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Post by rone on Apr 16, 2015 20:12:42 GMT 12
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Post by rone on Apr 16, 2015 21:26:19 GMT 12
A clue to its age is the method of attaching the leading edge protector metal, it is totally different to later wooden props, ie. as on Oxford. The blades are very coarse pitch, possibly from a low rev. engine perhaps, this might explain the large diameter. The blades are 11" wide at the widest section. Over to the experts now
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Post by rone on Apr 16, 2015 21:36:19 GMT 12
A clue to its age is the method of attaching the leading edge protector metal, it is totally different to later wooden props, ie. as on Oxford. The blades are very coarse pitch, possibly from a low rev. engine perhaps, this might explain the large diameter. The blades are 11" wide at the widest section. Over to the experts now
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Post by Dave Homewood on Apr 16, 2015 21:39:38 GMT 12
11 foot means it's too small to be Vildebeest, Vincent or Baffin,
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Post by rone on Apr 16, 2015 21:53:27 GMT 12
Sorry Dave, it is 11" wide across the widest part of the blade, total length blade tip to blade tip is 9feet 6& a half inches
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Post by TS on Apr 16, 2015 22:31:45 GMT 12
Walsh Brothers... Boeing Don't knock it. It could be....
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Post by Bruce on Apr 17, 2015 8:40:25 GMT 12
I initially thought it could be a Singapore prop as the thrust face seems to be on the front, making it a pusher prop. However, the Singapore had a Tapered hub that faired into the prop spinners. I suspect that this could be half a Walrus prop. Its about the right size and shape, and 8 Mounting holes allow 2 props to be set at 90 degrees to one another.
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Post by rone on Apr 17, 2015 10:21:11 GMT 12
I had considered Walrus because on the opposite face of the boss are 2 extra holes for possibly dowel pins to locate another prop at 90 degrees
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Post by rone on Apr 17, 2015 10:23:21 GMT 12
I still believe it is older than a Walrus. Where are the old plane buffs when I need them?
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Post by ZacYates on Apr 17, 2015 10:23:55 GMT 12
Where are the old plane buffs when I need them? Um.... We're trying! A Google search for "Supermarine Walrus propeller" brings up a LOT of model photos, but this one may help: www.flickr.com/photos/tudedude/2882691995/in/gallery-39411748@N06-72157628098676946/ It's painted, but may help ID/debunk this prop. Warbirdsite.com has one here: www.warbirdsite.com/museumprops.html Also painted, and a small photo, but it shows the mounting holes. I can't really tell much from it, though. I'd be inclined to go with Walrus at this stage as the RAF Museum example in my first link shows a kinda similar leading edge guard.
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Post by Bruce on Apr 17, 2015 10:26:31 GMT 12
looks similar...
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Post by ZacYates on Apr 17, 2015 10:28:17 GMT 12
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Post by rone on Apr 17, 2015 11:35:15 GMT 12
I will take a picture as soon as the camera charges up. Zac, I had a good look at that Walrus shot, I reckon it can be eliminated, the blades are too straight in shape. You will see from the new picture what I mean. I have to call on Dave's services again to get it loaded
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Post by rone on Apr 17, 2015 11:39:25 GMT 12
Also the leading edge protector is different, the Walrus strip is the more "modern" style, it appears to cover most of the leading edge.
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Post by rone on Apr 17, 2015 12:01:50 GMT 12
I have studied all of the props. in the links supplied, it is not like any of them so keep trying , the photos will come later. I believe it originated from Australia so that probably widens the field maybe.
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Post by scrooge on Apr 17, 2015 14:53:39 GMT 12
10 mounting bolts on the Walrus for what it's worth
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Post by scrooge on Apr 17, 2015 15:03:20 GMT 12
Also this prop rotates RH (as does the Walrus but not a Cheetah)
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Post by FlyingKiwi on Apr 17, 2015 17:33:41 GMT 12
It's very similar to one we have hanging in the aero club building, which I've not been able to identify the origins of, but does say "Sunbeam Motor Company" on it which might suggest it was fitted to a Sunbeam engine originally? (not sure if Sunbeam supplied props for engines not made by them?)
May also not be the same at all, but it certainly looks similar.
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Post by rone on Apr 17, 2015 19:44:41 GMT 12
Apologies for the delay with more pictures, my mail to my helper did not go through.
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Post by rone on Apr 17, 2015 19:47:14 GMT 12
It's very similar to one we have hanging in the aero club building, which I've not been able to identify the origins of, but does say "Sunbeam Motor Company" on it which might suggest it was fitted to a Sunbeam engine originally? (not sure if Sunbeam supplied props for engines not made by them?) May also not be the same at all, but it certainly looks similar. I have found "21" stamped on the face of the hub
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