On May 18, 9:23*pm, Le Chaud Lapin wrote:

It is pretty cool to see that 90% of this thread is useable info
coming from experts sharing their opinions. *This non-combative type
of exchange helps newbies like myself learn.

Unfortunately, I'd suspect it's about to change..... Mx stepped in.
I am not replying to his post so I dont' contribute to any additional
noise and he doesn't understand the real world environment of flying
an airplane.. Hopefully others will respect Dudley's request.....

Also, I read somewhere that JFK Junior's plane crashed probably
because he did not trust his intstruments. *What's the likelihood of
that?

Hopefully for an instrument pilot, NEVER, but when you have an
instrument go out, it does up the anti in IDENTIFYING the problem and
then tossing that instrument out of your scan.

In my case, the change was pretty dramatic as it happened after
departing and in my climb in my departure as I was entering IMC.
Everything was absolutely normal on my first 1000 feet of climb and
nothing had changed on what I felt in the seat of my pants when I saw
the AI start showing a pitch up just about 100 feet inside IMC. Had I
really pitched up that much, I would have felt it. The lack of
feeling it immediately made me look at my VSI and it was rock solid
700 fpm climb, no change from below the cloud deck. Next instrument I
looked at was my airspeed and that was 90 knots, so secondary
instruments confirmed a normal climb and further confirmed my lack of
feeling in my butt indicated the AI was ghosting up on me.

I believe it's not normal to get such a dramatic change like I did,
but then again, as I am still finding out, it may not be the vacuum
pump, but the vacuum pump regulator that went out on me in my plane.
Will find out tomorrow morning when I talk with the A&P.