Thread: Bohli Compass
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Old November 1st 15, 01:03 PM posted to rec.aviation.soaring
Chris Rollings[_2_]
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Default Bohli Compass

At 08:13 01 November 2015, krasw wrote:
sunnuntai 1. marraskuuta 2015 9.00.07 UTC+2 Chris Rollings kirjoitti:
You can fly IMC (ie climb in thermals in cloud and straighten up on a
heading) on just a Bohli, ASI and slip ball, I have done so in the past

to
prove the point. It is very high workload and taxed me near to the

limit
and I have far more cloud flying experience in gliders than most

pilots.

Then you could do it also by looking at gps track instead of compass. I
have only enough IMC experience to not try that kind of stunt.


Actually, that's not the case, a Bohli gives (by inference) angle of bank
information as well as heading. If the indicator is tracking
concentrically with the instrument then the instrument is tilted to the
aircraft's angle of bank. If it isn't the you change the angle of tilt on
the compass until it is.