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Date: Tue, 04 Oct 2011 07:36:41 -0400
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From: vtailjeff@aol.com
Subject: Re: [LML] Re: Engine data
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Pull rod? Do you mean "tow bar"?  Lancair may sell these separately.

Jeff

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On Oct 3, 2011, at 3:10 PM, Brent Regan <brent@regandesigns.com> wrote:

> Peter asks:
>=20
> <<<<<1 . CHTs are all around 185 with the exeption of no. 3. It is also th=
e one where EGT is only 620 wheras all others are at 790. That should not be=
 the case and I am surching the reason.
>=20
> 2. Engine cowling is quite close to the exhaust - what is the recommended m=
inimum distance?
>=20
> 3. In case I want to isolate the exhaust for heat isolation, is it better t=
o isolate the exhaust or to put some isolating material to the cowling ?
>=20
> 4. Any recomentations for a pull rod  for the Lancair 360 ? Finally is dec=
ided that I need one and do not want to reinvent the wheel.>>>>>>
>=20
> 1) Ground runs will not give you an accurate indication of what will happe=
n at high power settings. You can try to swap injectors to see if the low te=
mperature follows the injector but I suspect these readings will become mean=
ingful at higher power settings. Monitor these readings carefully during ear=
ly flight testing.
>=20
> 2) This depends on how much cooling is available. An effective product to u=
se is Zetex A600. It is a cloth material that has one face covered in thin a=
luminum. You can make your own by using spray adhesive (3M #90) to bond heav=
y duty cooking aluminum foil to class cloth and then bonding that to your co=
wling. Seal the edges with RTV.
>=20
> 3) Do NOT insulate the exhaust pipe. This causes the pipe to get hot and c=
an lead to failure.
>=20
> 4) I can't help you with this one.
>=20
> I hope this helps. In what country are you building your aircraft?
>=20
> Regards
> Brent Regan
>=20
> --
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