[FatalLogic]

It's a fun idea. Though it would have to be a really small R2-D2 that could work from the inside.

The fictional R2-D2 had a big advantage of being in vacuum so it could work from the outside, without disturbing the airflow, and without having its work disturbed by the airflow.

Envisage what happens at 900km/h in atmosphere, if R2-D2 tries to lift up an exterior wing panel to troubleshoot a blocked line?