The Haunting RAVENSTRUTHER SIREN TEST! IT'S LOUD!! (Best ever siren video!)

This BEATS THEM ALL - I've filmed lots of sirens from the Broadmoor system, but this one.... I'm almost speechless! So it's probably easier if you just watch the video (oh.... and it would certainly help if you have an interest with old sirens!)
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BTW, the pronouciation of "RAV-EN-STRU-THER" - nope!!! According to youtube user 'cgiof3ln' it's pronounced "Renstree" or "Reinstree". ...I mean, that would have been my second guess!? (sarcasm!)
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SIREN MERCHANDISE now available from www.mrmattandmrchay.com
If you like my videos, please consider subscribing, thank you!
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As discussed, those who were in the Premiere, here are some links from some of you:
From: 'Alfie Woolard' and 'Jack P' - link to: UK SIREN MAP/DATABASE
drive.google.com/open?id=1wkc...
From: grandinosour - link to: BIGMIKESOCAL - CHRYSLER-BELL VICTORY AIR RAID SIREN (Loudest siren in the world)
• CHRYSLER-BELL VICTORY ...
From: The Dalek Core - link to: 911caddy - Qualicum Beach Fire Siren
• Qualicum Beach Fire Si...
From: BritishSirenRecordings - link to: Severnside Siren Test - Pilning Surgery
• Severnside Siren Test ...
From: BritishSirenRecordings - link to: e57michel - STRONG German HIGH-POWER-SIREN
• STRONG German HIGH-POW...
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THE MRMATTANDMRCHAY CHANNEL, established 2009:
I'm passionate about uploading quality and interesting videos for YOU, my audience.
What is my channel about? "Old lift machinery made interesting", old air-raid sirens, prehistoric alarm equipment - things that I find fascinating and I hope you will too. If "I" don't find it interesting - IT DOESN'T GET UPLOADED!
I always spend a lot of time editing my videos with animations, video in-sync with music and voice overs to make them this way. I'm also a perfectionist!
My moto - "Quality NOT Quantity" - spending a month editing a video is not a rarity!
But without you, I'm nothing here. Thank you so much for watching.
...mrmattandmrchay is me (Matt) and my son Chay.

[@mrmattandmrchay]

THANKS TO EVERYONE that attended the Premiere - it was the best yet!! :) :) Please check out video description at the bottom.

[@residentelect]

Now then Matt, my siren knowledge is not quite what it should be! With that in mind, may I ask a question? These sirens are tested at regular intervals, but apart from yourself I don't see any other individuals or engineers/personnel monitoring the actual output of the siren...? Is all the testing done remotely via telecoms, or do they rely on information from locals to let them know the siren is working as it should? Judging by the state of this grand old specimen, I can't imagine an engineer has been present during testing for many a year?!

[@DigitalSirens]

your welcome!

[@CycloneJoey518]

It was really fun

[@ajs2120]

Sadly I missed the premiere, but was lucky enough to catch the video no less than an hour after going live!

[@LukiRudaka]

I would go record more sirens.... But sadly THERE ARE NO SIRENS AROUND HERE in Florida. Might be able to catch Mobile, AL's siren test though if im lucky/

[@bjornroesbeke]

There's such a fun, relaxing playground for children nearby. I can understand why no one's playing there at this time of day.

[@KnittingPasta]

Bjorn Roesbeke I would play there

[@marthawallace9337]

Lol yes

[@Electronichub_05]

My old Kindergarten had a German DS977 siren on top. Every time it went off it got amplified by all the kids crying 😂

[@LukiRudaka]

"Where the locals drive their red cars backwards" I don't know why but I find that funny

[@MidwestSirenProductions]

Ouch! Sounds like this old brute needs some oil in the bearings!

