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Cman · 09-06-2010, 01:42 PM

Good Day,

I rencently had a big crash, it broke the feather shaft and a blade grip. so i replaced these parts and now have the metal upgrade head. After this it appeared that at fullpower the motorwould slow down, almsot like I have too much pitch set, i put the transmitter settings back to factory, it does the same thing, i replaced the motor and no effect, the batteries work fine in my 4#3B. any suggestions? I'm thinking about putting the plastic head back I have read on here its better then the metal one

C

all-thumbs · 09-06-2010, 07:08 PM

Hmm, this could be difficult to troubleshoot. I am one of those who believe that the plastic head blocks are better than the CNC ones. The CNC ones bend too easily in a crash. But swapping the CNC head for the plastic one wouldn't account for your symptoms.

Perhaps your main shaft is bent (although it would likely wobble a lot).

Jskrapper · 09-06-2010, 07:15 PM

How old or how many flights on your ESC?

all-thumbs · 09-06-2010, 07:23 PM

The other question is whether he has the brushless motor. Mine is a Novus CP which came with that crappy brushed motor. After I got the brushless upgrade, the difference was night and day.

Cman · 09-06-2010, 07:26 PM

its a new main shaft

maybe 40 flights on the ESC?

if I hold it in my hand and add some left stick it seems to respond normally untili get about 80% full then it slows down.

this might be a better discription of what the problem is. it almost seems like the pitch is set to high and is loading up the motor, but the adjustment is turned almost all the way in.

all-thumbs · 09-06-2010, 07:58 PM

Which transmitter are you using? Were you careful to ensure that there was a bit of "lash" between the motor pinion gear and the main gear?

Dusty1000 · 09-07-2010, 09:45 AM

Is there enough power to lift off the ground?

I set the pitch range on my 4G3 depending on how the tail holds when I fly it.

To get 0 degrees at mid-stick and to ensure equal positive and negative pitch, I hold it in my hand, power up, switch into idle up, and ensure the blades go at their fastest speed when the collective is at mid-stick. Adjust linkages if they do not. Then I apply full positive then full negative pitch, and again going by the sound of the blades, check they slow down equally at either ends of the collective. It's not exactly the Finless way, but it works well enough for setting up a 4G3

Dusty

Cman · 09-07-2010, 07:47 PM

I am using the stock helimax transmitter,

Yes it does lift off the ground,

Dusty, I will attempt that as soon as I get a chance, and see what happens

Thanks guys

09-06-2010, 01:42 PM	#1 (permalink)
Cman Registered Users Join Date: Dec 2009	Novus. 4G3 problem Good Day, I rencently had a big crash, it broke the feather shaft and a blade grip. so i replaced these parts and now have the metal upgrade head. After this it appeared that at fullpower the motorwould slow down, almsot like I have too much pitch set, i put the transmitter settings back to factory, it does the same thing, i replaced the motor and no effect, the batteries work fine in my 4#3B. any suggestions? I'm thinking about putting the plastic head back I have read on here its better then the metal one C

09-06-2010, 07:15 PM	#3 (permalink)
Jskrapper Registered Users My HF Map location Join Date: Nov 2009	How old or how many flights on your ESC? __________________ -Joe "Helis - wallet weight reduction made easy" HeliArt Jskrapper @ youtube

09-07-2010, 09:45 AM	#7 (permalink)
Dusty1000 Registered Users Join Date: Sep 2008	Is there enough power to lift off the ground? I set the pitch range on my 4G3 depending on how the tail holds when I fly it. To get 0 degrees at mid-stick and to ensure equal positive and negative pitch, I hold it in my hand, power up, switch into idle up, and ensure the blades go at their fastest speed when the collective is at mid-stick. Adjust linkages if they do not. Then I apply full positive then full negative pitch, and again going by the sound of the blades, check they slow down equally at either ends of the collective. It's not exactly the Finless way, but it works well enough for setting up a 4G3 Dusty __________________ Blade 400, mSR, mCPX - Sonix SX450SE - Walkera 1#A, 4#3, 4#3A, 4#3B, 4G3

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09-06-2010, 07:08 PM	#2 (permalink)
all-thumbs Registered Users Join Date: Jan 2010	Hmm, this could be difficult to troubleshoot. I am one of those who believe that the plastic head blocks are better than the CNC ones. The CNC ones bend too easily in a crash. But swapping the CNC head for the plastic one wouldn't account for your symptoms. Perhaps your main shaft is bent (although it would likely wobble a lot).

09-06-2010, 07:23 PM	#4 (permalink)
all-thumbs Registered Users Join Date: Jan 2010	The other question is whether he has the brushless motor. Mine is a Novus CP which came with that crappy brushed motor. After I got the brushless upgrade, the difference was night and day.

09-06-2010, 07:26 PM	#5 (permalink)
Cman Registered Users Thread Starter Join Date: Dec 2009	its a new main shaft maybe 40 flights on the ESC? if I hold it in my hand and add some left stick it seems to respond normally untili get about 80% full then it slows down. this might be a better discription of what the problem is. it almost seems like the pitch is set to high and is loading up the motor, but the adjustment is turned almost all the way in.

09-06-2010, 07:58 PM	#6 (permalink)
all-thumbs Registered Users Join Date: Jan 2010	Which transmitter are you using? Were you careful to ensure that there was a bit of "lash" between the motor pinion gear and the main gear?

09-07-2010, 07:47 PM	#8 (permalink)
Cman Registered Users Thread Starter Join Date: Dec 2009	I am using the stock helimax transmitter, Yes it does lift off the ground, Dusty, I will attempt that as soon as I get a chance, and see what happens Thanks guys

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