REFLECTOR: Reflector Digest, Vol 108, Issue 5

Tue Sep 2 17:59:21 CDT 2014

I'm pleased with mine.

Sent from Rene's iPad. A pleasure.  Go Apple.

> On Mar 4, 2014, at 1:37 PM, Don Johnston <numa at comcast.net> wrote:
> 
> Nick,
> 
> Got any pictures of your duct and alternate air door?
> 
> -Don
> 
> 
>> On Tue, Mar 4, 2014 at 12:07 PM, Jones Nick <nick.jones at volvo.com> wrote:
>>  I installed a NACA scoop from a Lancair IV in the bottom cowl with a K&N air filter from a Dodge Viper with plumbing going up to the intake on the engine. I have a Cirrus SR22 alternate air door at the intake if things go wrong. I can't speak to how successful it is because I have not flown it yet, but it is installed in a high pressure area and it works good on the Lancair.
>> 
>> Nick and Connie Jones
>> Velocity XL-RG
>> N10CN
>> -----Original Message-----
>> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of reflector-request at tvbf.org
>> Sent: Monday, March 03, 2014 19:58
>> To: reflector at tvbf.org
>> Subject: Reflector Digest, Vol 108, Issue 5
>> 
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>> 
>> Today's Topics:
>> 
>>    1. Re:  Air intake (Don Johnston)
>>    2. Re:  Air intake (Brett Ferrell)
>>    3. Re:  Air intake (Mike Dawson)
>> 
>> 
>> ----------------------------------------------------------------------
>> 
>> Message: 1
>> Date: Mon, 3 Mar 2014 12:36:07 -0600
>> From: Don Johnston <numa at comcast.net>
>> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>> Subject: Re: REFLECTOR: Air intake
>> Message-ID:
>>         <CALD29ipyRcCd7LpQfi6L_Q3mXTw-DT=X9vQd646zL+152tTY_Q at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>> 
>> I can't speak to the benefits of a scoop, but Malcolm told me once not to
>> center it under the cowling. He said that debris from the nose wheel will
>> get flung up into it.
>> 
>> 
>> On Mon, Mar 3, 2014 at 11:11 AM, Jack Prock <jackprock at wavecable.com> wrote:
>> 
>> > Hi,
>> >
>> >
>> >
>> > I would like to know if anyone has any thoughts on air intakes. I am
>> > getting down to the last
>> >
>> > few items on my list before flight and one thing I was thinking about was
>> > to put in an air intake
>> >
>> > scoop under the engine cowling. Something along these lines:
>> >
>> >
>> >
>> > [image: NHRA Pro Stock Composite Hood Scoop 100-8506]
>> >
>> >
>> >
>> > Now my question, is for the people that have put an external air intake on
>> > the plane.
>> >
>> > Do you get a boost at higher altitude because of the ram air effect? Does
>> > the drag of
>> >
>> > the scoop outweigh any positive effect from the boost?
>> >
>> >
>> >
>> > I have already started designing the scoop, but now have second thoughts
>> > and wanted
>> >
>> > to see if I was going down the wrong path.
>> >
>> >
>> >
>> > Any thoughts?
>> >
>> >
>> >
>> > Jack Prock
>> >
>> > _______________________________________________
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>> ------------------------------
>> 
>> Message: 2
>> Date: Mon, 03 Mar 2014 14:25:13 -0500
>> From: Brett Ferrell <reflector at velocityxl.com>
>> To: reflector at tvbf.org
>> Subject: Re: REFLECTOR: Air intake
>> Message-ID:
>>         <1393874713.11315.90070521.7186B86E at webmail.messagingengine.com>
>> Content-Type: text/plain; charset="us-ascii"
>> 
>> Thanks for the shout-out... we do have a narrow deck Lycoming, but it
>> dynoed at just over 300 HP, with high compression pistons...
>> 
>> 
>> 
>> --
>> Brett Ferrell
>> reflector at velocityxl.com
>> 
>> 
>> 
>> 
>> 
>> On Mon, Mar 3, 2014, at 12:49 PM, Mike Dawson wrote:
>> 
>> N44FV, a XLFG with a 260hp Lycoming, has been said to do about 180.
>> This by Scott Swing who flew it as seen in a you tube video. Whether
>> this was MPH or KTS really doesn't matter, Here is why.  I own a XLFG
>> with a 350hp Chevy V8. Other than downhill I have only seen 174KTS flat
>> out!
>> Now granted it is still in rough primer but I don't believe paint will
>> make up for the airscoop I have hanging below the belly for the
>> radiator.
>> 
>> Our sleek airframes don't like stuff hanging off of them.
>> 
>> N427VA a SERG 427 V8 useing NACA scoops to cool however, hauls ass.
>> Bill and Brett did it right IMHO!
>> 
>> Mike
>> N104DD
>> 
>>   *
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>> ------------------------------
>> 
>> Message: 3
>> Date: Mon, 3 Mar 2014 16:57:30 -0800
>> From: Mike Dawson <medawson250 at yahoo.com>
>> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>> Subject: Re: REFLECTOR: Air intake
>> Message-ID: <0A6EE711-E0D6-46E4-B9B4-73F14DD0FB3E at yahoo.com>
>> Content-Type: text/plain; charset="us-ascii"
>> 
>> Well that makes me feel a little better.
>> I do have to say mine climbs well but that is usually what excess horsepower does anyway.
>> My apologies.
>> 
>> 
>> 
>> Michael E Dawson
>> ATCI CFII
>> 
>> 
>> > On Mar 3, 2014, at 11:25 AM, Brett Ferrell <reflector at velocityxl.com> wrote:
>> >
>> > Thanks for the shout-out... we do have a narrow deck Lycoming, but it dynoed at just over 300 HP, with high compression pistons...
>> >
>> > --
>> > Brett Ferrell
>> > reflector at velocityxl.com
>> >
>> >
>> >> On Mon, Mar 3, 2014, at 12:49 PM, Mike Dawson wrote:
>> >> N44FV, a XLFG with a 260hp Lycoming, has been said to do about 180. This by Scott Swing who flew it as seen in a you tube video. Whether this was MPH or KTS really doesn't matter, Here is why.  I own a XLFG with a 350hp Chevy V8. Other than downhill I have only seen 174KTS flat out!
>> >> Now granted it is still in rough primer but I don't believe paint will make up for the airscoop I have hanging below the belly for the radiator.
>> >>
>> >> Our sleek airframes don't like stuff hanging off of them.
>> >>
>> >> N427VA a SERG 427 V8 useing NACA scoops to cool however, hauls ass. Bill and Brett did it right IMHO!
>> >>
>> >> Mike
>> >> N104DD
>> > _______________________________________________
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>> ------------------------------
>> 
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>> End of Reflector Digest, Vol 108, Issue 5
>> *****************************************
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> 
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