Testing the new Calderdale Flood Siren | Klaxon GP12
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- Опубліковано 6 лис 2024
- In April 2021, the Environment Agency installed a new Klaxon GP12 siren just off Stubbing Holme Road in Hebden Bridge as part of flood defence improvement works. Replacing a Secomak GP8, this siren is louder than its predecessor, and will help to alert the people of Hebden Bridge in the event of the Calder flooding. Initial testing post-installation on 22 April 2021 identified minor problems with the siren, which were duly repaired, and further tests were scheduled for 25 May 2021 to ensure that the repairs were successful and the siren is fully operational. As is often the case with the Calderdale tests, Environment Agency personnel were on hand to reassure locals that the siren was not warning of floods on this occasion, and at times throughout the video their response vehicles can be heard with loudhailers announcing the test.
The siren is part of a network of eight spread across Calderdale, with one siren in Mytholmroyd (at the fire station), two in Hebden Bridge (the other is in a Car Park near Hangingroyd Lane), four in Todmorden (at Weir Minerals, the Fire Station, Morrisons and the High School) and one in Walsden (near the railway station). There is also a siren at the Old Fire Station (now an art gallery) in Mytholmroyd, although I believe this is not a part of the network. All sirens are Secomak or Klaxon GP8s, with the exception of this location and Walsden, which has a Klaxon GP10.
The system is rarely tested, with most of the tests coinciding with the annual training exercise Operation Calderdale- but they’re only tested subject to weather conditions and river levels on the day. However, the high rate of flooding of the Calder means that these sirens are frequently set off in anger, helping residents to protect their homes against floodwater damage.
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It's interesting how American sirens have seen many changes since the 1900s yet the design of UK sirens has stayed the same. It's a very interesting case of contrasting stories.
We do have some modern sirens but there rare
@@joeduckburyofjoeducania4587 most of the time they are taken from other countries, like some parts of the UK have Federal Signal Modulators and have kept the old ww2 sirens
I agree
The only one I spotted in Dover was a 3t22 or 2t22
Those sirens were still used for a long time
Fun fact: The video is 10:12 long and thats the port ratio of this siren
Great!
@@stormboy4k hi storm it's me jake
Nice catch!
...and a complete and utter coincidence!
@@al66class59 ah yes your only a year late lmao
0:48 pretty awesome that you caught a shot of water being flung off of the rotors.
This is actually the second time I’ve recorded that. My Braehead video also had that - itd rained in the minutes leading up to both this test and the Braehead one.
That sound and the total fear 😨 it brings back from memories growing up in Chicago getting under the desks. We had no clue or training what to do if it happened. Unfortunately it may just happen in my lifetime 😕.
We don't have so many sirens here nowadays so I can't even imagine what it'd be like. There aren't that many with a real purpose near where I live!
I'm glad the Port ratios are the same as the old Syrens, the thing sounds gorgeous.
I'm still awaiting the opportunity to get an old Gents, Carter or Castle to restore for my own use but they aren't all that common down under.
I'm looking GP10 & GP12 with heaters as potential avenues for an industrial site as their site wide alarm. Else a network of smaller Klaxon Duplo
The design is fundamentally the same, although different motors have caused some alterations through the years.
I own a single-tone GP6, but am yet to upload any videos of it.
You're from Australia! I can tell because you said down under. Welcome to the Australian siren enthusiasts community, you're the 16th in existence. Any way I can contact you?
@@HX56Music are there any Facebook group etc?
If there is a collective of people, especially those with working examples nearby I'd love to see & hear them once we can travel
@@spicywolf6718 There is a group, simply called 'Siren Enthusiasts', which you are welcome to join. Considering that is a large group, full of people from all over the world, I'd also like to add you to our group chat of just Australian enthusiasts so we can discuss the sirens in our country.
New Zealand has tons of them so there might be some used ones they're reselling and that you might be able to import to Australia
0:51 Short wail
2:49 2 min. wail
5:24 Short all clear
6:42 2 min. all clear
I used to help with the testing of the flood sirens along the Norfolk Coast many years ago (sadly now removed I believe because apparently no-one knows what they mean!). The sirens used then were old war time ones. One thing I learnt VERY quickly - never stand under them when testing (or otherwise), because all the bits of bird nest, bird poo and everything else nasty you can think of ends up down your neck and on your head!!
I remembered growing up in Caister-on-Sea on sea they used to test the sirens every so often. It was really eerie. I'm 30 now and that's not that long ago.
Did you maintain the ones in hunstanton? I think there were 3 of them. When did they test?
I have just been to caister on sea. I wish they still had them so I could hear them testing. Did they have any sirens in great Yarmouth?