[@2002_bugeyewrx]

Yeah man... You can hear the Motor Scrathching the stator

[@TheMatthooks]

@@2002_bugeyewrx oiling the insides of the motor is generally frowned upon. Has a habit of gathering gunk and turning it in to a nice abrasive paste that makes things wear about six times as fast.

[@LukiRudaka]

@@TheMatthooks Yea, lithium grease tends to be better

[@Thunderbolt_7026]

I think they should replace it

[@debrabinnicker7376]

No Need For Oil Because This Thing Wouldn't Be As Loud As It Is Right Now

[@fionag4303]

I live here, and it goes off every second Thursday, the only time you know it's One o'clock! It's set to go off if we are at war as well!

[@sitech9261]

This siren needs a Service! Nice video!

[@kianthetrainspotter7777]

Badly

[@wolfblade5949]

Not really

[@northdakotasirens1520]

@@wolfblade5949 yes rlly

[@JJP_SirenProductions06]

@@wolfblade5949 I think it does, you can hear the unpleasant scratch from it.

[@TriStateRailfan]

Man she sounds and shows her age! Beautiful siren!

[@ethanplayzminecraft6050]

Why is every object people talk about always have to be a girl

[@TriStateRailfan]

EthanPlayz Minecraft i mean, when it comes to stuff like that. We really don’t know. But object have boy names too. The steam locomotive “The Big Boy” goes by he for an example.

[@callmezerou4531]

EthanPlayz Minecraft because the object is a beauty

[@justinkeomanee8537]

13:20 Submarine diving alarm.

[@rainbowrailroadcrossing7798]

Facts

[@nvery5497]

2:00 when vtec kicks in

[@KnittingPasta]

Sosig KZbin And it sounds glorious

[@Dmonez]

...

[@obsirensandalarms]

On these secomak GP12’s the first speed is “star” and then when it kicks up to the max speed it’s called “delta”.

[@ajs2120]

Wow, is all I can say to that! Judging by the clunks from the control box as it starts, I would say it must be on a star/delta starter, which is taking too long to switch over from star to delta, hence the sudden increase to the full speed at 50Hz. The noise is of that siren is simply unmatched from any others I've heard.

[@mrclucker1969]

Alex Smith not only that, but I think the paint is flaking on the rotor and rubbing on the housing, just to upset any current monitoring circuit in the star/delta change over circuit!

[@RaisedLetter]

About 25 seconds on Star and 5 on Delta. The timing is pretty bad.

[@hmsirensandfirealarms]

Still working great! When i filmed this its only slightly lower pitch but only a really little bit but it is still working great. It actually does shake the ground I went and it was shaking under me. Thank you for this video and the siren map in desc and if it were not for this video I would not know where all of these UK sirens are and would not have seen Ravenstruther keep the good work up! 😁👍

[@shaunedwards4328]

nice suspense of a siren sounding.nice touch to a video we have all been waiting for

[@dangruner5926]

Dear god, that thing doesn't sound healthy lol. Also, just look at the state of the heater connection box never mind the rest of it..!

[@jonuthinslawncareandconstr7772]

It's a 2-speed dualtone siren dual tone sirens never sound healthy

[@soulsweeper1630]

JONUTHIN'S LAWNCARE AND CONSTRUCTION INC what are you talking about? Unless the siren is broken or sick no matter if it is dual tone or single tone it should sound healthy. This siren is definitely sick and it needs servicing.

[@LiftInspector]

That is such an EPIC sound!!! I love it!

[@rainbowrailroadcrossing7798]

This dude litterally speedran sirens just for us!!! Thank you!!!

[@HardDriveGuruOfficial]

This siren is beautiful!

[@igor00712]

If you wanna hear a loud siren, try to look for a Chrysler air raid siren in America, it can generate 138 decibels... across a 100 ft! It's literally the loudest siren in the world.

[@emrilbennett8704]

That is truly beautiful and spectacular!

[@santiemma2009]

Yeah

[@al3xa_draw408]

You deserve more subs.

