Helicopter
Helicopters were an airborne transport of Earth origin. They were frequently used by the military because they didn't need runways to land.
UNIT troops used a helicopter to rescue the Second Doctor's party from the International Electromatics factory. (DW: The Invasion)
Brigadier Lethbridge-Stewart had his own personal helicopter, which was used by Captain Mike Yates and Sergeant Benton to fly to Devil's End. It was destroyed when it struck Azal's heat barrier, which was surrounding the village, killing Tom Girton. (DW: The Dæmons)
John Hart telephoned for an air sea rescue helicopter to be sent out to find the Third Doctor and Jo Grant. (DW: The Sea Devils)
An RAF helicopter was used to carry out a bombing raid on the disused mine in Llanfairfach to kill the giant maggots created by the pollutants from Global Chemicals. (DW: The Green Death)
The Fourth Doctor and Sarah Jane Smith travelled to Antarctica in a helicopter. (DW: The Seeds of Doom)
On another occasion, while investigating the cause of the disappearance of an oil rig, Sarah was in a helicopter that ditched in the North Sea. (TVC: The Sinister Sea)
Flight Lieutenant Lavel piloted a helicopter to transport Brigadier Lethbridge-Stewart to Carbury. It was shot down by Morgaine. (DW: Battlefield)
Mathew O'Hara of the Butler Institute took a helicopter to and from work. The United Nations had a remote-controlled helicopter called an Odin. (NA: Cat's Cradle: Warhead)
Henry van Statten had a personal helicopter called Bad Wolf One. (DW: Dalek)
Iris Wildthyme knew how to fly a helicopter. (IW: The Panda Invasion)
Helicopters frequently patrolled the area surrounding Gwen Cooper's house in Wales. This aroused her suspicions as she was in hiding but Rhys Williams passed it off as army practice. Following "Miracle Day", an armed helicopter was sent to kill her. Gwen destroyed it with a rocket launcher after a short chase. (TW: The New World)