I remember the one on The Fairstead in Cley-next-the-sea very well. we used to have a relative who lived about 100 yards from it and from her attic window you could see straight into the end of the rotor and were just about on level with it
@@jezcolborne6329 Yes, loads. The only one left is a small siren at the power station
So erie. Can't imagine what they went through in WW2.
this siren is brand new, no way it existed during wwii
@@gianhub it still would remind old folk who HEARD THIS ATTACK SIGNAL DAY AND NIGHT IN THE 2WW AND THE COLD WAR. that's why people like you dont UNDERSTAND. This is the WW2 attack signal aswell as the cold war signal.
@@jezcolborne6329 it means the flood signal today and i’m sure people know that. thanks for the unwanted monologue and the enjoyment. it’s so funny when people like you get mad!
@@gianhub just telling you how it is
@@gianhub but some folk would ASSUME its a WW2 siren. Just saying that the old folk might be reminded of WW2 because of the ATTACK signal. The original siren this has taken over from was first used in the cold war. By the way some people like me understand that the attack signal meant an air raid or nuclear attack. Thank god it only means a flood is in the town
Wow, these brand new klaxon sirens sound amazing
Completely agreed!
Yes AWESOME
nice to see a GP12 on UA-cam sounds amazing
Yeah they are good. Was nice to hear a brand new one too!
Seeing how people think these are the typical designs for UK sirens is hysterical.
There’s the Klaxon CS8, kind of like the GP8 on the left in the video. This siren has shutters though, to produce a hi-lo tone. This siren was used to warn people of escapees of Broadmoor hospital. These sirens were replaced by the Klaxon ES series, unknown if it’s the ES2S or a different model. All 13 sirens were replaced.
There was also a Ravenstruther CS6, no shutters, very beaten up. It looked like it had bullet holes in it.
Both the Ravenstruther and CS8 sirens are found on mrmattandmrchay UA-cam channel
The Ravenstruther GP12 (it’s not a CS6 as those only have one shutter and a different, smaller rotor diameter) can also be found on my channel ;)
I did try and film the Broadmoor ones but they failed every time I went and thus I never even heard them, let alone record one going off.
These things are crazy expensive new, £11,360 is alot more than i imagined
Lol, I love how the rain came when the siren was going off.
I remember the Coventry Blitz
It would have been nice if the old siren had been preserved.
Not quite sure what’s happened to it. They said at the time it would go to strategic reserve, which could mean anything really. There’s plenty of them preserved though so one disappearing isn’t the end of the world
I surprise they still make productions of these sirens
Really cool to hear a brand new one !
when it slows down,.... that is the creepiest sound ive ever heard
Well, the sound certainly worked in the 40s... was much more terrifying back then mind
@@al66class59 but this sounds a newer attack signal because of a newer motor. Could be good for WW3 quarry or factory fire siren like they have in Scotland in stifling which is also a KLAXON GP12
I meant stirling
Thanks for the video 👍. I was lucky enough to visit Hebden Bridge a couple of months ago and see both of the town's sirens for myself (plus the Morrison siren at Todmorden), and they are quite striking to look at up close. As the weather was good, they remained in sleep mode throughout my stay, although I did bring some ear defenders with me just in case 😆. Do you (or anyone) know what's happened to the old Hebden siren - scrap, relocation within Calder Valley or sale to a WWII/Cold War museum/bunker?
From what I recall hearing on the day, they kept it as a spare/for spare parts.
Do you have a video of the Secomak GP8 going off?
Unfortunately no. It was no longer in use by the time this was shot.
In a rare way, a Secomak siren rarely appeared in Georgetown, Penang, Malaysia!
(See Imgur for the image.)
Nice! I’d love to know more of the Klaxon sirens like the GP12.
The KLAXON GP12 is like the SECOMAK GP12 but its the newer non cold war siren. It has the same DB rating at 145 DB and is louder than the GP8 at 130 DB and has the classic air raid tone like the GP8 but the DB rating would be not so loud if you were 100 feet away from the siren but this siren sure packs a powerful punch non the less as douse the GP8 and the SECOMAK GP8 sirens there at hebden bridge
pretty sure GP12s existed during the Cold War when Secomak made them.
The Klaxon CS8 Is the BEST Klaxon Siren I know
@@al66class59 yes they did but not as klaxon. It was made first by SECOMAK as the biggest British siren in the cold war HAIL THE GP12 AND THE CS8 NOT TO MENTION THE CASTLE CASTINGS BUT SECOMAK DID MAKE AND KLAXON MAKE
AWESOME SIRENS
@@doohickey-enjoyer the CS8 has been my fave too but I love the CS &GP12 as they have a nice sound to them
Nice! It sounds pretty good
Yeah! Certainly a good experience
Why is they 2 sirens?
