👉 A boltless system is a type of propulsion system in which no external power source is required to operate an aircraft. This means that the aircraft can be flown without any external assistance, such as engines or propellers, and can be operated using only the aircraft's internal combustion engine. The term "boltless" refers to the absence of an external fuel tank or fuel delivery system, which allows for a more streamlined design and reduced weight compared to conventional jet aircraft.
