The paper presents experimental studies of the liftoff and blowout stability parameters of pure hydrogen, hydrogen/propane and hydrogen/methane jet flames using a 2 mm burner. Carbon dioxide and Argon gas were also used in the study for the comparison with hydrocarbon fuel. Comparisons of the stability of H(2)/C(3)H(8), H(2)/CH(4) and H(2)/CO(2) flames showed that H(2)/C(3)H(8) produced the highest liftoff height and H(2)/CH(4) required highest liftoff, blowoff and blowout velocities. The non-dimensional analysis of liftoff height was used to correlate liftoff data of H(2), H(2)/C(3)H(8), H(2)/CO(2), C(3)H(8) and H(2)/Ar jet flames tested in the 2 mm burner. The suitability of extending the empirical correlations based on hydrocarbon flames to both hydrogen and hydrogen/hydrocarbon flames was examined. (C) 2009 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.