Fx Vision Jet G3000 density altitude

MSFS2020 Live weather

Fx Vision Jet

I was at KDTW today (field elevation 645 feet) and noticed the Density Altitude is wrong (real high).

Are others seeing the same (screenshot)?

Is MSFS2024 showing the same?

14 minutes ago, vonmar said:

I was at KDTW today (field elevation 645 feet) and noticed the Density Altitude is wrong (real high).

The displayed DA seems to be allright. Depending when the image was taken. Using current METAR as base.

1. Find pressure altitude (4hpa below QNH)

2. From there apply rule of thumb correction of 120 x ISA dev

525* + (120*11)= 1.845ft Density Altitude.

*That is PA derived from field elevation of 645ft. Current QNH puts PA 120ft below field elevation, ergo 525ft. 1 hpa=30ft for simplicity....

11 minutes ago, SAS443 said:

The displayed DA seems to be allright. Depending when the image was taken. Using current METAR as base.

1. Find pressure altitude (4hpa below QNH)

2. From there apply rule of thumb correction of 120 x ISA dev

525* + (120*11)= 1.845ft Density Altitude.

*That is PA derived from field elevation of 645ft. Current QNH puts PA 120ft below field elevation, ergo 525ft. 1 hpa=30ft for simplicity....

Hello,

Thanks for the reply. I had just now checked DA.

What is your 1.845ft Density Altitude (meaning)?

Just to verify what is the DA you see in my screenshot?

Edited 13 hours ago13 hr by vonmar

It looks to me like your density altitude is 1633 ft.

With an outside temperature of 23C, and a field elevation of 645 ft, a density altitude of 1633 ft would correspond to an altimeter setting of 30.05 inHg, which is pretty normal.

Edited 13 hours ago13 hr by prolixindec

13 minutes ago, prolixindec said:

It looks to me like your density altitude is 1633 ft.

With an outside temperature of 23C, and a field elevation of 645 ft, a density altitude of 1633 ft would correspond to an altimeter setting of 30.05 inHg, which is pretty normal.

Ok,

Thanks for the follow up.

I put you values into an electronic E6B.

The result is PALT 525.

So, is there another conversion step?

Edit:

You all are correct.

The Density altitude was displayed on the bottom of the E6B display and I missed it.

Edited 13 hours ago13 hr by vonmar

5 minutes ago, vonmar said:

So, is there another conversion step?

yes. temperature.

I posted the rule of thumb above.

3 minutes ago, SAS443 said:

yes. temperature.

I posted the rule of thumb above.

Ok thanks.

You were correct.