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Flixborough Works was always a bit heavy duty. There was a nice little pylon just to the wsw of Moores Farm.
We should stop this now. |
Used to hear USAFE F-111s from Heyford telling their ops they were heading for Tumby or Lindholme bomb plot. Early 1970s. How did these (bomb plots) work?
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The bomber would overfly an Initial Point where it would be picked up and locked onto by a tracking radar (I can't remember the radar type, but it was mounted on a mobile unit). The radar track was fed to a plotting table on another mobile unit. Prior to weapon release, the aircraft would transmit a tone which stopped at weapon release. This produced a spike on the plotting trace from which, using weapon forward throw and aircraft groundspeed an impact point could be plotted relative to the target position.
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Many thanks for that. I have often wondered - so was it limited to level bomb runs?
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How did it work?
You use this stuff. Simple!: Tatjana van Vark ~ Navigation and Bombing System NBS (I make no apologies for posting this again!) |
Simply complicated!
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Bearing in mind that the RBSUs existed to score simulated nuclear strikes by the V force, only level attacks were scored to my knowledge. I suppose that a toss attack could be scored in theory but I suspect that the score accuracy might not be very good.
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F -111 plots at Lindholme
In 1973 I visited the Lindholme unit and watched a Vulcan plot using, I think a Gainsburgh target. The team there praised the F-111 guys out of Upper Heyford on their ability and accuracy gained from service in Vietnam.
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Well I'm told most that most Nav Rads swore by Flixboro' works but then all of a sudden had to find a new one |
Possibly for a previous and almost extinct generation but does anybody have anything on the 'London Bomb Range?' which was operated on Heston Airfield in the early 50s by the 3903 RBS unit, USAF....I grew up on the edge of the field in that period.....used by USAF, USN and RAF, I believe
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My father was in the RAF from 1960 to '63. He was stationed at Bishopbriggs, working on the BSU during some of that period. I'll ask him exactly when he was there when I talk to him next.
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The RBSU at Bishopbriggs was still operational in July 1963 when my father was discharged from the RAF. Beyond that date he has no idea how long it was there for.
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Originally Posted by Barksdale Boy
(Post 7073610)
Did not Devon and Tumby operate simultaneously and independently of each other, certainly from 67 until at least 73?
Latterly Dunkeswell and Tumby were operational at the same time. However Dunkeswell was first used as a one-off competition site. Boxes of vert photos and stereo viewers were delivered to each wing. Bill Cooper at Waddo took charge and declared it would be a Wing effort. He found a large and well defined hill, ideally sited in the approach about 5 miles before the target (IIRC) and an excellent lead in offset. Of course pre-comp devices were forbidden but I suspect there were a few PDs to St Mawgan. By 1970 Dunkeswell was a fully fledged, if unpopular, bomb plot. It was off the beaten track for both high level and low level attacks. The low level in the south coast was particularly boring for navigation. However it was so under used that they always gave good scores to encourage more trade. |
Originally Posted by A30yoyo
(Post 8011315)
Possibly for a previous and almost extinct generation but does anybody have anything on the 'London Bomb Range?' which was operated on Heston Airfield in the early 50s by the 3903 RBS unit, USAF....I grew up on the edge of the field in that period.....used by USAF, USN and RAF, I believe
By 1964 that unit had probably gone and an RAF RBSU had been established at RAF Kenley. |
When on Hastings doing the NBS course I was supposed to attack a reservoir dam up in North Yorkshire. I misidentified it and "bombed" one in the next valley, which had a very similar response on the H2S (well anyone can make a mistake).
