--- a/src/newgrf.cpp	Wed Jan 09 18:35:18 2008 +0000
+++ b/src/newgrf.cpp	Wed Jan 09 20:23:12 2008 +0000
@@ -2842,14 +2842,7 @@
 			}
 
 			if (wagover) {
-				/* If the ID for this action 3 is the same as the vehicle ID,
- * this indicates we have a helicopter rotor override. */
-				if (feature == GSF_AIRCRAFT && engine == last_engines[i]) {
-					SetRotorOverrideSprites(engine, _cur_grffile->spritegroups[groupid]);
-				} else {
-					/* TODO: No multiple cargo types per vehicle yet. --pasky */
-					SetWagonOverrideSprites(engine, CT_DEFAULT, _cur_grffile->spritegroups[groupid], last_engines, last_engines_count);
-				}
+				SetWagonOverrideSprites(engine, CT_DEFAULT, _cur_grffile->spritegroups[groupid], last_engines, last_engines_count);
 			} else {
 				SetCustomEngineSprites(engine, CT_DEFAULT, _cur_grffile->spritegroups[groupid]);
 				SetEngineGRF(engine, _cur_grffile);
@@ -5085,7 +5078,6 @@
 
 	/* Unload sprite group data */
 	UnloadWagonOverrides();
-	UnloadRotorOverrideSprites();
 	UnloadCustomEngineSprites();
 	UnloadCustomEngineNames();
 	ResetEngineListOrder();

--- a/src/newgrf_engine.cpp	Wed Jan 09 18:35:18 2008 +0000
+++ b/src/newgrf_engine.cpp	Wed Jan 09 20:23:12 2008 +0000
@@ -125,33 +125,6 @@
 	memset(_engine_grf, 0, sizeof(_engine_grf));
 }
 
-static const SpriteGroup *heli_rotor_custom_sprites[NUM_AIRCRAFT_ENGINES];
-
-/** Load a rotor override sprite group for an aircraft */
-void SetRotorOverrideSprites(EngineID engine, const SpriteGroup *group)
-{
-	assert(engine >= AIRCRAFT_ENGINES_INDEX);
-	assert(engine < AIRCRAFT_ENGINES_INDEX + NUM_AIRCRAFT_ENGINES);
-
-	if (heli_rotor_custom_sprites[engine - AIRCRAFT_ENGINES_INDEX] != NULL) {
-		grfmsg(6, "SetRotorOverrideSprites: engine %d already has group -- replacing.", engine);
-	}
-	heli_rotor_custom_sprites[engine - AIRCRAFT_ENGINES_INDEX] = group;
-}
-
-/** Unload all rotor override sprite groups */
-void UnloadRotorOverrideSprites()
-{
-	EngineID engine;
-
-	/* Starting at AIRCRAFT_ENGINES_INDEX may seem pointless, but it means
-	 * the context of EngineID is correct */
-	for (engine = AIRCRAFT_ENGINES_INDEX; engine < AIRCRAFT_ENGINES_INDEX + NUM_AIRCRAFT_ENGINES; engine++) {
-		heli_rotor_custom_sprites[engine - AIRCRAFT_ENGINES_INDEX] = NULL;
-	}
-}
-
-
 /**
  * Tie a GRFFile entry to an engine, to allow us to retrieve GRF parameters
  * etc during a game.
@@ -898,7 +871,7 @@
 
 	object.info_view = info_view;
 
-	group = heli_rotor_custom_sprites[engine - AIRCRAFT_ENGINES_INDEX];
+	group = GetWagonOverrideSpriteSet(engine, CT_DEFAULT, engine);
 	group = Resolve(group, &object);
 
 	if (group == NULL || group->type != SGT_RESULT) return 0;

--- a/src/newgrf_engine.h	Wed Jan 09 18:35:18 2008 +0000
+++ b/src/newgrf_engine.h	Wed Jan 09 20:23:12 2008 +0000
@@ -16,7 +16,6 @@
 void SetWagonOverrideSprites(EngineID engine, CargoID cargo, const struct SpriteGroup *group, EngineID *train_id, uint trains);
 const SpriteGroup *GetWagonOverrideSpriteSet(EngineID engine, CargoID cargo, EngineID overriding_engine);
 void SetCustomEngineSprites(EngineID engine, byte cargo, const struct SpriteGroup *group);
-void SetRotorOverrideSprites(EngineID engine, const struct SpriteGroup *group);
 SpriteID GetCustomEngineSprite(EngineID engine, const Vehicle* v, Direction direction);
 SpriteID GetRotorOverrideSprite(EngineID engine, const Vehicle* v, bool info_view);
 #define GetCustomRotorSprite(v, i) GetRotorOverrideSprite(v->engine_type, v, i)
@@ -58,7 +57,6 @@
 StringID GetCustomEngineName(EngineID engine);
 
 void UnloadWagonOverrides();
-void UnloadRotorOverrideSprites();
 void UnloadCustomEngineSprites();
 void UnloadCustomEngineNames();