David Megginson <[EMAIL PROTECTED]> said:

> The AI now runs off the vacuum pump, though in a relatively simplistic
> way.  The instrument keeps track of its spin, and will slowly spin
> down when there is no (or insufficient) suction available or quickly
> spin up when suction becomes available.  The movement isn't quite
> right (especially the spin-up), but it is sufficient for some IFR
> practice.  To kill the AI, either disable the gauge itself by setting
> /instrumentation/attitude-indicator/serviceable to false, or kill the
> vacuum pump by setting /systems/vacuum/serviceable.  When the engine
> is running at under 1500RPM, the gauge will also be unreliable.

Neat new feature.  Any idea if the all attitude AI/DG like the one used in the
A-4 is vacuum or electric powered?

Best,

Jim

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