Helicopter Moves Very Slowly on Ground

[MSFS 2024] Bug Reports Aircraft
1

Version: 1.7.35.0

Frequency: Consistently

Severity: Low

Context: MBB Bo 105 helicopter addon, issue appears in both project and community build

Bug description:

Hi there,

Our Bo 105 helicopter moves backwards VERY slowly when on the ground. Please see this recording to understand the issue: https://youtu.be/_maMs8hlssI

Initial suspects were (1) wind and (2) contact points.

  1. I have verified that wind/gusts do not affect this movement. The speed and occurance of the movement happens just the same at 0 kts and 50 kts of wind.
  2. This helicopter does not have any wheel contact points, so there should not be any friction coefficients at play here. All we have is skids and scrape points.

I’m not sure what else can cause this, any ideas? Thanks very much.

Repro steps: Spawn with MBB Bo 105 addon on ground, observe

2

Hello @stratoware

This is an issue with your contact points configuration.
The “Wheels” debug shows only ~40% of the aircraft weight is supported by your skids. The rest doesn’t show.
If I remove all your contact points except the “skid” named ones, this reaches 100% and the helo is no longer sliding.

The culprits are point.1 and .2 from the flight_model.cfg located in your common folder:

image
image1582×748 428 KB

Regards,
Sylvain

3

Mighty helpful, thank you so much Sylvain!

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