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Blade CP Pro › Maximum SAFE cp pro stock Headspeed ?
02-06-2008 01:49 PM  10 years agoPost 1
DougsRC

rrProfessor

Mass.

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Do any of you CP or CP pro flyers know what the safe maximum headspeed is for the stock plastic head ?? Has anyone ever had a head explode in flight due to high headspeed ??

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02-06-2008 03:46 PM  10 years agoPost 2
tutelar-rc

rrKey Veteran

Nobleton, Ontario - Canada

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I'm running 2600rpm with no problems.

MicroManiac was running around 3000rpm, but as you are aware, he has been complaining about the head coming apart...

Topic is here: [http://runryder.com/t380551p1/]

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02-06-2008 05:03 PM  10 years agoPost 3
DougsRC

rrProfessor

Mass.

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tutelar-rc , Thanks for the thread link, I should have done a search first. I have been out of the Blade CP pro game for quite sometime and recently revisited the CP to see "How much was pilot and set-up" and "How much is the Heli". I don't know the answer to that question but I can tell you its flying better now than a year ago. 2600 seems like a High enough number for the lil guy. Thanks

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02-06-2008 07:04 PM  10 years agoPost 4
Micro-Maniac

rrElite Veteran

Pasco,Washington Formerly: Captain Chaos

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Right I've been running a 3000rpm headspeed with wood blades for a long time now and never had a head part break in flight - Only the sloppy loose linkages pull loose and then a blade just flaps loose instantly killing all the headspeed and power so the heli just falls to the ground right then and there

I'd been cursed with extremely sloppy loose fitting linkages towards the end of last season which would barely even hold under their own weight much less hold during centrifugal force during flight - Finally this last time I freshened my head with all new parts and linkages that seem to be holding - They're still pretty sloppy loose but not falling apart like they have been and I'm back to running 3000rpm with 10T

Kyle Stacy has been running 3200rpm headspeed also with wood blades
Videos: http://www.kylerocks.com/

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02-06-2008 07:16 PM  10 years agoPost 5
DougsRC

rrProfessor

Mass.

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WOW 3000 and 3200 , Good to know. I have had woodies rip out of the blade grips once before on a King 2, pretty scary but it was probably a "freak" or "rare" occurance. As far as the links go, I was thinking about possibly drilling and putting a micro screw and washer in some of the ball links to prevent the link from separating. May sound crazy but it could also be an insurance policy of sorts preventing in-flight separation. I'm sure a CNC head is a better option but still I'm very curious to the mechanical limits of the plastic head.

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02-06-2008 07:25 PM  10 years agoPost 6
MMike

rrElite Veteran

Holland,Mi-USA

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I wonder about the plastic vs. metal balls.

When I flew my Axe, they just came off in a hover sometimes.

I'd buy new links, but they never "popped" on in a secure fit.

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02-06-2008 07:35 PM  10 years agoPost 7
DougsRC

rrProfessor

Mass.

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It seems to me that you should be able to reconstitute the sloppy plastic balls with a very thin layer of CA, with the link removed of course. Then allowing the CA'd ball to dry completely, increasing its thickness ever so slighty, giving you a snug fit once again.

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02-06-2008 07:45 PM  10 years agoPost 8
MMike

rrElite Veteran

Holland,Mi-USA

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I've read in RC-Heli mag about a hair dryer somehow molding the ball and link together, but they said it was only a temporary fix.

To me, the $$ spent on the steel ball assembly is worth it.

I believe they're safer. Yea, that's it.

Tell your wife you HAVE to spend the money cause it's safer!

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02-07-2008 05:07 AM  10 years agoPost 9
dieselracer

rrApprentice

vista CA

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I am running 3500 headspeed on my blade cp pro with carbon blades for a while and its holding up great all plastic head (except for button) stock main shaft, servos ect..

Blade CPP from hell. powered by NEU, T600 12S

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02-07-2008 05:56 AM  10 years agoPost 10
Micro-Maniac

rrElite Veteran

Pasco,Washington Formerly: Captain Chaos

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Curious what motor(kv) and pinion you're using to get 3500rpm

I've used E-flite and Himax 4100kv motors with 10T (largest BCP pinion) to get 3000rpm (calculated & tached)
I get my pinions from the BCP brushed motors as the BCP main gear has a different pitch from other E-flite pinions - I haven't looked for other sources

I don't know where Stacys are getting their 11T pinions from for their 3200rpm

For 3500rpm I imagine you're using a 4100kv with 12T pinion?
Or like 5400kv with 9T pinion?

That looks like a Medusa tail motor though
Nice looking bird

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02-07-2008 12:16 PM  10 years agoPost 11
DougsRC

rrProfessor

Mass.

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Nice Looking Bird Diesel, Its nice to know you guys are successfully running higher headspeeds without to much trouble. I love the "small" size of these guys . I was going to go with a brushless tail which seems to work great but just for the heck of it I put a King 2 boom and belt on it with a HDX 300 plastic pully. I'm very happy with the way it flies now.

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02-08-2008 03:59 AM  10 years agoPost 12
dieselracer

rrApprentice

vista CA

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The motor I am using is the eflite 4100kv with a 10 tooth. The key to getting the maximum headspeed was I run the cc25 in high speed gov mode that gave me about 400rpm more than not running gov mode. Without gov mode it tached at about 3050rpm headspeed. It was tached at center stick 0 pitch. I really like this medusa brushless tail setup nothing I can do makes the tail kick out or anything it holds rock solid doing tic tocs, side tic tocs, fast reverse flight ect Plus when I run a 2200 t-rex battery I can 3d it for 15min.

Blade CPP from hell. powered by NEU, T600 12S

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02-08-2008 12:28 PM  10 years agoPost 13
DougsRC

rrProfessor

Mass.

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dieselracer, Its cool that you have a TREX se yet you still love flying the lil "Blade". Do the Heli-max Axe-CP paddles make a big difference over the stock paddles in cyclic response ??

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02-08-2008 04:00 PM  10 years agoPost 14
dieselracer

rrApprentice

vista CA

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The axe-cp paddles make a huge difference on both the blade cp and the t-rex 450 I highly recommend putting a set on your heli.

Blade CPP from hell. powered by NEU, T600 12S

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