On take-off at sea level conditions, the burner section of the JT9D-7 and-15 engines reaches 2,350°F. In the Boeing 747 and McDonnell Douglas DC-10, developing 45,500lb of thrust, the turbine blades need to be kept at some 500° cooler at 1,850°F, to preserve the metal. Two per cent of the total engine airflow streams at a rate of 51b/scc through 2,900 needle thin holes which have to be bored in the baffles.
Increasing efficiency
Aircraft Engineering and Aerospace Technology ; 44 , 9 ; 68-70
1972-09-01
3 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Emerald Group Publishing | 1973
Emerald Group Publishing | 1973
Emerald Group Publishing | 1972
Emerald Group Publishing | 1972
Emerald Group Publishing | 1971