Observations 744 Update

[Orlaam 306]

These may, or may not, be bugs...FYI.

I can post screens if needed.  The standby analog altimeter displays a slightly different altitude than the plane.  I was at FL390 and the standby displayed FL39150.  Both obviously set to 29.92 (synced).

The MCP LCD digits are sometimes the same color as the older non-LCD digits (not blueish white but that dull yellow color).  Maybe a graphics glitch in my computer (e.g. driver)?  I don't have this kind of issue anywhere else in any other plane or program though.  If I turn the MCP LCD on and off a couple times it sets it to the correct color. 

The RAAS no longer shows up in the FSX menu or even loads in the freighter model.  Someone said it works on the PAX version and selected other models.  Still an option in the FMC either way.

Also, this may totally be my fault, but I was unable to load Wx from Active Sky.  I predicted some precip on the route from ORD to ATL, but I didn't see it.  Nevertheless, I wasn't able to link the COMM to load winds.  It simply said NO COMM and gave no option to load weather for the route or descent.  I need to look at the settings again in the PDF maybe.  I saw an option to create a WX PLN file and don't recall what that is for.  I just know it always worked before.

 

[mfrantz 45]

3 hours ago, Orlaam said:

I can post screens if needed.  The standby analog altimeter displays a slightly different altitude than the plane

This is a feature, not a bug (standby altimeter accuracy variations)

3 hours ago, Orlaam said:

It simply said NO COMM and gave no option to load weather for the route or descent

You have to login to ACARS first to make Datalink available. Check the introduction document, it is all explained in detail.

[JRBarrett 3,034]

4 hours ago, Orlaam said:

These may, or may not, be bugs...FYI.

I can post screens if needed.  The standby analog altimeter displays a slightly different altitude than the plane.  I was at FL390 and the standby displayed FL39150.  Both obviously set to 29.92 (synced).

 

This is common in real aircraft. An analog standby altimeter is not required to meet the stringent RVSM accuracy specifications that apply to the main digital air data computers that provide altitude to the primary flight displays.

The air data computers used in RVSM airspace must have an error of no more than +/- 80 feet at altitudes between FL 290 and FL 410.

That is the maximum allowable error under FAA regulations. In practice, RVSM digital air data computers are often accurate to within +/- 10 feet from sea level right up to their maximum certified altitude.

The amount of allowable error for an analog standby altimeter varies with altitude. At sea level it must be accurate to within 20 feet, but at 40,000 feet it is permitted to have an error of as much as 230 feet

[Orlaam 306]

Ok thanks!