* > Keith Moore wrote:

For the water system conditions, you may find the new West Tack

gage

of

interest .

The gauge displays the coolant system temperature and coolant pump

output

pressure (corrected for system pressure).   In addition the gauge
incorporates warning lights to indicate low coolant condition

(yellow),

low

pump output pressure (red) and high system temperature (red).

The gauge is designed to fit in a standard 2.25" instrument

mounting

hole. A

separate box containing the driving electronics is mounted in a

concealed

location behind the instrument panel.

In addition, electrical outputs are provided for each warning

light

condition so as to allow an audible warning to also be provided

Check out http://www.liquidcooledairpower.com/cj-gauges.shtml  for

more

details.

Keith (BlackHat) Moore
Long EZ in progress

BTW I checked the price for the gauge: $870 !!!
Bulent

Ha! Those guys are nuts!

BTW McMaster Carr has some great prices on analog gauges of all kinds.
High quality industrial type stuff. I got this cute little 2 3/4
vacuum gage that reads 0 to 30 inches of Mercury. Opposite to
a manifold absolute pressure gage. Subtract the number on the gage
from 30 and you have the manifold pressure in inches of Hg.
Was made by Marsh Instrument Company part number J4605.
You cannot beat the price at $14.95

There is now no excuse for all you guys flying rotaries to
not install one of these and tell me what the manifold pressure is
when you report RPM, speeds and EGT's :-)>

Paul Lamar

Not quite so easy on the vacuum gauge.  You must also factor in altitude.
Subtracting 1" Hg per 1000 feet will get you fairly close.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

I don't think so Tracy. It works just like a manifold pressure gage.
 When you are at 8,000 feet with the engine off 
or WOT a manifold pressure gage reads 22 inches of Hg. This gage will 
read 8 inches of Hg under the same conditions. 30 - 8 is 22. 
This gage is an absolute vacuums gage. It read zero at sea level
more or less and 30 with no air pressure at all.
 
Paul Lamar
 
The AirCraft Rotary Engine NewsLetter.              Powered by Linux.
ACRE NL web site.
http://home.earthlink.net/~rotaryeng/            http://www.linux.org