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We present new observations of 470 stars using the Fibre Large ArrayMulti-Element Spectrograph (FLAMES) instrument in fields centered on theclusters NGC 330 and NGC 346 in the Small Magellanic Cloud (SMC), and NGC 2004and the N11 region in the Large Magellanic Cloud (LMC). A further 14 stars wereobserved in the N11 and NGC 330 fields using the Ultraviolet and Visual EchelleSpectrograph (UVES) for a separate programme. Spectral classifications andstellar radial velocities are given for each target, with careful attention tochecks for binarity. In particular we have investigated previously unexploredregions around the central LH9/LH10 complex of N11, finding ~25 new O-typestars from our spectroscopy. We have observed a relatively large number ofBe-type stars that display permitted Fe II emission lines. These are primarilynot in the cluster cores and appear to be associated with classical Be-typestars, rather than pre main-sequence objects. The presence of the Fe IIemission, as compared to the equivalent width of H$\alpha$, is not obviouslydependent on metallicity. We have also explored the relative fraction of Be- tonormal B-type stars in the field-regions near to NGC 330 and NGC 2004, findingno strong evidence of a trend with metallicity when compared to Galacticresults. A consequence of service observations is that we have reasonabletime-sampling in three of our FLAMES fields. We find lower limits to the binaryfraction of O- and early B-type stars of 23 to 36%. One of our targets(NGC346-013) is especially interesting with a massive, apparently hotter, lessluminous secondary component.

The VLT-FLAMES survey of massive stars: observations centered on the Magellanic Cloud clusters NGC 330, NGC 346, NGC 2004, and the N11 region