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HomeAircraftHelicopterHelicopter Main Discussion › What not to do with wood blades..
04-04-2009 02:13 AM  9 years agoPost 41
LonR

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Macomb,Mi

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NEVER had a set of woodies come apart on me,over 50 flights with the same set of TT woodies .

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600LE,OS55,OS PowerBoost pipe,Align 610's,Spartan

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04-04-2009 02:18 AM  9 years agoPost 42
fenderstrat

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Aston,Pa

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thats why I said "aggressive flying styles of today".I was refering to hard 3d not hovering and sport flying.

you cant just make a blanket staement like "flying a 50 15 years ago is the same as today",I was not flying then,but I am willing to bet the average headspeed 15 years ago even for a sport flying is well below what is considered a "tame" headspeed today,correct?if I am wrong I am wrong as I was not into the hobby then.I mean 15 years ago,were there even HH gyro yet?

guys are running much more collective pitch,from what i have read 10 or 11 was the norm and now helis are getting 15 deg of collective.running servos that can go from full postive to full neg in hundreths of a second

I am in agreement on the woodies thing,I said i felt it can be done,just do it properly.I just think helis and flying styles have changed pretty dramatically in 15 years,thats all

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04-04-2009 02:48 AM  9 years agoPost 43
chopper_crazy

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Delphos, Ohio

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my problem with my explosion was that I bought the evo 50 used. It had about one gallon of fuel through the airframe (I bought it from a guy here) I had made the assumption that he flew the bird with the wood blades and never thought twice about it. Turns out, he flew it with carbon blades and never touched the wood blades (wish I knew that before) so consequently the blade roots were not epoxied properly like they should be. I definately paid the price (look at gallery) I will never fly woodies again. For sport flying, carbon blades only cost about $25 more. Much cheaper than the $500 I lost on this crash. It was complete destruction.

It's a complex, costly, glow powered anti-gravity machine!

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04-04-2009 02:55 AM  9 years agoPost 44
rudyy

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E. Amherst, NY

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Epoxying the root
Do you all epoxy the root?

I myself never expoxy the root. There are actually 4 screws (3 small one and the big bolt one) that go through the blade root which I think it is very secure. Unless those 3 screws do not exist, then I think the epoxying is necessary.

Rudy

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04-04-2009 03:56 AM  9 years agoPost 45
cudaboy_71

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sacramento, ca, u.s.

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Cuda, sorry but R/C helicopters have been around for much longer than Align has. Thousands of people have thousands of flights on wooden 550's and 600's. IF you assemble, balance, and don't overspeed wooden blades, you can perform aerobatics and mild 3d with zero problems. I don't care what Align says.
you're missing the point. i know composites are relatively new, and helicopters have been around since the beginning of the 20th century. but, Align's 600 flies 1900-2100rpm out of the box. they advise against using woodies because they know you'll be flying outside the envelope on a stock setup unless you detune.

if it ain't broke, break it.

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04-04-2009 04:15 AM  9 years agoPost 46
chopper_crazy

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Delphos, Ohio

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As far epoxing the root, I know when I flew Raptor's, Thunder Tiger always had a sheet of paper they sent out with their blades explaining that you had to take the plastic pieces off and epoxy them.

It's a complex, costly, glow powered anti-gravity machine!

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04-04-2009 04:47 AM  9 years agoPost 47
LonR

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Macomb,Mi

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^^^^ What he said.

600LE,OS55,OS PowerBoost pipe,Align 610's,Spartan

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04-04-2009 05:10 AM  9 years agoPost 48
BJames111

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San Diego, California

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Align's 600 flies 1900-2100rpm out of the box. they advise against using woodies because they know you'll be flying outside the envelope on a stock setup unless you detune.
No, I see your point completely. I just dont think you understand what you're saying. The 600N has a 8.5:1 g/r, EXACTLY the same as the Raptor 50, which has been around much longer. SO, when you say "out of the box" your making a misleading statement. There is no "out of the box" ony what you program in the transmitter. YOU, the pilot (or builder I suppose) must program an appropriate throttle curve for the type of blades you're using, your skill level, and the type of flying you intend to do.
Epoxying the root

Do you all epoxy the root?

I myself never expoxy the root. There are actually 4 screws (3 small one and the big bolt one) that go through the blade root which I think it is very secure. Unless those 3 screws do not exist, then I think the epoxying is necessary.
Then you are simply asking for an accident. Do you warn your fellow fliers that you are ignoring the safety assembly instructions on perhaps the most potentially dangerous part of your model?

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04-04-2009 06:19 AM  9 years agoPost 49
rudyy

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E. Amherst, NY

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I do a search in RR and indeed the majority people glue the root. I would consider myself lucky as I have been flying with woodies for over a year without any glue on. Will JB Weld work?

Rudy

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04-04-2009 06:22 AM  9 years agoPost 50
Cowjock

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Pa.

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YUP! JB weld will work. Any good epoxy will work.

Damn that ground is hard! When's the right time to get out of this money sucking hobby?

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04-04-2009 08:12 AM  9 years agoPost 51
ch-47c

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san jose, ca

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"flying a 50 15 years ago is the same as today",I was not flying then,but I am willing to bet the average headspeed 15 years ago even for a sport flying is well below what is considered a "tame" headspeed today,correct?if I am wrong I am wrong as I was not into the hobby then.I mean 15 years ago,were there even HH gyro yet?
fenderstrat you are right. 25 years ago they said keep it around 1300-1500 rpms. It crepted up to 1700-1800 rpms in the later 80s. It wasn't until composite blades be it fiberglass or carbon fiber did I myself run near 2000 rpms or more. The Schluter Junior 50 was one of the first high headspeed helis. 3D was not like it is today even 10 years ago. A few guys were doing more erratic looking 3D compared to Curtis Youngbloods smooth and large manuevers. I got my first HH gyro a CSM 360 in 1994. It was okay, but it was a lot better than anything that was out then.
I myself never expoxy the root. There are actually 4 screws (3 small one and the big bolt one) that go through the blade root which I think it is very secure. Unless those 3 screws do not exist, then I think the epoxying is necessary.
You should epoxy. On a 30 size you can get away with CA with mild rpms. The reason for epoxing is so the blade doesn't rip away from those screws because of centrifical force. Those screws sometimes go thru balsa and not the hardwood spar. Those 3 screws sometimes crush the wood as well. The blade reinforcement is held more securely with epoxy. There was a blade that had maple reinforcements with no screws and they were epoxy on. I think they were Schluters. JB Wels works. It's metalized epoxy. 5-30 epoxy works great and you don't need that much. It is a pain to unscrew the reinforcemnts and cut the covering under and then epoxy.

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04-04-2009 08:57 AM  9 years agoPost 52
w.pasman

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Netherlands

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I would suggest to just RTFM instead of this ongoing discussion.
Raptor 50v2, page 26. Download from
http://graphics.tudelft.nl/~wouter/...tor/50v2med.pdf

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04-04-2009 09:31 AM  9 years agoPost 53
ch-47c

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san jose, ca

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I don't think anyone wants to read the 42 page manual. It's more fun to talk with your bros.

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HomeAircraftHelicopterHelicopter Main Discussion › What not to do with wood blades..
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