The specific fear of the takeoff phase is often a subset of Aviophobia (fear of flying), but it is specifically linked to the physical sensations of rapid acceleration and the sudden change in altitude. Many sufferers experience "Thalassophobia" (fear of the unknown) or Claustrophobia during this time. The anxiety is often triggered by the intense noise of the engines and the "clunking" sound of the landing gear retracting, which a nervous flyer might mistake for a mechanical failure. Psychologically, it is the moment when a passenger feels a total loss of control, as they are physically pushed back into their seat by G-forces. To manage this, experts recommend "fact-based" exposure, such as learning about the "Thrust Reduction Altitude" (where the engine noise naturally dips) and practicing rhythmic breathing to counteract the physiological "fight or flight" response triggered during the climb.