The first unit is clearly some kind of navigational computer, with settings for latitude and longitude as well as “radar wind” (presumably to calculate drift), inputs for destination and a reference to magnetic variation. This all seems to indicate some form of navigational system. It might be from a Shackleton, but I can’t guarantee it and it could well be from some other aircraft type. However, I would hope that someone might recognise it, or at least be able to suggest what it might be. Any information that can help identify this, or the other bits of kit, would be much appreciated.

I don’t have exact dimensions just now, but it is definitely too small to fit a cartridge starter inside, so I don’t think it is from a turbojet engine. I should be able to get measurements next week, but the diameter has to be approximately 12 inches.

The pins are way too large to fit, I’m afraid. I think the holes on the brackets would be for bolts.

Thanks aeronut. I quite agree and should have included dimensions originally. Without scale, they do indeed look like flying wire pins – I just wasn’t sure if there is some situation where you might have something like that on this scale.

So would this be for holding a soldering iron, or something like that?

Sadly, not. We’ve looked all over it and can find no numbers on it anywhere.

OK, well thanks anyway. This is tremendously helpful.

Bill,

Thanks for this, but I’m pretty certain they are aviation related. The ones not in frames look fairly standard, if not particularly large. I’m not sure why a few are in these frames, but they all have the same part number, so I’m sure they are all from the same application, and I don’t think it is agricultural in any way.