Yes, and a digital EGT gauge is mandatory.  The resolution on analog

meters

is not good enough to get a really close match.  I like to get EGT
differential less than 10 degrees at cruise conditions.  Having only

two

(or

three on 20B) EGTs to match is another advantage of the rotary :-)

Tracy Crook

Tracy:

What thermocouples do you use for EGT and how are they placed?  How far

from

the port?  In wells; or strapped on the outside? How long do they last.
Thanks,
Al

I used the thermocouples furnished by Grand Rapids.  (hose clamp attached
type, about 1 inch long probe).  They are about 8 inches from the port.  I
used to use the Westach probes but they only lasted about 200 hours.  These
have been working well for 275.

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

 
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