 In 1960, the Royal Aircraft Establishment at Farnborough was given the job of considering how the Blue Streak missile could be adapted as a satellite launching vehicle, in conjunction with other rocket stages.Accordingly, the 1957 concept design for a combined Blue Streak-Black Knight launcher was put forward once again, and this time received a favourable appraisal; the project was assigned the rainbow code of "Black Prince"; in official documentation, the platform was referred to as the "Blue Streak Satellite Launch Vehicle" (BSSLV).However, it was quickly recognised that the programme's cost would be a major issue, one estimate of the total development costs would have been equal of half of the Britain's university budget.