REFLECTOR: Re: Reflector Digest, Vol 9, Issue 53-PREVENTING DRAFTS
Tom & Mo Falls
thefalls at athenet.net
Wed Feb 16 17:38:46 CST 2005
I would like to see a picture. Here in the deep freeze of Wisconsin it is
imperative that all drafts be eliminated. Thanks.
-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Chuck Harbert
Sent: Wednesday, February 16, 2005 1:43 PM
To: reflector at tvbf.org
Subject: REFLECTOR: Re: Reflector Digest, Vol 9, Issue 53-PREVENTING DRAFTS
To: Tom Martino:
I have a std RG. I sealed my cabin by using a piece of rubber tire tube
which I stretched over the upper part of the nose gear tube. I took about a
9' x 9" piece of the tube and cut about a 1" hole in the center which will
stretch over the tube. Then I took some 3/4" x 3/16" aluminum flat stock
pieces and drilled holes for 1/8" pop rivets to go thru. I put the stock
against the rubber tube and drilled thru rubber and the surrounding wall,
and then pop rivited it in place. When the nose gear rotates it stretches
the rubber, but stays sealed. It works very well and there's virtually no
airflow into the cabin when you drop the gear. I could try to get a picture
if you want it.
Chuck Harbert
p.s. This the first time I've used Reflector. Hope it works.
----- Original Message -----
From: <reflector-request at tvbf.org>
To: <reflector at tvbf.org>
Sent: Wednesday, February 16, 2005 8:21 AM
Subject: Reflector Digest, Vol 9, Issue 53
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> Today's Topics:
>
> 1. Re: PREVENTING DRAFTS (Scott Baker)
> 2. Re: PREVENTING DRAFTS (HYTEC45 at aol.com)
> 3. Re: FUEL FEED [heur] (Scott Derrick)
> 4. Re: FUEL FEED [heur] (Scott Derrick)
> 5. Re: FUEL FEED (Scott Derrick)
> 6. Re: PREVENTING DRAFTS (Scott Derrick)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 16 Feb 2005 06:19:50 -0500
> From: "Scott Baker" <sbakr at comcast.net>
> Subject: Re: REFLECTOR: PREVENTING DRAFTS
> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> Message-ID: <001501c51419$7064a870$0201a8c0 at DAD>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Why in the world would you want to seal off a small draft when it's
> 75-degrees outside?? ;-)
> Scott B.
> ----- Original Message -----
> From: Tom Martino
> To: reflector at www.tvbf.org
> Sent: Tuesday, February 15, 2005 11:43 PM
> Subject: REFLECTOR: PREVENTING DRAFTS
>
>
> With the nose gear down and gear doors open . how do you guys keep air
> from rushing into the cockpit?
>
>
>
> I know I obviously have to install some kind of barrier . but I'm not
> sure of the configuration.
>
>
>
> Any ideas? Or better yet . any photos?
>
>
>
> Tom
>
> N173EX
>
>
>
>
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> ------------------------------
>
> Message: 2
> Date: Wed, 16 Feb 2005 09:53:46 EST
> From: HYTEC45 at aol.com
> Subject: Re: REFLECTOR: PREVENTING DRAFTS
> To: reflector at tvbf.org
> Message-ID: <30.6c5da523.2f44b87a at aol.com>
> Content-Type: text/plain; charset="us-ascii"
>
>
> In a message dated 2/16/2005 3:26:40 A.M. Pacific Standard Time,
> sbakr at comcast.net writes:
>
> Why in the world would you want to seal off a small draft when it's
> 75-degrees outside?? ;-)
> Scott B.
>
>
>
> Some of us carry less insulation than others;-)
>
> TEC
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> ------------------------------
>
> Message: 3
> Date: Wed, 16 Feb 2005 09:11:36 -0700
> From: Scott Derrick <scott at tnstaafl.net>
> Subject: Re: REFLECTOR: FUEL FEED [heur]
> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> Message-ID: <421370B8.5010007 at tnstaafl.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> as long as the turn coordinator is actually installed correctly.
>
> Its amazing how many are not. It doesn't take much.
>
> Scott
>
>
> Tom Martino wrote:
>
>>My plane flies perfectly. Not my opinion, it is the assessment of my
>>test pilot. The ball is in the center and the plane flies "hands off"
>>straight and level.
