[FLIGHT TAKEOFF] United 777-200 - Powerful Takeoff from Sunny San Francisco to Denver 

Thanks!

The buzzsaw calms me down

@TheFejfAviation 7:55 - 8:05 - I notice how in that video cutoff, there a change in aircraft sounds, which I've noticed anyway when aircrafts climb to higher altitudes. The motor-like sound seems to be mainly at liftoff and during the initial climbs, but then the jet sound (separate from motor sound) I've always noticed gets louder as aircraft keeps climbing higher up. Is the increased jet sound because the jet power is being turned up to higher levels as altitude gets higher, since speed of aircrafts at higher altitudes continue to increase. I know they are up to over 500 mph once reaching 35,000 feet during airline flights. But as for the motor sound being turned off before plane gets that high, is the motor sound a part of the engine that simply helps lift the aircraft upwards but that's it? Where the separate jet sound is the speed of aircraft? Basically, two separate sounds and two parts of the engine, one for lifting and one for speed? That would make sense since once plane is at cruising altitude, the motor sound is gone but jet sound remains all flight, and at its loudest at cruising altitude

@psquareflight Yeah, jet airliner aircrafts have different sounds. See my question above to @TheFejfaviation, what do you think?

@@alvexok5523 From what I've heard, they actually decrease the throttle at cruise altitude. That "motor" sound you hear is vibration caused by the tips of the fan blades going supersonic, which only occurs around 85-93% throttle. I believe during cruise the throttle is set around 35-45%, so you don't hear the hum/buzz/growl. I would also like to add that at higher speeds, you are less likely to hear the "motor" sound even if the engine is in the 85-93% range because the high speed of air rushing into the engine reduces or smoothes out the supersonic shockwaves at the fan blade tips.

I think this is the GE90

This didn’t age well.

@@robbie19143 it’s a PW4000

@Qatar airways Airbus a350 it’s a PW4000

sounds like A350's Trent XWB

Awesome! Enjoy and safe travels!

@@TheFejfAviation thanks

It is now flying

Its pretty common for US airliners to use wide-bodies on domestic routes. The reasons can vary but some are due to air craft re-positioning, high demand routes, training purposes & premium routes. Normally they will also flow between that airlines hub airports. You pretty much had the right answer.

Yes the 777 goes transcontinental on United for demand purposes. Not for the range. I’ve been on the 777s before for domestic routes, and it is a nice plane for a quick 5 hour hop!

I liked the views. However, I have one question at 7:55 - 8:05, the video was cut during that time, and it seemed like inbetween that cut the aircraft moved some distance according to the change in sound of the aircraft. Yet it almost looked like the aircraft was almost in the same place, it hardly moved forwards at all since we were looking out at the same bay from such a similar angle. But according to aircraft sound, some time passed during that cut. How could all that time have passed yet it still seems like they're still in the same spot?

True but these are P&W

@@TheFejfAviation I prefer the TF39 And I'd just say these are PW4090s

The sound is the same

@@flushometer19_8 agree

@@flushometer19_8 kinda similar, but a bit different ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ySJJaTlwyQM.html

Slightly long takeoff roll