Skip to content
View in the app

A better way to browse. Learn more.

The AVSIM Community

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Erratic trim during landing

Featured Replies

Hi,
I just installed TM2 V1.30 and the V1.31 and 1.32 updates
Run it on a Win7 and FS2004 platform.
I did a test flight, everything seems normal during the flight.
Until when I was on a final approach on a APP mode for an ILS landing.
I disconnect the A/P and A/T at 1000feet, and continue the approach in manual.
I'm sure that all lights at the MCP is off.
When I did correction by using elevator input, the airplane behaves erratically weird.
It's like having a sidewind, and then its gone, and then downdraft, and then sidewind again.
Sudden nose up and nose down in a way that the weather is clear.
I could hear the trim sound, so I assume the trim corrects itself to my aileron inputs.
I never touch the trim control, but it moves itself.
The airplane landed hard on the runway, nearly touch the grass, did a go around.
Did the same approach, the same thing happened again.

I have enabled the "fix control acceleration" option on FSUIPC(v3.9) all this time, so
I assume that it doesn't have effect at all.

Please help to solve this problem, I really love the new sperry 177 on tinmouse.

If the trim is moving without you commanding it, the A/P is probably still engaged.  Sounds like you're fighting it.  Best way to disconnect the A/P is either with the disconnect on the SP177 or via the FSUIPC offset command as detailed in the docs.

 

Regards

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

Sys1 (MSFS20+24/XPlane12+11): AMD 9800X3D, water 2x240mm, MSI MPG X670E Carbon, 64GB GSkill 6000/30, nVidia RTX4090FE
Alienware AW3821DW 38" 21:9 GSync, 2x4TB Crucial T705 PCIe5 + 2x2TB Samsung 990 SSD, EVGA 1000P2 PSU, 12.9" iPad Pro
Thrustmaster TCA Boeing Yoke, TCA Airbus Sidestick, Twin TCA Airbus Throttle quads, PFC Cirrus Pedals, Coolermaster HAF932 case

Sys2 (P3Dv5/v4): i9-13900KS, water 2x360mm, ASUS Z790 Hero, 32GB GSkill 7800MHz CAS36, ASUS RTX4090
Samsung 55" JS8500 4K TV@60Hz,
3x 2TB WD SN850X 1x 4TB Crucial P3 M.2 NVME SSD, EVGA 1600T2 PSU
Fiber link to Yamaha RX-V467 Home Theater Receiver, Polk/Klipsch 6" bookshelf speakers, Polk 12" subwoofer, 12.9" iPad Pro
PFC yoke/throttle quad/pedals with custom Hall sensor retrofit, Thermaltake View 71 case, Stream Deck XL button box

Sys3 (DCS/P3Dv4/ATS/ETS): AMD 7800X3D, MSI MPG X870E Carbon, Noctua NH-D15S, 64GB GSkill 6000/30, EVGA RTX3090
Alienware AW3420DW 34" 21:9 GSync, Corsair HX1000i PSU, 4TB Crucial T705 PCIe5 + 2TB Samsung 970Evo Plus,
TM TCA Officer Pack
, Saitek combat pedals, TM Warthog, TM RS300 FF wheel/pedals, Coolermaster HAF XB case

Create an account or sign in to comment

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.