Kiel (left) and H–R (right) diagrams for our sample. Class V objects are plotted in black, those with other luminosity classes (IV, III–IV, and V–III) in red. Stars analysed using HHeN lines are plotted as diamonds, while those with (stellar) contamination in the fibre aperture (see Sect. 4.3.1) are plotted as open symbols. Evolutionary tracks and isochrones for the LMC are from Brott et al. (2011) and Köhler et al. (2015), with an initial rotational velocity of 171 km s^-1 (see Sect. 6.1). The zero-age main-sequence (ZAMS) is indicated in the two plots by the bold black line, and typical uncertainties are indicated in the upper and lower corner, respectively.