--- a/aircraft_cmd.c	Sun Mar 12 16:13:16 2006 +0000
+++ b/aircraft_cmd.c	Sun Mar 12 17:42:04 2006 +0000
@@ -110,7 +110,7 @@
 	int sprite = (6 + _aircraft_sprite[spritenum]);
 
 	if (is_custom_sprite(spritenum)) {
-		sprite = GetCustomVehicleIcon(engine, 6);
+		sprite = GetCustomVehicleIcon(engine, DIR_W);
 		if (!sprite)
 			spritenum = orig_aircraft_vehicle_info[engine - AIRCRAFT_ENGINES_INDEX].image_index;
 	}