vnr3d problems???

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

davo1188 - 28 Feb 2010 03:44 GMT

hi guys, i was wondering if anyone would know how to fix a few problem
i am having with my night ranger 3d

when ever i spool the motor up, and then start adding in the pitch it i
full throttle before my heli gets off the ground, and even then it stil
only stays up for about 2 seconds.

i have tried everything in the troubleshooting and have even bought
new charger.

any comments would be greatly appreciated

cheers dav

--
davo118

Reply to this Message

Steve R. - 01 Mar 2010 04:43 GMT

> hi guys, i was wondering if anyone would know how to fix a few problems
> i am having with my night ranger 3d
[quoted text clipped - 9 lines]
>
> cheers davo

Hi Davo,

A few questions:

1. Is it developing good rotor rpm?
2. Is it holding that rpm or are things slowing down?
3. If it is developing good rpm and holding it, what kind of collective
pitch movement are you getting?

You mention doing some troubleshooting. Is there anything you've absolutely
eliminated as a problem? If it's not holding rpm, that could be anything
from a bad battery, bad motor, or bad ESC. Then again, it could just be a
poor flight control setup. I wasn't exactly sure what the Night Ranger 3D
was so I looked it up. They call it a "ready to fly" model but
unfortunately, that's not always a given.

Any extra info you can provide will help a lot with suggestions!

Good luck & Fly Safe,
Steve R.

Reply to this Message

davo1188 - 13 Mar 2010 10:54 GMT

it does hold good rpm, until the collective starts adding in pitch, onc
it does that it considerably lowers.
i think it is possibly the battery but am not sure as i had to get a ne
charger when i first got it, so not sure???
im no expert so i cant tell you much more steve.

i really appreciate the help,
sa

--
davo118

Reply to this Message

Steve R. - 13 Mar 2010 21:55 GMT

> it does hold good rpm, until the collective starts adding in pitch, once
> it does that it considerably lowers.
[quoted text clipped - 4 lines]
> i really appreciate the help,
> sam

That sounds like it might be electrical in nature. A battery, ESC, or motor
going bad would all produce the symptoms you mention. Something else that
comes to mind is, how is the ESC programmed? Is it set to follow throttle
curves from the transmitter or is it set in governor mode? If it's the
first, then I'd look at the throttle curves in the transmitter. If the
second, then I'd suspect the models electrics.

One things for sure, it shouldn't have any problems at all maintaining rotor
speed while simply lifting off in a hover.

Good luck,
Steve R.

Reply to this Message

Model Forum / Radio Controlled / Helicopters / March 2010

vnr3d problems???