71.   This is also the first time that the bomb guidance system, known as the Joint Direct Attack Munition, or JDAM, has been used in combat.

72.   This war will not be ended with the bravura of a high-tech guidance system directing a missile to a cave in Afghanistan.

73.   To launch its missiles, a sub would first have to retrieve the guidance systems from the attack subs.

74.   Tomahawk missiles and other Gulf War weapons have been rebuilt with internal guidance systems and links to global positioning satellites.

75.   Unlike Earhart, however, Ms. Finch was tracked by sophisticated satellite guidance systems and was trailed by another plane.

76.   Two fingers on top of the ball, a thumb under it, but no side-stabilizer in the guidance system.

77.   Up on the bridge, Lt. Commmander Jim Hruska of Brookline, Mass., navigator of the Belleau Wood, is preoccupied with electronic charts and guidance systems.

78.   Unlike Ms. Earhart, however, Ms. Finch was tracked throughout her trip by sophisticated satellite guidance systems and trailed by another plane.

79.   With its Dynamic Positioning satellite guidance system, the ship can stop and hold its position without dropping anchor, making the vessel environmentally friendly around fragile Caribbean reefs.

80.   Without the most sophisticated guidance system, its results would be hit-or-miss.