The RBSU duly scored my bomb and sent an error of nine miles (we were hoping for about 400 yards). Messed up my bombing figures bigtime and probably clinched my posting to Victor tankers instead of Vulcans, so it wasn't all bad! |
The Americans, specifically 1CEG, used to change target letters. On my first attack at Watertown I got a score of about 30,000 feet :(
I didn't find out why before I loaned my offset details to Terry Lynn on 35. He got a very similar score to mine; showed the offset was good :) He also had a No hats interview at Bawtry Hall with the AOC, an unheard of honour for a mere nav rad. When I met him 30 years later he still hadn't forgotten. My next attack at Watertown was planned in detail even down to noting the target letter was to change the week we were to go. Made a good attack on the 'new' target. The bomb plot then asked us to confirm the target as we had appeared to attack a different one. Quick as a flash we confirmed we had attacked the target they suggested. We were correct; they hadn't amended their target list. |
One of the best visual IPs near Dunkeswell was the 'Government Radio Station' at Trickey Warren, which was an outstation of the 'Composite Signals Organisation' at the old RAF Culmhead.
A bright white building which could be seen for miles even at low level and it was also radar significant. Plus we knew that the spooks would never complain about the noise of 90 tons of tin triangle flying overhead at 300 ft / 350 KIAS as they wanted to keep their sneaky-beaky activities schtum....:E If you dig out that old movie 'Strategic Air Command' which features James Stewart flying the B-36 and B-47, there's a piece in the film showing an RBSU in operation - of course Jimmy Stewart's crew score a 'shack' (DH)! |
Originally Posted by t7a
(Post 7668803)
The bomber would overfly an Initial Point where it would be picked up and locked onto by a tracking radar (I can't remember the radar type, but it was mounted on a mobile unit). The radar track was fed to a plotting table on another mobile unit. Prior to weapon release, the aircraft would transmit a tone which stopped at weapon release. This produced a spike on the plotting trace from which, using weapon forward throw and aircraft groundspeed an impact point could be plotted relative to the target position.
At high level we tended to fly a timing trombone flying away from the target and turning back to make the time on target. We would fly through an initial point 45 miles from the target on our declared track. The operators often picked us up flying away and held lock through the IP. Against Haydock we used to do an equipment 28 run. This was usually on a south west track. At 45 miles they would lock up and we would break lock, strangle the jammer and wait for relock. The AEO was scored on his break lock time. Against Ouston, and often on a north east track we would fly against their jammer. This was an untuned X-band jammer off the B50. Eventually there were no spares so ECCM ceased. Much earlier a 3-jammer complex on Brantub was very impressive. |
Rbsu
I was on operations at Tumby in early 70's. Interesting reading your comments.
Yes, we changed our call sign when we lumbered along the roads to various parts of the UK. (We were nicknamed The Flintstones). I think we were the only one of its kind left in UK at the time. From Vulcans to B52's ... And some speedy fighters ....And some propeller types carrying out training flights at horrible slow speeds ... You were all sometimes hard to pinpoint in the skies around. No help from radar stations, just a beam in the sky. Fun times were when the evening silence was broken by the radio, patched through to the ping pong table, crackling into life with some high flying, globe trotting B52 checking in to see if they could do a run. Always the calm, relaxed and polite drawl. Unlike the curt, short, no jokes raf pilots (well ... Not all :-) ) Lighter times with USAF UK based fighters were the crates of Budweiser they would send up "maybe in hope of some better scores". Lots of stories ... But I guess they have to stay in my head .... |
RBSU
I was on operations at Tumby in early 70's. Interesting reading your comments. Yes, we changed our call sign when we lumbered along the roads to various parts of the UK. (We were nicknamed The Flintstones). I think we were the only one of its kind left in UK at the time. From Vulcans to B52's ... And some speedy fighters ....And some propeller types carrying out training flights at horrible slow speeds ... You were all sometimes hard to pinpoint in the skies around. No help from radar stations, just a beam in the sky. Fun times were when the evening silence was broken by the radio, patched through to the ping pong table, crackling into life with some high flying, globe trotting B52 checking in to see if they could do a run. Always the calm, relaxed and polite drawl. Unlike the curt, short, no jokes raf pilots (well ... Not all :-) ) Lighter times with USAF UK based fighters were the crates of Budweiser they would send up "maybe in hope of some better scores". Lots of stories ... But I guess they have to stay in my head .... |
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