currently untested, might have to use lower-level call() API instead of load_nasal() here https://forum.flightgear.org/viewtopic.php?f=6&t=36755&start=45#p359849
(currently untested, might have to use lower-level call() API instead of load_nasal() here https://forum.flightgear.org/viewtopic.php?f=6&t=36755&start=45#p359849)