[@tooelesirens796]

Non-siren enthusiasts: best siren ever super healthy. Siren enthusiasts: she needs some oil and a restoration, but she be lookin pretty good.

[@ChrisRichmond]

Regarding the comments about bad bearings, on dismantling my GP12, there was major aluminium corrosion between the back of the rotor housing and the motor, resulting in serious friction on the rotors themselves as the housings had bulged inwards at the centres. This could be the actual problem.

[@Richardincancale]

That’s an awesomely weird sound! Sorry to miss the premiere - opera booked before this was scheduled - same sort of thing though ;-)

[@DigitalSirens]

loved it!

[@sebastianosettonni8573]

I flinched when I saw your profile picture

[@Vigilance108]

And It Actually Goes Off

[@shaunreid7929]

What's even more haunting the the fact that there's a system of emergency sirens for escaped mental patients lol

[@thunderchild2756]

Think this must be the one you hear in GothicGman's Carstairs siren video 😁 for those who haven't seen it, go check it out! Always loved how it hauntingly stays low then suddenly perks up 😍 great to hear it close up! 🔊

[@randomores]

I reckon it is. I reckon you hear this and a couple of distant CS8s!

[@thunderchild2756]

@@randomores Cool 👍I'll go back and listen out for them too 😁🔊

[@liamwaldrup8822]

2:58 when I get hyper on sugar

[@immortalgamingyt6182]

And then you crash

[@DonaldDuck-hl2zs]

@Liam Waldrup loooooooooooooooooooooooooooooooooooooooooooooooooooooool

[@kasenschwab6296]

When It Runs At Two Speeds It's Very Amazing

[@Andi090386]

Glad we finally got to hear the siren Matt. Btw I found out where the one at The State Hospital is. Not visible from the road, as it's well within the grounds

[@alarmmuseum]

I’ve always wanted to know where it was! I spent ages looking it up and using google earth

[@Andi090386]

Go onto OS Maps & type this Grid Ref in: NS 96081 45830. That should come up with the most likely location for the siren.

[@alarmmuseum]

Thanks

[@JasontheFolf]

When you combine miles and meters. Mesure.

[@hvadd]

Uploaded on my b-day aswell:)

[@PanferriDPMO]

You should definitely record some sirens from the Rampton Hospital system!

[@NorthlandAreaMedia]

i love the go pro 7 black audio u should do a siren test of one of these sirens with only this view ad timer

[@stormshadow_6477]

I don't know if somebody already said that, bit imho the "Two Speeds" of the siren are caused by a faulty star-delta timer (normally used to limit inrush current on start-up)

[@CoolH99]

Nice video

[@Lilja2022]

Wow I didnt know this siren Sounds good. Its a beast and that it has two Different Sounds from a Siren wow. The lower tone of the siren reminds me of the broadmoor siren Plus another siren and then the higher tone I dont know. But it sounds cool

[@foundouthowtochangeytnameb1997]

Now that's E P I C

[@Nthuziast]

the way a siren works is by forcing air out of a specifically sized hole at a fast speed. the closer the rotor is to the stator, the more air is forces through the ports, and the louder the siren is. seeing how the rotors are literally clipping the stator, it makes sense the ground is shaking. also, how ironic, the newer siren is in worse condition than an older siren! like, a lot of them.

[@vantaaax]

according to another comment this thing is run on a star/delta starter which is taking way too long to switch from star to delta during operation. this is why it runs up to full speed for only around 5 seconds. its around 25 seconds on star and 5 seconds on delta.

[@kasenschwab6296]

This Siren Melted My Tablet

[@JetDom767]

Wow what a sound although definitely needs some oil on the bearings, sounds like the star delta circuit might need some attention as well

[@Roostertailin]

It's taking a good 20 seconds for it to kick into delta

[@rjgscotland]

Heh, "Ravenstruther" pronunciation trips many people up. It's actually pronounced as "Renstree" or "Reinstree", which is totally counterintuitive I know.

