Lama is a cute tiny electrical helicopter with coaxial main rotors . Our lab bought it for some experimeantal purpose but fail due to its poor payload carrying capability.
It have not been flew for a long time. I took it out and charged the batteries, then flew it. It is really very stable and tough.
You can hover it and do some adjustment, then free your hands from the transmitter for several seconds with Lama "auto hovering" by itself.
Although one of its balde was bent in a minor crash, it still fly well!! Lama is really easy and strong for the beginners.