>>
>>I will keep looking.
>>
>>-----Original Message-----
>>From: Scott Derrick [mailto:scott at tnstaafl.net]
>>Sent: Tuesday, February 15, 2005 9:18 AM
>>To: Velocity Aircraft Owners and Builders list
>>Subject: Re: REFLECTOR: FUEL FEED [heur]
>>
>>A leaking gas cap can cause uneven fuel flow but is not the prime
>>culprit. A bit of fuel valve lube applied to the O ring once a year will
>>
>>insure this doesn't happen.
>>
>>A miss-rigged airplane is most likely the cause. Shim your rudders so
>>the ball is right in the middle and you will get perfect fuel flow.
>>
>>To test, be sure your turn and bank is installed correctly first,
>>garbage in garbage out. Then fly, this is the fun part.. Once you see an
>>
>>uneven condition, press on the rudder that will put the ball in the
>>middle. If you want to even up the tanks fast, press on the correct
>>rudder so the ball is on the other side for a couple minutes, you'll see
>>
>>the fuel even up and even go into the opposite imbalance if you keep the
>>
>>rudder depressed. Then hold the rudder so the ball is centered, fuel
>>will flow as it was designed to.
>>
>>Scott
>>
>>Tom Martino wrote:
>>
>>
>>
>>>Well, now that I'm in my test flying mode ... I will really be asking
>>>a lot of questions.
>>>
>>>Here are some of them, as they relate to my fuel system:
>>>
>>>1. What makes the fuel tanks feed unevenly to the header tank/engine?
>>>(My right tank is feeding twice as fast as my right tank.)
>>>
>>>2. Will that cause a problem when the fast-feeding tank runs out?
>>>
>>>3. I used the larger vent lines for my tanks and tied them al together
>>>
>>>
>>
>>
>>
>>>with a manifold, then vented the entire system out through the top of
>>>my firewall in the engine compartment (about four inches below my naca
>>>
>>>
>>
>>
>>
>>>duct). Do you think the system gets enough venting there?
>>>
>>>4. Is there a need for a "whistle" hole in any of the tank vents ...
>>>for additional venting (like we do with the crankcase breather?
>>>
>>>Any help is appreciated from my more experienced Velocitologists J
>>>
>>>Tom
>>>
>>>N173EX
>>>
>>>(A mere 6 hours)
>>>
>>>-----------------------------------------------------------------------
>>>
>>>
>>-
>>
>>
>>>_______________________________________________
>>>To change your email address, visit
>>>
>>>
>>http://www.tvbf.org/mailman/listinfo/reflector
>>
>>
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>>>Check new archives: www.tvbf.org/pipermail
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>>>
>>>
>>>
>>_______________________________________________
>>To change your email address, visit
>>http://www.tvbf.org/mailman/listinfo/reflector
>>
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>>
>>
>>_______________________________________________
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>>
>>
>>
>>
>>
>
>
> ------------------------------
>
> Message: 4
> Date: Wed, 16 Feb 2005 09:14:06 -0700
> From: Scott Derrick <scott at tnstaafl.net>
> Subject: Re: REFLECTOR: FUEL FEED [heur]
> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> Message-ID: <4213714E.5060705 at tnstaafl.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>
> I think it is extremly dangerous to vent the fuel system into the engine
> compartment!
>
> Why would anybody do that???
>
> Scott
>
> Ron Brown wrote:
>
>> Tom,
>>
>> I don't think it is a good idea to vent the fuel system into the
>> engine compartment, especially if you happen to flip upside down
>> during a crash landing. You will have lots of fuel draining out the
>> vent system into the hot engine compartment.
>>
>> With the factory designed fuel vent line routed up to the top of the
>> firewall then back down to exit the bottom of the fuselage, fuel will
>> not leak out of the vent system when the airplane is upside down.
>>
>> One other thought on uneven fuel flow, even if the vents are tied
>> together and the plane is flying level/ball centered: there is a
>> possibility that an air bubble trapped in the vent line with fuel on
>> either side of the bubble can cause an uneven venting of the tanks.
