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RN gun and missile test question

Posted: Sun Mar 15, 2026 6:51 pm
by Bernard Woolley
Folks, since my Google-Fu has failed me, I am hoping that the combined wisdom of the board will be able to help. The RN had a site on the coast where it mounted a number of gun mounts (Mark 6 & 8 4.5inch for example), radars and stuff like Sea Dart launchers (IIRC) for test firings. I am trying to find where that was.

Thanks in advance.

Re: RN gun and missile test question

Posted: Sun Mar 15, 2026 7:14 pm
by GBR001
Aberporth I believe is what your looking for.

Re: RN gun and missile test question

Posted: Sun Mar 15, 2026 7:17 pm
by Bernard Woolley
Thank you. I have seen pics of gun mounts on shore pointing out to sea, but can’t find them now.

Re: RN gun and missile test question

Posted: Sun Mar 15, 2026 7:22 pm
by Craiglxviii
Bernard Woolley wrote: Sun Mar 15, 2026 7:17 pm Thank you. I have seen pics of gun mounts on shore pointing out to sea, but can’t find them now.
A friend’s dad, when a member of the Welsh Rocket Society, managed to blow up a Sea Slug launcher at Aberporth…

Re: RN gun and missile test question

Posted: Sun Mar 15, 2026 7:50 pm
by Davion Highlander
Craiglxviii wrote: Sun Mar 15, 2026 7:22 pm
Bernard Woolley wrote: Sun Mar 15, 2026 7:17 pm Thank you. I have seen pics of gun mounts on shore pointing out to sea, but can’t find them now.
A friend’s dad, when a member of the Welsh Rocket Society, managed to blow up a Sea Slug launcher at Aberporth…

Deliberately or by accident? :D

Re: RN gun and missile test question

Posted: Sun Mar 15, 2026 8:08 pm
by Paul Nuttall
Craiglxviii wrote: Sun Mar 15, 2026 7:22 pm
Bernard Woolley wrote: Sun Mar 15, 2026 7:17 pm Thank you. I have seen pics of gun mounts on shore pointing out to sea, but can’t find them now.
A friend’s dad, when a member of the Welsh Rocket Society, managed to blow up a Sea Slug launcher at Aberporth…
To be fair, a launch from a Sea Slug did look like it was blowing itself up.

Re: RN gun and missile test question

Posted: Sun Mar 15, 2026 8:25 pm
by Bernard Woolley
Thanks for the help!

Also, got to love the Sea Slug. It’s the only RN missile to have brought down a UFO! 😉

Re: RN gun and missile test question

Posted: Mon Mar 16, 2026 6:07 pm
by Bernard Woolley
I think one of the sites I was thinking of is seen in this film from 4:46 and 9:42 minutes. Anyone recognise it?

Re: RN gun and missile test question

Posted: Mon Mar 16, 2026 7:43 pm
by Craiglxviii
Davion Highlander wrote: Sun Mar 15, 2026 7:50 pm
Craiglxviii wrote: Sun Mar 15, 2026 7:22 pm
Bernard Woolley wrote: Sun Mar 15, 2026 7:17 pm Thank you. I have seen pics of gun mounts on shore pointing out to sea, but can’t find them now.
A friend’s dad, when a member of the Welsh Rocket Society, managed to blow up a Sea Slug launcher at Aberporth…

Deliberately or by accident? :D
By accident. It was a Rocket Society job; they’d tried to launch from a golf course, except the Heddlu (police) turned up and after asking, “Ello Ello Ello, what’s occurin’ ‘ere then?”… they were instructed to take the whole kit & caboodle to Aberporth, where the MoD kindly lent them a twin rail launcher for their efforts.

Then it went big badda boom.

His next job was designing Concorde’s bomb bay… apparently the stress structure under the fuselage was designed to permit a potential “rebuild” if necessary.

Re: RN gun and missile test question

Posted: Mon Mar 16, 2026 7:56 pm
by Craiglxviii
Bernard Woolley wrote: Mon Mar 16, 2026 6:07 pm I think one of the sites I was thinking of is seen in this film from 4:46 and 9:42 minutes. Anyone recognise it?
I <think> that’s my brother’s old Commanding Officer!

Re: RN gun and missile test question

Posted: Mon Mar 16, 2026 8:11 pm
by Paul Nuttall
Craiglxviii wrote: Mon Mar 16, 2026 7:43 pm
Davion Highlander wrote: Sun Mar 15, 2026 7:50 pm
Craiglxviii wrote: Sun Mar 15, 2026 7:22 pm

A friend’s dad, when a member of the Welsh Rocket Society, managed to blow up a Sea Slug launcher at Aberporth…

Deliberately or by accident? :D
By accident. It was a Rocket Society job; they’d tried to launch from a golf course, except the Heddlu (police) turned up and after asking, “Ello Ello Ello, what’s occurin’ ‘ere then?”… they were instructed to take the whole kit & caboodle to Aberporth, where the MoD kindly lent them a twin rail launcher for their efforts.

