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More mystery objects

I’m trying to identify what these are. They appear to me to be suspension arms, but for what? If indeed that is what they are …

There are no visible markings, reference numbers, makers name, etc, so nothing obvious to identify these by. I’ve included a 50 pence piece in the photo to give some scale. Any suggestions welcome.

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By: FoxVC10 - 31st October 2012 at 07:41

Not 100% sure. I have only dealt with Nimrod parts on a small basis and never seen a Parts Catalogue…. and I have never dealt with Comet parts. I would have to say that I would assume that 6M would be Nimrod only although I am pretty sure that there probably would have been some cross referal both ways. The number breaks right down from aircraft type, series, where it goes on the airframe to the “individual part number”. In this case 6M 4 EC. It is by no means an exact science. With access to a parts catalogue someone could tell you probably what it is, where it goes and how many are on the aircraft within the space of a minute, and perhaps provide a pretty picture as well. I would be able to give a list of the part number letter codes in an hour or so.

The 6 is the deHavilland Comet and Comet related parts. Bruce may well know more.There is a list on this very forum (somewhere) but it is, of course, by no means complete. I deal a lot with aircraft parts as my business and I am always learning when I have in new stuff, and a lot of it stays in my head… bit sad really – I can remember crap like this but have a problem with my familys birthdays although I have never forgotten my wedding anniversay but the wife has!!

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By: MJA01 - 30th October 2012 at 20:46

I would have thought the R1R at the end of the part number would be a designator for the Nirmod mk1R jets, it is possible they modified loads of bits during the conversion making them mk1R specific.

6M4 is Nimrod from what I remember of the drawing sets, I was thinking these brackets were part of the nosewheel compartment on the mk1R which had large panels that opened on at least the Port side of the jet, the mr2P had a Doppler radar fitted in the bay behind the nosewheel just fwd of the bomb bay but on a mk1R it housed something else, I recall seeing one open on the deck at Wadd a few years ago but no idea what it was for. It is entirely possible main gear door brackets were modified to act as hinges for the nose compartment but it is difficult to find many pictures of a mk1R on the deck in bits……

Perhaps a close look at the one at Cosford or EMA would show these up – Mike

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By: RadarArchive - 30th October 2012 at 17:46

These are indeed Comet engine door hinges, and match exactly with the hinges on one of our doors, as per the attached photos. Thanks everyone for your help in identifying these – it’s much appreciated.

FoxVC10: Is 6M only Nimrod, or would it also apply to the Comets operated by the RAF? These may well be Nimrod (in which case we’ve collected them at some point in the past in order to have spares for our Comet) but it does make me wonder if they might have been for military Comets.

Incidentally, is the number 6 a manufacturer’s designation for the Comet and Comet parts? Are such designations listed anywhere? I ask because if it is possible to access such lists anywhere, it would save me asking fool questions on this forum!

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By: RadarArchive - 30th October 2012 at 13:38

Thanks loads for this, guys. I suspect they’ve been here since the 1990s and from the collection we have, I strongly suspect Comet as a contender. I’m sure I’ve checked the undercarriage doors, so I don’t think that is a possibility, but I’ve not looked at the engine doors. Clearly I need to have another look at the Comet.

If I find a match, I’ll let you know.

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By: nostalgair2 - 30th October 2012 at 12:20

Mystery hinges

Well Linread produce lots of bits here in redditch for Airbus, are we looking at something a little more modern perhaps?

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By: FoxVC10 - 30th October 2012 at 12:08

Agree with Bruce, But I think more Nimrod than Comet..

6 is Comet Family
6M is Nimrod
4EC indicates the rough area on the airframe it goes. No idea what EC is so as Bruce indicates EC perhaps indicates the engine area so poss Engine Door hinges??

The A25 is a standard UK AGS bolt – manufactured by lots of manufactures including Linread.

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By: Bruce - 30th October 2012 at 11:32

That will make them Comet then, and possibly Nimrod.

Engine door hinges?

Bruce

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By: RadarArchive - 30th October 2012 at 11:27

I’ve now managed to remove some of the white paint off these objects to reveal the numbers underneath. I hope someone might recognise these and be able to identify the objects as a result. As you will see from the first image, four ‘hinges’ are identical, with two slightly different.

The four are numbered: 6 M 4EC 535 ND
R1R

The other two are numbered: 6M4 EC 529 ND
R1R

Any suggestions would be most welcome.

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By: RadarArchive - 26th April 2012 at 16:26

Look American(ish) to me possibly

Any part number or stamp on the bolt heads?

I’ve now checked and the bolt heads have Linread A25 stamped on them. The objects/hinges have all been poorly overpainted with white paint but vaguely discernible on the side is a series of letters and numbers: CM45C 535MD R1R as per the photo below.

I did wonder if this indicated C-45 Expeditor, but I’ve checked with a Beech 18S and they’re definitely not undercarriage doors hinges from a Beech 18 (although I’ve not checked the passenger door).

Any ideas?

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By: bloodnok - 25th April 2012 at 19:22

They do look similar to C-130 fwd nose u/c door hinges…..but they aren’t. Despite what previous posters have said, they bolt on and are undercarriage door hinges. 😉

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By: JT442 - 24th April 2012 at 22:38

I know…. they’re almost certainly some kind of door hinge, but from what type of door, I have no clue. The S-76 rear cabin door on VIP configured aircraft looks to be at least an inch thick, but I can’t find a good photo of the actual bracket. It’s bl**dy annoying…

Is this the first time the forum has been stumped? If so, well done that man! 😀

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By: RadarArchive - 24th April 2012 at 22:23

That’s certainly very similar, although it’s a flat plate and doesn’t have the strengthening ribs, which few hinges seem to.

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By: RadarArchive - 24th April 2012 at 22:01

Thanks. I appreciate your efforts to remember where you’ve seen these. It’ll probably come back to you when you’re thinking about something else!

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By: JT442 - 24th April 2012 at 21:45

I can tell you which nose u/c door links they are NOT – F4, A6, A4, F14, F16, F18, F86, Harrier, Tornado. Wing fold mechanisms don’t appear to have anything like that at all… The irritating thing is that I’ve seen them before, but I can’t remember what on. Could have been anything…. Still working on it, since it is now doing my head in….

Getting closer… F84 is along similar lines, but again, not the offending items. http://www.flickr.com/photos/24302898@N08/5916814405/

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By: RadarArchive - 24th April 2012 at 21:40

Any idea where they came from?

‘Fraid not, sorry.

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By: JT442 - 24th April 2012 at 20:51

I KNOW its not the same, but here’s a door hinge with bolts (from a Phantom) http://data3.primeportal.net/hangar/isaac_gershman/rf-4e/images/rf-4e_15_of_72.jpg

currently seaching US military aircraft nose door hinges, and wing fold mechanisms…..

Any idea where they came from?

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By: RadarArchive - 24th April 2012 at 18:16

I have to agree with JagRigger. These don’t come close to matching any undercarriage door hinges I’ve seen, none of which are bolted on. I’m assuming that everyone who identified them as hinges was saying “that’s what they look like,” rather than “that is definitely what they are.” It does’nt look like they are u/c door hinges, unless someone can provide a photo showing one in situ.

This then begs the question: if they’re not undercarriage door hinges, what are they?

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By: JagRigger - 23rd April 2012 at 13:08

This is really eating at me now…..

I’ve looked at just about every walkaround picture I can find of Shackletons, Tornados, Buccs etc – no joy.

What is really odd on these is the structural mounting side, where they appear to be attached by horizontal bolts. Most door hinges are flat rivetted / bolted to the door surface

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