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HomeAircraftHelicopterHelicopter Main Discussion › Air filter for OS 50 SX-H engine
10-21-2013 10:34 AM  5 years agoPost 1
Vaderluck

rrApprentice

Melbourne - Australia

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Do I need to use air filter for OS 50 engine ?
Don't seem they are available on the market.
Can I use a piece of foam and soak a bit oil as filter ?

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10-21-2013 10:52 AM  5 years agoPost 2
MXRACERX43

rrApprentice

Hazleton,PA USA

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The vast majority of nitro helis and engines do not use an air filter. One manufacturer comes to mind that sold one as an upgrade. Since a helicopter spends most of its running time airborne a filter is not needed.

Team Miniature Aircraft~Team GensAce

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10-21-2013 01:09 PM  5 years agoPost 3
datidun

rrElite Veteran

N Ireland

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The only heli i know had a filter was the Pantera 50.

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10-21-2013 01:22 PM  5 years agoPost 4
dkshema

rrMaster

Cedar Rapids, IA

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If you want to use a filter, make one. A couple of layers of nylon stocking stretched over the venturi opening, tied with some sewing thread with a dab of super glue on the knot...

-----
Dave

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

Team Heliproz

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10-21-2013 01:38 PM  5 years agoPost 5
Four Stroker

rrElite Veteran

Atlanta

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Ron Lund sells a perfectly good air filter that won't get sucked into you engine: http://www.ronlund.com/rcheli-prod/CN2214C.html

I have used them for years. You can shorten the silicone rubber part as needed. It is a standard Tetra part probably available locally.

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10-21-2013 02:42 PM  5 years agoPost 6
fla heli boy

rrElite Veteran

cape coral, florida

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If you want to use a filter, make one. A couple of layers of nylon stocking stretched over the venturi opening, tied with some sewing thread with a dab of super glue on the knot...
That's what I used to do back in the day. Except I used a rubber o-ring to retain the nylon.....with a dab of ca to keep it from moving.

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