>> This wouldn't happen if the vent lines always slope upward to the
>> manifold. I think this may be the scenario that Jim Sower is seeing
>> from time to time. I have had it happen a couple of times on long
>> trips after filling the tanks nearly full. After landing and parking
>> in my hanger, the fuel tanks were 5 or so gallons different and
>> remained that way until I opened the fuel caps. STRANGE! Wings are
>> level when parked in the hanger. Another experiment - I placed a 2 x
>> 6 under one main tire, simulating a wings down. Guess what - the fuel
>> level difference was MUCH LESS than I have seen in the air.
>>
>> But again, it could be fuel caps that are not always sealing perfectly
>> for every flight.
>>
>> Ronnie
>>
>> ----- Original Message ----- From: "Tom Martino"
>> <tmartino at troubleshooter.com>
>> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
>> Sent: Tuesday, February 15, 2005 12:23 PM
>> Subject: RE: REFLECTOR: FUEL FEED [heur]
>>
>>
>> My plane flies perfectly. Not my opinion, it is the assessment of my
>> test pilot. The ball is in the center and the plane flies "hands off"
>> straight and level.
>>
>> I will keep looking.
>>
>> -----Original Message-----
>> From: Scott Derrick [mailto:scott at tnstaafl.net]
>> Sent: Tuesday, February 15, 2005 9:18 AM
>> To: Velocity Aircraft Owners and Builders list
>> Subject: Re: REFLECTOR: FUEL FEED [heur]
>>
>> A leaking gas cap can cause uneven fuel flow but is not the prime
>> culprit. A bit of fuel valve lube applied to the O ring once a year will
>>
>> insure this doesn't happen.
>>
>> A miss-rigged airplane is most likely the cause. Shim your rudders so
>> the ball is right in the middle and you will get perfect fuel flow.
>>
>> To test, be sure your turn and bank is installed correctly first,
>> garbage in garbage out. Then fly, this is the fun part.. Once you see an
>>
>> uneven condition, press on the rudder that will put the ball in the
>> middle. If you want to even up the tanks fast, press on the correct
>> rudder so the ball is on the other side for a couple minutes, you'll see
>>
>> the fuel even up and even go into the opposite imbalance if you keep the
>>
>> rudder depressed. Then hold the rudder so the ball is centered, fuel
>> will flow as it was designed to.
>>
>> Scott
>>
>> Tom Martino wrote:
>>
>>> Well, now that I'm in my test flying mode ... I will really be asking
>>> a lot of questions.
>>>
>>> Here are some of them, as they relate to my fuel system:
>>>
>>> 1. What makes the fuel tanks feed unevenly to the header tank/engine?
>>> (My right tank is feeding twice as fast as my right tank.)
>>>
>>> 2. Will that cause a problem when the fast-feeding tank runs out?
>>>
>>> 3. I used the larger vent lines for my tanks and tied them al together
>>
>>
>>> with a manifold, then vented the entire system out through the top of
>>> my firewall in the engine compartment (about four inches below my naca
>>
>>
>>> duct). Do you think the system gets enough venting there?
>>>
>>> 4. Is there a need for a "whistle" hole in any of the tank vents ...
>>> for additional venting (like we do with the crankcase breather?
>>>
>>> Any help is appreciated from my more experienced Velocitologists J
>>>
>>> Tom
>>>
>>> N173EX
>>>
>>> (A mere 6 hours)
>>>
>>> -----------------------------------------------------------------------
>>
>> -
>>
>>>
>>> _______________________________________________
>>> 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 =vbf: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
>>
>>
>>
>
>
> ------------------------------
>
> Message: 5
> Date: Wed, 16 Feb 2005 09:16:44 -0700
> From: Scott Derrick <scott at tnstaafl.net>
> Subject: Re: REFLECTOR: FUEL FEED
> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> Message-ID: <421371EC.3080005 at tnstaafl.net>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> Jim,
>
> Obviously you have something really wrong or should I say "very
> different" from the factory configuration.
>
> The proof is in the pudding.
>
> Find and correct that difference and your fuel flow would be per design.
>
> Scott
>
> Jim Sower wrote:
>
>>
>>
>> Scott Derrick wrote:
>>
>>> A leaking gas cap can cause uneven fuel flow but is not the prime
>>> culprit. A bit of fuel valve lube applied to the O ring once a year
>>> will insure this doesn't happen.
