WTC = Webs top constructer not World trade center. My way of getting pounds of thrust is: first put engine to full power.second wait a minute. third you multiply highest temp (that you see) by pressure last divide by 1.5 EX. (for f-1877) 100(pressure) times 1000(temp) =100,000. 100,000 divide by 1.5 is 66,666.66 round to nearest thousand 66,000.00 ;)