diff --git a/libraries/SITL/SIM_Frame.cpp b/libraries/SITL/SIM_Frame.cpp
index 8f3810b360..9575e55e5c 100644
--- a/libraries/SITL/SIM_Frame.cpp
+++ b/libraries/SITL/SIM_Frame.cpp
@@ -88,14 +88,14 @@ static const Motor tri_motors[] =
 {
     Motor(AP_MOTORS_MOT_1,   60, AP_MOTORS_MATRIX_YAW_FACTOR_CCW, 1),
     Motor(AP_MOTORS_MOT_2,  -60, AP_MOTORS_MATRIX_YAW_FACTOR_CCW, 3),
-    Motor(AP_MOTORS_MOT_4,  180, AP_MOTORS_MATRIX_YAW_FACTOR_CCW, 2, AP_MOTORS_MOT_7, -45, 45, -1, 0, 0),
+    Motor(AP_MOTORS_MOT_4,  180, AP_MOTORS_MATRIX_YAW_FACTOR_CCW, 2, AP_MOTORS_MOT_7, 60, -60, -1, 0, 0),
 };
 
 static const Motor tilttri_motors[] =
 {
     Motor(AP_MOTORS_MOT_1,   60, AP_MOTORS_MATRIX_YAW_FACTOR_CCW, 1, -1, 0, 0, AP_MOTORS_MOT_8, 0, -90),
     Motor(AP_MOTORS_MOT_2,  -60, AP_MOTORS_MATRIX_YAW_FACTOR_CW,  3, -1, 0, 0, AP_MOTORS_MOT_8, 0, -90),
-    Motor(AP_MOTORS_MOT_4,  180, AP_MOTORS_MATRIX_YAW_FACTOR_CCW, 2, AP_MOTORS_MOT_7, -45, 45, -1, 0, 0),
+    Motor(AP_MOTORS_MOT_4,  180, AP_MOTORS_MATRIX_YAW_FACTOR_CCW, 2, AP_MOTORS_MOT_7, 60, -60, -1, 0, 0),
 };
 
 static const Motor y6_motors[] =