The first stage of the Saturn I was tested three times using dummy upper stages filled with ballast water, see Project Highwater and this question. The first two flight tests of the Saturn V (SA-501 and SA-502, Apollo 4 and 6) were done with all three stages fuelled. See also Saturn I and Saturn V

Are there other rockets with two or more stages that have been flight tested using a first stage with dummy upper stages at first?

  • $\begingroup$ I believe the all-up Saturn V test plan was very unusual at the time, with stage-at-a-time testing being the norm. $\endgroup$ – Russell Borogove Jun 5 '19 at 15:41

Europa 1: lots of tests of the first stage with dummy upper stages, and of individual stages (i.e. a launch of the second stage only, etc.).

  • $\begingroup$ Europa 1, there were a lot of tests but no success. Are there other rockets with more success like Saturn 1? $\endgroup$ – Uwe Jun 5 '19 at 20:37

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