diff --git a/info/Infrastructure.t b/info/Infrastructure.t
index e83cb3aa..42c76ef4 100644
--- a/info/Infrastructure.t
+++ b/info/Infrastructure.t
@@ -53,10 +53,10 @@ Use the "improve" command to improve the infrastructure of your sectors.
 To find out the required amounts of materials, mobility, and money
 use the "show sect build" command.
 .s1
-Also, defensive infrastructure is not always improvable.  See the version
-info to see if the DEFENSE_INFRA option is enabled or not.  If it is not
-enabled, the defense infrastructure of the sector is always the same
-as the efficiency of the sector.  If it is enabled, you must improve your
-sectors defensive values using the "improve" command.
+Also, defensive infrastructure is not always improvable.  See "show
+sector b" to find out.  If it is not enabled, the defense
+infrastructure of the sector is always the same as the efficiency of
+the sector.  If it is enabled, you must improve your sectors defensive
+values using the "improve" command.
 .s1
 .SA "improve, sinfrastructure, Mobility, Sectors"
diff --git a/info/Ship-types.t b/info/Ship-types.t
index d89dd175..a1a1f0de 100644
--- a/info/Ship-types.t
+++ b/info/Ship-types.t
@@ -212,11 +212,9 @@ land units can carry up to two spies.
 .L pln
 The number of 'light' planes the ship can carry.
 .L hel
-The number of helicopters the ship can carry. (If the SHIPCHOPPER option is
-enabled)
+The number of helicopters the ship can carry.
 .L xpl
-The number of extra-light planes the ship can carry. (If the XLIGHT option is
-enabled)
+The number of extra-light planes the ship can carry.
 .in
 .s1
 Each ship can carry a certain amount of products and has certain