The one on the left is the old siren, and the one on the right (being tested) is replacing it.
Be interesting to see a test of the GP10, as far I'm aware there are no videos of one
Not of the calderdale one directly (although it can be heard in one), but there are videos of GP10s sounding.
@@al66class59 what do you search to find them. I've searched Klaxon GP10 but to no avail. Also the video where the calderdale GP10 can be heard would be interesting to see. Out of all of the major UK systems this is probably the closest to me, still a good distance away tho :/
@@richardg6983 this video contains audio from the Calderdale one... ua-cam.com/video/oY154aesnkc/v-deo.html
@@al66class59 a good sound and an interesting choice of siren, cheers for the link
I’m so glad that I’m up on the hill so I can’t hear this 😅
Haha yeah! Definitely don’t want to hear it going off for real! All fine when being tested though!
It’s March 2022 and people are genuinely using this sound and telling everyone they’re testing the air raid sirens. Don’t be an idiot today, thank you.
I know, absolute insanity. People using the sound of sirens to engage in Scaremongering via TikTok is just not OK in the current climate..
i don't know how to find the real one is running OG 6913 or WDT 1975
any idea of future tests ? or next flood date
Tests are very sporadic… got lucky with this as it was one-off. I wouldn’t advise going when the valley floods
@@al66class59 was just being jocular about the floods, but obviously they get set of alot over winter boxing day being a theme that sticks out sadly. tell you what thou its great to see them still being installed, far better then socail media
@@mintysgt seems as if more may end up being replaced too in future. Part of the reason for this one being redone was the old one was perilously close to the river, but I suspect the extra volume is a benefit
You can still buy those brand new? You think you can get the old siren?
Klaxon still make GP6/GP10/GP12 sirens, yes. As for the old one, the Environment Agency plan to keep hold of it.
@@al66class59 what about the cs sirens?
@@Jd-gy7kk They were discontinued in the mid-2000s as far as I am aware.
@@al66class59 dumb decision in my opinion
From a business standpoint, it wasn’t really a dumb decision to cull the CS considering the rise of electronic sirens (which do the same job with extra functionality) and the fact nobody was buying them.
The last place to buy a brand new CS siren here (as far as I know) was Devonport in the late 1990s/early 2000s.
also what happened with the old sirens
Kept in strategic reserve.
@n e t h the new ones are in use, but the replaced/removed sirens are in reserve.
i did not know they still made these sirens, are they still making cs8 sirens?
Sadly not; Klaxon discontinued them in the early 2000s due to a lack of sales.
Why did you ad a klaxon gp12 siren i see the other one
Because they needed a louder siren, and the GP8 was about to fall into the river!
Has anyone managed to get hold of the old GP8 before going for scrap?
Don't know - but as per other replies they kept it as a spare so it could've had any one of a number of possible outcomes.
nice vid m8
thanks!
I just heard about another older siren (not the Sowerby Bridge community siren) in the Mytholmroyd area, a friend of mine is out with a bus on test and they are going up that way to see if they can see it. Is it on the flood siren system with the others?
The one at the Old Fire Station isn’t part of the network as far as I’m aware, and probably never has been, although it should still be there.
@@al66class59 yes. The one on the fire station is a flood siren and is an x cold war siren and fire siren now used for floods. They have one at the fire station at tod as well for floods so its part of the flood system
@Jez Colborne You’ve slightly missed the point- I was originally (mistakenly) referring to the OLD fire station which does have a siren, albeit not one in the network.
I am fully aware that the new fire station is meant to have a siren as well, but my original reply I’d misunderstood the question
THE LUFTWAFT ARE COMING!
Haha yes but this is a faster attack sound than the usual flood siren in hebden bridge. Its more exiting than the older sirens
Wow two Carter flood sirens
Non of these are carters. One is a SECOMAK GP8 the other a very new KLAXON GP12 THESE ARE NOT WW2 AIR RAID SIRENS. The SECOMAK is from the COLD WAR THE KLAXON IS BRAND NEW.
@@jezcolborne6329 thx
These sirens sound cool almost like cs8s
@@mineolabolt4928 the klaxon GP12 is a nice sounding siren as it has softer harmonics than the CS8 sirens but still really loud but I think the CS8s and GP8s and older British dual tone sirens have a raspy whine to them witch is more prominent with the harmonics and tones of the older sirens because of the vanes being more exposed then the vanes on the klaxon GP12S
@@mineolabolt4928 all UK sirens run off of 2880 RPM at 50 Hz and have a 10/12 port ratio or just 10 ports alone if you think about the CS6
Would be nice if they'd set off both to show how much louder the new one is
Having heard both, I can confirm GP12s are far louder. Sadly, the old one was disconnected at that stage.
