AADX wrote:That looks great Mario. what happened to the engine on the route? running it too lean?
and something tells me you're going to do most of the whole trip in the dark. hehehehe
Honestly I really don't know what happened. I was flying in 15.000 ft and the autopiloted had just started slowly descending for the approach to Sydney, with about -3 degrees.
Suddenly the engine sound changed, and the speed decreased. I checked fuel flow, it was good. The "fails" page in the Avidyne was not telling me anything useful, so I checked in the X-Plane failure settings and some engine components were blinking red. But the reason...? I don't know. Maybe the mixture was not too lean, but too rich for 15.000 ft. I felt a little bit helpless. I was still above the sea and too far away from a landing spot. Using the parachute was not an option, so I "repaired" the failed components and restarted the engine. So I was able to gain back control over the plane and continue the flight to Sydney.
But I was worried that this could happen out of nowhere again. And indeed, it did!!
On my next trip, from Sydney to Dulkaninna (a small desert airfield), when the weather was good, and in daytime, the plane was flying wings level, following its GPS. I did not touch the controls since hours. All gauges where in green range, fuel flow was good, too. Again in 15.000 ft, suddenly speed decreased and the autopilot stupidly trying to hold altitude, making the plane nearly stall again. Same game as during the last incident: Checking the Avidyne's failure page did not tell me anything, but X-Planes failure settings told me again about failed engine components. Okay, I "repaired" it again, and started to regain control, but this time I was too hard on the controls, causing the wings to fail, making the plane uncontrollable.
So I decided to use the parachute. Pressed the button, suddenly everything was becoming red, and then it got all quiet. Slowly and slowly turning I sank to ground, hearing only the winds of the Australian desert, and the PFD still showing me altitude and speed. With the rudder, I was able to control the descent so the plane was not spinning all the time.
After about 10 minutes, I softly touched the ground, survived.
It was nearly a romantic experience.
I also made a movie of this event, which I will post on YouTube and in my weblog as an outtake of the journey.
In general, I wonder why on two flights following after another I had engine problems, although all the gauges did not show anything critical. Also, 15.000 ft is well in the service altitude of the Cirrus. Of course I had active pitot heat, windshield heat and propeller heat. Fuel was okay everytime, I also used the fuel pump when switching between left and right tank.
Maybe the mixture was too rich for the altitude, or I was flying too fast (but I think this can't be, because on the trip to Sydney I was really slowly, to save fuel; only on the trip yesterday I was flying about 160, because I had enough fuel).
Or X-Plane is simply creating too much failures.