Global Express XRS device extended from nose door

[LeanOfPeak]

Really curious what this is extended from the nose of VH-LAW this morning at YSSY. I'm sure I'm showing my lack of internet searching skills, but haven't been able to answer my own question so far.

https://cimg7.ibsrv.net/gimg/pprune.org-vbulletin/2000x1124/vhlaw_3221df26654d1b9d04c23257392e732e4a3bea41.jpg

[kjvmw]

Pretty sure it's the RAT

[Slowwtation]

Machine gun?

Definitely the RAT, standard to deploy in flight if going in for MX.

[eckhard]

Yes, it's the Ram Air Turbine, which provides emergency electrical and hydraulic power. Unless this aircraft suffered a real problem, the most likely explanation is that the crew were conducting an in-flight check of the system, as part of a regular maintenance check.

We did one recently and it worked fine but was very noisy!

[LeanOfPeak]

The flight path does look like it was maybe a check flight of some sort. I didn't hear anything unusual on the radio. If it was a real issue, then well done to the crew because the landing looked completely normal. Thanks for the help.

[Near Miss]

It looks like a RAT but it actually shoots
https://cimg3.ibsrv.net/gimg/pprune.org-vbulletin/284x160/lasers_3038b6fc8f80b64144cf56615beffe785ba46f81.jpg

[galaxy flyer]

Checked every two years, AFM procedure for qualified pilots to conduct the test. Easiest to have a tech in the jump seat run the checklist and record the values.

[Tinstaafl]

I had an uncommanded deployment of one in a CRJ-200 one night just as we rotated. Bloody noisy and you can feel a vibration through the seat and your feet.