REFLECTOR: Titanium Firewall

Tue May 15 10:57:23 CDT 2007

I used 6Al-4V titanium .032 thick. I work for the airlines and bought it 
from my employer
----- Original Message ----- 
From: "Unterreiner" <naomi at yadtel.net>
To: <reflector at tvbf.org>
Sent: Tuesday, May 15, 2007 9:18 AM
Subject: REFLECTOR: Titanium Firewall


>A while back I posted a question about firewall materials, someone replied
> that they used titanium. If the respondent or anyone else reads this who
> used titanium, I would like to know what thickness, designation, and where
> you purchased it.
>
> Thanks,
> Dean Unterreiner
>
>
> ----- Original Message ----- 
> From: <reflector-request at tvbf.org>
> To: <reflector at tvbf.org>
> Sent: Tuesday, May 15, 2007 8:20 AM
> Subject: Reflector Digest, Vol 36, Issue 38
>
>
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>> When replying, please edit your Subject line so it is more specific
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>>
>> Today's Topics:
>>
>>   1. Re:  SARL Race in Taylor Texas (Juanita Londenberg)
>>   2. Re:  First Flight for N173RT (Robert Trent)
>>   3.  Incident at PDK (Donald Royer)
>>   4.   Oil Consumption (Ron Brown)
>>   5. Re:  Incident at PDK (Chuck Jensen)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Mon, 14 May 2007 19:44:06 -0700 (PDT)
>> From: Juanita Londenberg <i.fly.too at sbcglobal.net>
>> Subject: Re: REFLECTOR: SARL Race in Taylor Texas
>> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>> Message-ID: <117078.46926.qm at web81109.mail.mud.yahoo.com>
>> Content-Type: text/plain; charset=iso-8859-1
>>
>> Rene'
>> Brian talked about doing this race (in a rented spam
>> can) since we're not flying yet.  But we hangar in
>> Taylor, so if you decide to come be sure to let us
>> know.  Are you doing an overnighter -- we can fix you
>> up.
>>
>> Juanita
>> --- Rene Dugas <dugasd at bellsouth.net> wrote:
>>
>>> Any other Velocity pilots racing in the Taylor Texas
>>> race this weekend?
>>>
>>> Rene'
>>>
>>> > _______________________________________________
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>>
>> ------------------------------
>>
>> Message: 2
>> Date: Mon, 14 May 2007 22:58:26 -0400
>> From: "Robert Trent" <RDTRENT1 at CHARTERMI.NET>
>> Subject: Re: REFLECTOR: First Flight for N173RT
>> To: "'Velocity Aircraft Owners and Builders list'"
>> <reflector at tvbf.org>
>> Message-ID: <20070515025834.UFBS15783.aa09.charter.net at DB68PT71>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> Mack
>>
>> I checked my vernatherm today. It only expanded 1/16th inch when heated 
>> in
>> boiling water. I'm sure this isn't enough.
>>
>>
>>
>> A local A+P had a used spare that opened 3/16th inch when checked. I'm 
>> not
>> sure that this is enough but I will give it a try.
>>
>> Do you know how much they should grow when heated to about 210 deg?
>>
>>
>>
>> Thanks
>>
>> Bob
>>
>>
>>
>>  _____
>>
>> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
>> Behalf Of MMurp16900 at aol.com
>> Sent: Monday, May 14, 2007 9:58 PM
>> To: reflector at tvbf.org
>> Subject: Re: REFLECTOR: First Flight for N173RT
>>
>>
>>
>> HI Bob
>>
>> Con grads on first flight
>>
>> Please understand The he vernatherm must be tightly closed against  seat
>> then all oil goes thru the coolers
>>
>> Regards
>>
>> Mack
>>
>>
>>
>>
>>
>>  _____
>>
>> See what's free at AOL.com <http://www.aol.com?ncid=AOLAOF00020000000503>
>> .
