fv1609

There were a number of modifications that Richard refers to with various engine issues. Most of these were under a programme Op Terry. Typical of that is this AESP 2320-D-122-821 Gen Instr No 68. Other issues mentioned by Richard are in Gen Instr No. 6, 10, 17, 21, 70 & 71.

34 Central Workshops Donnington

Bovington came across this problem a few years ago, I don't know how they got round it. I remember there was a phase when any Larkspur equipment with meters had to be decommissioned by removing the meters. I've put a Geiger counter over some meters I had, but the count rose but not dramatically. As you might imagine doing the same test on any wartime meters, then the counter went into overdrive.

If its early 1940s something like Mowe or if late 1940 -1950s perhaps Fairey Stooge. My avatar is Orange William developed by Fairey. This of course was a ATGM not a SAM, but the twin operator guidance system was similar, which makes me think it was perhaps a Fairey development.

A SAM with a form of SACLOS in that one operator tracks the target & the other, you say is essential, tracks the launched missile, so that it is commanded onto target.

A portable self-steering range finder for aircraft tracking? Soviet?

Or a crop 'circle' even!

Well you beat all the others to it. (I suppose they are all watching Come Dancing or football!)

Yes I'll be there in TUL(HS) with some stuff to sell. I think it's meant to be a better day than today. Some bits that have been seen before (!) & some that's not. Although each time there is always someone who buys something I have been lugging around for years who seems delighted to find it for the first time!

Yes well done STD Given the numbers it caters for I would have thought it would have been quite crowded at times, not to mention damp.

As its Saturday night a very easy one.

Yes spot on! Yes seems a bit daft!

Yes. Any ideas where & what is this man doing?

Yes well done Richard But not for shipping necessarily. For bonus points. Where & when?

Too right!

Right an easy one now. What's going on here?

Gary yes, but lets hope the TUAAMs don't get hot like the Yarmouth's loading coil! With that red hot steel box, it just shows what heat can be generated by RF energy at any frequency. Some people seem to think that its just microwaves that can cook. Its just that with a short wavelength it is more convenient to dissipate the energy. That transmitter was far removed from microwaves operating at 4,000 metres (75 KHz). Lets hope nobody was around if they operated it with the door open.

In case anyone thinks it shouldn't be on this thread it was ex-NFS. It was modified to water cannon mode 1954-6. It did double up as a water carrier during supply problems in July 1960. You can just make out the black WW2 steel helmets which continued as riot protection until mid-1969.

Yes, I think you will find that this is an Austin K2 in RUC service dealing with election time riots in early October 1964. As for blazing liquids, these were expended on a trolleybus, which carried a large advert "Reward! You've earned that Guinness"

Ah but they did make some improvements, like making it fly!

Given that transmitters at the time were dependant on the aerial length to determine the wavelength, swaying of the aerial had the effect of varying the height of it & hence its capacity to "ground". This was problem enough on the shore, but on a ship it was difficult. This experimental cruise was to evaluate three experimental concepts under sea-going conditions. One of these was to control the transmitter frequency by a "separately excited grid circuit". The second was to load a long aerial with inductance to allow operation on 4,000 metres. The third was to use a spark gap attachment. Judging by the picture this cumbersome apparatus was taken from a Condenser Transmitter Large Power Shore Station No.14. Although this might seem to be a retrograde step it was to provide a note or at least a noise for operators at receiving stations. The normal transmitter was a continuous wave (CW) that was keyed. In those days there were no BFOs to provide a tone in the receiver nor MCW (Modulated CW) to send a tone out on the transmission. The cruise of HMS Yarmouth from 4th Sept to 26th Sept 1924 was from Portsmouth to Madeira, Las Palmas, Gibraltar & return. The schedule of transmissions on the various wavelengths with the different accessories was monitored & recorded by a number of listening stations.

Near enough 1924

Nope, a fair way off.

Nope, Graham