Quote of the entire post immediately above removed as unnecessary – Moggy

Hi AP,
Whilst you are totally correct with point 1,..cannot comment on your point 3.

I will have to correct you on Point 2, YES Supermarine did infact produce full production drawings for the T8 and T9. I cannot say if ‘all’ still exist but many hundreds of both 502 and 509 series drawings are held in the archive at RAF Hendon. The drawings covering all aspects, sheet metal detail parts, mods to existing structure, controls, systems, electrics etc. Mainly all fuselage related but also the wing fuel tank mods etc.

I do so like the ‘Make it fit and tell us later’ bit, sums up Spit construction totally!

Cheers, Chumpy.

I get the feeling that certain members are not taking this thread seriously!!…..It is in fact for real, the attached shot shows a genuine bit of the Castle Brom works.

The shy owner, plans to restore it and would like to get the colours correct. As you can see deep blue, once the faded surface is cut back. So does anyone know if there was a specific Vickers /Supermarine ‘house colour’?

I did check out the very excellent Putnam Guttering volume but alas no luck. For those interested in the subject I can recommend the recently published ‘Rogue Traders at War’ by Wayne Brickie.
This the little known story of the squads of highly untrained roofers that operated in occupied Europe during WW2, openly dislodging guttering and roof tiles then charging vast amounts to repair the damage.
Also mentioned is the Long Range Plumbing Group, driving far behind enemy lines often turning up some six hours late. One unfortunate Wehrmacht unit being charged some 5,000 Reichsmark just to change a tap washer!!

..Ill get my coat, Chumpy.

[QUOTE=old shape;1312073][QUOTE=chumpy;1312033]

I’d be interested to know a present design with a dimpled fastener, and I would also like to see the spec. docs for reference. I’m not doubting you, I have never worked on or seen such.

Hi there,
Hmm dimples and current designs, I can but quote the DHC Dash-8. I spent many ‘happy’ years at GKN Westland working on the D-8 engine nacelle programme, horrified to look back and realise it was 1990!! Also at the time similar dimpling of Shorts 360 wing sections. Today I work elsewhere however the Dash-8 contract continues at GKN, as far as I know still done pretty much the same.

As previously stated still much dimpling to be found in the vintage / light aircraft sector, the only way to acheive flush rivets on skins that are too thin for a ‘cut’ countersink.

As for specs etc the various companys had they own techniques / processes. In the case of GKN a large floor standing, pneumatic machine was used. This fitted with electrically heated male / female dies, of various sizes. Pressure, temp, dwell-time varied according to the material being dimpled. ( The D-8 being a combination of light-alloy and Titanium parts).

The skins came with the holes drilled and carefully deburred, usally no probs with cracks. Seem to recall a test piece had to be done for each batch, these closely looked at by the inspection dept.

The machine was operated by foot switch, the part to be dimpled located on the spigot of the male-die. Every now and again I missed the hole, hit the switch..this resulted in the machine punching a hole through the part in question…my foreman was NOT ammused!!

Dimpling can also be acheived by the method mentioned by Pongo..slower but safer!!

Chumpy.

[QUOTE=old shape;1311992][QUOTE=pogno;1311823]

In 35 years messing with A/c and military equipment I’ve never seen dimpled skins on an A/c. I’ve seen it on vehicles and trains. The dimpling is a metal deforming process which is bound to induce cracks, so I doubt if that practice is used today….but we are talking olde worlde days of Historic A/c. I stand to be corrected.

Dimples not used today!!!….you should get out more.:)

Still a lot of it about, both in old and new aircraft, no does not normally induce cracks.

Cheers Chumpy.

…..RR232 that one was finished quite a while ago, currently back with it’s owner.

….Next up G-PBIX!!!

TE477 – I located this via Google. We seem to have discussed this before.

http://forum.keypublishing.co.uk/archive/index.php?t-22339.html

Many thanks Mark, you had me worried for a moment!!

Chumpy.

..Another one from Ford 1954 Sea Balliol WL719. Also from the same author one of Firefly VT429 this taken at Yeovilton 1956, didn’t young lads have great fun back then..not a risk assemment in sight!!

Brian, Happy to be of service, oh to have been there etc.

My only claim to fame re the Wyvern was being very lucky to have sat in the cockpit of the FAA museum example about 15 years back.. What a beast of a machine!