>>
>> -------------- next part --------------
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>>
>> ------------------------------
>>
>> Message: 3
>> Date: Mon, 14 May 2007 21:36:52 -0600
>> From: "Donald Royer" <djroyer at earthlink.net>
>> Subject: REFLECTOR: Incident at PDK
>> To: "reflector at tvbf.org" <reflector at tvbf.org>
>> Message-ID: <410-22007521533652468 at earthlink.net>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> Wednesday May 9 I made a VFR flight from Zephyrhills Florida to
>> Peachtree-Dekalb airport (PDK) in Atlanta. The problem occurred during 
>> the
>> landing. As shown in the report, there was a gusty wind and the air was
>> very turbulent. There were several other distracting factors that are
>> really not relevant to this report, and the net result was that I made a
>> hard landing. In retrospect, I feel that it was not all that hard and I
>> have had harder landings in the past without damage, but this time the
>> nose gear broke. One possible contributing factor may have been that I 
>> was
>> flying with the CG essentially at the aft limit and the resulting nose
>> high attitude may have caused the nose gear to slam down especially hard,
>> or maybe it was commutative fatigue from several severe cases of shimmy 
>> in
>> the past, but shimmy was not involved this time.
>>
>> The initial break was about three inches above the fork, right in the
>> lower bend in the leg. That seems to me to be a rather strange place for 
>> a
>> break, but it is clear that that is what broke first. The broken end of
>> the leg then dug into the asphalt runway (it left about a three inch hole
>> in the runway) and this caused a second break. The second break was in 
>> the
>> weld at the top of the pivot bolt tube. When the plane came to rest the
>> stub of the leg was pointing backwards, and the nose of the plane was on
>> the ground.
>>
>> The reason that the report says that it occurred on a taxiway is that
>> while sliding down the runway I came to a turnoff and turned off and
>> cleared the runway before it stopped. Of course, they still had to close
>> the runway while the nose wheel and fork were retrieved.
>>
>> Epps Aviation retrieved the plane and let me work in their shop and 
>> loaned
>> me tools for the next two days. Other than the gear leg itself, I was
>> surprised at how little damage was done. There was the expected cosmetic
>> scrape on the bottom of the nose and the nose gear doors were in sorry
>> shape, but they were still attached. The pivot bolt bushings, the
>> captivator, and the canard bulkhead were all undamaged which I think says
>> good things about how tough these Velocities are. The only other damage
>> was to the tip of one prop blade which looks like it probably struck the
>> nose wheel. It doesn't look too bad and I think that it is repairable, 
>> but
>> I will want an expert opinion before I fly with it.
>>
>> A new gear leg was overnighted up from Velocity. It has been installed 
>> and
>> the plane is back on it's wheels and tied down outside until I can get
>> back to finish getting it airworthy which should not take more than about
>> one more day. One thing that will have to be addressed at that time is,
>> that for reasons that I don't understand, the old fork doesn't fit
>> properly on the new leg. I can't tighten the Belleville washers.
>>
>> One last thing. There has recently been a discussion here about bent 
>> pivot
>> bolts. This one had to be cut out.
>>
>> Donald Royer
>> -------------- next part --------------
>> An HTML attachment was scrubbed...
>> URL:
>> http://www.tvbf.org/mailman/private/reflector/attachments/20070514/ec5d7991/attachment.htm
>>
>> ------------------------------
>>
>> Message: 4
>> Date: Tue, 15 May 2007 08:15:25 -0400
>> From: "Ron Brown" <romott at roadrunner.com>
>> Subject: REFLECTOR:  Oil Consumption
>> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
>> Message-ID: <008001c796ea$b85aa390$0202a8c0 at romott>
>> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
>> reply-type=original
>>
>> That's interesting information!
>>
>> My Don George rebuilt IO360-C1C angle valve engine has been using about 1
>> quart in 4-5 hours ever since initial start up.  I felt I had done too
>> much
>> taxi testing.  I too checked my crankcase pressure, it was within the
>> Lycoming limits and my compressions are 78/80.  Changing the operating 
>> oil
>> levels didn't seem to help either. I called Don and he said this
>> consumption
>> was not out of line and not worth worrying about.
>>
>> I built and installed an oil/air separator which didn't  seem to help 
>> much
>> other than it was returning some clean oil to the engine.  (I checked 
>> what
>> was coming out of the separator and it was not milky and no water was
>> present).
