TRANSPORT BY AIR - PLANE TRAVEL - PART SIX (67)

TRANSPORT BY AIR - PLANE TRAVEL - PART SIX soar to ascend effortlessly into the air quickly sonic boom a sound mimicking an explosion  that is generated when a plane flies faster than the velocity of sound stack multiple aircraft hovering above an airport and  waiting for their turn to land standby a reserved ticket for a flight that cannot be purchased beforehand and is only available for a brief period of time before the plane departs stopover a brief halt between two parts of a journey tailspin a condition in which a pilot loses control of an aircraft, causing it to turn round and round as it nosedives to the ground, with the rear making larger circles than the front. take-off the point at which a plane takes off from the ground and commences to fly taxi to travel gently across the landing strip before takeoff or after  landing test flight a flight used to test an aircraft or a specific piece of equipment in the flight ticket a small sheet of paper that authorises the bearer to have a claim to admittance and grants the right to travel on a specific bus, train, or other modes of transportation, or a message or image received on the individual's phone or computer to authenticate the person the right to travel touch down to make contact with the airstrip as the aircraft lands, tourist class the least expensive option for travel aboard a ship, aeroplane, or  lodging in a hotel transit the process of passing through a location on the way to another location travel sickness the uncomfortable sensation of having to travel in a vehicle that triggers a nauseating feeling of being about to vomit turbulence a sequence of swift, forceful changes in the direction of air or water flow. upgrade to provide someone with a fancier aeroplane seat, hotel room, etc. than what the traveler has actually paid for window seat a seat on a plane, train, or other modes of transport that is close to a window.