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Author Topic: Changing prop material?  (Read 528 times)

Oh How Original

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Changing prop material?
« on: September 12, 2017, 03:29:59 PM »

Hoping to hit the lake this weekend to maiden my new Proboat Shockwave, but want to take the TT Avanti along for my Dad to use.
It needs a new prop though ideally because this one has a small chip out of it.
How do you measure a prop to get the correct size?
Having trawled on Google I can't find an answer to what size it comes with.
Their also seems to be a vast array of materials they're made from, is it best just to stick with whats on it, or could it benefit from changing from plastic to something else?
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Oh How Original

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Re: Changing prop material?
« Reply #1 on: September 12, 2017, 04:39:58 PM »

Can't seem to edit the original post.
So, from tip to tip, the prop is 40mm.
Where the shaft goes through is 12.5mm thick with a 4mm bore.
I can't find a single prop online with these measurements  {-)  typical luck!
The original part number is; TT5015, but again, I can't find stock and it doesn't give any indications as to what else will fit.
Any suggestions would be highly welcome!
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tsenecal

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Re: Changing prop material?
« Reply #2 on: September 12, 2017, 06:21:54 PM »

quick google search found the thunder tiger part # available on ripmax.com


judging by what it is, i would GUESS that it is a 1.4x prop, ie the pitch is 1.4 times the diameter, which is common for fast electric boats.  in that case any 4mm 40mm 1.4x fiber reinforced plastic prop will work, or for a little more speed, something with identical specs made of bronze would work.   my problem is, being from the land mass i am from, all the sources i know of will be for a propeller with a 3/16" bore, not 4mm.
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Oh How Original

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Re: Changing prop material?
« Reply #3 on: September 12, 2017, 06:51:38 PM »

quick google search found the thunder tiger part # available on ripmax.com


judging by what it is, i would GUESS that it is a 1.4x prop, ie the pitch is 1.4 times the diameter, which is common for fast electric boats.  in that case any 4mm 40mm 1.4x fiber reinforced plastic prop will work, or for a little more speed, something with identical specs made of bronze would work.   my problem is, being from the land mass i am from, all the sources i know of will be for a propeller with a 3/16" bore, not 4mm.


Yeah the part number is in my reply, I unfortunately couldn't edit the original post though, but thanks for that... I have kept looking but still haven't found the right one.
The 1.4 somehow doesn't look right to me visually, as that's what I found on eBay, but they are all for a bigger bore anyway.
Didn't know finding a prop would be so annoying  {-)
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malcolmfrary

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Re: Changing prop material?
« Reply #4 on: September 13, 2017, 08:31:41 AM »

Best to avoid ebay for anything not totally specific - their search will give all sorts of rubbish.
Looking at one of the other google hits then a bit of site navigating found - http://www.cornwallmodelboats.co.uk/acatalog/propellers_451.html - scrolling down the page found 40mm, M4 bore 2 blade racing props.  No doubt others on the same site with a bit more navigating.
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Ron Rees

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Re: Changing prop material?
« Reply #5 on: September 14, 2017, 09:53:36 AM »

I only use brushless motors now and the best type for what I do is the 'Hydro' style prop....same diameters but bigger pitch. These are quite specific and I now only use www.gliders.uk   They have thousands of suitable props in stock including all the standard sizes...give them a look.


Cheers  Ron
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bfgstew

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Re: Changing prop material?
« Reply #6 on: September 14, 2017, 10:38:16 AM »

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Oh How Original

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Re: Changing prop material?
« Reply #7 on: September 21, 2017, 09:28:40 PM »

Thanks for the replies chaps.
Will check some of those out, I did some more digging but couldn't find a matching one to what I have.
Anything suitable wasn't in stock lol, typical!
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