MACHINE PERFORMANCE CURVE 



163 



Example (5). Given the machine performance curve in 

 standard density air, find the machine performance curve at 10,000, 

 20,000, 30,000, and 40,000 feet. 



The values of a at these altitudes are 740, -530, -368, and 

 242. 



The five curves are all plotted on page 162. 



