After recording the album, the group undertook an 11 date tour of Germany and the Netherlands in March, followed by a five date tour of France in April. In June, during which the album received its general release, the group undertook a 10 date tour of England with support from former bassist
Lemmy's group
Motörhead. They followed this with appearances at the
Stonehenge Free Festival on 21 June and headlined the
Reading Festival on 28 August. The group appeared on
Marc Bolan's show
Marc at
Granada Television's Manchester studios on 14 September, miming to a pre-recorded version of the single "
Quark, Strangeness and Charm", even though it had been released two months previously. Their spot on the show was secured as their management team, Tony Howard and
Jeff Dexter, also handled Bolan. Their appearance was significant in that Brock did not appear, due to a long-standing resentment on his part towards Bolan. His role was filled by Shaw recording the guitar tracks at the pre-record, while Calvert mimed guitar during filming. An extensive 20 date UK tour in September and October was undertaken, with support from
Bethnal (who would go on to be Calvert's backing group for his 1981 album
Hype). This was immediately followed by an October tour of France, but due to Calvert's erratic behaviour, the tour was aborted after 3 dates. However, in a BBC4 documentary on the band, several of the band members stated that the reason was indeed Calvert's mental health and that he chased after the band's car waving a sword and climbing over cars to reach them. In January and February 1978, the group recorded the album
PXR5 and in March toured North America, after which they disbanded. Calvert and Brock would then go on to form the
Hawklords. There are several live recordings in existence from these tours that have been issued under different titles. The dates given for the live
PXR5 tracks do not match the tour dates and if these tracks actually were recorded at a live show, then they were subsequently subject to studio overdubs. All the other tracks, although differing sources are given, are the same recordings, with the exception of "Robot" which is of two different performances. •
PXR5: "Uncle Sam's on Mars" – Hammersmith Odeon, November; "Robot" and "High Rise" – Leicester De Montfort Hall, November. •
Weird tape 2: "Quark, Strangeness And Charm", "Master of the Universe", "Welcome to the Future", "Spirit of the Age", "Sonic Attack" – Stonehenge Free Festival and Oxford. •
Weird tape 3: "High Rise", "Damnation Alley", "Uncle Sam's on Mars", "Iron Dream", "Robot" [version 1] – Stonehenge Free Festival. •
Weird tape 5: "Brainstorm", "Wind of Change", "Assassins of Allah", "Forge of Vulcan" – Hammersmith Odeon. "Steppenwolf" – Leicester DeMontford Hall. •
Hawkwind, Friends and Relations Volume 1: "Robot" [version 2] – no source stated. •
Hawkwind, Friends and Relations Volume 2: "Spirit of the Age" – Chicago, March 1978. •
Hawkwind Anthology: "High Rise", "Quark, Strangeness and Charm" – USA, March 1978 •
PXR5 2009 re-issue: "Quark, Strangeness and Charm" – USA, March 1978. •
Quark, Strangeness and Charm 2CD 2009 re-issue: "Spirit of the Age"; "Robot" [version 2 edit]; "High Rise". On 31 March 2023, Atomhenge Records (via
Cherry Red) issued a new
Steven Wilson mix and surround mix of the album as part of
Days of the Underground (The Studio & Live Recordings 1977-1979) 8
CD/2
BR boxed set. This set also collated most of the previously issued live recordings of the time (Croydon
Fairfield Halls 25 September, Ipswich
The Gaumont 27 September and Leicester
De Montfort Hall 29 September) with additional previously unissued performances. An abbreviated vinyl release of the live shows followed for the year's
Record Store Day as
The Iron Dream in a quantity of 2500. ==Songs==