is that on the ground or in the air? i've never heard of this before.
the SF-25C won't work in v1.06 as there is no combustion engine modelling. however there is in v1.07 (the keystrokes are hidden, see the v1.07 builds thread
). It will be in beta for a while as i try to get it performing ok.
once SW v1.07 is out of beta i will make sure the K13 is complete & release it from beta, but it will be for v1.07 only. if you want to know more about v1.07 see the threads in the general section of the forum, but i don't have any problems with it.