On May 18, 2:19 pm, terry wrote:
On May 19, 7:08 am, Mxsmanic wrote: A Lieberman writes:
Yep, go ahead, try leveling off with an AI ERRONEOUSLY showing a 20
pitch up. Go ahead and trust that instrument.

The AI is the most reliable instrument on most aircraft, after the magnetic
compass. And of course you'll want two, just in case one fails, for IFR.

Would love to know what your sources are on that information MX. in
all the aircraft I have flown both the AI and DI were powered from the
same vacuum pump and the pump is the most common cause of failure of
gyroscopic instruments. How do I know that? not from any books I have
read, and I have many on aviation, but from first hand advice from
several flying instructors, and actually had a vacuum pump failure in
a Warrior on one of my PPL flight tests ( and you are not allowed to
ask why I had more than one test :) )
Terry
PPL Downunder

I like the Mxsmanic type. We could get him into the
right seat of some fella puttin in hours for a split on
the rent & gas.
Ten minutes later, I figure the Left-seater would say
SHUT the F##K UP, I'm trying to drive the friggin
airplane. I'd love a tape recording of that, bla-bla-bla.
Seriously MX, you oughta jump into the right seat
for some fun.
Ken