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Constant siren sound after shutdown?

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robains View Drop Down
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    Posted: 02 Jan 2018 at 6:37am
In the XP11 version, I have a constant faint siren sound that never goes away even after I completely shutdown the aircraft and turn all power off.  The only way to stop the siren is to switch to a different aircraft (not variant but completely different aircraft).

Cheers, Rob.
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Martyn View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Martyn Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jan 2018 at 10:21am
Hi Rob,

The only siren that I can think of is the ELT which is controlled using the switch to the left of the pilot. It is set to the auto position by default, which triggers the ELT if you exceed 4.6G.

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Martyn
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ThomasAH View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ThomasAH Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jan 2018 at 11:03am
"faint siren" could be the vacuum pump for the gyro, too.

Edit: Or a rotating beacon?
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robains View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote robains Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jan 2018 at 3:29pm
Hi Martyn,

I think that was it, I did exceed 4.6G with a couple of aggressive maneuvers.  But shouldn't that siren be extinguished when the aircraft in completely powered down ... or does the siren run on some other power source?  Also, is there a button/switch to disable it?

Cheers, Rob.

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Martyn View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Martyn Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jan 2018 at 3:58pm
Hi Rob,

I think it has an independent power source but not 100% certain. You should be able to switch it off using the ELT switch or by reloading the aircraft.

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Martyn
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ThomasAH View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ThomasAH Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jan 2018 at 5:16pm
I would hope any ELT has an independent power source, because it should continue working after a crash :)
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