
Hi
Have you try with this snorkel :
C:\Ubisoft\Silent Hunter 5\data\Submarine\NSS_Uboat7c\Submarine Parts\Room_EXT - Snorkle + Anim.GR2
and why not merge the snorkel in a .prt ( i have see the torpedo annim in

) other in .lnx ( links

)
and i think snorkel is not a sensor

, but just an object with annimation
I want Granny SDK