SELECT T1.Aircraft FROM aircraft AS T1 JOIN airport_aircraft AS T2 ON T1.Aircraft_ID  =  T2.Aircraft_ID JOIN airport AS T3 ON T2.Airport_ID  =  T3.Airport_ID WHERE T3.Airport_Name  =  "London Heathrow" INTERSECT SELECT T1.Aircraft FROM aircraft AS T1 JOIN airport_aircraft AS T2 ON T1.Aircraft_ID  =  T2.Aircraft_ID JOIN airport AS T3 ON T2.Airport_ID  =  T3.Airport_ID WHERE T3.Airport_Name  =  "London Gatwick"
What are the names of all aircrafts that are associated with both London Heathrow and Gatwick airports?
SELECT T1.Aircraft FROM aircraft AS T1 JOIN airport_aircraft AS T2 ON T1.Aircraft_ID = T2.Aircraft_ID JOIN airport AS T3 ON T2.Airport_ID = T3.Airport_ID WHERE T3.Airport_Name = `` London Heathrow '' INTERSECT SELECT T1.Aircraft FROM aircraft AS T1 JOIN airport_aircraft AS T2 ON T1.Aircraft_ID = T2.Aircraft_ID JOIN airport AS T3 ON T2.Airport_ID = T3.Airport_ID WHERE T3.Airport_Name = `` London Gatwick ''
select t1 . aircraft from aircraft as t1 join airport_aircraft as t2 on t1 . aircraft_id = t2 . aircraft_id join airport as t3 on t2 . airport_id = t3 . airport_id where t3 . airport_name = value intersect select t1 . aircraft from aircraft as t1 join airport_aircraft as t2 on t1 . aircraft_id = t2 . aircraft_id join airport as t3 on t2 . airport_id = t3 . airport_id where t3 . airport_name = value
What are the names of all aircrafts that are associated with both London Heathrow and Gatwick airports ?