SELECT T2.Fleet_Series FROM pilot_record AS T1 JOIN aircraft AS T2 ON T1.Aircraft_ID  =  T2.Aircraft_ID JOIN pilot AS T3 ON T1.Pilot_ID  =  T3.Pilot_ID WHERE T3.Age  <  34
Show the fleet series of the aircrafts flied by pilots younger than 34
SELECT T2.Fleet_Series FROM pilot_record AS T1 JOIN aircraft AS T2 ON T1.Aircraft_ID = T2.Aircraft_ID JOIN pilot AS T3 ON T1.Pilot_ID = T3.Pilot_ID WHERE T3.Age < 34
select t2 . fleet_series from pilot_record as t1 join aircraft as t2 on t1 . aircraft_id = t2 . aircraft_id join pilot as t3 on t1 . pilot_id = t3 . pilot_id where t3 . age < value
Show the fleet series of the aircrafts flied by pilots younger than 34