"Upon rotating the aircraft off the runway, the landing gear raised itself with the gear handle in the down position. The transit light remained on and I did not have any green lights illuminated. After climbing to some altitude I let departure know I wanted to return to land. The hydraulic circuit breaker popped, and I was able to manually drop the gear by releasing the hydraulic pressure in the lines holding the gear up. After that I had three green lights and I also felt the gear fall down and lock. I did one low approach and then a full stop landing. Air traffic control was a great help. I'm glad we have great controllers to help us when we're in trouble." By jlbryan2088