I had a bad day today. Fueled up, started and went out to the flight line. We were haveing a bit of a cross wind, nothing unusual. I started to roll out and the plane started to pull hard to the left, I straightened it on the runway and when I pulled up to take off, the plane turned right and refused to lift off. Just as I killed the throttle, it left the ground and just cleared the barbed wire fence on it's way to the pond. It landed in the water, but just barelly. It was setting on the landing gear with the wing slightly out of the water. Good news, its a low wing so the radio wasn't soaked. There was some damage to the bottom of the wing. I got it back to the bench and cleaned a lot of the mud off the wheels, took the wing off and took the bottom covering off to drain the couple of pounds of water trapped in the wing. I did a quick check over and couldn't find anything that could have caused the problem. Pilot error I guess. I then fired up the engine to make sure it hadn't inhaled any water. All was OK there. I shut it down and then noticed the VoltWatch had a glowing red light. No yellows at all. Very strange as the battery has only had five or so flights and I charged it all night, pulling it off the charger just before loading it in car. I figured that there was a bad cell. I got it home and hosed off the rest of the mud on the wheels and let it set outside for a couple hours to dry, then to the bench to pull the battery. I turned on the switch again and I now showed a full charge. It's a 6v Futaba 1000mah humpback pack. I just got it out of the plane and there is no sign of damage. I banged it around quite a bit, watching the volt meter and no problems were noted.

This pack goes in the trash. I can't trust it in a plane again, but I'm really wondering just what went on. I'll cycle it a couple times and see if that shows anything, but it was just cycled a couple weeks back. I'm at a loss.

Don