Backported C408 Cargo CG Reversed

Bug Reporting Hub Aircraft & Systems
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1

ISSUE DESCRIPTION

Description of the issue:
When loading cargo in the back of the '20 version of the C408, the CG moves forward in stead of back as the load is increased

FREQUENCY OF ISSUE

How often does this occur for you?
Every single time

REPRODUCTION STEPS

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

  1. Pick the C408 Cargo and open the W/B balance menu

  2. Add weight

  3. Watch the CG go the wrong way

YOUR SETTINGS

Not relevant to this issue, but posted in my profile.

MEDIA

Microsoft Flight Simulator Screenshot 2025.11.14 - 17.01.11.59
Microsoft Flight Simulator Screenshot 2025.11.14 - 17.01.11.592824Ă—1593 256 KB

Microsoft Flight Simulator Screenshot 2025.11.14 - 17.03.57.14
Microsoft Flight Simulator Screenshot 2025.11.14 - 17.03.57.142824Ă—1593 257 KB
2 Likes
2

I wonder what stations those are? If that’s the cargo version there are only 3 places you could put “baggage” as opposed to “cargo”. Nose compartment, cockpit, and the aft baggage shelf in the rear of the cargo bay. The nose compartment and cockpit CG stations are forward of neutral, whereas the aft shelf is aft of neutral. Not sure if that explains what you’ve described.

3

This is the Cargo version with the containers modeled in the rear. The passenger version’s W/B menu has spots for the passengers’ weights.

4

I have a theory that if you put weight in the baggage categories one at a time and zero out the other two you will get the following outcomes:

Weight in baggage 1: CG moves forward

Weight in baggage 2: CG moves slightly less forward

Weight in baggage 3: CG moves aft

Willing to test and report back?

5

I’m afraid that’s not the case. All three move the CG forward. Here’s just the rear loaded up at far less than the max load and it sends the CG past the forward limit.

image
image2826Ă—1625 266 KB
6

Yeah that looks odd then. Increasing payload slider moves CG aft I hope?

7

It only took 42% to get out of limit.

image
image2826Ă—1625 273 KB

I will say this - manually adjusting the empty CG position slider will bring it back into within limits, but that feels like cheating. In the real world, I don’t know of any aircraft that has the ability to shift its CG on a whim. I think some automotive race classes have that ability to adjust cornering, but that doesn’t help me here…

8

Can replicate, adding weight to either one of the 3 baggage positions for the C408 cargo moves the CG forward.

1 Like