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PostPosted: Tue Mar 16, 2021 2:12 am 
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In many films such as Close Encounters of the Third Kind or Invasion U.S.A., Hollywood portrays helicopter mounted P.A. systems as reality.

Do such things exist? Seems like a work of fiction as the noise of a helicopter would likely drown out any helicopter mounted voice capable P.A. plus the added weight on a helicopter doesn't seem feasible.


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PostPosted: Tue Mar 16, 2021 2:37 am 
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According to this small article : https://www.powersonix.com/helicopter.php

They exist.

In short, this article pretty much supports the brand and model, (Power Sonix's helicopter-mounted speakers). Earlier in the article, Kev (the consumer), rants about how their old speakers sounded horrid and how it also made it incredibly risky for the pilot to give PA instructions clearly (as the pilot had to fly low at 200ft and a slower speed at 20knts), but now that they got these new speakers, they can easily give PA instructions clearly as the pilot can fly at a safe 800ft above the land while going 50knts.

In the bottom you can find a little table going over the specifications (dbc, effective range) of the speaker models you can obtain.

Overall this is an interesting creation that exists and gets the job done according to Kev who ironically used to/still works with San Diego's Police Aviation Unit.

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PostPosted: Thu Mar 18, 2021 8:22 pm 
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I know the U.S. Army had them during Vietnam. They were famously, or rather infamously used for Operation Wandering Soul which was basically a PsyOps campaign to encourage defection of NVA and VC forces via tapes played through loudspeakers on said helos. You can read more about it online.

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PostPosted: Fri Mar 19, 2021 12:07 pm 
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Brendan W wrote: *
I know the U.S. Army had them during Vietnam. They were famously, or rather infamously used for Operation Wandering Soul which was basically a PsyOps campaign to encourage defection of NVA and VC forces via tapes played through loudspeakers on said helos. You can read more about it online.
That's quite interesting.

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PostPosted: Sat Mar 27, 2021 7:08 pm 
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chefiBG wrote: *
According to this small article : https://www.powersonix.com/helicopter.php

They exist.

In short, this article pretty much supports the brand and model, (Power Sonix's helicopter-mounted speakers). Earlier in the article, Kev (the consumer), rants about how their old speakers sounded horrid and how it also made it incredibly risky for the pilot to give PA instructions clearly (as the pilot had to fly low at 200ft and a slower speed at 20knts), but now that they got these new speakers, they can easily give PA instructions clearly as the pilot can fly at a safe 800ft above the land while going 50knts.

In the bottom you can find a little table going over the specifications (dbc, effective range) of the speaker models you can obtain.

Overall this is an interesting creation that exists and gets the job done according to Kev who ironically used to/still works with San Diego's Police Aviation Unit.
Thank you for the info! Thought they were a total Hollywood creation. :D


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