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TBM Oxygen starvation at FL310


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Anyone have any ideas or maybe it's just a bug.....

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There's a discussion about this on the flightsimulator.com forums with a link to a useful video tutorial too:

https://forums.flightsimulator.com/t/cabin-differential-warning-on-tbm-930/138209/7

Tim Wright "The older I get, the better I was..."

Xbox Series X, Asus Prime H510M-K, Intel Core i5-11400F 4.40GHz, 16Gb DDR4 3200, 2TB WD Black NVME SSD, 1TB Samsung SATA SSD

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Thanks Tiger Just looked it could be a case of

 

"It is actually pretty realistic. Out climbing the pressurization rate. However I think this is a bit more sensitive than real life."

Edited by daspinall

ASRock X570 TAICHI Mother Board

AMD Ryzen 9 3900X 3.79 GHz *Overclocked*

Corsair 240mm H100i ELITE CAPELLIX RGB Intel/AMD CPU Liquid Cooler

Corsair DOMINATOR PLATINUM RGB 64GB 3600MHz *Overclocked*

MSI NVIDIA GeForce RTX 3090 Ti 24GB SUPRIM X Ampere.

1000W PSU. Samsung 870 EVO 2TB SSD. HP Reverb G2 + Oculus Quest 2

Samsung Odyssey G9 C49G95TSSR - QLED monitor - curved - 49" - 5120 x 1440 Dual Quad HD @ 240 Hz

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Ah, but if you read on in that thread, there's a link to an actual TBM manual in which:

 

"on page 5.4.1 you can find the CABIN PRESSURIZATION ENVELOPE chart which matches the simulator’s characteristics very well (chart shows 9350 equiv. at FL310 ±500’) which is about bang on."

 

"Interesting Information:

 

In flight, the GASC controls the opening of the OFV in order to reach the automatic

computed cabin altitude. The ”BLEED” switch allows to select 2 pressurization

modes :

 

if set to AUTO, the GASC controls the cabin altitude rate of change in order to

optimize comfort and avoid reaching maximum ∆P or negative ∆P

 

if set to MAX DIFF, the cabin altitude is minimized throughout the flight. For

airplane altitudes below 13500 ft, this results in cabin altitudes that could be as

low as 0 ft."

 

So, setting the BLEED switch to Auto would seem to be the answer.

Tim Wright "The older I get, the better I was..."

Xbox Series X, Asus Prime H510M-K, Intel Core i5-11400F 4.40GHz, 16Gb DDR4 3200, 2TB WD Black NVME SSD, 1TB Samsung SATA SSD

NVidia RTX3060 Ti 8Gb, Logitech Flight Yoke System, CH Pro Pedals, Acer K272HL 27", Windows 11 Home x64

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Again thanks Tiger for your help I will have a good look at it later tonight...

ASRock X570 TAICHI Mother Board

AMD Ryzen 9 3900X 3.79 GHz *Overclocked*

Corsair 240mm H100i ELITE CAPELLIX RGB Intel/AMD CPU Liquid Cooler

Corsair DOMINATOR PLATINUM RGB 64GB 3600MHz *Overclocked*

MSI NVIDIA GeForce RTX 3090 Ti 24GB SUPRIM X Ampere.

1000W PSU. Samsung 870 EVO 2TB SSD. HP Reverb G2 + Oculus Quest 2

Samsung Odyssey G9 C49G95TSSR - QLED monitor - curved - 49" - 5120 x 1440 Dual Quad HD @ 240 Hz

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