What parameter defines an helicopter?

Ok, ui_typerole=Rotorcraft in aircraft.cfg makes the simboject spawnable on
helipads But there is glitch on the worldmap: clicking on the H (heliport) as
departure, using proper Asobo helis, snaps the start location to first helipad
for that heliport Using old non-really-proper-but-still-nice “helicopters like
flying stuff” corrected with ui_typerole, clicking in the H in worldmap as
departure, the generic “RUNWAY” remains selected, and clicking in fly now the
spawn location is gonna be the “H” positioning itself:the center of the
airport Sooo… What .cfg or .flt parameter is the worldmap looking for for
correct spawn? Of course cloning ALL the .flt and .cfg from a proper Asobo
helicopter to other helicopter-like simobject fix the issue, so it must be
another parameter (not inside the aircraft.cfg)

To add to this, I have a airfield with One Cold Start, two runway starts and a
helipad and the legacy chopper work fine with the mod, however a pad with no
runways and just a helipad does not. They do work correctly with msfs