FGAIBallistic::FGAIBallistic(object_type ot) :
FGAIBase(ot),
_height(0.0),
+_speed(0),
_ht_agl_ft(0.0),
_azimuth(0.0),
_elevation(0.0),
_rotation(0.0),
+hs(0),
_elapsed_time(0),
_aero_stabilised(false),
_drag_area(0.007),
_external_force(false),
_report_expiry(false),
_impact_report_node(fgGetNode("/ai/models/model-impact", true)),
-hs(0),
-_old_height(0),
-_speed(0)
+_old_height(0)
{
no_roll = false;