[@mrmattandmrchay]

Oh my goodness... NEVER would have realised that! Its really annoying as I always like my videos to be as accurate as I can be, and getting pronunciation right is very important in my eyes. Unfortunately it's a little late for this video :/ Thanks for the info though... might put this in the video description later.

[@al66class59]

Looked it up- Reinstree is the Scots spelling, hence the odd pronunciation.

[@supra1981]

I’ve lived there all my life (39 years) and people’s ideas of how to pronounce it is hilarious ravenstrooother 😂. Kimberly is right.

[@Neddyfram]

it sounds like a german tank 'hans, get the ravenstruther'

[@WhiteUnicorn82]

Mmm, na

[@ArlenMoulton2]

In my opinion, the reason why it changes speed *could* be due to star-delta starting of the motor. Being a much bigger and more powerful siren than the CS8, it could need to start itself in star mode to have enough torque, then switch to delta to get higher speed. Either this or rather than having shutters like the CS8, this model switches speed to change tone, either way it's definitely some kind of electrical change rather than mechanical.

[@davispham3878]

Yes

[@2002_bugeyewrx]

Whaaa...? There is no way that siren is 140 db...

[@Egress.]

quite possible that close at 100ft, no.

[@neonafterglow4451]

Considering the loudest siren ever produced ( the Chrysler Air Raid Siren)cranked out 138 db

[@zackdow95]

Possibly 120 dB

[@supertyfon1736]

If its a GP12 then it's 115 @ 100.

[@ChrisRichmond]

That's a GP12. I have one just like it. They are much larger and louder than a Castle Castings siren.

[@matthewwalker8197]

some new bearings and whatever is wrong with it not starting up right needs sorting but its also intersting to hear and as always with your videos.. a great video to watch :)

[@ajs2120]

It has a starter problem. Easy to fix, but I guess no one has ever bothered to do it.

[@matthewwalker8197]

@@ajs2120 i guess not.. they should be maintaining them

[@oheck]

I think the reason why the siren sounds two speed is because those rotor heater boxes look shorted, and if the heaters run it might effect the motor speed because they are shorting

[@FM60260]

Do either of the other GP12's have the two speed start? (my guess is a star/delta starter is being used)

[@thunderchild2756]

Just started the video but I'm already gonna say it's awesome cos I know it will be lol 😁😍🔊

[@hmsirensandfirealarms]

🔊😁

[@RediffusionMusic]

Definitely a star-delta switcher there, a very very late changeover though! Usually these contactors are pretty quick, possibly the capacitors are needing a little check up :)

[@BOBKB3NZX]

Agreed. Cant really say too much though given its age! I'm wondering if it has a sense bulb for the switchover command...

[@contactacb]

Do you wear hearing protection? It's loud enough to be a problem even for short durations if you are close enough!

[@shaunedwards4328]

what song is at the intro.i want it so badly in a link on youtube please

[@theboywhodroveaway7954]

Someone is playing with that old thing! :P

[@scopex2749]

I was in the RAF and every base still has these. They are used to call us in at ANY TIME for war excercises and i do mean ANY TIME usually about 3 am as the neighbours are ALL military so no one can complain 😂😂

[@mrmattandmrchay]

Chay did his work experience at RAF naphill. I noticed a very old looking siren at the end of the security office before you enter. Dark green motorised siren in a cage. Really wanted to get a photo of it but probably wasn't wise to do so!

[@pomonabill220]

Sounds like bad bearings! But is EPIC!

[@ajs2120]

Yes it slows down so quickly as well, definitely worn bearings!

[@brintheboxer4020]

0:20 how did you get that map?

[@novawarningsirens]

How do they activate these sirens? Via telephone line or radio activation?

