Cessna 404 Titian critical altitude incorrect

Bug Reporting Hub Aircraft & Systems
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ISSUE DESCRIPTION

Description of the issue: The critical altitude on the Cessna 404 is way too low at present. The actual aircraft has a critical altitude of 16,000ft (so the engines should be able to maintain a set manifold pressure up to that altitude), but in the FS2024 version, the manifold pressure begins dropping almost immediately after takeoff, so it appears that the critical altitude is set to zero in a .cfg file somewhere.

If applicable, which aircraft is experiencing this issue: Cessna 404 Titan

[PC Only] Did you remove all your community mods/add-ons? If yes, are you still experiencing the issue?

Yes, issue is independent of anything else installed.

FREQUENCY OF ISSUE

always

REPRODUCTION STEPS

Please list clear steps you took in order to help our test team reproduce the same issue:

1.Load flight with Cessna 404
2.Take off
3.Observe manifold pressure begins falling very early during the climb

YOUR SETTINGS

If the issue still occurs with no mods and add-ons, please continue to report your issue. If not, please move this post to the User Support Hub.

What peripherals are you using, if relevant: N/A

[PC Only] Are you using Developer Mode or have you made any changes to it?

No

[PC, MSFS 2020 Only] Are you using DX11 or DX12?

N/A

[PC Only] What GPU (Graphics Card) do you use?
N/A

[PC Only] What other relevant PC specs can you share?
N/A

[END OF FIRST USER REPORT]

:loudspeaker: For anyone who wants to contribute on this issue, Click on the button below to use this template:

Do you have the same issue if you follow the OP’s steps to reproduce it?
•

Provide extra information to complete the original description of the issue:
•

If relevant, provide additional screenshots/video:
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2

This definitely needs looking at, I don’t know much about the critical altitude of a Cessna 404 Titan per se but I’m pretty sure I should be able to get more than 21 inches out of the engines at 14000 Ft. I don’t want to climb higher in it as the performance will just be awful, it’s not great at 14000. Definitely something wrong with the engine behavior.

1 Like
3

Do you have the same issue if you follow the OP’s steps to reproduce it?
• yes

Provide extra information to complete the original description of the issue:
• manifold pressure drops and must reduce condition/mixture lever to maintain power on climb. even, with that, the climb rate drops off in the mid-teens. I might be able to reach 16,000 or 18,000’ but not much higher.

If relevant, provide additional screenshots/video:
•

4

I used to fly 404s 10 years ago. The critical altitude is 16,000ft. Up to this altitude, the full 375 hp should be possible, at 2235rpm and 40.0 in/hg of manifold pressure.

1 Like
5

I flew it yesterday in 1.3.22.0 (see Performance Survey Xbox if interested) on a nice cold NE US afternoon to 11,500’ and stopped the climb right there because that was the altitude where I could maintain 25" MP. With all its flaws I like it, but I treat it more like a normally aspirated twin Cessna that just happens to have a reduction geared powertrain. When the C414AW is fully 24 compatible and/or reverse compatible but available through MP, the Titan will be history for me. Golden Eagle anyone? Cheers!