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| 450 Class Electric Helicopters 450 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar. |
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#1 |
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Registered Users
Join Date: Jun 2007
Location: norway
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I want to use them safely. Not risky. Any know how many rpm i can do it safely?
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Just started to fly heli, why didnt i start this earlier. Damn fun. |
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#2 |
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Registered Users
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I've always heard 2800 but i'd do like 2500 just to be safe.
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#3 |
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Registered Users
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2800 according to the manufacturer.
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#4 |
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Registered Users
Join Date: Jun 2008
Location: Trondheim Norway
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The limit fore them are 2800rpm
Some people run them over 3K and someone people have seen them disintegrate in the air so to be safe dont run them over 3000rpm. I run mine at 2950 rpm.
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CopTreX 450 SE V2, Pro..... real bastard. Logo 500 3D FB Blade mCPX |
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#5 |
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Registered Users
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i run mine at 3000 set rpm mode for about 100 flights now. still no problems or warping taking place. i dont fly 3d(as hfg said) but do quiet alot of stuff like tic-tocs, chaos and everything you learn before that on woodies and its fine. ive ran at 3100 rpm for about 10 secs but i rly do not feal safe at that speed.
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#6 |
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Registered Users
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I have run them at 3200 rpm for hundreds of flights with no problems. I have seen other brands of woods blow apart but never the pro woods.
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T-Rex 600 Nitro Super Pro T-Rex 450 SE V2 on 4s PZ 27C Stryker (yea, it's a plank) |
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#7 |
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Registered Users
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If you are just hovering then the pro wood is ok for 2800 according to manufacturer...and many do run them faster...
But if you are doing hard stuff then you are probably good enough to not crash and thus using carbon fibers. I'm using the pro wood at a governed 3000...doing flips and rolls....nothing too hard and haven't had a problem...but it is only because I couldn't get the 3k carbon fibers and just needed to get in the air!
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Trex 450 Pro 3xDS410M + MKS8910A+, Align FBL head w/Microbeast, CC 45 Gov@ 3400rpm(max timing, outrunner mode), Scorpion 2221-8 on 14t, Edge FBL main and tail, CF boom, CC BEC @ 6V |
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#8 | |
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Registered Users
Join Date: Sep 2007
Location: Fishers, Indiana USA
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Quote:
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Blade CX/2, Axe CP, T-Rex 450 SA(SE V2 now) , T-Rex 600nitro Pro, Blade mCX, T-Rex 500 GF, T-Rex 450 SE night rig with ZeroGear and FlexPro lighting, Walkera 4G3, scale 450 Hughes 500D, Hirobo SDX HPM, Blade mSR, DX7 |
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#9 |
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Registered Users
Join Date: Sep 2006
Location: Maryland
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Manufacturer says 2800 RPM. Anything above taht, you are on your own.
And think about if it sheds a blade and harms someone, what will teh court case look like? Well, "I know they are rated to only 28000 RPM, but a bunch of guys online said they are fine at higher speeds, so they must know better than the manufacturer." Yeap, you will win that one.
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Terry AMA#47402, IRCHA # 3395 Blade CP "Pro", Trex 450SE, PiccoZ, Quick of Japan EP8v2 EX, Hurricane 550, Hurricane 200, JR Vibe 50, Blade mCX, Bergen Intrepid Gasser, Pantera 50, Blade mSR, Novus CP |
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#10 |
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Registered Users
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Not sure about Norway...but in America getting sued is a favorite past time. Perhaps a major contributor to the specs on the heli blade? Not to say one should ignore the specs...I want everyone to be safe...the pilots and the spectators. An almost contradictory statement seeing the overall hobby of heli 3d flying!
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Trex 450 Pro 3xDS410M + MKS8910A+, Align FBL head w/Microbeast, CC 45 Gov@ 3400rpm(max timing, outrunner mode), Scorpion 2221-8 on 14t, Edge FBL main and tail, CF boom, CC BEC @ 6V |
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#11 |
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Registered Users
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#12 |
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Registered Users
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so when doing your initual setup you have to cater for the headspead?? standard out the box build could destroy the blades... just asking cause i will be completing my 1st heli build soon *TREX 450 SE V1*
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"C'est en faisant n'importe quoi qu'on devient n'importe qui" |
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#13 |
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Registered Users
Join Date: Dec 2006
Location: Palo Cedro CA
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Pinecone? are you a frickin cop or what? Mr Know it All here? I am sure all lawyers now all about heli headspeeds and gearing to make that stick.
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#14 |
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Registered Users
Join Date: Sep 2006
Location: Maryland
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Maybe they don't, but if you get sued they WILL find people who do know.
And yes, in the US suing is a favorite pastime, so you can either prepare for it, or deal with the consequences. Your choice.
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Terry AMA#47402, IRCHA # 3395 Blade CP "Pro", Trex 450SE, PiccoZ, Quick of Japan EP8v2 EX, Hurricane 550, Hurricane 200, JR Vibe 50, Blade mCX, Bergen Intrepid Gasser, Pantera 50, Blade mSR, Novus CP |
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#15 |
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Registered Users
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Out of curiousity what is the max headspeed for carbon fiber main and since we are on the subject a carbon fiber tail?
I would think with carbon fiber you need to worry more about the feathering shaft bolts giving way. But I don't have anything to go by...anyone have any numbers?
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Trex 450 Pro 3xDS410M + MKS8910A+, Align FBL head w/Microbeast, CC 45 Gov@ 3400rpm(max timing, outrunner mode), Scorpion 2221-8 on 14t, Edge FBL main and tail, CF boom, CC BEC @ 6V |
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Unregistered
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| 450 Class Electric Helicopters 450 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar. |
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