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Sorry for the lack of updates, Been crook as last couple of weeks, Well most of the bottom is sheathed with plywood now the exciting task of sanding before fiberglassing and fairing. Watch this space Lol.
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A 1.5m Brave Borderer is going to need a powerful motor if it's to drive two props through a gearbox. Is there no way you could use two motors, then you could space the shafts as far apart as you like?
G.
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Thanks' Doug, I remember reading somewhere that the space between props should be 1.5-2 times the diameter of the propellers, which calls for a minimum of 82.5. Thank you for the reply
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Hi Chris, Don't see your problem๐ If you put two 55mm props tip to tip the distance between their centres will be 55mm.๐ So you will have 78.6-55=23.6mm between the prop blades when the shafts are fitted to the gearbox.
BTW: Our Brave Borderer guru is a great builder and 'good bloke' from Canada. User name 'Rowen'. Check out his Brave Borderer Build Blog at link below. Cheers, Doug๐
blogs/40884?sort=ASC
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Young at heart ๐ Slightly older in other places.๐ Cheers Doug
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Hi All I am building a 1.5Mtre PT boat, Running twin props, My problem is my gearbox is 78.6mm centre to centre running twin shafts with 55mm four bladed props. if I run them parallel I will not have enough distance between the props. My question is would it be possible to run them in a slight "V" TIA Chris
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