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Mikado Modellhubschrauber . GrandRC . CanoMod

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e-E-Flite Blade CP CX 400-3D > Collective
 
 
littleflight
Heliman
Location: Pullman, WA USA

I just bought a BCP. I have flown it a couple of times. It seems like the colelctive is not moving enough. In normal mode the collective only changes the pitch a couple of degrees. It is always postive pitch even when collective/throttle is all the way down. The servos travel fine with the cyclic but even that seems a little unresponsive. Its kinda slow. It stunt mode I have absoultely no negative pitch although it does change from postive to negative. What is wrong? Can't figure it out.

Thankyou in advance,

LF
08-01-2005 Over year old.
 
 
Hoverup
Elite Veteran
Location: Gulf Coast

http://runryder.com/helicopter/t184463p1/

Cheers - Boyd
AMA80393
Major USAF
Retired
08-01-2005 Over year old.
 
 
littleflight
Heliman
Location: Pullman, WA USA

Okay i read through this link posted. thank you for the information but i don't think that is my problem. I have unplugged my main motor and tail motor and watched the collective. it still doesn't move any more than it does with motors. could someone may post a set of pictures with the collective at the lowest point and highest point so I may compare them to mine. Maybe I am just imaging things. but I think something is wrong. thanks in advance. also I am having tail issues. I my tail seems to drift. i have tried to adjust the gyro gain and proportional mixing on the 4in1 but it doesn't seem to hold very well. what will happen if i turn the gyro gain to the lowest point. also my cyclic seems very slugish. it also drifts. I know helis require constant correction and maybe i just need to get better butit took every bit of cyclic earlier today to correct the heli to level and even then it went very slow. so any pointers tips anything would help. thanks again guys,

LF
08-01-2005 Over year old.
 
 
littleflight
Heliman
Location: Pullman, WA USA

oh one more thing

oh and one more thing. my main shaft is bent. could this be cuasing me problems with the gyro virbrating and such. it is vibrating quite a bit. I know I need to get a new one and I will have one on order but how much does a bent main shaft affect flight performance. also it there an upgraded gear from the plastic to a metal one.

Thanks,

LF
08-01-2005 Over year old.
 
 
tienman04
Senior Heliman
Location: Silver sping. MD

I think you might have to fix your linkage that connects to your blade grips.

The vibration can be fixed by tracking the blade and making sure that your blades are balance. To balance them, just place them side by side on the thin side of a ruler and add tape to one blade to even out the CG(center of gravity). Tracking the blades are also important. I think the manual shows direction as well as pictures to show you how to do this.

Your problem with the negative picth might be the linkage issue. You can also adjust the linkage on your servo to move the swashplate up more or down more.

TO make your heli more responsive, move the flybar weights in. I have mine about half way in the flybar and its a world of difference. You can move it all the way in if you want to.

I dont think they make metal gears. The pinion are already metal so if the gear is also metal then when you crash...its just going to break everything. Something has to give in a crash. Either the pinion or the gear.
hope this helps
08-01-2005 Over year old.
 
 
banjo
Heliman
Location: New England

Have you done the collective fix as Boyd posted? If you haven't then you are wasting your time. Without the fix the collective will not move fully or smoothly.
08-01-2005 Over year old.
 
 
littleflight
Heliman
Location: Pullman, WA USA

okay maybe i dont' understand the fix. the problem is the swash plate is binding on the main shaft correct? with the linkage off i can move the swash plate and there is no binding or sticky spots whatsoever. i don't have the problem of the heli jumping in to the air. the collective is smooth it just seems like it is not moving enough. Again there may not be a problem and that is why i would like someone with the bcp to take a picture with the collective all the way down and then a second one all the way up. So i may compare with mine. thanks again. I already ajusted linkages and that made no difference in collective movement. still very small.

LF
08-01-2005 Over year old.
 
 
banjo
Heliman
Location: New England

<>
No, the blade grips are binding on the spindle. The swash plate moves just fine but the blades are bound up and don't move as they should.
The collective fix has corrected issues from "Won't fly" to "Seems Sluggish".
08-02-2005 Over year old.
 
 
littleflight
Heliman
Location: Pullman, WA USA

okay i will try to apply the fix thanks guys I let you how it goes

LF
08-03-2005 Over year old.
 
 
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Futaba-RC . A Main Hobbies . Boca Bearings

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e-E-Flite Blade CP CX 400-3D > Collective
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