>>>
>>> A miss-rigged airplane is most likely the cause. Shim your rudders so
>>> the ball is right in the middle and you will get perfect fuel flow.
>>
>> That's what I thought. It's the first thing I did. Leveled the
>> airplane w/laser level, checked the ball centered, flew a couple of
>> test hops and shimmed it to perfectly centered ball. Had no
>> measurable effect AT ALL on assymmetric transfer.
>>
>>>
>>> To test, be sure your turn and bank is installed correctly first,
>>> garbage in garbage out. Then fly, this is the fun part.. Once you see
>>> an uneven condition, press on the rudder that will put the ball in
>>> the middle. If you want to even up the tanks fast, press on the
>>> correct rudder so the ball is on the other side for a couple minutes,
>>> you'll see the fuel even up and even go into the opposite imbalance
>>> if you keep the rudder depressed. Then hold the rudder so the ball is
>>> centered, fuel will flow as it was designed to.
>>
>> At full rudder deflection I was able to transfer maybe 1/2 gal / min.
>> Took 10 minutes to transfer five gallons (that was on a GOOD day.
>> Other days it was less.
>>
>> Sometimes nothing at all seems to work ... but I finally fixed it ...
>> Jim S.
>>
>>>
>>> Scott
>>>
>>> Tom Martino wrote:
>>>
>>>> Well, now that I'm in my test flying mode ... I will really be
>>>> asking a lot of questions.
>>>>
>>>> Here are some of them, as they relate to my fuel system:
>>>>
>>>> 1. What makes the fuel tanks feed unevenly to the header
>>>> tank/engine? (My right tank is feeding twice as fast as my right tank.)
>>>>
>>>> 2. Will that cause a problem when the fast-feeding tank runs out?
>>>>
>>>> 3. I used the larger vent lines for my tanks and tied them al
>>>> together with a manifold, then vented the entire system out through
>>>> the top of my firewall in the engine compartment (about four inches
>>>> below my naca duct). Do you think the system gets enough venting there?
>>>>
>>>> 4. Is there a need for a "whistle" hole in any of the tank vents ...
>>>> for additional venting (like we do with the crankcase breather?
>>>>
>>>> Any help is appreciated from my more experienced Velocitologists J
>>>>
>>>> Tom
>>>>
>>>> N173EX
>>>>
>>>> (A mere 6 hours)
>>>>
>>>>
------------------------------------------------------------------------
>>>>
>>>>
>>>> _______________________________________________
>>>> 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
>>
>
>
> ------------------------------
>
> Message: 6
> Date: Wed, 16 Feb 2005 09:21:00 -0700
> From: Scott Derrick <scott at tnstaafl.net>
> Subject: Re: REFLECTOR: PREVENTING DRAFTS
> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> Message-ID: <421372EC.2050707 at tnstaafl.net>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> Scott,
>
> Most of the world doesn't fly in the hot box of Florida. Some of us
> rarely see 75 degrees F. in flight. I never see above freezing during
> the winter.
>
> The standard design of the RG system as far as sealing the cabin sucks..
>
> Scott
>
> Scott Baker wrote:
>
>> Why in the world would you want to seal off a small draft when it's
>> 75-degrees outside?? ;-)
>> Scott B.
>>
>> ----- Original Message -----
>> *From:* Tom Martino <mailto:tmartino at troubleshooter.com>
>> *To:* reflector at www.tvbf.org <mailto:reflector at www.tvbf.org>
>> *Sent:* Tuesday, February 15, 2005 11:43 PM
>> *Subject:* REFLECTOR: PREVENTING DRAFTS
>>
>> With the nose gear down and gear doors open . how do you guys keep
>> air from rushing into the cockpit?
>>
>> I know I obviously have to install some kind of barrier . but I'm
>> not sure of the configuration.
>>
>> Any ideas? Or better yet . any photos?
>>
>> Tom
>>
>> N173EX
>>
>>
------------------------------------------------------------------------
>> _______________________________________________
>> 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
>>
>
>
> ------------------------------
>
> _______________________________________________
> Visit the gallery! tvbf:jamaicangoose
>
> End of Reflector Digest, Vol 9, Issue 53
> ****************************************
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