"Dave" wrote in message
Trents are Rolls Royce, it is the Trent 900 details are
Engine certification was achieved on schedule in October 2004 through the
new European Aviation Safety Agency. Even though it will operate initially
at a maximum take-off thrust of 70,000lb, the Trent 900 is cleared at an
80,000lb rating, allowing margin for future growth. It reached thrusts in
excess of 90,000lb during early test bed running.

The Trents on the B-777 produce over 90,000 lbs. Aren't they the same engine
core?

D.