no you just remove the -
didnt realise the coaster was too - will check that now thanx
EDIT
No mine was ok but notice the .sil for the NHPB is a tug !!!!
A little OT but if that was made from the tug maybe thats why my NASW ( Anti sub trawler ) made from the tug doesnt work in the missin editor but does in the museum - well I cant see it anyway