Right gear collapse on Flybe Q400 (video) Feb 23rd

[GyvAir]

lol.. maybe. I'd like to think that it could turn on residual oil before seizing longer than that, though. I've seen PT6s sit windmilling for days...

[J31]

Left engine continues to run throughout the evacuation. Were they not able to shut it down!?

Was windy out and gusting close to 50 kts, it's a free turbine and with those winds the props will definitely be rotating. That's my guess.

Not a chance. Ever tried to spin that Dowty prop by hand? worst wind I've had in the Q was about 45 knots at 90* on the ramp, and the prop maybe made one revolution every 10 seconds or so. That engine was definitely running.

I agree, it was still running. It may windmill for a few seconds after shutdown but with no oil pressure it would feather shortly.

[av8ts]

Left engine continues to run throughout the evacuation. Were they not able to shut it down!?

Was windy out and gusting close to 50 kts, it's a free turbine and with those winds the props will definitely be rotating. That's my guess.

The Q400 engine is not a free turbine

[GyvAir]

Left engine continues to run throughout the evacuation. Were they not able to shut it down!?

Was windy out and gusting close to 50 kts, it's a free turbine and with those winds the props will definitely be rotating. That's my guess.

The Q400 engine is not a free turbine

How slow can you run one? That prop appears to be running around 30RPM. It looks actual to me, rather than a trick of the digital video camera sampling.

[duramaxguy]

The PW150A is certainly a free turbine and props will easily be spun by wind. If the wind hits at the right angle it will easily spin continuously with pretty light winds. (15kts ish).

[av8ts]

Your right it is a free turbine. I was just thinking about the difference from the PT6

[goingnowherefast]

It's got a lot more in common with the PW120 series than the PT6. Power shaft runs within the compressor shaft. Google is actually pretty good at explaining this series of engine.

[tps8903]

Video from inside the cabin.
https://www.youtube.com/watch?v=cgSs7a3AeE4

It would be cool to see the marks that prop left in the pavement. You can see the prop and pavement turn to dust in the video.