In Britain, it means diddly. It means you're a male, presumably respectable. If you have no other title, then the overly-British will put esq. after your name on an envelope, etc. In America, I believe it's sometimes used after a lawyer's surname. However, I don't see it used much by U.S. lawyers.
Davit systems are most often used to lower an emergency lifeboat to the embarkation level to be boarded. Davits can also be used as man-overboard safety devices to retrieve personnel from the water. The lifeboat davit has falls (now made of wire, historically of manila rope) that are used to lower the lifeboat into the water.
Once the force from the catapult is added to the thrust of the jet, the excess force will cause the hold-back bar to release and the jet will move [2]. This is because the hold-back bar can only hold the force from the jet at full thrust, but not the additional force of the catapult. water brake system is attached to the end of the launch tube. When the pistons hit the water brake, pressure from the water in the tube forces the pistons to quickly come to a halt [7]. The pulley system then rapidly retracts the catapult so that the next aircraft can be hooked up for launch.