JekRankin
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| posted on 16/6/19 at 04:05 PM |
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Prop tube diameter
Typically, what tube diameter is used for a two piece BEC prop?
The front section on mine looks pretty skinny compared to some other's ive seen....its only 40mm dia. whereas I see Bailey Morris's
standard tube dia is 50.8mm.
Jek
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adithorp
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| posted on 16/6/19 at 06:42 PM |
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40mm sounds small. Don't know what mine is but 50+ I'd guess from memory (it's a Bailey Morris prop). Where did your come from?
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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JekRankin
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| posted on 17/6/19 at 12:02 PM |
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Yeah mine is from Bailey Morris also. Bought it years ago and think I just asked for BEC spec 2-piece prop.
Found the old order paperwork recently and noticed that their standard BEC props have 50.8mm tubes and indeed the rear section on mine has a 50.8 tube
going into the TRT. Maybe best give them a call.
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nick205
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| posted on 17/6/19 at 02:54 PM |
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1 inch = 25.4mm so 2 inches = 50.8mm.
Not sure why they'd use imperial and not metric diameter tube though.
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JekRankin
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| posted on 17/6/19 at 02:58 PM |
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Yeah I thought the 40mm tube might actually have been 1.5" dia (38.1mm), but sure enough it's 40mm.
Had a chat with Bailey Morris earlier and apparently it's not uncommon for the bike props to use a 40mm tube in the short front section. Still
looks quite skinny to my eye though.
Jek
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Hellfire
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| posted on 19/6/19 at 11:54 AM |
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If the front and rear tube diameters are similar to the prop in the photo below, it will be fine for at least 13 years use. 
Phil
 
Littledf
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