A350 rolling during take off

Hello, what should I do if I’m flying with a 100% capacity and the plane starts rolling in both sides when I’m about to reach my cruising altitude. Can you please help me? I’m trying to fly from Singapore to New Ark

What’s your cruising altitude? 100% is too heavy normally…

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Is your speed too low? Usually the rocking means you may be close to stall speed, or are too heavy, which would be the case as you stated your load is 100%.

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35,000ft but when I’m around 32,000ft it starts to do the side way thingy

Generally I put my speed to M.88 but its automatically starts to reduce when I’m climbing above 27,000ft

In real life, they even have special configurations due to weight restrictions and also for passenger comfort. For now, since you can’t adjust the weight, you’ll need to cruise at Mach 0.85 and at a low altitude around 31,000 or 29,000 feet, and slowly step-climb to your final cruising altitude. I also recommend using the fuel burn option and reducing about 2 hours of excess fuel, so that you have enough to make it to Newark + 1-2 hours.

When I did this flight, I wasn’t even at 80% capacity, and 35,000 was too high until I reached about 4-6 hours into the flight.

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While your altitude contributes to the issue, as mentioned above, may I ask what your current speed is? You can find the IAS (Indicated Airspeed) on your HUD or in the status bar.

I get it now, so basically, My climbing was to fast that’s why it starts to roll?

For your pax you should have 143 max.

My speed was M .88 but it starts to get lower and the rolling starts when my speed reached 250 ish

Kind of, your cruising altitude is a bit high, so it’s not that the vertical speed was off but more just that you went too high but were too heavy for that altitude. I recommend decreasing speed to Mach 0.85, going down to 29,000, and seeing if that helps. Every 3-5 hours, you can climb about 2,000 feet, and your final cruising altitude should end up around 37,000 or 39,000 (possibly 41,000)

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This may be part of the issue. 250 knots is a little low while at FL350 with 100% capacity.

I will try this one. Thank you!

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Just as a heads up, you cannot do this while in the air. You will have to be in the ground (and off the runway) to change any of your weight configurations.

Not really, 250 is pretty normal. As you go higher, your ground speed should increase or normalize between 400-600 knots, however your airspeed goes down. Mach 0.88 is a bit fast, so 0.85 is recommended with the A350, but 250 shouldn’t be too low

Will do. I already closed the game because I was confused on what is happening with the plane

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Helllo there, in general this is what you need to know. Do not go up to higher alts particularly if you have a very heavy aircraft near it’s max takeoff weight. If speed starts decreasing then this is a large indicator that you need to stop climbing. Use Fpltoif fo alts if you struggle.

See the guide below on what step climbing is, it’s exactly what I described above:

Also, be sure to avoid reaching unrealistic speeds, typically you would be at around Mach .85, .88 is just excessive.

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Below is my recount on 99% load in an A330

I would recommend to start at M0.84 at FL310 (eastbound) or FL320 (westbound). 3-4 hours into the flight, you can climb to FL330/340 at M0.85. 11 hours into the flight (sorry I slept as the flight is overnight haha), I climb to final cruising altitude at FL350-380.

As you increase your speed, take note your engine will work harder to maintain that speed. A good tip is try to maintain your throttle below 80% during stable cruise (I read somewhere in forum but I cannot find the link).

You can study the tutorial linked by @Chatta290 above. Hope this helps :))


When your heavy like that you should always step climb to your cruising altitude.

I recommend starting at FL310 or 33. Then climb about 3-5 times, 2000 feet higher every time. Also A350 cruises at M 0.85.