Well, you attach a hook to the tail of your aircraft (the famous "tailhook") and "trap" it on one of a series of cables set across the deck. These cables are woven from high-tensile steel wire, which are stretched across the after portion of the ship. Usually four of these cables are laid out along the deck. The first is placed at the very rear of the carrier (called the "ramp" by naval aviators); the second a few hundred feet forward of that; and so on. The last goes just behind the angle that leads off the port (left) side of the ship. This creates a box into which the pilot must fly the aircraft and plant his tailhook onto the deck.
What happens if a pilot misses the wires? Well, that is another issue entirely. CTOL carrier landing decks are angled to port (left), about 14deg off the centerline. This is so that if an aircraft fails to "trap" a wire, then it is not headed forward into a mass of parked aircraft. Instead, the aircraft is now headed forward to port. This is the reason why on every landing, as soon as they feel their wheels hit the deck, pilots slam the engine throttles to full power. Thus, if they do not feel the reassuring tug of the wire catching the hook (more of a forward slam actually), they can just fly off the forward deck (a "touch and go") and get back into the pattern for another try. This is known as a "bolter," and most naval aviators make a lot of these in their careers.
Generally, hitting the rearmost (or "number one") wire is considered dangerous, since by doing that you're risking coming in too low and possibly hitting the stem (fantail) of the carrier (which is known as a "ramp strike"). So too is catching the last one ("number four"). Because you don't have much room to regain airspeed in the event of a "bolter," you risk a stall and possible crash while trying to climb back into the pattern. Catching the number-two wire is acceptable. But catching the number-three wire (called an "OK Three" by the air crews) is optimum, for it allows maximum room from the fantail and maximum rolling distance to regain speed and energy in the event of a bolter. Catching the "number three" is evidence of great professionalism and skill. In fact, if there is not a shooting war around to test your abilities and courage, then a consistent string of "OK Three" traps is considered the best path to promotion and success for a carrier pilot.
So what comes next? You have hit an "OK Three" trap, your aircraft's tailhook has successfully caught a wire, yet you are still hurtling forward at a breathtaking speed and may fly off the forward deck edge of the "angle" at any moment if all doesn't go well. In other words, the excitement isn't over. Each end of the arresting wire runs though a mechanism in the deck down to a series of hydraulic ram buffers, which act to hold tension on the wire. When the aircraft's tailhook hits the wire, the buffers dampen the energy from the aircraft, yanking it to a rapid halt. Once the aircraft stops, the pilot retracts the hook, and is rapidly taxied out of the landing zone guided by a plane handler. While this is happening, the wires are retracted to their "ready landing" position, so that another aircraft can be landed as quickly as possible. When it is done properly, modern carriers can land an aircraft every twenty to thirty seconds.
Aircraft Structures: Controlled Crashes
Any combat aircraft is subjected to extraordinary stresses and strains. However, compared with your average Boeing 737 running between, say, Baltimore and Pittsburgh, carrier-capable aircraft have the added stresses of catapult launches and wire-caught landings that are actually "controlled crashes." That means your average carrier-capable fighter or support aircraft is going to lug around a bit more muscle in its airframes than, say, a USAF F-16 operating from a land base with a nice, long, wide, concrete runway. This added robustness of carrier aircraft (compared with their land-based counterparts) is a good thing when surface-to-air missiles and antiaircraft guns are pumping ordnance in their direction. But it also means that carrier aircraft, because of their greater structural weight, have always paid a penalty in performance, payload, and range compared with similar land-based aircraft.
This structural penalty, however, may well be becoming a thing of the past. Today, aircraft designers are armed with a growing family of non-metallic structural materials (composites, carbon-carbon, etc.), as well as new design tools, such as computer-aided design/computer-aided manufacturing (CAD/CAM) equipment. They have been finding ways to make the most recent generation of carrier aircraft light and strong, while giving them the performance to keep up with the best land-based aircraft. This is why carrier-capable aircraft like the F/A-18 Hornet have done well in export sales (Australia, Finland, and Switzerland have bought them). The Hornet gives up nothing in performance to its competitors from Lockheed Martin, Dassault-Breguet, Saab, MiG, and Sukhoi. In fact, the new generation of U.S. tactical aircraft, the JSF, may not pay any "structural" penalty at all. Current plans have all three versions (land-based, carrier-capable, and V/STOL) using the same basic structural components, which means that all three should have similar performance characteristics. Not bad for a flying machine that has to lug around the hundreds of pounds of extra structure and equipment that allow it to operate off aircraft carriers.
All of these technologies have brought carrier aircraft to their current state of the art. However, plan on seeing important changes in the next few years. For example, developments in engine technology may mean aircraft with steerable nozzles that will allow for takeoffs and landings independent of catapults and arresting wires. Whatever happens in the technology arena, count on naval aircraft designers to take advantage of every trick that will buy them a pound of payload, or a knot of speed or range. That's because it's a mean, cruel world out there these days!
Hand on the Helm: An Interview with Admiral Jay Johnson
Guiding Principals: Operational Primacy, Leadership, Teamwork, and Pride.
During the long history of the U.S. Navy, there have been many inspirational examples of individuals coming out of nowhere at the time of need to lead ships, planes, and fleets on to victory. During the American Civil War, for example, a bearded, bespectacled gnome of an officer named Lieutenant John Worden took a new and untried little ship named the Monitor into battle. When Worden faced the mighty Confederate ironclad ram Virginia at Hampton Roads in 1862, his actions with the Monitor saved the Union frigate Minnesota, the Union blockade fleet, and General George McClellan's army from destruction.[14] More importantly, his inspired use of the little turreted ironclad forever changed the course of naval design technology, and made the wooden ship obsolete forever. There are other examples.
A mere half century ago, the United States Pacific Fleet was nearly destroyed by the Japanese at Pearl Harbor. Within days of the raid that brought the United States into World War II, a gravelly-voiced, leather-faced Texan named Chester Nimitz was picked to lead what was left of the Pacific Fleet against the powerful forces of Imperial Japan. Nimitz's early Naval service (mostly spent quietly in the "pig boats" that the U.S. Navy passed off as submarines in those days) gave no indication that he was the man for the job. Nor did his later career in virtually invisible jobs at obscure (to ordinary folks) places like the Bureau of Navigation add much to that aura. When he was made CINCPAC (Commander in Chief of the Pacific), few Americans outside of his friends in the Navy even knew the man's name. With fleet morale shattered by the events at Pearl Harbor, he hardly seemed an inspiring choice.
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