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Other › Aluminum Main & Tail Blades???
10-09-2005 03:27 AM  12 years agoPost 1
TX-Chopper

rrNovice

Austin, TX

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Hey Guys,

I was thinking about machining a set of main blades and or tail blades out of aluminum, but was wondering if it would be a waste of time. Do you think they would provide any sort of benefit? Would the added weight be a good thing or bad?


Thanks Guys

-Jimmy

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10-09-2005 03:40 AM  12 years agoPost 2
TX-Chopper

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Austin, TX

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Thanks

Thanks, I wont waste my time then.

-Jimmy

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10-09-2005 03:40 AM  12 years agoPost 3
ced0

rrApprentice

Towanda,​Pennsylvania

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A sharp 630 mm piece of aluminum spinning at 180 miles per hour?

I can't think of anything safer!

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10-09-2005 07:22 AM  12 years agoPost 4
DR YEN

rrApprentice

Arcadia, CA

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uhhhhhh.......

You can spend your time to make me an aluminum tail case and some aluminum tail grips would be nice also. Thanks


DR YEN

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10-09-2005 07:32 AM  12 years agoPost 5
Mhw

rrApprentice

earth

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whys it a violation of AMA rules? on our big gas turbine helis weighting 20kg, we use alum blades, that are hollow.

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10-09-2005 12:27 PM  12 years agoPost 6
Mhw

rrApprentice

earth

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Maybe, but if a heli that ways 20 kg, and has a 4m rotor disk hits you, doesnt matter what the blades are made from, your a gonna.

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10-09-2005 02:16 PM  12 years agoPost 7
upperking

rrApprentice

Spring Hill, Florida

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It say metal not Aluminum ?!?!?
Aluminum is softer then metal but it still would be a meat grinder :P

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10-09-2005 04:55 PM  12 years agoPost 8
upperking

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Spring Hill, Florida

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Yes it infact is..

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10-09-2005 06:31 PM  12 years agoPost 9
Ozydego

rrKey Veteran

Westerville, Ohio

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Also, is the AMA global or just an American thang?? I dunno, I know they have international events, but are there AMA fields in Australia??

But Honey, I can't live with just stock.....

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10-09-2005 06:58 PM  12 years agoPost 10
Tmaster

rrKey Veteran

TX

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This whole thread of posts = lmao!!!

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10-10-2005 01:08 AM  12 years agoPost 11
Gary Jenkins

rrElite Veteran

Nowhere, US

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AMA rules say "metal-blade propellers" not "rotor" or "rotor blades".

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10-10-2005 01:34 AM  12 years agoPost 12
ced0

rrApprentice

Towanda,​Pennsylvania

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AMA rules say "metal-blade propellers" not "rotor" or "rotor blades".
A two foot section of aluminum rotating at 180 miles per hour is going to carry as much if not more energy as a metal propeller.

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10-10-2005 01:28 PM  12 years agoPost 13
upperking

rrApprentice

Spring Hill, Florida

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180 miles just think thats as fast as a high end cat 5 hurricane spins!!!

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10-30-2005 03:08 PM  12 years agoPost 14
Helifool

rrVeteran

Rochester New York

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Not everyone uses only wood blades.

What about carbon blades? How are they safer (if any) than hollow aluminum blades. Are carbon blades not sharp? Its not like because a blade is made of aluminum its going to be as sharp as a knife. Lets say you get hit by and aluminum blade or carbon blade that are same weight and shape. Why is the aluminum worse?

I dont use metal blades and dont plan to but I curious why they aluminum blades would are more dangerous than carbon.
"metal-blade propellers" not "rotor" or "rotor blades"
I think the reason they specifly metal-blade propellers because some propellor blades a very thin and literally sharp as a cheap knife, A metal propellor could really harm someone spinning at 15000 rpm. But I guess you could argue that carbon blades are sharp too. Even though a heli blade holds more energy, it still doesn't nessessarly mean it will do more damage. Just think, a prop blade spinning at 15000 rpm will spin 250 times per second so lets just say you hit an object without stopping the blades, you could get hit like 500 times by a blade assuming its a 2 blade prop. Its like a rotory saw. Yes, HELI BLADES ARE DANGEROUS TOO and will often do more damage. Dont get me wrong, I just think with the planes the danger is more of a "slicing" thing so metal blades are a very big no no.


This is just speculations so I dont really know the real reason.

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10-30-2005 03:16 PM  12 years agoPost 15
smity777

rrVeteran

California

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Lets say you get hit by and aluminum blade or carbon blade that are same weight and shape. Why is the aluminum worse?
HUSH! Don't wake up any AMA sleeping dogs here bro

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10-30-2005 03:23 PM  12 years agoPost 16
Helifool

rrVeteran

Rochester New York

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LOL

Okay guys I take it all back, carbons are way safer than metal so its all good.

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10-30-2005 03:36 PM  12 years agoPost 17
smity777

rrVeteran

California

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Hehe

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10-30-2005 04:57 PM  12 years agoPost 18
airbornagain

rrNovice

Melvindale, Mi.

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not only ama rule 7 they would be to heavy for the motor In my opinion it would just be a bad and dangerous idea.

The fly guy Cheyenne

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