[@olliemccoy3342]

Does the siren do a different tone for escapes Or the same tone as now

[@Lilja2022]

The Sony HX80 did a much better Job then the Go Pro. Wow. With the Sony HX80 you can hear it all clear and the pitch changes. Everything Sounds better with the Sony HX80. Good Job in recording this. 👍🏻

[@aedanjharvey1868]

Any chance you could make a video on the Crowthorne broadmoore siren? It’s the last one standing, would be nice to hear it one last time before it’s axed soon. Shame I don’t live near it anymore lol

[@mrmattandmrchay]

Hi. If this is the Crowthorne Statio siren you are referring to then unfortunately I don't think it works anymore. Someone went to film it about 1 to 2 months ago and it didn't sound. The only one that I know still works is the main hospital one. All the rest that remain are unknown, but I think gone are the times where you can go and film these and expect them to work. In fact its the opposite... probably expect them NOT to work. Same with other locations... Wokingham London Road, Skate Park and Crowthorne Stn - people have already been to film them recently and they didnt work.

[@aedanjharvey1868]

mrmattandmrchay According to broadmoors website crowthorne is the only one that’s ‘Ment’ to work. Apparently it went of in April due to a lighting storm aswell lol

[@aedanjharvey1868]

mrmattandmrchay thanks for the reply :)

[@MichalM]

@@aedanjharvey1868 Correct! Siren G does still work, albeit a bit badly. Got to go on Monday and see if it's the end!

[@donaldduck2855]

This Is The Most Epic Siren I've Ever Heard In My Life

[@tooelesirens796]

Search up a video of a Thunderbolt 1003 and report back lol.

[@donaldduck2855]

Them Thunderbolts Can't Top 140 Decibels While THIS Does LOL

[@tooelesirens796]

@@donaldduck2855 gotta hand it to you. I thought that the loudest siren was still the Chrysler-Bell Victory Siren at 138 decibels. After doing my research, this has a top at 145 decibels. I still think other sirens are cooler though, no matter how loud they are.

[@yaman1776]

Chrysler Sirens Might Be Jealous That They Don't Have A 2 Speed Motor LOL

[@tooelesirens796]

@@yaman1776 definitely

[@perhaps3990]

mrmatt you know what im gonna do now, im gonna make a siren video on yt lol

[@christopher-2000]

awesome it sounds like siren in my home town and i film it going off and i got a ww2 air raid siren and i going to setting off on new year"s day

[@dawson9507]

If I remember correctly, I think this siren is louder than the hour bell Big Ben in London. I think I heard that when it’s first struck, it gets as loud as a plane taking off (136db)

[@HSETM]

That's as loud as an ACA P-50.

[@passacaglia28]

I wish I could have been there! So epic indeed!! I love annoying my neighbors with this video!

[@Tigers9596]

Man that thing is loooowww

[@RedPlate261]

It sounds as if the 2 speed issue might be a problem with a soft start system. Perhaps a sticking contactor.

[@ZLDSmogless]

That thing must bother the cows like mad!

[@jimdieseldawg3435]

Wow! I don't think the locals shooting at it has helped it... the missing junction box cover bodes ill for adequate contact too. A new set of bearings wouldn't go amiss either judging by how quickly the rotor stopped and how my mechanical sympathy itched in time with that hissing. However, all that would spoil this EPIC siren! Excellent capture, old chap.

[@Uajd-hb1qs]

There must be a few decibels added to it with the sound of the metal scraping.

[@ZLDSmogless]

I don't think it's 140db, that's 9db lower than the Chrysler siren at full speed. Were you wearing hearing protection?

[@kierantaboryt7827]

What make is this siren? It looks and sounds different to the Other sirens or even Air raid sirens in general.

[@randomores]

Secomak GP12 I believe!

[@rustysimms7580]

Ooof! Creepy!!!😳

[@samschannel531]

That is one slow star-delta starter.

[@press8704]

i love that pitch up before the wind down!

