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Old 07-27-2011, 07:12 AM   #11
Bob Gardner
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'Morning Dom,

Yes, they do. Perhaps the role of assistant to Scott-Paine means that he was a design assistant and the role of assistant works manager included design work.

Bob
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Old 08-01-2011, 05:13 PM   #12
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Hi Guys
I had a look at the prop in the museum, unfortunately the markings on the hub are very dufficult to make out and even more difficult to photograph.
The markings that can be seen are as follows

B.*
AD6**
110HP LERHONE
*****
*****

Also on the blade near the hub is the no. 73
Near to one of the bolt holes is the no. 548

I couldn't seen any decals on the blades although there were small dowels at even intervals along the blades
I've included the best of the photos.
Anyway, I'll be interested to see what you think.














EDIT: Some of the photos shown as links below added as attachments for convenience.



http://www.freeimagehosting.net/20b13
http://www.freeimagehosting.net/121bb
http://www.freeimagehosting.net/342df
http://www.freeimagehosting.net/6bdd5
http://www.freeimagehosting.net/5dd52
http://www.freeimagehosting.net/36eaa
http://www.freeimagehosting.net/813dc
http://www.freeimagehosting.net/b2620
Attached Images
File Type: jpg 5dd52.jpg (61.9 KB, 58 views)
File Type: jpg 20b13.jpg (76.7 KB, 58 views)
File Type: jpg 6bdd5.jpg (98.2 KB, 57 views)
File Type: jpg b2620.jpg (100.1 KB, 57 views)

Last edited by Dave; 08-02-2011 at 02:55 PM.
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Old 08-02-2011, 10:53 AM   #13
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Well done Dom,

You've done a good job.

It's a Sopwith Camel prop, drawing number AD644. This was an Air Department of the Admiralty drawing number but this does not necessarily mean that it is from a Naval Camel. When the Air Board was formed in 1917 to bring about the formation of the RAF from the RFC and the RNAS one of the first tasks was to sort out the huge numbers of different types of propeller. Mostly this was done by comparing the performance of different props on a trials aircraft. The Navy's AD644 proved to be marginally better than the Sopwith's own prop LP2850. (By this time Sopwith had bought the Lang Propeller Co. who had been a major supplier of props to Sopwith and the company became Sopwith's prop department, although the name never changed.) Most surviving Camel props are AD644. The diameter was 2660mm and the pitch was 2650mm. The diameter of this prop at 2640mm can be explained by the licence given to prop makers to vary the length by up to 10mm because each prop was handmade, and by the possibility that damage to the tip was smoothed out either in service or by a later owner. The top letters in the data are B & P for Boulton & Paul who made large numbers of these props for the RFC and later RAF. I have seen an example with the serial number 15258 so perhaps the number 548 on this one is part of a similar number. The patination on the prop is lovely, just as it should be. Hopefully the Stoke Museum will just polish it with a few coats of pure bees wax. This was a standard Camel prop from November 1917 to the end of the war.

With kind regards,

Bob
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Old 08-02-2011, 05:28 PM   #14
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Hi Bob
Thanks for your help, I'll pass the info onto the museum staff. They appreciate the importance of the prop and don't intend doing anything other than give it a good waxing. They intend to eventually show it in the same hall as the mark XVI Spitfire currently on display.
Regards
Dom
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Old 08-03-2011, 06:37 AM   #15
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Thanks Dom. It's lovely that we had a successful outcome!

With kind regards,

Bob
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Old 08-05-2011, 02:12 PM   #16
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The identification of the propeller after great team work here, makes this forum so worthwhile.

Well done to you all.

Regards,
Bob.
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Old 08-07-2011, 01:07 PM   #17
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Hi
I've had an e-mail from the Museum and they have asked me to pass on their thanks to Bob Gardner for his help.
They also wondered if the number 73 stamped on the prop could suggest that it had been used by No. 73 Squadron who appear to have used Sopwith Camels. Has anybody seen the intended destination stamped on a prop, by a manufacturer or by a supply dept?
Regards
Dom
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Old 08-07-2011, 11:01 PM   #18
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Quote:
Originally Posted by dharding View Post
They also wondered if the number 73 stamped on the prop could suggest that it had been used by No. 73 Squadron who appear to have used Sopwith Camels. Has anybody seen the intended destination stamped on a prop, by a manufacturer or by a supply dept?
Regards
Dom
I do think that's unlikely. Propellers were more like tires than anything - produced in large quantities knowing that they would be frequently replaced. As a consequence, there wasn't much hoopla involved in attaching them to a specific plane.
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Old 11-11-2011, 02:34 PM   #19
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Hi Guys,
I've just received this e-mail from the Potteries Museum & Art Gallery and thought I'd pass it on.

Hi Dominic,

Hope all is well with you.

You might be interested to know that the wooden propeller is now on display in the Spitfire gallery at the museum
- a label is being prepared and will acknowledge the help of the wooden propeller forum.

Again, we are very grateful to yourself and your colleagues for all your assistance.

Regards
Don

Don Steward | Collections Officer (Natural History)
Neighbourhood Engagement and Partnerships | People: Adult and Neighbourhood Services Directorate City of Stoke-on-Trent
The Potteries Museum & Art Gallery, City Centre, Hanley, Stoke-on-Trent
ST1 3DW
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