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HelicopterHIROBOOther › air filter for heli engine
06-06-2004 12:30 AM  13 years agoPost 1
cebc7

rrApprentice

Panamá, Rep. de Panamá

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Hello guys:
Sometimes I fly on a dusty field. Would like to know if there is any problem on adapting an rc car engine filter into my os50sxh engine.
Has somebody done this before??

I would appreciate your comments.

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06-06-2004 12:52 AM  13 years agoPost 2
mustang1349

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nash Texas

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never have done it but i had a lot of problems with the engine dying in my rc truck due to a dirty or fuel soaked filter. which is no big deal for a truck but could be real bad for a chopper. ive never really had a problem with dust in a carb it may need a little more cleaning than usual.

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06-06-2004 01:36 AM  13 years agoPost 3
cebc7

rrApprentice

Panamá, Rep. de Panamá

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Thanks Mustang.
I haven't had dust problems too. However would like to avoid them before they happen. As I'm not an expert pilot don't want to have engine problems while flying.
Wonder if the air filter could affect engine performance.

Carlos

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06-06-2004 03:48 AM  13 years agoPost 4
AndyH

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Rockledge, FL

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Century makes some filters, but unless your flying off a reall dusty dirty place you won't need it. In most helicopters you get enough air being blown across the carb opening by the fan to keep any crud from getting in there.

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06-06-2004 01:18 PM  13 years agoPost 5
jerrythercpilot

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--South Florida --

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The other thing too, is that the air makes a 90 deg turn in the cooling shroud. When this happens any particulate and moisture will get slung outward, and the air inboard will be relatively clean. This concept is used a lot in industry and nicknamed Cyclone Separator.

Light travels faster than sound, thats why some people appear so bright UNTIL you hear them speak.

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06-07-2004 11:57 PM  13 years agoPost 6
cebc7

rrApprentice

Panamá, Rep. de Panamá

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Thanks Jerry. However every time I fly on a dusty area I see dust particles in or around the carb. Are you saying it doesn't matter as this will not affect the engine performance??

Carlos

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06-08-2004 04:41 AM  13 years agoPost 7
Joel

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Columbia, MS

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I have used the century filters which I think are pretty good if you want a filter, but you can clearly feel the power loss with the filter.

As far as dirt hurting the engine....I made a hovercraft (sorta) out of a tower .40 which is a cheap plank engine and ran it in dust until it quit from sucking up so much dirt. I took the backplate off and cleaned out about 1/8" of dirt that was sitting in the bottom of the case and a couple gallons later it still runs as good as it ever did on my plane....never ran great to begin with, but its pretty tough. ABC engines might be? tougher than ringed tough so that might have hurt a heli engine and I wouldn't recommend it but I was just amazed that it ran at all after that.

I wouldn't worry about a filter unless you think you might suck up a rock or something bigger than just dust. The power loss is significant and is easily noticed (in my experience anyway). Did you try a landing pad?.....like a piece of old carpet or something.

Joel

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06-08-2004 11:01 PM  13 years agoPost 8
Clearance

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Rain Forest of Western Canada

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I don't believe there's an effective and efficient air filter for our needs. Either the filter is inadequate to remove small particulate matter or it restricts air flow into the carb.

Some suggestions:

a) Use a small carpet/rug to fly off of (don't fly off concrete) or large piece of plywood (plus carpet to reduce resonance when spooling up and down)

b) Wet the area down with a gallon of water

c) move to Canada where it's never dusty :=)

Ken

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06-08-2004 11:04 PM  13 years agoPost 9
Davo

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London, UK

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How about an exhaust-pressure powered centrifugal particle separator? Something like a turbocharger but more for air filtering purposes than power gain.

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06-08-2004 11:33 PM  13 years agoPost 10
cebc7

rrApprentice

Panamá, Rep. de Panamá

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Thanks Joel. Guess I will have to fly as always. I really don't want to affect my engine's performance.
Hello Ken, I prefer to fly in a dusty place rather than a cold place. 25 degrees celsius is the coldest I can stand. Anyway thanks for your proposal. Maybe you should come here. Lots of beaches and sunny days.

Carlos

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06-08-2004 11:38 PM  13 years agoPost 11
cebc7

rrApprentice

Panamá, Rep. de Panamá

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Of course Davo. Don't know why I didn't think that before?????

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06-09-2004 01:23 PM  13 years agoPost 12
iggy

rrNovice

Slovakia, Bratislava

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Webra makes a filter that suits their carbs, I have used this one on a.35 engine

iggy

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06-09-2004 07:31 PM  13 years agoPost 13
Clearance

rrVeteran

Rain Forest of Western Canada

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Carlos,

Thank you for the invitation!!!

Please forward your address.

I'll be down as soon as I can book an airline ticket :=)

Ken

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06-09-2004 08:39 PM  13 years agoPost 14
bald eagle

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detroit michigan

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i have three words pantyhose panty hose and pantyhose it worked at desert storm twice

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06-09-2004 10:56 PM  13 years agoPost 15
Clearance

rrVeteran

Rain Forest of Western Canada

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Addendum:

Dusty conditions cause considerable wearing of the mechanical parts of the heli (ball links, gears, etc.). It's impossible to keep the moving parts free of spent fuel lubricant that attracts dust. So, panty hose the entire heli left over from the war :=)

Ken

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06-09-2004 11:01 PM  13 years agoPost 16
cebc7

rrApprentice

Panamá, Rep. de Panamá

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Thanks iggy. Maybe that could fit into my os 50.


Bald Eagle:
Would the pantyhose melt??.

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06-09-2004 11:04 PM  13 years agoPost 17
cebc7

rrApprentice

Panamá, Rep. de Panamá

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Ken, you are welcome. Address=member info.

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HelicopterHIROBOOther › air filter for heli engine
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