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HomeAircraftHelicopterHelicopter Main Discussion › BLADE QUESTION
07-31-2013 06:17 PM  5 years agoPost 1

rrKey Veteran

west seattle

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have some 550 blades that's been sitting around, their good but the bolt holes are bigger than the bolts that need to go in.
will the plastic blade grips where the bolt goes in be ok to hold the blades or do I need to put some metal tubing so the bolt will fit snug?

CAUTION!!! politicians may be hazerdous to your well being

07-31-2013 06:32 PM  5 years agoPost 2


Brewerton, New York

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Get the metal inserts.

Bill Whittaker

07-31-2013 08:04 PM  5 years agoPost 3


Jasper, Indiana USA

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07-31-2013 08:51 PM  5 years agoPost 4

rrKey Veteran

South Korea

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You have a couple of options here. Either get a bolt and grip set that matches your blade bolt holes....or get some eyelets or inserts so the current bolts will work with no play. But, do not drill into your grips or blades to widen them.

Also, most blades come with one or more extra sets of shims and bolt hole spacers to accomodate the most common head setups. If you bought them new and still have the orginal box the blades came in, the extra hardware might still be there. It's usually stashed away in a folding pocket flap on the box.

Your plastic grips should work fine for sport flight and casual...but if you plan on banging heavy 3d or running super high headspeeds, I'd stay away from using them...


08-01-2013 02:43 PM  5 years agoPost 5


Cedar Rapids, IA

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If you have a local hobby shop, find their K&S display and take a look at the brass tubing. You should be able to find a tube whose ID fits the bolt and whose OD fits the hole in the blade. Make your own reducers using that tube and install.

I had to do this a few years ago to fit a pinion onto a motor shaft.


* Making the World Better -- One Helicopter at a time! *

Team Heliproz

08-01-2013 03:08 PM  5 years agoPost 6
Jay Cotty


Maryland USA

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There you go, it can't get better than that...agreed!

Fly it like you stold it! AMA #17239

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