- FGFCS.h FGGroundReactions.h FGInertial.h FGLGear.h FGMassBalance.h \
- FGModel.h FGOutput.h FGPropagate.h FGPropulsion.h FGInput.h
+ FGFCS.h FGGroundReactions.h FGInertial.h FGLGear.h \
+ FGMassBalance.h FGBuoyantForces.h FGExternalForce.h \
+ FGModel.h FGOutput.h FGPropagate.h FGPropulsion.h FGInput.h \
+ FGExternalReactions.h FGGasCell.h