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« on: November 30, 2013, 11:53:48 PM »
Well this has triggered my memory banks so hope I can add a little more.
The Terrain Following Radar (TFR) ARI5959 was, i think, an American piece of kit which I assume was deemed necessary when the V force was tasked with the low level role.
There was a one week course at RAF Wittering for engineers which I attended in the early 70's to learn the basics. At that time I was on FLES (Flight Line Engineering Squadron) at RAF Scampton prior to squadron based servicing being introduced
There were problems with water ingress in the early days as the pod was modular and not pressurised. A couple of semicircular plates were then fitted to the rear of the pod with the cables going through a central grommet. Sometimes the hardest part of the removal and refitment was aligning a circular rubber seal (26DC1433778) and its associated wedge that was supposed to prevent water ingress into the radome from around the pod. This was secured with a large jubilee clip.
If the cockpit section you have was never stripped there there may still be the ADD (Airstream Direction Deteactors) Probes (6A1047770) which supplied information to the pod of the angle of attack (nose up/down). They are slotted rotating stubbs about 6 inches long, one on either side of the cabin in the vicinity of the roundel. These were heated and one of the preflight checks was the touch test, as with the pitot head.
More information can be found on page 172, and a comprehensive diagram on page 206, of the Vulcan Story by Tim Laming. These are reproductions from the Aircrew Manual.
With regard to the H2S scanner rotation, if you wish to lock the scanner in the abeam position there is a Azimuth Rotation Locking pin fitted in a stowage position on the Junction Box mounted on the top rear of the scanner frame assembly, it is spring loaded and require a push down and 90 degree turn, sorry can't remember which way, to remove. Then set the scanner amidships and locate a silver cover just above the rotating scanner on the frame, with the cover lifted to one side and the scanner set amidships the pin will slide in and lock the scanner enabling rectification work to be carried out without misaligning the scanner bearing when the AUC(S) was replaced.
Hope this all makes sense and is of some assistance, helps to keep my long term memory in reasonable shape.
As always I am happy to be corrected if my memory is incorrect or incomplete