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Old 08-01-2008, 05:03 PM   #11
Bob Gardner
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Jan,

I agree about the wooden hulls of flying boats. There is one at the RAF Museum which is absolutely gorgeous. I feel the same about wooden props. I suspect that my interest is in beautiful wooden artefacts which were built for some functional purpose and almost by accident turned out to be elegant.

An afterthought about your prop. Pusher props and seaplane props almost always had brass cladding to protect the tip and leading edge from FOD and seawater, and of course the pilot's maps and pencils, and the navigator if things got really bad! Neither of these props have any brasswork and as a generalisation this makes it very likely that yours is not from a seaplane or flying boat.

With regards,

Bob
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Old 08-02-2008, 09:31 AM   #12
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Hi Bob
Nice woodwork beats everything.And thats that!
My pics of the seaplane shows the brassed tips.
Ups! A propeller-detective must notice every detail.
The prop do has a reinforced leading egde,allmost black wood,mounted with brass screws.See pic.
http://i280.photobucket.com/albums/k.../propel007.jpg
It is not a pusher,comparing the pics of the 80 ps.
To summen up:
German PreWW1,Reschke,Fokker m5 ?
More pieces to the puzzle.
I will now search for info on preww1 planes here in Denmark,military or civil.
Jan
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Old 08-02-2008, 04:24 PM   #13
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Hello Jan,

That's an ebony or lignum leading edge intended to provide some slight protection. I have only seen it on Eta props before, I think, and I certainly don't recall seeing it on a Reschke prop. But as ever, I'll go and check my records and data. Might I use this photograph in part III of my book on German WWI props which describes Reschke props, amongst others?

Although Fokker used props of much this size on the EIII etc they were generally made by Integral and I have no record of a Reschke prop on a Fokker. My thought that it might be from a Gnome powered Fokker pre-dated our discovery that it was a Reschke prop. I forgot to mention this.

Keep in touch and tell me of any discoveries. I'll do a bit of research as well.

With regards,

Bob
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Old 08-03-2008, 03:50 PM   #14
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Jan,

Another lead, although not entirely convincing.

I have found a photograph of the Nielsen og Winther 'Nieuport' type aircraft made in Denmark in my copy of Jane's for 1919. It has a prop that looks very like yours. But the aircraft is said to have a 90hp Thulin engine, which I think was a copy of the Le Rhone engine.

One of these aircraft is on show at the Teknisk Museum i Helsingør, where the prop seems to be different from yours but of a somewhat similar shape.

I don't think this is the answer but a study of aircraft made by Nielsen og Winther might provide the answer. If we don't discover it ourselves the museum might well have the answer in their records.

Bob
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Old 08-03-2008, 04:29 PM   #15
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Hi Bob
Your comment on the leading edge makes my think,the Reinforcement might well be some repair.The leading edge is vunerable when landing in high grass,corn,etc.The tips or hole prop when nosediving.(Very common according to history)
And,if its a repair it will explain the lack of any decals,a refurbish would include;cutting,sanding,lacquering...
I have seen a pic. of The Fokker III on the net somewhere,with a prop shaped like the Reschke,Though the lamination was more rough (fewer layers) and it seemed to have a very light wood in it.Cant find the pic!?
Do you (ore anyone) have some info on when the 100ps.was aviable ?
Did Reschke and/or other german prop manufactories,used the name gnome,also for the oberursel version ?
Just trying to add some bricks to my puzzle !
Jan

PS Sorry about my english,hope its clear enough.
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Old 08-03-2008, 04:53 PM   #16
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Jan,

I am not knowledgeable enough about Gnome engines to answer your question but the German version was made by Oberursal (the town where it was made) and called the U I. The Oberursal copy of Le Rhone engine was the UrII, I believe. I understand that the French built engines were better than the German copies so captured Gnome and Le Rhone engines were much prized and immediately put into German machines, usually those of the aces.

This might explain why some German props are marked for Gnome or Le Rhone but most for the Oberursal I or II.

Bob
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Old 08-04-2008, 04:02 PM   #17
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Old 08-04-2008, 04:03 PM   #18
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Hi Bob
Well this is a little embarressing since some of my posted pics actually shows the Nielsen&Winther.(N&W)
fighter with a Thulin motor(no spinner thoug):
http://i280.photobucket.com/albums/k...j2005156-1.jpg
Heres the motor(See the "vanilla note" ? lower,left corner)
http://i280.photobucket.com/albums/k...j2005163-1.jpg
I searched a bit on Thulin,and his motors (90-110ps) was "improved" Gnome/Le Rhone motors.
Much confusion about Le Rhone and Gnome.See this:
http://content-delivery.co.uk/aviati...meLeRhone.html
you might like to see this:
http://www.kwmairpl.com.ph/pdf_files/rc-01sw.pdf
The prop on the N&W has the straight leading egde,with the dark reinforcement.
This is very like my prop,unfortunally i was concentrating on engines when i took the pics.
I will take some more,soon i hope.
Another embarressing thing,i toke the prop down from the wall today to take some more pics.
I took the opputunity to measure the diam.Marked D250.SHOCK! Its exactly 200 cm,tips must have been removed at some
point,presumable along with the vandalizing of the hub.Very depressing.
Anyway heres some more pics.Not very good im affraid.
The illfated hub:
http://i280.photobucket.com/albums/k...s/PICT0029.jpg
Leading egde dark wood with brass screws:
http://i280.photobucket.com/albums/k...s/PICT0018.jpg
http://i280.photobucket.com/albums/k...s/PICT0019.jpg
Cutted Tip:
http://i280.photobucket.com/albums/k...s/PICT0020.jpg
I think the N&W factory is the best candidate so far.I´will try to get more info.

Jan
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