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Jun 18, 2019, 10:53 AM
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Guess what?






Will open a thread for it!
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Jun 19, 2019, 03:58 AM
120sr/200srx/230s/300cfx/200qx
targetingxmod's Avatar
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Some more photos...
Jun 19, 2019, 03:58 AM
120sr/200srx/230s/300cfx/200qx
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Jun 19, 2019, 03:59 AM
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Last edited by targetingxmod; Jun 25, 2019 at 04:13 PM.
Jun 25, 2019, 02:26 PM
120sr/200srx/230s/300cfx/200qx
targetingxmod's Avatar
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For future reference....stock 3 blade prop has 28mm diameter!

Jun 25, 2019, 02:28 PM
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targetingxmod's Avatar
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Another run, another video...
ProBoat Recoil 17" on Graphene steroid's run 19-06-2019 (4 min 34 sec)
Jun 25, 2019, 03:17 PM
Registered User
Quote:
Originally Posted by targetingxmod
For future reference....stock 3 blade prop has 28mm diameter!

That's not the way to measure a 3 blade prop, it will measure under size to what the props diameter is. You need to measure from the center of the bore & straight along the back edge of 1 of the blades to the extreme tip of the blade to get the radius then x 2 to give the actual diameter. As an example i have just measured a true 37mm 3 blade prop the way you are measuring your prop in the picture & it came out at 34 mm.
Last edited by martinh50; Jun 25, 2019 at 03:29 PM.
Jun 25, 2019, 08:51 PM
Just Plane Nutts
AirDOGGe's Avatar

Measuring a prop with an odd number blade count


Quote:
Originally Posted by martinh50
That's not the way to measure a 3 blade prop, it will measure under size to what the props diameter is. You need to measure from the center of the bore & straight along the back edge of 1 of the blades to the extreme tip of the blade to get the radius then x 2 to give the actual diameter. As an example i have just measured a true 37mm 3 blade prop the way you are measuring your prop in the picture & it came out at 34 mm.

Maybe this will help to visualize the measuring error:





Last edited by AirDOGGe; Jun 25, 2019 at 09:24 PM.
Jun 26, 2019, 12:32 PM
120sr/200srx/230s/300cfx/200qx
targetingxmod's Avatar
Thread OP
Allright, crystal clear! Thanks!


-So for future reference the stock 3 blade plastic prop got:

30mm diameter
1.4 pitch
3.18mm bore (1/8-inch or .125")
Last edited by targetingxmod; Jun 27, 2019 at 06:13 PM.
Jul 13, 2019, 12:50 PM
120sr/200srx/230s/300cfx/200qx
targetingxmod's Avatar
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ProBoat Recoil 17" on Graphene steroid's run # 2 @ 19-06-2019 (5 min 7 sec)
Jul 13, 2019, 05:15 PM
Registered User
Quote:
Originally Posted by targetingxmod
Allright, crystal clear! Thanks!


-So for future reference the stock 3 blade plastic prop got:

30mm diameter
1.4 pitch
3.18mm bore (1/8-inch or .125")
15.86 x 2 = 31.72 - 32 mm
Jul 13, 2019, 11:32 PM
Just Plane Nutts
AirDOGGe's Avatar
I believe they are 30mm.

I do not think he had the left tip of the caliper on dead center of the shaft, hence the small eight-tenths of a millimeter error.......... 15.86mm was probably closer to 15.00mm
Jul 14, 2019, 02:13 AM
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Alfa Twin Spar's Avatar
Perfect for my bathroom

Jul 14, 2019, 07:19 AM
Registered User
Quote:
Originally Posted by AirDOGGe
I believe they are 30mm.

I do not think he had the left tip of the caliper on dead center of the shaft, hence the small eight-tenths of a millimeter error.......... 15.86mm was probably closer to 15.00mm
Roger.....
Jul 14, 2019, 07:20 AM
Registered User
Quote:
Originally Posted by Alfa Twin Spar
Perfect for my bathroom

"Perfect" is all I read lol


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