First of all, do not question the science. Or lack of, if you prefer. Half the charm of this show is the blissful ignorance of science in its many forms.
Once you've done that, Silverhawks is very easy to enjoy. It's a charming, well-meaning little show that tries to convey a nice messages to kids about duty, morals and those kind of things. The stories revolve around a group of "partly metal, partly real" humans that are sent out into the galaxy to help fight a mixed bag of weird criminals (Batman has nothing on these guys in that department).
The quality varies but the charm usually wins through.