>>
>> Now that I hear that this is normal for Lycoming Angle Valve engines, 
>> I'll
>> go worry about something else!
>>
>> Ronnie
>>
>> ----- Original Message ----- 
>> From: "steve korney" <s_korney at hotmail.com>
>> To: <reflector at tvbf.org>
>> Sent: Monday, May 14, 2007 2:05 PM
>> Subject: Re: REFLECTOR: One or Two oil coolers?
>>
>>
>>>
>>> Tec...
>>>
>>> I don't think the oil squirter nozzles cause more oil consumption...
>>> Almost
>>> all Lycoming angle valve engines have them... I get about 6 hours per
>>> quart
>>> of oil if I keep the rpm's down below 2500... Over that rpm, the
>>> consumption
>>> goes up slightly...  I start with 8 quarts... Add one when it drops to 6
>>> quarts, back to 7... Add another when it drops back to 6, back to 7...
>>> add
>>> another when it drops to 6, back to 7...Then I change oil at 25 hours...
>>> Start all over again... At 50 hours, I change fillter and add 9 
>>> quarts...
>>> One extra for the filter...
>>>
>>>
>>> Best... Steve
>>>
>>>
>>>
>>>
>>> ----Original Message Follows----
>>> From: HYTEC45 at aol.com
>>> Reply-To: Velocity Aircraft Owners and Builders list 
>>> <reflector at tvbf.org>
>>> To: reflector at tvbf.org
>>> Subject: Re: REFLECTOR: One or Two oil coolers?
>>> Date: Mon, 14 May 2007 13:12:42 EDT
>>>
>>>
>>> In a message dated 5/14/2007 8:31:55 A.M. Pacific Standard Time,
>>> s_korney at hotmail.com writes:
>>>
>>> I put  those oil squirter nozzles on my parallel valve lycoming engine
>>> and
>>> the  oil temp went up about 15 degrees F in cruise. Ended up putting a 6
>>> cylinder oil cooler on the four cylinder system to take care of the
>>> higher
>>> oil temps...The nozzles open at about 40 lbs. of oil pressure so you
>>> don't
>>> loose any pressure at idle... I have adjustable oil pressure and it is
>>> set
>>> to 83 psi. @ 185 F. and 78 psi. @ 210 F.  At start up in the morning
>>> it's
>>> 120 psi. @ 60F and 1000 rpm's.  I let it warm to 90 F. before I  do a
>>> run-up
>>>
>>>
>>>
>>>
>>> Steve,
>>>
>>> Do you think the nozzles also increase oil consumption?  I have been
>>> fighting high(er) consumption (1qt. in 2.5hrs) since day one (800hrs.).
>>> I
>>> have even
>>> gone so far as two hone and re-ring jobs, and finally had Don  @
>>> Performance
>>> Engine put together a new set of nitrited cylinders  w/ chrome rings.
>>> All
>>> resulted in the same consumption results  exactly.  I can only point to
>>> the
>>> nozzles spraying oil directly onto the  piston/oil control rings.  Of
>>> course
>>> I have
>>> used correct break-in  procedures, and went the hole breather/crank case
>>> pressure thing and no  leaks.  Plugs and pipes look like ash.
>>>
>>> What kind of oil consumption are other V's /pushers seeing?
>>> TEC
>>>
>>>
>>>
>>> ************************************** See what's free at
>>> http://www.aol.com.
>>>
>>>
>>> _______________________________________________
>>> To change your email address, visit
>>> http://www.tvbf.org/mailman/listinfo/reflector
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>>
>>
>> --------------------------------------------------------------------------------
>>
>>
>>> _______________________________________________
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>>> http://www.tvbf.org/mailman/listinfo/reflector
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>>
>>
>>
>> ------------------------------
>>
>> Message: 5
>> Date: Tue, 15 May 2007 08:20:49 -0400
>> From: "Chuck Jensen" <cjensen at dts9000.com>
>> Subject: Re: REFLECTOR: Incident at PDK
>> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
>> Message-ID: <8984A39879F2F5418251CBEEC9C689B33E76A5 at lucky.dts.local>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> Don,
>>
>> It's good to hear that things are in relatively good order---in the
>> whole scheme of things, fiberglass is easy to fix.  You didn't say which
>> runway it was, but if I was a betting man, I'd put my money on the
>> runway being 02/20?  With anything more than a light breeze out of the
>> west, a person is always in for a ride and with strong gusty
>> winds.....well!!  It must be the air tumbling over the buildings to the
>> west or somethings, but there's alway an interesting ride into 20.
