Aerospike nozzles are the kind of nozzles which are alternative for the conventional rocket nozzles due to its altitude adaptive feature. These kinds of nozzles do not use any mechanical components while operating under off-design conditions. In the present work, the characteristics of aerospike nozzle with full-length and truncated spike configurations are studied experimentally. The truncation is done to 30% length of full-length spike. The effect of axial location of these plugs is also studied by placing the plug at three different locations like inner extreme position, mid-position, and outer extreme position. The experiments were conducted for two different nozzle pressure ratios of 3 and 4. From the studies, it is found that the truncated plug placed at mid-position is able to accelerate the flow better than any other configuration. The thrust generated by the nozzle with above-said configuration is almost equal to the thrust generated with full-length plug. However, the truncated plug configuration at middle position may be considered since it is delivering same thrust with less weight of the nozzle.