This is an upgrade to the default KAPC airport in MSFS. All modifications are done using Microsoft's SDK, custom objects, and library objects.

Napa County is just north of San Francisco and is a world-famous wine region, as everyone knows. In recent years the amount of corporate traffic has steadily increased at this airport, and there is even seasonal airline service with JSX these days. 2025-26 is an exciting time at APC, as two major FBO overhauls are in progress at the airport. The old commuter terminal has also been demolished as of last year. Another update will probably be required later this year as airport projects are completed; I have tried to use the best available information.

• Custom airport objects including the new Skyservice and Atlantic FBOs, former IASCO facilities, Reach Air Medical, and CA Highway Patrol
• Custom airport static aircraft such as CHP helicopter and Cal Fire's CH-47 based at the field
• Added weather stations, nav facilities, old hangars, ramp clutter, fencing, streetlights, and landscaping
• Added 'NAPA' field identifier on taxiway Alpha
• Terrain modification to the airport property
• Modified vegetation including more trees and shrubs

Notes

1. There is limited information online about the new FBOs, so I might update them further once more photos are available

2. Custom objects are designed to give a general impression and have some imperfections here and there.

3. Did not have a chance to test much in MSFS24, but users have reported things are working well.

4. Some Microsoft WU dependencies are used. You will need KCGX, Tokyo heliport, and TNCM installed to see certain fence and light objects and KFHR for some hangar objects. Some other objects are also from other Asobo/MS sceneries.

5. I did not have a chance to redo the taxiways and parking. There are a few default taxiway lights and fuel stations in odd locations.

Installation

1. Unzip the .ZIP file 
2. Place the two indicated folders in your MSFS "community" folder in your MSFS installation location. The GA LIB contains some generic hangars I will use in other sceneries.

For some ramp objects, you will also need to download the free UK2000 library here if you don't already have it:

uk20000 Common Library Here

Happy flying!