Jump to content
9Y_iamdre

Wrong Airspeed readings on PFD

Recommended Posts

Hi all, so the issue is very difficult to explain maybe if y'all see it y'all me have a better idea so I going to try my best to have it written well.

So I have been flying with PMDG 737NGX for FSX and all my airspeed reading where correct cruising at .79 which is roughly around 484kts... I recently installed the Aerosoft Airbus a319-21 first couple of flights have been successful but as of recently it's all messed up, when cruising with both aerosoft and pmdg + other freeware airplanes my plane would try to cruise at a slow speed so on the autopilot panel it will say .80 Mach speed but on the pfd I'm am literally slowing down and going .45 which is very odd and sometimes disconnecting the auto throttle helps no little so I am very sure it may be the Airbus but at the same could be something else.

 

So far I'm yet to find the issue but I am going to attempt deleting the FSX folder in %appdata%/roaming/Microsoft/fsx and see if that works .

If anyone has any other suggestions or why this is happening please leave something below this would be very great full.

 

Thanks in advance.

Also I'll post some pictures later to show what I mean 

 

Share this post


Link to post
Share on other sites

Check in FSX settings that your airspeed is set as Indicated, instead of True.


Best regards,
Luis Hernández 20px-Flag_of_Colombia.svg.png20px-Flag_of_Argentina.svg.png

Main rig: self built, AMD Ryzen 5 5600X @ 4.4 GHz, 2x8 GB DDR4-3200 RAM, Nvidia GTX1650 4 GB RTX3060 Ti 8GB, 256 GB M.2 SSD (OS+apps) + 1 TB SATA III SSD (sims) + 1 TB 7200 rpm HDD (storage), Viewsonic VX2458-MHD 1920x1080@23-144 Hz, Windows 10 Pro. Runing FSX-SE, P3D 5.3 and MSFS2020 there.

Mobile rig: ASUS TUF FX504GD (Intel i5 8300H @ 2.3-3.7 GHz; 2x8 GB DDR4-2666 RAM; Nvidia GTX 1050 2 GB; 256 GB M.2 SSD + 1 TB SATA III SSD as storage; Windows 10 Home). Running FSX-SE and FS9 there. Now reinstalling P3D 4.5.

VKB Gladiator NXT Premium Left + GNX THQ as primary controllers. Xbox 360 and eDimensional G-Pad Pro wired controllers as standby/travel.

Share this post


Link to post
Share on other sites

Yeahhh it's set to Indicated that the weird thing about it.... Definitely ain't my weather addons cause it was fine before that, I use FSrealWX and AS2016.

Share this post


Link to post
Share on other sites

An indicated airspeed of 484 knots at M 0.79 cruise is definitely not right--should be in the mid to high 200s.  That would be a reasonable groundspeed at M0.79 with ~20-30 knots of tailwind.

Check the OAT and make sure that your weather program hasn't injected a gross error, e.g. surface temps applied at cruise levels--that will cause a huge issue with indicated mach.


Bob Scott | President and CEO, AVSIM Inc
ATP Gulfstream II-III-IV-V

System: i9-10900K @ 5.2GHz on custom water loop, ASUS Maximus XII Hero, 32GB GSkill 3600MHz CAS15, EVGA RTX3090 XC3 Ultra
Samsung 55" JS8500 4K TV@30Hz,
3x NVME 2x SATA Samsung SSD, EVGA 1KW PSU, 1.2Gbps internet
SoundBlaster XFi Titanium, TOSLINK to Yamaha RX-V467 HT Rcvr, Polk/Klipsch 6" bookshelf spkrs, Polk 12" subwoofer, 12.9" iPad Pro
PFC yoke/throttle quad/pedals with custom Hall sensors, Coolermaster HAF932 case, Stream Deck XL button box

Share this post


Link to post
Share on other sites

Exactly!!!. Ok so I will check the weather engine and report back tonight to see if that's the issue I have some other things in mind that I would check also. 

Share this post


Link to post
Share on other sites

Alright folks, Scott I tried what you said and also changed my weather to be loaded directly from simconnect instead of FSUIPC and that did the job NGX not sure for airbus but ill try that one later but for now lease it working fine on the NGX. thank guys.

image1

image2

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Tom Allensworth,
    Founder of AVSIM Online


  • Flight Simulation's Premier Resource!

    AVSIM is a free service to the flight simulation community. AVSIM is staffed completely by volunteers and all funds donated to AVSIM go directly back to supporting the community. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. Thank you for your support!

    Click here for more information and to see all donations year to date.
×
×
  • Create New...