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Unusual Boat Propellers?

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Martin King 2	05/08/2019 17:57:16
1129 forum posts 1 photos	Hi All, Came across these at the car boot yesterday and my magpie fetish grabbed me by the wallet! The are two LH & RH props for what exactly? The blades are not the usual shape but have a straight cut across them. Some one said they are 'surface acting' whatever that is. They will probably end up as 'steam punk if they do not sell! Nice bit of boat jewellery though! Cheers, Martin
martin perman	05/08/2019 18:33:10
2095 forum posts 75 photos	This website of the makers might help LINK Martin P
Alan Vos	05/08/2019 18:45:55
162 forum posts 7 photos	Posted by Martin King 2 on 05/08/2019 17:57:16: Some one said they are 'surface acting' whatever that is. From what I recall, they will still work well when not fully submerged, interacting with the surface of the water. For a fast boat.
Old School	05/08/2019 19:37:18
426 forum posts 40 photos	Surface piercing propellor run with only about half the prop in the water very efficient for fast boats, they give a lovely rooster tail.
Brian G	05/08/2019 20:47:10
912 forum posts 40 photos	The Irrawaddy Flotilla tried a type of surface piercing propeller called a vane wheel, but I don't think they had a reputation for speed. LINK Brian (Edit: Punctuation corrected) Edited By Brian G on 05/08/2019 20:48:04

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