nose-dive –n. to drop suddenly with the front end pointing toward the ground
cockpit –n. are in an airplane where a pilot sits
aviation –n. related to flying vehicles such as airplanes and helicopters
stall –v. to stop flying suddenly because of a loss of lift
regulators –n. government officials who enforces laws and rules
manually –adv. operated by a person, not automatic
sensor –n. a device that senses heat, light, sound, force or other things electronically