VDM spinners on DH hubs

Just wanted to say thanks folks for the posts and PMs. Got it all clear now.. thanks to the forum. Jason, that backplate image was very helpful in confirming that DH backplates are very different to CSA / VDM ones on DH hubs.

I don’t think there were any Spits with the VDM / DH combo.. that’s really what I was getting at. I think the 3 blade dH prop / VDM spinner combo is unique to the Whirlwind, and thus the image in the ad I posted earlier might be of a WW spinner. However, it might be of a DH design that looks externally like the VDM, also manufactured by CSA as subcontractors to DH but not therefore a WW spinner. To establish that either way I was looking for contemporary DH backplates for comparison, and the Spit seemed a good place to start.

Here is a photo of the prop from R6915 which shows a DH prop but not with a VDM spinner, as P9374 is a earlier spec spitfire would it not have been fitted with the same? If not anybody got any idea which Mk 1 spitfires were fitted with VDM spinners and DH props?

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Wondering if Tangmere has any photo’s of the spinners type which P7394 has today that he can share.

Regards

John

Ross

I learnt from the best :highly_amused::highly_amused:

I can never be accused of teasing

Hahahaha you hussy :highly_amused::highly_amused::highly_amused:

Found this http://www.flightglobal.com/pdfarchive/view/1938/1938%20-%200755.html

Martin

..this is the best I have of an ‘original’ – Andy S, do you have any better shots of the business end of P9734?
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Thanks, but not recognising Spitfire stuff? I could be shot for that!

Pics of large diameter DH backplates as per Spitfire are very rare to say the least. I am looking for one to prove that this ISN’T one..

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Well done Beermat..indeed this is a rotol prop as fitted to Spitfire Vb BL628.
I believe the same principal in construction/sizing etc is the same for DH props

Regards

Jason

Odd shape.. look like Rotol blades.. Nope, still blank..:confused:

I can never be accused of teasing 😀
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Bump! Oldgit, can you give more info on the backplate(s)? Cheers, Matt

Backplates of the sort I was referring to – though what sort of diameter are they? Certainly look nice – recent manufacture? Where is the rest? And, most of all – is this for a DH prop??? Come on, don’t tease..

Came across these

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I’m only a stones throw from MAPS but their opening times can be a bit haphazard, I will pop over a see if anyone is there this weekend.

Beermatt – check your PM’s.

Snoopy, yep – that’s the one 🙂 Please do get in touch! Have PM’d my email addy.

Redvanner – yes, thanks for that – that’s possibly the best reference we found, and what I first learned about them from. Indeed, who knew a spinner could be so complicated?

Chris – I’ll give them a call – unless there’s anyone on here from MAPS? They might be able to help with wheels, as well (have you seen the (too large) tyres that used to be on the Defiant? Could easily be ‘right’ for us..)

@Beermat: I guess you have this pdf file? It is quite interesting, how it works, never knew it.

http://www.google.de/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=2&cad=rja&ved=0CDkQFjAB&url=http%3A%2F%2Fwww.flightglobal.com%2FFlightPDFArchive%2F1939%2F1939-1-%2520-%25200225.PDF&ei=j_ZcUpn-JYmetAa-24CQBg&usg=AFQjCNGUmD5Wse31c20YayRaY3Anxvplrg

Michael

This is a long shot, because I normally keep away from the big stuff, but is this the type where you insert a key/tool, and there is a slip-ring in the backplate that then releases the spinner….? If so, I might be able to help…:o

Could MAPS help? that’s the guys at Medway who refurbished the Defiant for the RAF Museum.