In order to gain the influences of the atmosphere condition on aero-engine starting characteristics

the output power of air turbine starter and ideal starting process at standard atmosphere were analyzed

and the diversities of ground starting performance at non-standard atmosphere were described

e.g.: differences of ignition time

start time and exhaust gas temperature. Besides

with use of constant acceleration method

the starting process was simulated. Based on grounding test conditions

test data was summarized. The ignition and breaking-up time was prolonged with the temperature drop or rise. Comparing the start time below or above 293.15K

it is 3s shorter in hot days than in cold days

so the results meet the theory analysis well.