The laminar partially premixed flames of prevaporized Jet A, canola methyl ester (CME), palm methyl ester (PME), soy methyl ester (SME), and blend flames of Jet A and CME-PME-SME were studied over a range of equivalence ratios of 0.53-0.83 with and without heated coflow. Coflow velocity ranged up to 3.5 m/s. Measurements of blowoff velocities, flame temperature profiles, and flame dimensions were made. The injector was designed to produce a uniform inner flow and had an inner diameter of 12.7 mm. The flames were laminar and blue in color (dominated by homogeneous gas-phase reactions). The temperature profiles in all the flames were similar, with a peak temperature of 1740 K. Inner cone height and outer cone height both increased with equivalence ratio. Lifted flames were obtained at coflow velocity of 3.5 m/s; the liftoff height stayed approximately constant regardless of equivalence ratio. The blowoff velocity increased with equivalence ratio for all the flames; the difference in blowoff velocity of pure biodiesel flames and pure Jet A flames was within experimental uncertainty. The blowoff velocity of the blend flames ranged around the values for the pure fuel flames. A Damköhler number (based on the velocity gradient at the jet boundary and chemical reaction time scale estimated from laminar flame velocity) of 2-8 characterized the blowoff velocity. As the coflow velocity was increased, the blowoff velocity was increased and the differences between the values for the various flames became smaller.