fv1609

Phil that sounds a good idea but with my IR gun I was unable to get any sensible readings on the shiny aluminium of the coil. Getting a spark that you can see on a plug can be misleading. The spark gap is of course very small & you may not be getting a spark in the engine due to compression & the gas density. So a spark in air for a healthy coil should be at least 1cm.

It is very likely that either of these could be effected by heat. Check that the ventilation pipes to the distributor are not blocked. If you bring the capacitor & coil to WPR I can test them for you. These need to be tested at the sort of voltages they work at, so 300v on the capacitor & I can test the coil for leakage at 5,000v. When the coil is cold this must be quite high because as the coil warms up its insulation can deteriorate significantly. I had a coil with a leakage of 25 megohms that just about functioned but when hot reduced to 2 megohms & became non-functional. It took nearly an hour for it to cool sufficiently to be able to produce a spark again. I have just purchased a new coil & that has a cold leakage of 40 gigohms, so that gives some latitude for when it becomes hot.

F7706a 431 mu raf bruggen f8098a raf gutersloh supply sqn I keep typing upper case but when I preview it changes it to lower case :undecided:

Thanks for the pics & I liked the aerial clips, nice toy. Maybe I will get there next year again.

Era was important for the basic colour but subsequent painting depended on theatre and discretion of unit commanders influenced by whether these were "teeth" units.

STANAGs are NATO Standards that may or may not get translated into a UK DEFSTAN.

There is some coverage on the Jolley module on B Series towards the end of this: http://www.hmvf.co.uk/pdf/IGNITIONMATTERS.pdf

Just to add to the debate high gloss DBG continued to be listed in COSA H1(a) as did high gloss NATO Green (yes not IRR). So also was high gloss OD, of which I have a can & I also have a can of high gloss Dark Green BSC381C 241

I really don't understand why he makes that claim. As I recall in his bibliography he includes Materiel Regulations for the Army. Volume 2. Vehicles and Technical Equipment. Pamphlet No.3. Marking & Painting of Army Vehicles, Aircraft and Equipment. Annex B. Army Code No.60503 (PAM 3). But anyone who has read this will clearly see that it introduces the concept of using IRR NATO Green for the painting of vehicles & technical equipment & was first published in Dec 1980. Defence Standard 00-23 covering the IRR requirements for painting military equipment was first published in October 1980. This was Issue 1. NATO Green was only added as a British Standard Colour for " identification, coding and special purposes" in 1980 as BSC381C 285

Well maybe or maybe not. I'm not going to give up on going because of uncertainties that others may experience in getting there. I make a point of travelling on non-motorway routes & I'm sure there will be enough attendees to make a go of it despite the challenges that many may face for whom I have great sympathy.

Do you really want to have to post them to Australia :undecided:

I have glanced at that book & couldn't understand his basis for saying that. Especially when inclusions in his bibliography use official documents that I have quoted in earlier articles that do not support all that he says. As I said in an earlier post "Well to start off 1st January 1948 FVDD FV Specification 2012 required Army MT to be painted Deep Bronze Green BSC 24." Note that this is FVDD that predates FVDE then FVRDE. DBG is quoted as BSC 24 because it was not until later in 1948 that BS 381C Colours for ready mixed paints introduced a 3-digit coding displacing the 2-digit code of BS 381 Colours for ready mixed paint 1931. I will reply about the NATO Green later this evening when I have a bit more time.

The definitive layout & installation details for particular combinations of Larkspur equipment in particular vehicles, (Unarmoured, under 1-Ton & motorcycles) is contained in EMER COMMUNICATION INSTALLATIONS M 030-039 to M 470-479. If you tell me the combinations of equipment you want to use I can tell you the exact sections to look for.

I have a device that was more effective than the proper thing, I have found a spare one I've put on your pile.

Wayne the outer one is available as Gayco MI47552525. The inner is no longer available. I bought the entire stock from Budge & have used up most of them with just a few left to see me out as it were.

I had a correct FV box spanner but I sold it recently, all part of the clear out.

Well to start off 1st January 1948 FVDD FV Specification 2012 required Army MT to be painted Deep Bronze Green BSC 24. No simple answer because it will depend whether it was used by a front line unit when Olive Drab was applied & then arguments as to when IRR NATO Green was introduced.

Humber is bigger

I did reset it Nigel just as a matter of routine housekeeping, adjusting it for maximum smoothness rather than revs. Don't know that it was set up correctly before though.

Yes very worthwhile & very easy. I did it for Pig & Hornet. It is not cheap but you do get a machined base plate that would be difficult for most of us to manufacture. They have proved most reliable, there is some coverage here: http://www.hmvf.co.uk/pdf/IGNITIONMATTERS.pdf I did not use the fancy coil that was suggested & I did not increase the plug gaps as suggested. You cannot/shouldn't adjust the gaps of RSN13P plugs. I did try increasing the gaps on RSN12Y but found the system was sometimes unreliable because if you make it more difficult for a spark to jump at the plug it may find somewhere else to jump & highlight vulnerabilities in the screened system.

So how was the show? I was unable to go, any pictures?

Richard that probably is right, because mine was made a bit longer than it need be. Funnily enough I had a long chat with RA last weekend after a space of many years. He does rather miss the green scene.

It was simply what I measured that was needed, hence the measuring to only one decimal point. A bodge one is made up of: ID - 2 5/8 in OD - 3 in Two layers of tape uniformly wound then fitted into ID - 80mm OD - 90mm Then two more layers of tape (that tend to get graunched) Yes very horrible I know but it was an off the shelf tool that served me well until I got three engineered ones made up.

ID - 6.6cm OD -9.1cm

I've never been able to find out what prices were actually paid, would be interested to find out if it was a fixed fee or varied with negotiation. Op Bubble demonstrated that it took twice as long to bring these Pigs into a serviceable condition than originally anticipated. There were 200 repurchased in 1972 to cover those undergoing Op Bracelet after which 80 still remained as Mk 1. I used to have a repurchased Mk 1 that served in NI that was sold off for £40 in 1967 and repurchased for an undisclosed amount in the 1972 repurchase scheme.