/** Knots to Miles per second */
#define SG_KT_TO_MPS 0.5144444444444444444
+/** Feet per second to Knots */
+#define SG_FPS_TO_KT 0.5924838012958962841
+
+/** Knots to Feet per second */
+#define SG_KT_TO_FPS 1.6878098571011956874
+
/** Miles per second to Miles per hour */
#define SG_MPS_TO_MPH 2.2369362920544020312