@@al66class59 I wonder if they sell old sirens to small communities who can't afford a shiny new one, they do in the U.S and Canada, rarely ever is a working siren actually scrapped, often times they're refurbished and sold as there's more money to be made when compared to scrap value
@@vacexpert2020 what generally happens here is removed sirens are kept in reserve (like with the one here) or sometimes donated or sold to museums/enthusiasts. Very rarely are they scrapped here today, especially 'classic' sirens like the ones in the video, but that is probably due to how few there are.
@@al66class59 I wonder what happened to the old Broadmoor sirens, and around here even "classic" sirens like the Thunderbolt and the 2T22/3T22 are more often refurbished and sold to small towns, the Thunderbolt is an interesting siren as it has a supercharger at the base of the siren which forces air into the choppers and makes for an unpleasantly loud outdoor warning siren
@@vacexpert2020 Broadmoor is an exception to the general 'classic' siren survival rule, as the NHS Trust controlling the hospital decided to scrap all 13, without exception; not only were they becoming unreliable mechanically and electrically, but there was also a desire to prevent any second-hand buyers setting them off and causing undue alarm and panic among locals. Considering what the sirens sounding represented, I understand why they've taken that decision.
why is there 2 side by side?
The old one and the new one.
This siren sounds off..
It may sound “off” but the environment agency signed it off after these tests so I can assure you it’s not “off”. (Seems there’s a new motor type on this, and I’ve not heard anything else powered by the new style motor - maybe that’s why)
It had minor issues after its first tests but those were resolved and the tests filmed here were to ensure those repairs had worked.
That’s definitely it then. The motor sounds a bit higher pitched than normal. How loud was it?
They’d given us earplugs so I can’t really comment on exactly how loud it was - clearly loud enough to warrant free earplugs!
Ah. The reason I’m asking is next week Friday I’m going to film the Rampton system. It seems like I definitely need to bring some ear protectors!
@@thewashateriawandererzayne4376 oh really next week I'm filming Grangemouth Semmi Annual cause I live close and btw I hope you get a good test
L’ancienne sirène va être démontée du poto vers ?
Oui, elle est démontée maintenant.
@@al66class59 ou elle est partie ?
@@julienboller2165 malheureusement je ne sais pas exactement, mais les personnes qui était là m'ont dit qu'elle va être gardée en réserve.
@@al66class59 elle fonctionne encore le moteur est en bonne état ?
@@julienboller2165 je presume qu'elle fonctionne, mais je ne sais pas.
10:00 rip 🪦 SECOMAK GP8
Pourquoi l’autre dû poteau vers ne sonne pas ?
Il y a un image que je n’ai mis pas dans la vidéo. Il montre le poteau vers le camera et c’est très près de la berge de rivière, parce qu’il a été érodé.
La sirène loin de la caméra est une sirène nouveau pour replacer la sirène vers la caméra.
La siren qui est a la droit replace la siren du poteau vers
La sirène sur le poteau de gauche a été désactivée et remplacée par celle qui sonne à droite 😉
0:53 woooosh
What is it with Britain and horizontal sirens? Vertical ones have much better sound dispersion. On a horizontal, effectively half the sound is either thrown straight into the ground or in the air.
Don’t know. It’s worked for us you a long time already though!
In fairness this thing was definitely loud enough and considering there’s multiple in the area, they do the job pretty well
Sound like a kalxen c8s
Sowerby bridge needs one
And indeed has one - but not in this format. It uses an extra/special tone on the church's electronic bells.
@@al66class59 it's not too good though no one can hear it
@@elwolf8536 Sounds like you do need one of these then!
@@al66class59 100%
I See A Casting Castings SIren
The one in the foreground is a Secomak GP8 rather than a Castle Castings manufactured one.
Two air raid siren
Super
Thanks!
Storm
Shame the GP8 will be cannibalised for parts
It may be reused but if it is stripped for parts, so be it. Least others will survive.
Sowerby bridge needs it the one we got is piss poor
@@elwolf8536 what is the siren at Sowerby Bridge and where is it? I've tried to find it on maps but to no avail
@@richardg6983 its the bells of Christ church and a tone, all electronic
@@elwolf8536 interesting, I heard it was at the church but that's it. Yeah you're right, they need something better lol cheers for the reply.
my ex Meating my current gf
Why are there 2 sirens?
The smaller GP8 siren was decommissioned when the new, larger, louder GP12 was installed. The GP8 has since been removed and put into storage, as far as I am aware.