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?
CREATE TABLE `pilot` (
  `Pilot_Id` int(11) NOT NULL,
  `Name` varchar(50) NOT NULL,
  `Age` int(11) NOT NULL,
  PRIMARY KEY (`Pilot_Id`)
);
CREATE TABLE `aircraft` (
  "Aircraft_ID" int(11) NOT NULL,
  "Aircraft" varchar(50) NOT NULL,
  "Description" varchar(50) NOT NULL,
  "Max_Gross_Weight" varchar(50) NOT NULL,
  "Total_disk_area" varchar(50) NOT NULL,
  "Max_disk_Loading" varchar(50) NOT NULL,
  PRIMARY KEY (`Aircraft_ID`)
);
CREATE TABLE `match` (
"Round" real,
"Location" text,
"Country" text,
"Date" text,
"Fastest_Qualifying" text,
"Winning_Pilot" text,
"Winning_Aircraft" text,
PRIMARY KEY ("Round"),
FOREIGN KEY (`Winning_Aircraft`) REFERENCES `aircraft`(`Aircraft_ID`),
FOREIGN KEY (`Winning_Pilot`) REFERENCES `pilot`(`Pilot_Id`)
);
CREATE TABLE `airport` (
"Airport_ID" int,
"Airport_Name" text,
"Total_Passengers" real,
"%_Change_2007" text,
"International_Passengers" real,
"Domestic_Passengers" real,
"Transit_Passengers" real,
"Aircraft_Movements" real,
"Freight_Metric_Tonnes" real,
PRIMARY KEY ("Airport_ID")
);
CREATE TABLE `airport_aircraft` (
"ID" int,
"Airport_ID" int,
"Aircraft_ID" int,
PRIMARY KEY ("Airport_ID","Aircraft_ID"),
FOREIGN KEY ("Airport_ID") REFERENCES `airport`(`Airport_ID`),
FOREIGN KEY ("Aircraft_ID") REFERENCES `aircraft`(`Aircraft_ID`)
);
INSERT INTO `pilot` (`Pilot_Id`, `Name`, `age`) VALUES (1, 'Prof. Zackery Collins', 23);
INSERT INTO  "aircraft" VALUES (1,"Robinson R-22","Light utility helicopter","1,370 lb (635 kg)","497 ft² (46.2 m²)","2.6 lb/ft² (14 kg/m²)");
INSERT INTO  "match" VALUES ("1","Mina' Zayid , Abu Dhabi","United Arab Emirates","March 26–27","Hannes Arch",1,1);
INSERT INTO  "airport" VALUES (1,"London Heathrow","67054745","1.5%","61344438","5562516","147791","478693","1397054");
INSERT INTO  "airport_aircraft" VALUES (1,6,5);