extended the scoop forward and eliminated the lip,
>which is what I did. Not flying yet so no idea how effective it will be but
>Tim knew his stuff.

Humm, John bought his plane from Tim's estate.

Carl Hoffman

>
>Tony Babb SEFG, 62% done, 78% to go
>www.alejandra.net/velocity
>
>-----Original Message-----
>From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
>Behalf Of Laurence Coen
>Sent: Saturday, October 10, 2009 9:49 AM
>To: Velocity Aircraft Owners and Builders list
>Subject: Re: REFLECTOR: Nose OIl cooler scoop flaw
>
>
>I was the one who added VG's in front of the scoop and I also have a smooth 
>transition at the front.  I don't know if eliminating the lip at the front 
>helps air flow as I did it before flight but  it looks nicer.  The VG's 
>aren't pretty but they are effective.  Mine are made of 3/4" aluminum angle.
>
>Larry Coen
>N136LC
>
>--------------------------------------------------
>From: "Chuck" <c.harbert1 at verizon.net>
>Sent: Saturday, October 10, 2009 11:33 AM
>To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
>Subject: Re: REFLECTOR: Nose OIl cooler scoop flaw
>
>> Awhile ago I think someone said to put VG's in front of the scoop 
>> which I
>> did. It lowered my temps by about 5-10 degF as I recall.
>>
>> Chuck H
>>
>>
>>
>> _______________________________________________
>> 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
>> 
>_______________________________________________
>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
>
>_______________________________________________
>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
_______________________________________________
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




More information about the Reflector mailing list