The entire country of Singapore has quite a few hundred Hormann ECN-series sirens. I heard there's also a Thunderbolt 2000 (T?) (Not even a typo) installed in there, but my assumption is that it's inactive due to the fact it's surrounded by electronic sirens. Anyways, since Malaysia's tsunami and h...

Sorry for telling you guys too late, but I expect the Pavian near my school might sound for this Tuesday's Disaster Preparedness Drill. Couldn't download it, so just screenshot that. Those who lived near this could give some hope.

How many sirens are in Malaysia's system? Around 300 or so? I didn't have time to hunt every single of them, found around 15 of them. But the main point is that Penang Island and Langkawi Island, Kedah is littered with bunch o' them, excluding some British WW2-Era sirens. Basically, West Coast area...

The entire country of Singapore has quite a few hundred Hormann ECN-series sirens. I heard there's also a Thunderbolt 2000 (T?) (Not even a typo) installed in there, but my assumption is that it's inactive due to the fact it's surrounded by electronic sirens. Anyways, since Malaysia's tsunami and h...

The entire country of Singapore has quite a few hundred Hormann ECN-series sirens. I heard there's also a Thunderbolt 2000 (T?) (Not even a typo) installed in there, but my assumption is that it's inactive due to the fact it's surrounded by electronic sirens. Anyways, I might can say Malaysia's tsu...

If that part on the back really did project sound through the top horn as well as on the front, how would that rear rotor/stator get air in to produce the sound, because I can’t see any kind of air intake on that side. Interesting... The slightly rectangular tail on the rear of the siren is open at...

Twin Secomaks on a Police HQ in Foentown Georgetown, Penang Island, Malaysia.



When I first saw this IRL I see only one, but Jake_7367 posted another picture (Above) that there's actually two of them.

Any size comparisons of every single model? I'm thinking of modelling them in ROBLOX in the near future.

to an extent, yes. more air would be able to escape at once, so the blower would not be able to build as much pressure, sacrificing the high decibel level of thunderbolts The 1000 has only 5 wide openings and can reach up to 130dB. I think the factor here is the width of the chopper holes. If you s...

I wonder why don't they just order up a rotating Defender with transparent housing that also houses the beacon? There's also a community behind it.

EDIT : Noise complaint perhaps?