[@Dogappel]

that is technically a small malfunction

[@3t22sirensystem]

its Star/delta

[@jdmcmillian277]

Need to listen to the Chrysler powered siren used during the Cold War in the United States. You know it’s loud when you use a 331 cubic inch HEMI engine to run the siren lol

[@bsodgamer1234_unverified]

That siren is a fast stopper.

[@obsirensandalarms]

0:35 wow what is that camera, it zooms super far! 🤩

[@mrmattandmrchay]

Hiya! Sony Cybershot HX80 - 30x zoom! Quite an old camera now (does 1080p though). Was perfect for siren filming, definitely need a tripod though, can't really walk around with it.

[@mikejohnson6737]

So has your hearing returned to normal yet?

[@MichalM]

LOL

[@dank980]

Wow

[@VOLTRONDEFENDER4440]

Siren H has no dampers but ones with dampers that do hi lo signal is like thunderbolt 1003

[@CWM030]

What's with the changing of speed when the siren shuts down?

[@Anzac1]

What siren is it?

[@dashcamdude6690]

So how does it work they just press a button and all the sirens automatically come on ?

[@yaman1776]

I'll Try To Buy One Of These And Turn It Into A CS8

[@mattmakesmachines]

The delta starter seems to be acting up Other than that this sounds great

[@sheppardpat47]

She got also defrost heater plate!

[@dykodesigns]

140-150 dB that is insanely loud. It could damage your hearing if stand too close to it. I don’t know how long a safe exposure time would be. I’ve heard that such sound levels could pierce your ear drums.

[@friedmanirit]

140 at 1 meter.

[@grandinosour]

I am having a hard time swallowing 140db... The chrysler bell victory siren is 138 and it is the loudest siren ever made... Search it out on youtube...powered by a v8 gasoline engine and can be heard for 30 miles.

[@friedmanirit]

@@grandinosour It's 138 db at 100 ft. At one meter it's 173 db. Have a look at my video of me setting one off: kzbin.info/www/bejne/aX-scqOPn6hkj7c

[@friedmanirit]

@@grandinosour Also, the Chrysler Bell Victory Siren is an earlier variant which was 137 db at 100 ft. It had a 2 stage compressor and slotted disc made by Bell Telephone Laboratories (hence the name Chrysler BELL Victory Siren). It was powered by a 160 hp Chrysler Industrial 30 Flat 6 engine. This model was produced from 1942 to 1952. The model you are thinking of is the later variant, simply called "Chrysler Air Raid Siren". That's the one in my video. It has a 3 stage compressor and a slotted disc made by American Blower Corp. It was powered by a 180 hp Chrysler Firepower Model 20A V8 hemi engine. This model is the one that produces 138 db @ 100 ft and can be heard about 15-20 miles on average, but has been heard over 40 miles! This model was made from 1952 to 1957. We got word that the one I helped set off was heard over 25 miles away in Catalina Island.

[@santiemma2009]

¿Which siren is More Louder than the Chrysler siren?

[@rogerscottcathey]

Use this for nearing time limit in billiard matches.

[@DMONCHNCHMN]

This Thing Is L O U D As Heck

[@WatchKek]

Damn that's a beaut

[@RODALCO2007]

The star delta timing is out a bit. Should be about 5 seconds on star. Still an awesome sound. The siren can do with a new paint job. Also, a bit of rubbing of the rotor, most likely corrosion. Great you are documenting these beauties.

[@rainbowrailroadcrossing7798]

The VTEC siren..... lol

[@sirensofpa544]

how is that 140db?

[@sirenealerte85]

this evening lost power the sound is not the same as the other siren it rings the ring ATTACK

[@michellehubbard4347]

im guessing this siren was also used during WW2?

[@pnrtrains902]

Sound like 3t22 2t22 in the end after wind down

[@Kriftbeasttt]

Why do we have airade sirens for storms?

[@henry8909]

That’s smaller looking than what we have in the U.S.