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-   -   Blade CX-After light crash batts last less than 1 minute (http://www.rcuniverse.com/forum/rc-helicopter-beginners-forum-165/9617917-blade-cx-after-light-crash-batts-last-less-than-1-minute.html)

mallamo 03-28-2010 07:53 AM

Blade CX-After light crash batts last less than 1 minute
A few weeks ago I got my original Blade CX out. After a few adjustments it was flying great and has been ever since. I bought 2 brand new batteries this past week and have been getting 8-10 minutes of indoor flight time per charge.

So yesterday I was flying and had a light crash. Nothing broke, the retaining collar under the swashplate came loose so I disassembled the unit and then reassembled. Now when I fly the batteries last less than a minute (more like 20 seconds), and I have to really give it a lot of power to just get off the floor. I have made certain that there is a slight amount of play under that retaining collar below the swashplate as I recall that causing low flight times in the past (if there was no play).

I'm guessing it's the 4 in 1 control unit? It is the original 4 in 1 that came with the heli when I bought it 4 years ago so I'm ok with buying a new one but just wanted to make sure that was what is causing the issue.

Any advice will be appreciated.



Mack66 03-28-2010 05:45 PM

RE: Blade CX-After light crash batts last less than 1 minute
Sounds like too much friction in the drive train. If it were motor failure you'd have trouble keeping in in trim. Could your gears be too close together? Should be about a paper's thickness gap between them.

I suppose you might have killed the 4-in-1. I'd give tech support a call and have them weigh in on this. They can then immediately deal with whatever parts requirements you may have.


mydartswinger 04-03-2010 10:49 AM

RE: Blade CX-After light crash batts last less than 1 minute
Like Mack said, check your drivetrain to ensure that it spins freely. If that's not the case, look for binding in the rotor system and binding and chattering servos. If none of that is the case, you could have bad motors. If your pack was over discharged during your longer flights, it could've been damaged and you'll need a new pack.

If the battery is the problem, fly one pack on a timer to see how long you can fly before you start losing lift, needing more throttle to keep it in the air. At this point land and stop the timer. Subtract about 30 seconds to a minute from the time. Do not fly longer than that in subsequent flights to prevent overdischarging the pack and damaging it.

If none of the above is the case, you may have a messed up 5-in-1 unit.

Hope this helps.

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