solve my problem

hai friends and gurus,
please answer for me. it beginer question. but i am posting here because nobody answered me .

my problem is i have an helicopter that is looking towards x axis. i want the helicopter move along all directions using x key for forword and X key for backwrd . the helicopter moves only fornt and back direction of its. if i rotate the helicopter in 90 degree y axis means then the helicopter must go front direction of the it now that is z axis.



this is my helicopter

give me the solution for it friend

Were are the moderators?

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