A lot of free space. e.g. a big field. Don't fly in parks where other people are until you are a sufficient flyer. You could seriously injure somebody.
A good friend or assistant to start the plane and help you in dangerous situations.
A remote control plane - check if everything is o.k. before every flight. Electric models are available as well as the traditional gas models.
A transmitter - make sure the batteries are charged.
All necessary equipment to maintain your aircraft