I purchased a brand new Phantom 3 Standard in early 2016 just after the Phantom 4 entered the market. During that time I have never had an issue with the aircraft. I am a casual user, flying my drone primarily in the summer months. After flying it this past summer several times, I was going to fly it one more time early this past fall. After configuring the drone in all the usual settings of the past, I started the aircraft. The minute the aircraft lifted off the ground not more than a foot or so, it sped away at high rate of speed moving to the right. I could control the altitude but not the direction nor the speed. The only choice I had to gain control of the aircraft was to crash it before it became a complete flyaway. After retrieving the drone (there was no damage) I carefully reviewed all of my settings which were the same settings I always used. So I tried one more lift off which resulted in the same uncontrolled partial fly away towards the aircraft's right. I shut the engine down and brought it into the house for a close inspection again. I could not find any cause. Is there anyone who can provide me with insight into resolving this issue? Thank you in advance.