ATC descent rate base on aircraft type

Official Microsoft Flight Simulator Wishlist
1

If the VS value is less than 800 ft/min,
default ATC will ask you to speed up.
Slow propeller GA aircraft sometimes find it difficult to meet that requirement.
For slow aircraft , it would be better to apply 600 ft/min instead of 800.

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2

Descent can be done way over 500 ft/min with any aircraft, the engine power determines only the climb rate. Evidently the ATC was telling you to expedite the descent because you were approaching your destination, as confirmed by the following instruction.
Also, your altimeter is set incorrectly and there is something strange with your screenshot: why is the ATC telling you to descend to 8,000 ft when you are at 2,800?

3

Yep the problem isn‘t the descent rate trigger for the expedite command but a bad calculation of the system. At around 100 knots an 800 fpm descent is a pretty steep path, 500 fpm should be about 3 degrees. It will probably command you to expedite if you end up above its pretended vertical path. If it started the descent earlier and shallower -500 fpm was absolutely spot on. You could increase your descend angle in the G1000 but that‘s not really common, the sim ATC rather shouldn‘t expect you to dive down that steeply.

4

The later instruction tells them to maintain 3100, and presumably that shot was taken a few minutes later, while they are on the glideslope, which according to the magenta diamond it looks like they are.

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5

I believe the topic author meant rather an unpressurised aircraft, not prop. You wouldn’t want to descend a lot faster than 500 fpm in an unpressurised aircraft.

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6

30.32 vs 30.38

The difference in altitude between these two pressure settings would be 4 feet in standard atmospheric conditions. However, it’s important to note that this difference might not be perceptible or relevant in practical terms for most flight operations.

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Not if you value your ear drums !!

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tower-clearance

This, in MSFS, is TOWER talking !!!

  • 10 miles east of WHERE ?

  • Tower telling you to descend to a fixed altitude !

  • Tower clearing you to MIFEV !

Apart from Tower being the one who is doing this, :scream: and it should be Approach, this sounds far more like European ATC, than USA ATC ( European ATC facility “CONTROL” vs “Approach” ?)

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9

Well
it’s not that bad, 500fpm is really just where you don’t need to continuously pop your ears on descent. 1500fpm is perfectly doable in a 172 if you’re aggressive with the descent, but your passengers will definitely feel the difference in the air through the descent (getting warmer, more humid, pressure going up, feeling the need to pop their ears).

I’ve once done 3500 in a “GET THE HELL DOWN NOW” incident with a controller. You can definitely feel the change in the air as you’re descending.

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10

Yes, that’s exactly what I said, isn’t it? You wouldn’t want to descend faster than 500 fpm in an unpressurised aircraft.

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11

I think the title of this wish should be updated to something that describes better the request, could be something like “ATC descent rate base on aircraft type”.

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12

Title altered for better visibility.

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13

Few minite later, you are right.
I only want to show “expedite”

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14

I use c208B caraban With VNAV.
Vnav make about -750ft/min (under 800)