"Jack Glendening" wrote in message
k.net...

In the meantime I plan to get a T fitting and put the LNAV
on the airspeed pitot pressure as being better than nothing and
getting me back up in the air.

Not quite sure what you meant by the above comment. The pitot for the L-Nav
should always be connected to the same pitot port as the airspeed indicator.
If you use the L-Nav for speed-to-fly info, it should come from the same
source as supplied to the airspeed indicator that you fly by. Of course
this is not necessary. You can have L-Nav info based on one pitot reading
and airspeed indicator based on another. But, it would be nice to have the
info correlated. Hopefully both pitot reading would be the same, but, that
is not always true.

Duane