YOU SAID:
pilots are flying the flying airplane
INTO JAPANESE
パイロットは空飛ぶ飛行機を飛んでいます
BACK INTO ENGLISH
Pilot is flying a flying plane
INTO JAPANESE
パイロットは空飛ぶ飛行機を飛んでいます
BACK INTO ENGLISH
Pilot is flying a flying plane
That didn't even make that much sense in English.