FSX/P3D. Jared is showing off a few more development previews of the Orbx Vans RV-4 expansion package which among other things, will include some very sexy liveries. I am a fan of Vans aircraft and am a bit heartbroken that Baytower Studios isn't around anymore. They did a smashing job on the RV-7. If you have the RV-7, get the RV-4 too. No doubt they both will look great next to each other in your hanger... or your hard drive.