Flight Design CTSL Airspeed Indicator wrong

zefixsogi83 · November 21, 2024, 6:46am

SIM INFORMATION

This is vital information for our test team, please do not skip it or your issue may not be able to be reproduced or fixed.

Microsoft Flight Simulator 2020 or 2024:
2024
Version Build Number (Where do I locate that?):
Game Platform (Steam, Xbox, MS Store):
MS Store

ISSUE DESCRIPTION

Description of the issue:
Airspeed Indicator showing wrong speed
If applicable, which aircraft is experiencing this issue:
Flight Design CTSL
Did you remove all your community mods/add-ons? If yes, are you still experiencing the issue?

No Addons, empty Folder

FREQUENCY OF ISSUE

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

REPRODUCTION STEPS

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

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?
[PC, MSFS 2020 Only] Are you using DX11 or DX12?
[PC Only] What GPU (Graphics Card) do you use?
[PC Only] What other relevant PC specs can you share?

MEDIA

Please add a screenshot or video of the issue occurring.

[END OF FIRST USER REPORT]

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:
•

ivonakiss · November 26, 2024, 12:04pm

I can add a little to the bug, Here is as screenshot

I use the US Imperial system set in the language settings. The plane is showing kmh, and on the HUD the speed should be in mph. I did some math and it seems to me that a wrong conversion is happening on the instrument as 62 mph would be 99 kmh. The HUD is showing the correct value 98 mph and the value on the dial should be 158 kmh. A classic conversion error.
Hope this speeds it up a bit.

DT19698255 · November 27, 2024, 2:47pm

Do you have the same issue if you follow the OP’s steps to reproduce it?
• yes the same, airspeed is shown in kn, but the display is in km/h

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

If relevant, provide additional screenshots/video:
•

MojoRisen55 · November 27, 2024, 10:02pm

yep hud showing 102-110 knots. Steam gauge airspeed is 70
km/H .

MoreFly2512 · December 9, 2024, 5:33pm

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:
•

If relevant, provide additional screenshots/video:
•

ArkaVoltchek · December 9, 2024, 6:43pm

Yes, same problem, and I would add that the overspeed warning for using the flaps is incorrectly configured.

For example flaps at -12 is NOT the default setting, it is a setting only used in high speed cruise flight, the default setting should be set for flaps to 0 and we should not have any overspeed warning for this setting (and the warning seems set too low for the other flap settings, but with a speedometer that doesn’t work, I can’t be sure of this point)

NixonRedgrave · December 9, 2024, 6:46pm

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:
• It almost seems like there is an invisible pitot tube cover installed.

If relevant, provide additional screenshots/video:
•

FaXeN5742 · December 11, 2024, 8:25pm

Adding my voice as this issue was not resolved in today’s patch.

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:
•

If relevant, provide additional screenshots/video:
•

Hibblejaybob · December 17, 2024, 2:33am

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:
I experienced this issue - it is difficult to diagnose for players unaware of the this bug unless you are in career mode or are using the Full HUD. The minimal Hud lacks units so corroborates the in-cockpit gauge. In career mode, you get warned if you’re flying to fast which is how I diagnosed the airspeed gauge was broken.

The full HUD has both Knots and KPH on display making finding this bug easier.

If relevant, provide additional screenshots/video:
N/A

Raul74cz · December 30, 2024, 12:52am

The problem with the incorrect speed in the cockpit airspeed meter still persists.
In the screenshot the actual airspeed is 119 kts (bottom left), airspeed meter in the cockpit should show 220km/h. But it shows only 78km/h

MFcortezz · January 1, 2025, 9:48pm

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:
• Why cant i change the IAS to km/h instead of kts? In German UL km/h is common. But the indicator in the dash and the indicator in the HUD are not showing correct Values, the math is wrong.

Thanks for fixing this bug soon.

If relevant, provide additional screenshots/video:
•

AJD9277 · January 29, 2025, 9:45pm

Air speed indicator still not fixed on the Flight Design CTSL (xbox, series x). When flying at 115kts, the indicator is reading ~72KmH, when it should be reading 213KmH. I struggle to understand how this issue has been missed, considering it is fundamental to flying the plane.

JeansGenou62 · February 26, 2025, 10:00am

Just bought FS2024 and I saw this bug too. I used to fly with the CTSL in FS2020 and I never saw a bug like this in this version.
It is really strange that planes have not been tested….

MamaKin8902 · March 1, 2025, 5:41pm

I’ve just buy the Sim…this bug it’s still there. I use to fly the CT, even for real, the take off performance looks like exaggerate. Not in the 2020 version

AlphaMikeF · March 7, 2025, 8:05am

Is this aircraft not popular at all? I wonder because it was in career mode but has been removed locking it for anyone that has it in their fleet. I raised a bug that has 2 votes.
I deduce no one cares because no one uses it… But you guys do… So do you not use it in career?

ArkaVoltchek · March 7, 2025, 12:45pm

Tested with SU1, the airspeed indicator is still broken… They correted some bugs in the plane, but not the biggest… go figure…

Raul74cz · March 16, 2025, 1:47pm

Air speed indicator is still unusable. Even after several months of reporting, the developers have not bothered to fix this bug.
I purchased Flight Simulator three months ago to train for ultralights, but without the air speed indicator as the most important instrument, this is impossible, which is very disappointing.
■■■■, should I demand a refund?

Vibstronium · March 17, 2025, 12:48am

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:
•

If relevant, provide additional screenshots/video:
•

Raul74cz · May 20, 2025, 7:57am

This fundamental bug was not fixed even with SU2. Obviously this way of reporting is absolutely inefficient. I am not sure if they even register the problem. The developers could at least comment the problem whether we should expect it will ever be fixed.

Zadma · June 16, 2025, 6:02pm

ISSUE DESCRIPTION

Description of the issue:

The airspeed indicator of the Flight Design CTSL dramatically underreports indicated airspeed.

Did you experience this issue before you joined the Beta?

Not sure.

If applicable, which aircraft is experiencing this issue:

Flight Design CTSL (default)

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

Yes.

FREQUENCY OF ISSUE

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

Every time on sim load

REPRODUCTION STEPS

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

Select the Flight Design CTSL in Free Flight
Set the Garmin aera510 avionics screen on the right side of the instrument panel to 3D Vision
Compare the speed shown there (in kts) to the speed shown on the analog airspeed indicator (in Kmh) - converting the Garmin indicated speed from kts to Kmh should match the speed on the analog gauge; it does not.

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 Only] What GPU (Graphics Card) do you use?

AMD Radeon RX 7900 GRE

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

n/a

MEDIA

Please add a screenshot or video of the issue occurring.

Garmin indicating: ~105kts
Analog instrument indicating: ~59Kmh (should be ~194Kmh converted from kts)

[END OF FIRST USER REPORT]

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:
•