Gyro Suction High

[peterhemm]

Noticed the gyro suction showing high, something I've not seen before. Any reason for this? BTW, no active failures atm.

[schultenh]

It actually shows low. It looks like you are still on the ground. When the engine is at a low power setting, the bleed air from the engine is not enough for the ejector to produce a sufficient vacuum. Once you advance the throttle it should rise.

[Black Square]

It can also read lower in the green band when operating at the service ceiling of the aircraft. My TBM and Dukes also have a "Partial Vacuum" failure, which reduces the vacuum suction or instrument air pressure to around half of whatever it would normally be, as if the pump's impellers have lost several vanes. This goes hand-in-hand with my new gyroscope physics simulation, as the result will be a sluggish gyro, which could become violently unstable if too much torque is applied by the motion of the aircraft.

[peterhemm]

@schultenh oops, didn't realize the gauge markings went high to low.