REFLECTOR: Major Outline

Fri Apr 29 09:00:11 CDT 2005

I have a recirculation valve on my engine.  When it is hot, I can pull a
control (in the cockpit) that opens the valve - which lets fuel
circulate back into the tank.  So I can put cool, fresh fuel in the
lines.  It works great.

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Ron Brown
Sent: Friday, April 29, 2005 7:24 AM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Major Outline

Hi Terry,

Here's my opinions (and they are like A_ _ holes, everybody's got one
and most of them stink!!!):

I have the spider on top of my IO360.  No problems, just gotta learn how
to start a hot Lycoming.  You're right, the chimney effect of the NACAs
is very good.  Cools off nicely after shut down.

I'm not impressed with the Lasar mags.  Not very reliable and they ARE
expensive.  I've heard of too many folks who are not having good
success.  The E mags are worse from what I am reading on the RV lists.
And no 6 cylinder models yet.

The Jeff Rose Electroair has been sold - but I have been impressed with
mine.  There are a lot of them out there. I have a Slick and Jeff Rose.
I have also heard mostly good reports for the Lightspeed ignitions.

I would two batteries but one alternator should be fine.  I have a BOCB
(big ole car battery) that will run my panel for 4 plus hours.  I don't
have glass panels but I do have Garmin 430. Plenty of time to get on the
ground.  

And I'll be down to see you soon!

Ronnie

	----- Original Message ----- 

	From: Terrence Miles <mailto:knightflyr at sbcglobal.net>  

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

	Sent: Friday, April 29, 2005 8:26 AM

	Subject: RE: REFLECTOR: Major Outline

	Hey ya'll,

	I know this is not directly to the topic CHT issues at hand, but
I have an engine cooling problem to toss on the table.  I am trying to
refine an engine order for an IO540k w/ Lasar ign turning an
aerocomposite CS 3 blade prop.  I'll have the top cut naca scoops in
this XL and not the armpit cooling.  Here's my question:  Is there a
best place to locate the spider valve (SV) (fuel distrib)?  Concern
would be trying to restart a hot engine on the ramp.  My concern is
vapor lock.  If I put the SV on top of the engine it's hot up there, but
the naca can then work backwards.  I have seen heat air ripples coming
off of them just after shutdown.    If I locate it on the bottom face of
the engine there is less hot air rising but maybe lesser ventilation?
Anybody have any experience with this?  I am favoring the top mount.

	New 2nd question which is related:  I am trying to give D.
George a final buildup profile.  Here my take on ignition.  The
emag/pmag folks only make a 4 cyl version of their stuff.  Jeff Rose is
selling the biz, so I counted him out.  That left light speed and Lasar
it seems to me.  The lasars will revert to basic self generation for
spark on loss of electrical.  The lightspeeds do not.  I am choosing
Lasar.  Whadaya think?  In fact I already have a lasar timing box I got
2nd hand.  

	New 3rd Question:

	Likely I will do the Nuckols Z-14:  

	Dual batts.  I weigh 150 lbs and will fly solo a lot, so the
dual batts are as much a CG fixer.  

	Dual alts:  Less sure on this need.  But if done, 20amps vs
8amps on the pad and 60 amps or so belt-driven

	Bus structure:  Work in progress.  

	Panel:  GRT with one AHRS and 3 screens.  Back up attitude w/
TruTrak.  Back up ias/altitude w/ GRT EIS which will be panel mounted.  

	And now for a bit of humor from the new guy on the block...I
hope to be in the air by Christmas.  Thank you all very very much for
the warm welcome and the brain drain I will be (have already been) for
these 1st months.  Anybody drifting through Greenville, SC, the front
light is always on, and I just bought a new coffee pot.  

	Thanks,

	Terry

	XL RG-5

	Wings ready to glass tomorrow

	Bulkheads going in today

	Hangar 18

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

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