Re: Gyroscope does work?

Richard Herring <junk@[127.0.0.1]> wrote:
In message <o9vtc4-lp3.ln1@xxxxxxxxxxxxxxxx>, jimp@xxxxxxxxxxxxxxxxxxxx
writes
Sam Wormley <swormley1@xxxxxxxxx> wrote:
G=EMC^2 Glazier wrote:
Sam A gyrocompass makes use of the gyro to indicate direction. The axis
of the gyro rotor is set in a north south direction,and the rotor is set
spinning. The gyro is connected to an indicator so that as the ship or
plane carrying the compass turns,the gyro keeps the indicator always
pointing north. The gyro is connected to a weight,and this weight acts
as a pendulum,so it the gyro begins to point away from north,the
pendulum tilts the axis of the rotor Precession then occurs to bring
them axis back to true north Sam I still have my compass given as a
present on my 8th birthday. I know my compass stuff Bert


I hope you have your compass with you on the ship or plane when
all the power fails and you set off in some direction in your life
raft, Herb.

FWIW, the gyros in small aircraft without redundant systems are usually
powered by engine produced vacuum so an electrical failure becomes a
minor irritation instead of a crisis.

The equally frequent failure of the graphite blades in the vacuum pump
render this "advantage" somewhat moot. We don't practise partial-panel
instrument flight for nothing ;-(

Well, I would debate the use of "frequent" and vacuum pumps usually
fail progressively rather than suddenly, but that's why I have a knob
labled "aux vacuum".

--
Jim Pennino

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