We present experimental data on the autoignition of polydispersed droplets of liquid n-pentane injected axisymmet-rically from a circular nozzle into a confined turbulent coflow of hot air at atmospheric pressure, with the aim ofexamining the emergence of autoignition in the presence of flow, mixture and phase inhomogeneities. In the regime ofinterest, autoignition occurred in the form of random spots. At higher air temperatures and lower fuel injection veloc-ities, autoignition was observed closer to the injector; the corresponding delay (residence) times also decreased. Withincreasing air velocity and hence turbulent velocity fluctuations, autoignition moved downstream but the delay timesdecreased. The results are also compared to equivalent results obtained with n-heptane (from previous experiments inthe same apparatus). The data can be used for the development of advanced multiphase turbulent combustion models.