is it normal? never see anyone flying that high
They can cruise at FL430
Sources: trust me bro
The B773ER can be strong enough to cruise at FL430. But mostly never happens because of the weight of the plane when it is loaded
no. typical cruising altitude for said aircraft is between FL300-390. i personally have never seen the B773er higher than that.
Well, I’ve done that just once after a Long-Haul from KLAX to OMDB when I was over Teheran FIR and did cruise for about 45 min of the remaining flight time! But my load then were I think about 20-25%
Try and refer to this guide. This’ll help you in terms of weight/cruising. Unofficial Takeoff and Landing Profiles [777 Family]
The 777-300ER is a low cruiser. If you take q look at @AndrewWu’s fuel burn chart for the 77W you can get a good estimate of the most ideal cruise altitude relative to your load.
Most 777-300ER don’t go higher the Fl360 or Fl370. This being said they can still fly up to FL400 if you want them too, however, it becomes very fuel inefficient.
Yeah possible but not efficient for the flight
Hello! It’s not the best idea to do that. I wouldn’t recommend doing it as the ceiling is 43100, along with going that high can also cause stalls and it is not too efficient for the flight.
You’ll never see a 777 flying that high but it is possible . It’s usually A350’s and 787’s on flight radar 24 that cruise that high but still very rare.
I’ve been onboard a China Eastern 77W that went up to FL400 before, that was a few years back JFK-PVG and it climbed there over Russia, so more than halfway through the flight. I flew CES 77Ws on that route a lot and that’s the highest it even flew. Usually around 340 to 360 is where it would fly.
Thanks a lot for the reply!
No it is not normal, Ceiling for the 77W is FL431, Highest that thing might do on a commercial flight is FL415-FL420. FL350 is a sweet spot for it with what i’ve experienced.
Rare to see the 77W above FL360 irl - weight will typically stop that, and you don’t get much more efficient above 360/380. Just compare the FMC optimal/recommended to your flight plan step climbs and use those.
Man ive seen people fly the CCX/C750 at flight level 51,000. So i wouldnt be surprised.
Because the Citation X and the 77W are completely different aircraft with different performance and cabin pressure limits. Just because the SR-71 can go up to 85,000 feet doesn’t mean a C150 can.
Comparing apples and oranges.
I believe thats the top altitude of the B77W.
Its to high to fly at that altitude at least you are at >10% load factor or something like that.
Probably not normal because the Actual Cruising Altitude is 35,000ft
Does anyone know if the 777-9 will have a higher ceiling?