>> People sit on the 2nd story balcony of the restaurant there and get
>> their entertainment watching GA aircraft attempt smooth landings.
>> There's always a groan when someone actually greases one, otherwise let
>> the ballooning, bouncing and porpoising begin.  Approach almost always
>> uses 20 for GA...sadists.
>>
>> Regarding the shimmy you mentioned, I highly recommend Ken Mishler's
>> nose gear pin.  Works like a champ.  I believe its available through
>> Velocity, even though I bought mine direct from THE MAN.
>>
>> Chuck Jensen
>>
>> -----Original Message-----
>> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
>> Behalf Of Donald Royer
>> Sent: Monday, May 14, 2007 11:37 PM
>> To: reflector at tvbf.org
>> Subject: REFLECTOR: Incident at PDK
>>
>>
>>
>> Wednesday May 9 I made a VFR flight from Zephyrhills Florida to
>> Peachtree-Dekalb airport (PDK) in Atlanta. The problem occurred during
>> the landing. As shown in the report, there was a gusty wind and the air
>> was very turbulent. There were several other distracting factors that
>> are really not relevant to this report, and the net result was that I
>> made a hard landing. In retrospect, I feel that it was not all that hard
>> and I have had harder landings in the past without damage, but this time
>> the nose gear broke. One possible contributing factor may have been that
>> I was flying with the CG essentially at the aft limit and the resulting
>> nose high attitude may have caused the nose gear to slam down especially
>> hard, or maybe it was commutative fatigue from several severe cases of
>> shimmy in the past, but shimmy was not involved this time.
>>
>> The initial break was about three inches above the fork, right in the
>> lower bend in the leg. That seems to me to be a rather strange place for
>> a break, but it is clear that that is what broke first. The broken end
>> of the leg then dug into the asphalt runway (it left about a three inch
>> hole in the runway) and this caused a second break. The second break was
>> in the weld at the top of the pivot bolt tube. When the plane came to
>> rest the stub of the leg was pointing backwards, and the nose of the
>> plane was on the ground.
>>
>> The reason that the report says that it occurred on a taxiway is that
>> while sliding down the runway I came to a turnoff and turned off and
>> cleared the runway before it stopped. Of course, they still had to close
>> the runway while the nose wheel and fork were retrieved.
>>
>> Epps Aviation retrieved the plane and let me work in their shop and
>> loaned me tools for the next two days. Other than the gear leg itself, I
>> was surprised at how little damage was done. There was the expected
>> cosmetic scrape on the bottom of the nose and the nose gear doors were
>> in sorry shape, but they were still attached. The pivot bolt bushings,
>> the captivator, and the canard bulkhead were all undamaged which I think
>> says good things about how tough these Velocities are. The only other
>> damage was to the tip of one prop blade which looks like it probably
>> struck the nose wheel. It doesn't look too bad and I think that it is
>> repairable, but I will want an expert opinion before I fly with it.
>>
>> A new gear leg was overnighted up from Velocity. It has been installed
>> and the plane is back on it's wheels and tied down outside until I can
>> get back to finish getting it airworthy which should not take more than
>> about one more day. One thing that will have to be addressed at that
>> time is, that for reasons that I don't understand, the old fork doesn't
>> fit properly on the new leg. I can't tighten the Belleville washers.
>>
>> One last thing. There has recently been a discussion here about bent
>> pivot bolts. This one had to be cut out.
>>
>> Donald Royer
>> -------------- next part --------------
>> An HTML attachment was scrubbed...
>> URL:
>> http://www.tvbf.org/mailman/private/reflector/attachments/20070515/82bc92b7/attachment.html
>>
>> ------------------------------
>>
>> _______________________________________________
>> Visit the gallery!  tvbf:jamaicangoose
>>
>> End of Reflector Digest, Vol 36, Issue 38
>> *****************************************
>
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