Qual era a aeronave voada quando a unidade do eixo era a Luftwaffe (**) e a aeronave inimiga era a Ju.88?
CREATE TABLE table_name_40 (aircraft_flown VARCHAR, axis_unit VARCHAR, enemy_aircraft VARCHAR)
SELECT aircraft_flown FROM table_name_40 WHERE axis_unit = "luftwaffe (**)" AND enemy_aircraft = "ju.88"