How to trim length from prop?

Lowell
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How to trim length from prop?

Postby Lowell » February 18th, 2010, 5:26 pm

I have an Ikara prop I need to take about 3/4" or so off of to make it legal. I don't have any specialized equipment to do this so I am asking for ideas. Any suggestions please?

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blue cobra
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Re: How to trim length from prop?

Postby blue cobra » February 18th, 2010, 5:35 pm

This really belongs in the Propellers thread.

But anyway just use a ruler to find where to cut and you can use regular scissors, or a razor if you are so inclined, to make the cut.
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Greg Doe
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Re: How to trim length from prop?

Postby Greg Doe » February 19th, 2010, 8:58 pm

Lowell,
First make a pattern of one blade on a piece of poster board, or any similar material. Measure
in 3/8" (1/2 the of the 3/4" you need to remove) from the tip, and cut that amount off of your
pattern. Slightely radius the corners of the pattern. Now use your pattern template to draw a "trim" line on your prop. Before cutting the prop to length, measure the distance between the cut lines.
If everything checks out ok, cut the prop. Hope this is clear. Good luck.
Greg Doe
Smyrna,TN

jcollier
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Re: How to trim length from prop?

Postby jcollier » March 2nd, 2010, 7:34 am

You can make a pattern, or measure from the prop axle 10 cm on each blade, but be sure you measure the entire assembly to be sure it is under 20 cm. My son shortened the prop that came with the Leading Edge kit, and when I measured it for him, it was too close (right at exactly 20), so depending on the event supervisor, it could possibly been DQ'd. Also, if you want it to spin smoothly without wobble, make sure it is balanced and does not have a blade that is heavy and one that is light.


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