Then it went big badda boom.
Sounds like it could have been the inspiration for the Yes Minister episode where Bernard Woolley discusses a cover-up, he mentions a torpedo landing on "Sandwich Golf Course," to which Hacker replies he didn't read about it in the paper, prompting a joke about the members finding a new bunker on the 7th fairway the next day. :D :D

Re: RN gun and missile test question

Posted: Mon Mar 16, 2026 8:34 pm
by Davion Highlander
Paul Nuttall wrote: Mon Mar 16, 2026 8:11 pm
Craiglxviii wrote: Mon Mar 16, 2026 7:43 pm
Davion Highlander wrote: Sun Mar 15, 2026 7:50 pm


Deliberately or by accident? :D
By accident. It was a Rocket Society job; they’d tried to launch from a golf course, except the Heddlu (police) turned up and after asking, “Ello Ello Ello, what’s occurin’ ‘ere then?”… they were instructed to take the whole kit & caboodle to Aberporth, where the MoD kindly lent them a twin rail launcher for their efforts.

Then it went big badda boom.
Sounds like it could have been the inspiration for the Yes Minister episode where Bernard Woolley discusses a cover-up, he mentions a torpedo landing on "Sandwich Golf Course," to which Hacker replies he didn't read about it in the paper, prompting a joke about the members finding a new bunker on the 7th fairway the next day. :D :D
The older I get the more I fear that Yes Minister wasn't satirical! :D

Re: RN gun and missile test question

Posted: Mon Mar 16, 2026 8:47 pm
by Pdf27
Bernard Woolley wrote: Mon Mar 16, 2026 6:07 pmI think one of the sites I was thinking of is seen in this film from 4:46 and 9:42 minutes. Anyone recognise it?
image_2026-03-16_203616659.png
Appears to be the Admiralty Surface Weapons Establishment on a hill above Portsmouth - there is now a Type 45 radar set there instead.
image_2026-03-16_204427533.png
image_2026-03-16_204648399.png
I think these are more or less the same view, but the misty day makes it hard to be sure.

Re: RN gun and missile test question

Posted: Mon Mar 16, 2026 8:56 pm
by pengolod_sc
Paul Nuttall wrote: Mon Mar 16, 2026 8:11 pmSounds like it could have been the inspiration for the Yes Minister episode where Bernard Woolley discusses a cover-up, he mentions a torpedo landing on "Sandwich Golf Course," to which Hacker replies he didn't read about it in the paper, prompting a joke about the members finding a new bunker on the 7th fairway the next day. :D :D
Here's the clip

Re: RN gun and missile test question

Posted: Mon Mar 16, 2026 11:50 pm
by Straker
Agree with everyone here.

Looks like what is now the Maritime Integration & Support Centre (MISC) at Portsdown Hill. Along the ridge line from Royal Armouries Fort Nelson museum, you can see it when you walk up from Portchester if you go on the train. It has an Artisan radar set now as well.

The dome for the radar shown in your first picture still exists and looking at the imagery I'd say it was taken somewhere close to here on the car park at the corner of aerial road. https://maps.app.goo.gl/x149C118fbGQR3KV6

Re: RN gun and missile test question

Posted: Tue Mar 17, 2026 4:06 pm
by Bernard Woolley
Thanks again, folks.

EDIT: Been doing a bit of playing with range rings on Google Earth, and theoretically, a T42, or T45 in the Firth of Clyde could shoot down targets over the Forth and Carlisle! Not to mention a good bit of Northern Ireland and the Isle of Man!

Re: RN gun and missile test question

Posted: Tue Mar 17, 2026 7:38 pm
by Craiglxviii
Paul Nuttall wrote: Mon Mar 16, 2026 8:11 pm
Craiglxviii wrote: Mon Mar 16, 2026 7:43 pm
Davion Highlander wrote: Sun Mar 15, 2026 7:50 pm


Deliberately or by accident? :D
By accident. It was a Rocket Society job; they’d tried to launch from a golf course, except the Heddlu (police) turned up and after asking, “Ello Ello Ello, what’s occurin’ ‘ere then?”… they were instructed to take the whole kit & caboodle to Aberporth, where the MoD kindly lent them a twin rail launcher for their efforts.

Then it went big badda boom.
Sounds like it could have been the inspiration for the Yes Minister episode where Bernard Woolley discusses a cover-up, he mentions a torpedo landing on "Sandwich Golf Course," to which Hacker replies he didn't read about it in the paper, prompting a joke about the members finding a new bunker on the 7th fairway the next day. :D :D
That was actually a real incident; a Sting Ray prototype fell off the testing heli and excavated a few square yards of fairway!