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From: "Greg Ward" <gregw@onestopdesign.biz>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-4922982@logan.com>
Subject: Re: [FlyRotary] Re: intersting video
Date: Fri, 25 Mar 2011 21:41:54 -0700
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Hi Jarrett;
You are right, and we have asked that same question.  We are hoping that the 
way it is configured will help steer (sp?) the airflow into the cooler on 
the ground, and, after in the air, hopefully, it won't matter.  We made sure 
to have the intake mounted high enough off of the fuselage, to get the max. 
air we could.  Only flight testing will tell now, unless someone out there 
has some input.
Greg

----- Original Message ----- 
From: "H & J Johnson" <hjjohnson@sasktel.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Friday, March 25, 2011 7:37 PM
Subject: [FlyRotary] Re: intersting video


Greg, I can't remember if I've asked this in the past, so forgive me if I 
have.

How is the air from the boundry layer divider [diverter?] going to get out 
around the plumbing conduites [running back from the firewall]?
From this last front shot, it looks like the 'conduites' are sorta 'fencing' 
in the air the would normally get diverted out the sides.

I'm sure I'm missing something [just the angle of the shot] but thought I'd 
ask.

She's going to be a speed demon!!

Jarrett Johnson


> One more shot with gear doors shut.
> Greg
>
> ----- Original Message ----- 
> From: "Thomas Giddings" <tom@midwestaviation.net>
> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> Sent: Friday, March 25, 2011 4:54 AM
> Subject: [FlyRotary] Re: intersting video
>
>
> Greg: I also thought about the P51 style scoop. I do think it is a
> great
> idea. I have a landing gear that retracts into the fuselage and
> there really
> is not much room for a belly scoop. Could you post some Pics of
> how you did
> this. How Big is the Radiator and scoop and where did you place
> the oil
> cooler. By the way if any of you are at Sun N Fun next week .
> Please stop by
> and say Hi. I will be in Building A booth 67 all week. I plan on
> getting out
> and looking at some flying examples if possible. and maybe  see
> some of you
> folks then.
>
> Tom Giddings
>
> On Mar 25, 2011, at 12:43 AM, Greg Ward wrote:
>
> > Hey Tom;
> > We looked at this scenario when we were laying out our Legacy,
> and
> > determined that it was packing too much into a cowling that
> already had a
> > large intercooler, and a turbo that was guaranteed to be
> radiating about
> > 1400 to 1900 degrees of heat.  So, the question was, where to
> put a
> > radiator, oil cooler, etc. outside of the cowling?  We settled
> on a P-51
> > scoop for both, and built it exactly like the original, hoping
> for a
> > little thrust return.  Difference was, we kept the radiator out
> of the
> > fuselage, because we didn't want a leak in the cockpit at 20+K
> feet, with
> > all that entails.  We are also looking at installing a hot water
> heating
> > system, with valves both in and out for the very same reasons.
> So, what
> > we have left is, the engine, intercooler, turbo, and whatever
> goes on the
> > firewall, with a lot of air going through, to hopefully keep
> everything
> > happy.  The flaps on the scoop should enable us to keep temps
> under
> > control, a' la P-51, so we'll see.
> >
> > Greg Ward
> > Lancair Legacy N178RG, Still in progress
> >
> >
> > ----- Original Message ----- From: "Thomas Giddings"
> > <tom@midwestaviation.net>
> > To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> > Sent: Thursday, March 24, 2011 8:59 PM
> > Subject: [FlyRotary] intersting video
> >
> >
> > Here is a youtube engine test run of an LS1 V8. Watch it long
> enough to
> > see how the dual radiators are plumbed. This system for engine
> cooling
> > includes two radiators which appear to be in series. It  seems
> to be going
> > from the thermostat housing to the top of the first radiator
> then is taken
> > out the bottom of the first one and crosses over to number two
> at the top
> > inlet and back out the bottom into the pump and back through the
> block
> > .They are both dual pass radiators . They feed this air from two
> outside
> > the cowl scoops. Bud Warren claims this cools very well. In fact
> he claims
> > it is the only way to cool the 300HP LS1 V8's . I wanted to
> original
> > install a LS3 into my Questair, but could quite get it stuffed
> in there .
> > http://www.youtube.com/watch?v=CUSbOAZRRtg. If this link does
> not work
> > search youtube for Franks Bearhawk Test run. Incidently they
> claim they
> > need 1256 Sq In of radiator surface to keep the V8 running at
> 190 in
> > cruise and 200 max in the climb. Also if you to geared drives
> yahoo forum
> > there is a very interesting read on the subject on cooling
> requirements
> > for the LS1.
> >
> > Tom Giddings
> > VP Avionics Sales
> > MIDWEST AVIONICS
> > 200 Hardy Roberts Dr
> > PO Box 219
> > West Paducah,KY 42086
> > 877-904 9966
> > Cell; 727 858-1772
> > FAX:270 744 3466
> > tom@midwestaviation.net
> > Online Store
> > www.midwest-avionics.com
> >
> > <Image00010.jpg><P1010273.jpg><Mail Attachment.txt>
>
>
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