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chumpy

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Viewing 15 posts - 316 through 330 (of 549 total)
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  • in reply to: Spitfire Firewall Question #1198055
    chumpy
    Participant

    Hi Tony,
    Mackerel is probably down the pub, so I will reply!

    We had a close look today.. Mackerel is correct, every other rivet goes through the top-hat. Pitch is about 1.5″, those in between are CSK into the firewall skin. Normal tail on the forward side, not double flush like I guessed last night!

    As for the top curved angle, this on the forward face to take the top engine cowl panel. Similar riveting standard to the top-hat but 1″ pitch, those in between CSK on the forward face going right through the sandwich, normal tail on rear face.

    Note SP58 Rivet Burrs used under the tails to stop the skins denting in, also under rivet heads in the middle of the skins.

    Cheers, Chris..aka Chumpy.

    in reply to: BN Islander Restoration?? #1198320
    chumpy
    Participant

    Alas no real progress on the restoration of G-AVCN, after some intial work the project stalled due to funding issues. ‘VCN currently in external storage at Bembridge, pending a decision on her future.

    Chumpy.

    Photo credit Mark Shepherd

    in reply to: Spitfire Firewall Question #1199013
    chumpy
    Participant

    Lets all have a look tomorrow!

    in reply to: Spitfire Firewall Question #1199158
    chumpy
    Participant

    The original asbestos ‘mill board’ as it was called, is about 1/8″ thick, bog-standard hardboard makes a very good ‘non-airworthy’ substitute.

    The top-hat stiffener rivets right through the lot, though I think there are a few double flush rivets that hold the sandwich together before the top hat is fitted. These pitched in between the holes in the top-hat.

    Chumpy.

    in reply to: Help needed to identify spitfire wing #1201419
    chumpy
    Participant

    Certainly looks like a PR Spit wing to me, the internal structure outboard of the wheel-well unique to PR’s. This the bay where the wing mounted cameras where fitted.
    The attached photo looking on the underside of a Mk XIX, access door removed, pretty much the same as an XI.

    Chumpy.

    in reply to: Duck egg green .. or.. #1204961
    chumpy
    Participant

    ..Just to add a splash of colour, this of interest perhaps?

    An original set of Dupont paint chips to MAP standards, these individual pasted in samples, not a Dulux style printed colour leaflet. I presume intended for U.S. manufacturers building aircraft destined for the RAF?

    Chumpy.

    PS Please adjust your monitors to suit your own particular taste!

    in reply to: Shackleton fuel? #1212755
    chumpy
    Participant

    Thanks to all for the input.

    Was standing there this afternoon thinking along the same lines as Anon,..’ere Sarge is this where I put the Four Star..etc’!

    Ta again, Chumpy.

    in reply to: Poling (Chain Home) Radar Station #1232253
    chumpy
    Participant

    A couple of shots of Poling, scans of small snapshot’s from my collection..the masts in 1958. View of buildings and mast bases taken in 1960.

    Chumpy.

    in reply to: Spitfire spade grip picture needed #1163269
    chumpy
    Participant

    A couple of shots of said firing button for you….. A complex bit of kit inside, spring loaded pistons, toothed gear-plates that link the switch on the bottom to the indicater pin on the top.
    A tricky thing to make, but not impossible..have fun!

    Chumpy.

    in reply to: Looking for a list of DRG numbers #1167419
    chumpy
    Participant

    Hi Nils,
    As I mentioned before, I do not have a detailed knowledge of the wing structure of the Wellington. As you can see from the list that I sent there are many different sections. Inner / Outer..Upper / Lower mainplanes etc. The list was drawn up in the 1930s to cater for biplane construction hence the many mainplane sections.

    In this case Top Outer Main-Planes means the section of wing outboard of the engine nacelle on the Wellington. The photos look to my eyes like a joint in a main-spar boom. So could well be where they join the Inner section.

    Hopefully there is a Wellington expert out there who can confirm this. Might be worth you starting a new thread with a ‘Wellington’ title, to attract a suitable expert!

    Chumpy.

    in reply to: Tubular Rivets- how are these installed #1168727
    chumpy
    Participant

    Was passing by our store today and fished out a couple of the beastly things!…As used on Hurricanes etc.

    in reply to: Portuguese Miles Martinets #1171022
    chumpy
    Participant

    Mine is the 1987 edition…

    in reply to: Tubular Rivets- how are these installed #1171106
    chumpy
    Participant

    I guess we must go back in time and ask Sydney Camm, I can but presume he was not keen on welding!

    in reply to: Looking for a list of DRG numbers #1171593
    chumpy
    Participant

    Whilst I dot not have a detailed knowledge of the Wellington, the data plate is ‘standard’ Vickers. Similar plates used on Spitfires, the Supermarine company also using the Vickers method of part numbering.

    As previously mentioned the first three digits denote the aircraft type. The next two digits the particular section of the aircraft structure eg ***18 Tailplane…***44 Petrol tanks.

    In this case the ***03 denotes Top Inner Main Planes, the last three numbers denote the idividual part or sub-assembly.
    In the case of Spitfires this sort of plate was only applied to major sub-assembly items, hence the ‘61424’ serial number, so I suspect the same for Wellingtons.

    Thus the full Drawing Number for this item is 28503-808.

    The ‘BQ3’ is a factory date code, again similar found on spits.

    Cheers, Chumpy.

    in reply to: Portuguese Miles Martinets #1171605
    chumpy
    Participant

    A couple of ’em would look to be RG980 & RG981 according to Brit Mil A/C Serials by Bruce Robertson.

    No other mention that I can see in the above volume, or in a couple of Air Britain serials books that I have.

    Cheers, Chumpy.

Viewing 15 posts - 316 through 330 (of 549 total)