RE: E-FLIGHT BLADE CP

RE: E-FLIGHT BLADE CP
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All Forums >> RC Helicopters >> Electric RC Helis >> E-Flite Helicopters >> RE: E-FLIGHT BLADE CP

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RE: E-FLIGHT BLADE CP - 9/4/2007 5:50:21 AM

crashcrash

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Joined: 11/23/2006
From: St Louis, MI, USA
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quote:

ORIGINAL: fiveoboy01

Did the fix for the sticking collective. No difference, and I suspected that it wouldn't make a difference.

Maybe I did not explain it right but the heli is jumping around without ANY stick input. Also I now do notice the tail rotor goes berserk when the collective starts jumping up and down.

It seems to only do it at high head speed(I fly in idle up mode), if I give full negative collective it stops twitching around but as I bring it back to zero pitch it starts jumping again.

This is an electronic problem having nothing to do with the sticking collective, though I'm glad I went ahead and did the mod anyways.

Anyone have any ideas? Tx batteries are brand new, I changed them just in case.

The mainshaft also looked like there was a slight wobble at the very top of the rotor head so I removed it to check. Straight as a string.

Sounds like maybe a stripped servo or two....start there. If you've had a couple hard landings....those S-75's cant take much abuse and they're junk. CAREFULLY....unhook each servo (power off) from the swash and cycle the servo arm gently by hand full stroke each way. If you feel ratcheting....it's junk.

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what?

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Post #: 4751

RE: E-FLIGHT BLADE CP - 9/4/2007 7:50:17 AM

mrasmm

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From: Sometown, Northern Utah, USA
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honestly if it isn't messing with your cyclic, and only the collective, chances are it's not electronic or glitching. For it to be electronic they would all have to be glitching, and all at the exact same time and in the same direction at the same speed. Something that given the nature of electronics is not very likely at all.

One other thing to check if you are sure there is no binding in the head, check out the mainshaft collar and make sure that it is well seated and the main shaft doesn't go up and down. ALso check the screws on the mixer arms and make sure that they are not too tight. when you flick your flybar it should bounce up and down 2 or 3 times if it's got a nice loose motion.

About the cp+ vs the pro, it might not have a seperate recever and 3 in 1, and the other thing might be the transmitter. The pro Tx has a pitch curve knob on it and also a ch5 rotary knob.

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RE: E-FLIGHT BLADE CP - 9/4/2007 8:09:49 AM

fiveoboy01

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From: Waunakee, WI, USA
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I hate to argue, but I guarantee this is an electronic issue and not a mechanical one.

I can hold the heli, flip it to idle up mode, and it starts bouncing up and down rapidly in my hand. The servos are working themselves. I can tell what an electronic glitch is and this is one.

I might just hit the LHS tomorrow and get a Spektrum Rx and set it up with my DX7.

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Post #: 4753

RE: E-FLIGHT BLADE CP - 9/4/2007 8:15:16 AM

mrasmm

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alrighty, well whatever works. You are the one that is there watching the heli do it's thing =) GL finding out whatever the problem is

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RE: E-FLIGHT BLADE CP - 9/4/2007 8:28:07 AM

fiveoboy01

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From: Waunakee, WI, USA
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Didn't mean to come across the wrong way. I'm simply irritable.

As an idea I took the heatsink off the main motor thinking it might be rubbing and causing some metal-to-metal deal.

NOW the heli won't even lift off. I've got way more negative than positive collective pitch.

I don't get it, I never touched the radio or turned it on through the whole dis-assembly and assembly process. I checked e-flites website fof a picture of the head and everything is together correctly.

Sigh.

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RE: E-FLIGHT BLADE CP - 9/4/2007 3:38:27 PM

FMB42

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Joined: 10/13/2006
From: , CA, USA
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quote:

NOW the heli won't even lift off. I've got way more negative than positive collective pitch.

Double check the expanded view in the manual just in case something is out of place or reversed. Might even be that you have the swashplate ball links installed on the 90 deg balls rather then the 120 deg balls. I'm not sure if this is possible but thought that I'd mention it anyway.

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Post #: 4756

RE: E-FLIGHT BLADE CP - 9/4/2007 3:58:28 PM

fiveoboy01

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Thanks, I looked at it like 10 times and everything appeared to be in the right spot, compared to the diagram and pictures.

In any case, it's on it's way to Horizon. The tech I spoke with said it sounds like a Tx/Rx issue. He said it will likely be warranty work.

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Post #: 4757

RE: E-FLIGHT BLADE CP - 9/4/2007 10:47:58 PM

fiveoboy01

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Anyone know if there's a set-up sheet floating around anywhere for the BCCP with a DX7?

I'm thinking after I get it back I might just spring for an AR6100 and set it up with a better radio.

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Post #: 4758

RE: E-FLIGHT BLADE CP - 11/16/2007 10:10:44 AM

BillSchmarr

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Joined: 10/2/2007
From: Lawrenceburg, IN, USA
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Weight question on the Blade CP Pro - I'm running a brushless motor set-up with dual tail motors and was thinking of buying the CNC Precision Aluminium Main Frame (Part # MH-DP001SE) from HeliHobby and using a titanium tail boom from Super-Skids along with their Super-Skids landing gear. I have the original plastic rotor head. Does anyone know if this will be too much weight for the Blade CP Pro? I had a boom blade strike last night that busted my boom and the back end of the plastic frame separated. I've wanted to try the aluminum frame and was thinking this would be my chance, but was just wondering about the weight.

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RE: E-FLIGHT BLADE CP - 11/16/2007 2:55:57 PM

GTX SlotCar

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The frame is kind of heavy and I don't think SuperSkids will fit it. If you're doing 3D flying or just very concerned about weight, the SuperSkids3D and SuperBoom and stock frame would work.

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Post #: 4760

RE: E-FLIGHT BLADE CP - 11/19/2007 3:51:21 AM

mrasmm

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yeah, it definatley depends on what kind of flying you want to do. If you want to do more scale flying, with a 4100kv motor, I've seen them up to about 460g or so, which is about 160g over stock =)

I think it would work just fine, you just wont be able to fly anything too crazy, especially anything 3d

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RE: E-FLIGHT BLADE CP - 11/23/2007 8:54:52 PM

rumotech

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Keep this Cp thread going

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RE: E-FLIGHT BLADE CP - 12/4/2007 4:24:07 AM

SiliconDragon

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Joined: 12/4/2007
From: Edmonds, WA, USA
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Howdy all, glad to see all the great discussions on my newly chosen hobby.

That said, does anyone have any opinions for a comparison between a CP+ and a CP Pro?

With a lot of patience and sim training, I'm considering either of these for my starter heli. Yes, I expect to crash even though I'm a cautious, patient, yet quick learner. However, I expect my patience will pay off because I know I'll become quickly bored with a beginner heli (e.g. fixed pitch). I've already decided on E-Flite because of their reputation, the many articles I've read, and forum postings here. I'm drawn to the CP+ but am considering the CP Pro, but I'd rather err on the side of caution and it "seems" that the CP+ might be the better option for now.

Comments? Suggestions?

PS Suggestions on a quality--and hopefully inexpensive--trainer app would be welcome as well, especially if it'll help with a CP model.

Regards, SD