Wattflyer RC Network: RC Universe :: RCU Magazine :: RCU Forums :: RCU Classifieds :: RCU User Reviews :: RCU YouTube
Home Who's Online Calendar Today's Posts RealTime Post Spy Mark Forums Read
Go Back   WattFlyer RC Electric Flight Forums - Discuss radio control eflight > Electric R/C Airplanes > Indoor & Micro Electric Planes
Register Members List Wattflyer Extras Articles Search Today's Posts Mark Forums Read Social Groups

Indoor & Micro Electric Planes Talk about indoor & Micro electric powered flight here

Thank you for your support (hide ads)
Reply
 
Thread Tools Display Modes
Old 07-22-2014, 10:02 PM   #1
smallflyer
New Member
 
Join Date: Jul 2014
Posts: 1
Thanked 0 Times in 0 Posts
iTrader: (0)
Friends: (0)
Default flyzone p51 mustang esc problem?

Yesterday I brought out my flyzone micro p51 mustang for the first time this year but wasn't able to get it in the air. I fully charged my 2 li-po batteries, and put fresh batteries in the TX. When plugging in the battery everything looked good, tested the control surfaces, when I hit the throttle, it started up, but by midway it was pulsing on/off, then would cutoff after a couple second or 2. Repeated several times did the same thing, tried the other battery, same thing. Thinking both batteries might be bad I put them on a volt meter and the were both reading about 3.9/4.0 which looked like a full charge to me. Connected 1 of the batteries to another motor, and it seemed to have good power. So now I'm assuming something wrong with the esc? Anyone have any ideas on how to get it going again?

Thanks Tom
smallflyer is offline  
  Reply With Quote
Old 07-23-2014, 01:00 AM   #2
xmech2k
Ya got any Beeman's?
 
xmech2k's Avatar
 
Join Date: Apr 2009
Location: San Diego, CA
Posts: 2,699
View xmech2k's Gallery21
Thanked 254 Times in 252 Posts
Club: CVMRCC, SEFSD
Awards Showcase

Scratchbuilders Award  1kW  Outstanding Contributor Award 
iTrader: (0)
Friends: (7)
Default

Not being familiar with that plane, I assume from your voltage statement it's a 1 cell battery? Seeing as you havent used it in a while, did you store the batteries fully charged or discharged? Lipos need to be stored at 50% capacity. If not the internal resistance increases, then what you just described happens. You charge them up, without a load the voltage is fine, but when you start flying they suffer from voltage sag and your esc goes into lvc. Get it on the ground and check and voltage is fine. Those tiny single cell batteries are notorious for not lasting long. This is what I suspect is happening, nothing wrong with the esc. As far as working ok in the other plane, is there a lower power demand in that one? This would be easy to verify with a bigger battery where you could plug a volt meter into the balance lead while doing a run up. Not an easy option with a single cell.
xmech2k is offline  
  Reply With Quote
Reply

  WattFlyer RC Electric Flight Forums - Discuss radio control eflight > Electric R/C Airplanes > Indoor & Micro Electric Planes

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Everything You Wanted To Know About Electric Powered Flight AEAJR Beginners 154 10-20-2014 02:46 PM
100+ MPH Club CHELLIE Hi-Performance and Sailplanes 1955 08-20-2014 02:55 AM
Everything You Wanted To Know About Electric Powered Flight AEAJR General Electric Discussions 269 06-27-2014 01:06 PM
Flyzone Calypso ESC wiring issue ewilliam Power Systems 6 01-24-2014 02:32 AM
ESC from Flyzone Cessna vs Flyzone Super Cub gene375 Power Systems 3 10-03-2012 12:58 AM


All times are GMT +1. The time now is 10:43 PM.


Powered by: vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2005 WattfFlyer.com
RCU Eflight HQ

Charities we support Select: Yorkie Rescue  ::  Crohn's & Colitis Foundation



Page generated in 0.15393 seconds with 23 queries