SITL on Linux looks improved on JSBSim I got it to run the Rascal but not the Boing314 scripts to prepare are through the docs
aircraft I coppied from jsbsim aircraft folder to the same folder as the Rascal and put Engines folder inside Boeing314 HamiltonStd6243A-3.xml WrightGR-2600.xml
The first waypoint should have takeoff.
-w was needed
arm remove checks