The diagram provides a detailed procedure for the construction and the mechanism of a hot balloon.
Overall, the hot-air balloon is constructed of three main parts namely the envelope, burner and basketseveral. Moreover, it is operated via the utilization of hot-air circulation.
As can be seen from the picture, the above part of the balloon involves two main parts the big envelope and the parachute valve with different functions. Specifically, the largest part is the envelope, which is made of a combination of a plethora of strips of fabric gores with multiple nylon panels sewn together. Additionally, the parachute valve located at the top of the balloon works as a seft-sealing flap making hot air escape in a controlled manner. At the base of the balloon is a skirt that is intimately connected with a rectangular basket, which provides seats for visitors and is secured by four firm ropes.
Regarding the burner, which is one of the most important elements of the hot-air balloon. It serves as an engine, mixing propane and oxygen in two metal containers, therefore, igniting flame to make hot air. As a result, the balloon becomes lighter and higher when it receives hot air while, in versus, the reduction of the amount of propane burned lets cool air, making the balloon heavier and pulling it downward.