[simpits-tech] How do you deal with temperature inside the pit?

[Craig Rochester]

Hi Rod,

Sounds like you have a well thought out plan.  That's a good idea to cool
the panel and monitors with ventilation and having  the A/C for the interior
separate.   The "mixing box" for modulating the A/C temperature is perfect.
You'll get a nice, even supply temperature without the cycling on/off with a
thermostat type control.

I've done a little searching for info on the F-16's A/C and found this link
for the "F-16C Air Conditioning Panel":
http://home.att.net/~sfinger/F16aircond.htm

Any idea what RAM, DUMP, and NORMAL - AIR SOURCE means?  Am I correct in
assuming the left dial is a proportional control like on a car?  Anyone know
where the ducts and/or nozzles are in a jet?

Craig R.

-----Original Message-----
From:	simpits-tech-admin@simpits.org [mailto:simpits-tech-admin@simpits.org]
On Behalf Of Rod Dale
Sent:	Wednesday, November 27, 2002 12:17 PM
To:	simpits-tech@simpits.org
Subject:	Re: [simpits-tech] How do you deal with temperature inside the pit?

The thermosensor normally sits in or near the air exhaust outlet in the
cockpit. Most I've worked on have this outlet in the rear bulkhead behind
the seat somewhere.
I'm going to duct my room aircon in/out of my F-111 as per Craig's diagram.
The outlets will be - 2 eyeball types in the centre overhead beam assy and
one in each footwell (pilot and nav). These will have small PC power supply
type fans in them to force the air out. I'm planning on making a servo
controlled valve to allow more\less cool air in. This air will mix with the
ambient room temperature and hopefully make it reasonably comfortable. The
servo will be controlled from the F-111 Aircon panel.
To cool the monitors I plan to have an exhaust fan in the front that will
draw the hot air out from behind the instrument panel and two vents low down
on either side for the incoming room air.
I'm going to use the cabin pressure gauge as the temperature indicator, with
sensor located near the exhaust air outlet.
When I draw this up I will upload it.
Rod

----- Original Message -----
From: Sean Galbraith <sean.g@paradise.net.nz>
To: <simpits-tech@simpits.org>
Sent: Tuesday, November 26, 2002 9:42 AM
Subject: Re: [simpits-tech] How do you deal with temperature inside the pit?


>
> >Would someone like to come up with a temperature gauge that shows the
> >temperature inside the cockpit replacing an engine temp gauge or other
> >gauge, would that be too tacky?
>
> I would imagine that most military pit's would have an A?C panel anyway,
> with a thermostat in it.  I know the (1970 vintage) A-4k does, midway down
> the RH-Wedge panel....  Why not just use that?
>
> Sean.
>
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