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You are not able to hear the N1 fan above 95%, the reason for this is the huge amount of air being sucked in. Wet conditions can help. It's like that for almost every engine variant. It's called the sweet spot, and that occurs from 80%N1 and upwards to the mid 90's. All engine variants have their own sweet spot, and alot of other factors are taken into account ex. The shape of the intake, the depth of the intake, the amount of N1 fan blades, the shape of the fan blades, weather conditions ect. They have actually designed the intake, so that the N1 buzz saw sound get's muffled out, by the massive incomming airflow. Otherwise the sound would be to loud for the passengers. It's all about physics. Sound is pressure waves, and the are drowned out and disturbed by the incomming airflow at high N1%. Trust me this was a TOGA takeoff :-)
Nearly every A35K departure I have seen theyve been at Toga power, the roar is fantastic
@@aseem7w9 I do know a few flight crew on them yes - but you can audibly hear the difference like in this video..
@@aseem7w9 rule of thumb with rollers. If the roar is drowned out, that means it’s at toga thrust. Or max thrust.
This RR Trent XWB in TOGA takeoff mode are the beast!!!!!!!!
Awesome video!! Very efficient pilot, engine spool to good old traditional 40% N1, then direct to FLX and TOGA!!
Beautiful!
Wonderful!!!
💪👍 RR the BEST sound
Imagine how not so good A350’s would sound if they had GE engines.
Nice video but that sounds like a Flex takeoff to me as i can't hear that buzz saw sound the XWB's have during TOGA
You are not able to hear the N1 fan above 95%, the reason for this is the huge amount of air being sucked in. Wet conditions can help. It's like that for almost every engine variant. It's called the sweet spot, and that occurs from 80%N1 and upwards to the mid 90's. All engine variants have their own sweet spot, and alot of other factors are taken into account ex. The shape of the intake, the depth of the intake, the amount of N1 fan blades, the shape of the fan blades, weather conditions ect. They have actually designed the intake, so that the N1 buzz saw sound get's muffled out, by the massive incomming airflow. Otherwise the sound would be to loud for the passengers. It's all about physics. Sound is pressure waves, and the are drowned out and disturbed by the incomming airflow at high N1%. Trust me this was a TOGA takeoff :-)
Im really amazed how can a big heavy aircraft can fly in under 40sec.
Manchester
Imagine how it sounds inside the plane.
It might sound like this ua-cam.com/video/0NAHM2fJBgk/v-deo.html
How do you compare TOGA on the A380 between Trent 900 and GP7200?
Trent 900 is a lot louder
@@Sun-nk3ro Really?