Vetoed proposal would define ultralight aircraft and related flight terms

The proposal would define an ultralight vehicle using single-person operation, airworthiness certification, and weight and flight limits. The definition covers vehicles used or intended for one person to operate in the air. The vehicle must be used or intended for one person to operate in the air and must not have a U.S. or foreign airworthiness certificate. An unpowered vehicle must weigh less than 155 pounds. A powered vehicle must weigh less than 254 pounds empty, excluding floats and safety devices meant for a possible catastrophe; hold no more than five gallons of fuel; reach no more than 55 knots at full power in level flight; and have a power-off stall speed of no more than 24 knots.

The proposal would define advanced air mobility, powered-lift aircraft, and vertiports, and include ultralight vehicles in the advanced air mobility definition. The proposal defines powered-lift aircraft by their ability to take off and land vertically, fly slowly, and use engine-driven lift or thrust for takeoff and at least one nonrotating wing for level flight. Advanced air mobility means a system that mainly uses electric aircraft to carry passengers or cargo in urban or regional areas. A vertiport is land, water, or a structure mainly used for powered-lift aircraft to take off or land, with related buildings or facilities.