Aero VodoChody L-39 Albatros not climbing above 20K ft + fuel consumption issues

MajorGEAB · November 1, 2025, 8:07pm

ISSUE DESCRIPTION

Description of the issue: Airplane can’t climb over 15K-20K feet, depending on the density altitude, speed drops to stall levels at max power. I tried it with manual cold start and also using Ctrl+E, just to see if I missed something, also tried with half fuel and 100%. Another thing I noticed, it does not burn fuel at all. I climbed close to 20K, flew like 20 mins max power and no fuel consumption.

FREQUENCY OF ISSUE

How often does this occur for you (Example: Just once, every time on sim load, intermittently)? Every time

REPRODUCTION STEPS

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

Just take off from any airport and try to climb above

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:

[PC Only] Are you using Developer Mode or have you made any changes to it? Dev Mode in Steam, MSFS 2024

CommonBloom31 · November 1, 2025, 11:58pm

RPM also drops with altitude (in a Jet!) and fuel from her wingtip tanks is not usable.

MajorGEAB · November 2, 2025, 12:06am

Not sure about the fuel wingtip tanks, I flew 40 min and 0 fuel consumption, started with 100%, landed with 100%.

CommonBloom31 · November 2, 2025, 12:09am

Did you check your realism settings, may be the went somehow to “unlimited fuel”?

On my side fuel is going out of main tanks but not from wingtips. But I’ll check again, did not fly this bird last 2-3 month

DementedCorn327 · November 2, 2025, 12:09am

Have you disabled unlimited fuel in assistance settings ?

MajorGEAB · November 2, 2025, 3:11am

Yes, my assistance is all off. Other planes consume fuel ok

DementedCorn327 · November 2, 2025, 3:16am

See that report about an issue with fuel consumption: L-39 has wildly unrealistic fuel consumption rate in MSFS 2024 on Xbox. It does not say that there is no consumption at all but it is too low. Is that could be your case too ?

I have moved your report to the User Support Hub since it contains 2 issues and as per the Bug Reporting Hub category guidelines only 1 bug per report is permitted:

Regarding the climbing issue feel free to create a new report only for this.
Regarding the fuel consumption issue, if the same than above mentioned report, please contribute there, if not please create a separate report.