Hawkwind were definitely one of the more SF bands out there, both with and without the influence of Moorcock. I did enjoy 'The Chronicle of the Black Sword,' both album and tour. It was something of a resurrection musically, at least to me, but sadly (again to me anyway) their music dropped downhill very dramatically after that. I had been an avid follower of the band up until then, but haven't seen an album I liked from them since.
Anyway, it was great to see SF themes pervade everything they did, from the style of the music, to the lyrics, to the stage shows, right down to the whole mythos built around the band. Anyone ever read the books? I read Queens of Deliria, and rather enjoyed it I have to say - a strange concept, a novel in which the band members and the music are all part of the story line. As I recall they had guns with tape recorders in them that would fire decent music (ie Hawkwind and other such subversive counter-culture music) against the forces of the Red Queen, and there was something to do with a giant pinball machine, and more.
Anyway, as a teenager I found it all most entertaining, and the tie-ins between the different forms of media really added to that for me. It was almost a precursor to what we have today where text, audio, video and interactivity come together on the internet. They had plenty of references to other SF too, outside of just their own, with 'Fahrenheit 451' as a song, 'Astounding Sounds, Amazing Music' (referencing classic SF magazines) and more.
And yes, I still listen to the band today, 'Sonic Attack,' 'Black Sword' and the awesomely named 'Quark, Strangeness and Charm' being particular favorites.