--- a/src/engine_type.h	Tue May 27 00:50:55 2008 +0000
+++ b/src/engine_type.h	Tue Jun 17 10:32:49 2008 +0000
@@ -14,11 +14,8 @@
 #include "player_type.h"
 #include "strings_type.h"
 
-#include <vector>
-
 typedef uint16 EngineID;
 typedef uint16 EngineRenewID;
-typedef std::vector<EngineID> EngineList; ///< engine list type
 
 struct Engine;
 
@@ -123,7 +120,7 @@
 	Date base_intro;
 	Year lifelength;
 	Year base_life;
-	byte unk2;         ///< flag for carriage(bit 7) and decay speed(bits0..6)
+	byte decay_speed;
 	byte load_amount;
 	byte climates;
 	uint32 refit_mask;