Drop speed a330

1

Hello everyone has anyone else noticed that when u go to a cruising ALT that ur speed drops?
I was at FL370 then suddenly my airspeed drops

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2

We need more details about your observation

3

You mean your indicated airspeed? That’s not an A330 specific thing.

You should look at your Mach number. That’s a better indication of your speed.

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4

My Mach was .81
Then it went to Mach 0.74

5

What altitude were you cruising at?

Also was your autopilot’s speed function on or off?

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6

FL370 was my Alt

7

the same thing happened to me when I was climbing to FL410. the plane almost stalled out, gladly, I saved it. 😮‍💨

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8

It was on sir

9

So yay I am not the only one

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10

That’s strange. Could you upload a replay of your flight and share it with us on www.sharemyinfiniteflight.com

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11

Generally, the A330 is very sluggish the higher you go. Make sure your load was light enough to be that high and that you were climbing no faster than 500 ft/min

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12

Can I finish my flight
I am going from KSAN-KATL

13

I’ve only flown tests but the A330 seems a bit underpowered compared to the 777 and A350. Likely nothing is wrong with it, P2W is just lower.

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14

Thanks u all for ur help

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15

Couldn’t a sudden change in wind direction cause your airspeed to fluctuate dramatically(sometimes)?

If it can, wind direction changes is a possibility to your airspeed change

16

Could be an issue with you being too high for your aircraft’s weight. If you were heavy, FL370 may certainly be too high.

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17

This is an issue that was there even before the 21.4 update, I don’t know what phase of flight you were, but if your aircraft is heavy, and you had a high climb rate, the aircraft will definetely struggle to keep up with its speed and altitude. You could use a very useful technique which is step climbing, for example, try climbing to FL320 first, wait an hour to two hours before climbing higher. I hope that I helped you enough to enjoy the update!

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18

I am at FL350 and it’s fine now
I am 40min into the flight

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19

Have a great flight then, make sure to use step climbing when heavy, its a useful and realistic tip

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20

Thanks @Mathurin_Garcier and everyone
I will send my Replay after my flight

1 Like