diff --git a/src/maneuver.cpp b/src/maneuver.cpp
index fe6da7c..3e96a58 100644
--- a/src/maneuver.cpp
+++ b/src/maneuver.cpp
@@ -123,19 +123,6 @@ static bool angle_between(double current, double next, double target) {
     }
 }
 
-// Propagate orbital state forward by dt and return new position/velocity
-static void propagate_state_by_dt(OrbitalElements elements, double parent_mass, double dt,
-                                   Vec3* out_r, Vec3* out_v, Vec3* out_h,
-                                   Vec3* out_e_vec, double* out_e_mag) {
-    OrbitalElements future_elements = propagate_orbital_elements(elements, dt, parent_mass);
-    orbital_elements_to_cartesian(future_elements, parent_mass, out_r, out_v);
-
-    *out_h = vec3_cross(*out_r, *out_v);
-    double mu = G * parent_mass;
-    *out_e_vec = calculate_eccentricity_vector(*out_r, *out_v, *out_h, mu);
-    *out_e_mag = vec3_magnitude(*out_e_vec);
-}
-
 bool check_maneuver_trigger(Maneuver* maneuver, Spacecraft* craft, SimulationState* sim) {
     switch (maneuver->trigger_type) {
         case TRIGGER_TIME:
@@ -170,11 +157,12 @@ bool check_maneuver_trigger(Maneuver* maneuver, Spacecraft* craft, SimulationSta
             if (current_diff < 0.01) return true;
 
             // Propagate orbit forward by one time step to check if we'll cross trigger
-            Vec3 future_r, future_v, future_h, future_e_vec;
-            double future_e_mag;
-            propagate_state_by_dt(craft->orbit, parent->mass, sim->dt,
-                                  &future_r, &future_v, &future_h,
-                                  &future_e_vec, &future_e_mag);
+            OrbitalElements future_elements = propagate_orbital_elements(craft->orbit, sim->dt, parent->mass);
+            Vec3 future_r, future_v;
+            orbital_elements_to_cartesian(future_elements, parent->mass, &future_r, &future_v);
+            Vec3 future_h = vec3_cross(future_r, future_v);
+            Vec3 future_e_vec = calculate_eccentricity_vector(future_r, future_v, future_h, mu);
+            double future_e_mag = vec3_magnitude(future_e_vec);
 
             double future_r_mag = vec3_magnitude(future_r);
             if (future_r_mag < 1.0) return false;