REFLECTOR: Reflector Digest, Vol 108, Issue 8

Jones Nick nick.jones at volvo.com
Tue Mar 4 14:16:45 CST 2014


[cid:image001.jpg at 01CF37BC.BEDC1F30]

Lancair IV scoop mounted in the lower cowl

with airbox housing



[cid:image002.jpg at 01CF37BC.BEDC1F30]

K&N air filter mounted on airbox.



[cid:image003.jpg at 01CF37BC.BEDC1F30]

Airbox cover made from carbon fiber with outlet flange.



[cid:image004.jpg at 01CF37BC.BEDC1F30]

Airbox cover mounted with clamping latches



[cid:image005.jpg at 01CF37BC.BEDC1F30]

Alternate air door cable mounting bracket. Mounted

To engine backbone.



[cid:image006.jpg at 01CF37BC.BEDC1F30]

Cirrus SR22 alternate air door assembly mounted with actuator cable.


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: Tuesday, March 04, 2014 14:50
To: reflector at tvbf.org
Subject: Reflector Digest, Vol 108, Issue 8



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Today's Topics:



   1. Re:  Reflector Digest, Vol 108, Issue 5 (Don Johnston)

   2. Re:  Air intake (Richard J. Gentil)





----------------------------------------------------------------------



Message: 1

Date: Tue, 4 Mar 2014 13:37:11 -0600

From: Don Johnston <numa at comcast.net<mailto:numa at comcast.net>>

To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org<mailto:reflector at tvbf.org>>

Subject: Re: REFLECTOR: Reflector Digest, Vol 108, Issue 5

Message-ID:

     <CALD29irBF39WqCRh5Un7SqVPA_bBjXCTtGmfJoh4vC5k4SGc0w at mail.gmail.com<mailto:CALD29irBF39WqCRh5Un7SqVPA_bBjXCTtGmfJoh4vC5k4SGc0w at mail.gmail.com>>

Content-Type: text/plain; charset="iso-8859-1"



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<mailto: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> [mailto:reflector-bounces at tvbf.org] On

> Behalf Of reflector-request at tvbf.org<mailto:reflector-request at tvbf.org>

> Sent: Monday, March 03, 2014 19:58

> To: reflector at tvbf.org<mailto:reflector at tvbf.org>

> Subject: Reflector Digest, Vol 108, Issue 5

>

> Send Reflector mailing list submissions to

>         reflector at tvbf.org<mailto:reflector at tvbf.org>

>

> To subscribe or unsubscribe via the World Wide Web, visit

>         http://www.tvbf.org/mailman/listinfo/reflector

> or, via email, send a message with subject or body 'help' to

>         reflector-request at tvbf.org<mailto:reflector-request at tvbf.org>

>

> You can reach the person managing the list at

>         reflector-owner at tvbf.org<mailto:reflector-owner at tvbf.org>

>

> When replying, please edit your Subject line so it is more specific

> than "Re: Contents of Reflector digest..."

>

>

> 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<mailto:numa at comcast.net>>

> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org<mailto:reflector at tvbf.org>>

> Subject: Re: REFLECTOR: Air intake

> Message-ID:

>         <CALD29ipyRcCd7LpQfi6L_Q3mXTw-DT=

> X9vQd646zL+152tTY_Q at mail.gmail.com<mailto: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<mailto: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

> >

> > _______________________________________________

> > 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<http://www.tvbf.org/pipermail>

> > Check old archives: http://www.tvbf.org/archives/velocity/maillist.html

> >

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> ------------------------------

>

> Message: 2

> Date: Mon, 03 Mar 2014 14:25:13 -0500

> From: Brett Ferrell <reflector at velocityxl.com<mailto:reflector at velocityxl.com>>

> To: reflector at tvbf.org<mailto:reflector at tvbf.org>

> Subject: Re: REFLECTOR: Air intake

> Message-ID:

>         <1393874713.11315.90070521.7186B86E at webmail.messagingengine.com<mailto: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<mailto: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<mailto:medawson250 at yahoo.com>>

> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org<mailto:reflector at tvbf.org>>

> Subject: Re: REFLECTOR: Air intake

> Message-ID: <0A6EE711-E0D6-46E4-B9B4-73F14DD0FB3E at yahoo.com<mailto: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<mailto: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<mailto: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

> > _______________________________________________

> > 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<http://www.tvbf.org/pipermail>

> > Check old archives: http://www.tvbf.org/archives/velocity/maillist.html

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>

> ------------------------------

>

> _______________________________________________

> Visit the gallery!  tvbf:jamaicangoose

>

> End of Reflector Digest, Vol 108, Issue 5

> *****************************************

>

> _______________________________________________

> To change your email address, visit

> http://www.tvbf.org/mailman/listinfo/reflector

>

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> user:pw = tvbf:jamaicangoose

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------------------------------



Message: 2

Date: Tue, 4 Mar 2014 14:50:11 -0500

From: "Richard J. Gentil" <richard at naples-air-center.com<mailto:richard at naples-air-center.com>>

To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org<mailto:reflector at tvbf.org>>

Subject: Re: REFLECTOR: Air intake

Message-ID:

     <6F7CA695-B110-4A0B-BDE7-6A007E1C0DD5 at naples-air-center.com<mailto:6F7CA695-B110-4A0B-BDE7-6A007E1C0DD5 at naples-air-center.com>>

Content-Type: text/plain; charset="us-ascii"



My IO-390 had the intake facing the prop so I had to come up with a solution to getting air to it. I took the two armpit scoops, but them to make a single scoop which I mounted to the rear of the cowling. I also have to push out the bottom of the cowl because the intake on the engine hung down just slightly too low.



I used a Cessna C-172 bracket filter which you can see in the pictures.



Here are some of my old construction photos:















Richard



Sent from my iPhone 5 Classic



> On Mar 4, 2014, at 2:03 PM, Mel Bina <pusherpilot1 at gmail.com<mailto:pusherpilot1 at gmail.com>> wrote:

>

> Air intake.<a005_5 (Med).jpg>

>

>

>> On Tue, Mar 4, 2014 at 12:01 PM, Mel Bina <pusherpilot1 at gmail.com<mailto:pusherpilot1 at gmail.com>> wrote:

>> Attached is a photo of my intake.  It was a Velocity part that I modified.  The intake fed directly into a filter box (photo attached) and into the fuel servo.

>>

>> Mel Bina<a004_4 (Med).jpg>

>>

>>

>>> On Mon, Mar 3, 2014 at 5:57 PM, Mike Dawson <medawson250 at yahoo.com<mailto:medawson250 at yahoo.com>> wrote:

>>> 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<mailto: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<mailto: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

>>>

>>>> _______________________________________________

>>>> 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<http://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<http://www.tvbf.org/gallery>

>>> user:pw = tvbf:jamaicangoose

>>> Check new archives: www.tvbf.org/pipermail<http://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<http://www.tvbf.org/gallery>

> user:pw = tvbf:jamaicangoose

> Check new archives: www.tvbf.org/pipermail<http://www.tvbf.org/pipermail>

> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html

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------------------------------



_______________________________________________

Visit the gallery!  tvbf:jamaicangoose



End of Reflector Digest, Vol 108, Issue 8

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