13 minutes to FL280 with ZFW of 511800 lbs. and fuel of 250300 lbs. for a 13:30 hours flight KMEM-RJAA. An amazing show of power when you consider the A/C weighed 381.5 tons. The engines are powerful.

 

Just an observation, no help needed.

Come on where did you hide the rocket engines? In the APU casing? 

 

Seriously, true the T7 is amazingly powerful!

Well, the engines had to be powerful enough to do a one-engine-out takeoff and climbout after V1 at maximum weight limited by...mostly power of said engines.^^;

 

Still sporty as heck! And I still gotta try V1-cut at MTOW someday.