Hope this is the right place

could anyone advise me the name of the anime (early 80's)

there are 5 planes
each of the plane need to be attached to the body of the robot to control it.
So whenever some big or evil creature appear, they will be 5 robots fighting it.
Ultimately the 5 robots will combine to 1 single big robot.

(not voltron)

Thank you very very much

the anime is continuing in 13 days.

Thank you
But unfortunately not

Actually there are 5 smaller robots when fighting an aliens or something, if they almost lose they will combine into a single huge robot

There are 5 pilots which each control a smaller robot via their plane.
Where each of the plane tansform into a robot head once it’s attached to the body

If I am not mistaken one plane landed vertically head on to the smaller robot while the other landed horizontically... the other 3, I can’t really remembered.

Thank you