Warrior on the Edge of Time is Hawkwind 's fifth studio album. It reached number 13 on the U.K. album charts and was their third and last album to make the U.S. Billboard chart, where it peaked at number 150. Many of the lyrics are by Michael Moorcock and the album is loosely based on the concept of Moorcock's ' Eternal Champion '. Reviews have been mixed, with Melody Maker panning the album and particularly criticizing the vocal work while the All Music Guide has praised the album for features such as the songwriting. Although not officially charting, single " Kings of Speed " managed a considerable amount of airplay and underground success, particularly in dance clubs. The album also notably represented only a slight change from the previous album in terms of personnel. [ 1 ] Having recruited a second drummer, Alan Powell, this album's line-up was still short-lived. Soon after the album's release, bassist Lemmy was sacked and vocalist Robert Calvert rejoined by the end of the year. Lemmy would go on to form the popular heavy metal/hard rock band Motörhead shortly after his departure, which alludes to the song " Motorhead " from this album. Contents "Assault and Battery" lyrics quote from Henry Wadsworth Longfellow 's poem "Psalm of Life". The song is a popular live number, being performed occasionally over the years, and has appeared on numerous live albums, sometimes under the title "Lives of Great Men". It was included as part of the live show