diff --git a/ROMFS/px4fmu_common/mixers/quad_x_vtol.main.mix b/ROMFS/px4fmu_common/mixers/quad_x_vtol.main.mix
new file mode 100644
index 0000000000..4fd323353a
--- /dev/null
+++ b/ROMFS/px4fmu_common/mixers/quad_x_vtol.main.mix
@@ -0,0 +1,18 @@
+Mixer for Tailsitter with x motor configuration and elevons
+===========================================================
+
+This file defines a single mixer for tailsitter with motors in X configuration.  All controls
+are mixed 100%.
+
+R: 4x 10000 10000 10000 0
+
+#mixer for the elevons
+M: 2
+O:      10000  10000      0 -10000  10000
+S: 1 0  10000  10000      0 -10000  10000
+S: 1 1  10000  10000      0 -10000  10000
+
+M: 2
+O:       10000   10000    0 -10000  10000
+S: 1 0   10000   10000    0 -10000  10000
+S: 1 1  -10000  -10000    0 -10000  10000