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The United States Air Force Thunderbirds are the Elite Air Demonstration Squadron for the
U.S. Air Force. Performing over 73 shows per year, the Thunderbirds show the crowd of
thousands of people what Aerobatic Maneuvers are like in real air combat. Usually the
Thunderbirds are the finale of an airshow, being the last aerial formation of an airshow.
The Thunderbirds perform radical stunts that modern day pilots use in real life combat.

The Thunderbirds were started in the 1950's were they first used the F-86 Sabre as their
Demonstration Aircraft. Since then their aerobatic maneuvers have changed so have their
aircraft. But as it is the U.S.A.F. Thunderbirds are certainly one of the best Aerobatic
Squadrons to get everyone's attention. Not only do the Thunderbirds perform at airshows,
they also do flybys at Football stadiums, with all six aircraft in formation.

 
 

Source SDK is a Source Developer's Kit, that comes with STEAM and is free.
This tool allows the user to build, and edit maps from games that are a
Half-Life 2 game or modification. The program is pretty much like the
Developer's Kit, that all Game developer's use, but is made to be a little easy
for the user to use. But Source SDK is also sometimes hard to use. Not
only can you edit maps with the program Hammer, but you can also use
the Model Viewer to edit models from Half-Life games. But most of all
Source SDK is a free program that will allow you to construct, and edit
about any map that's HL2 formatted.

Submarines started out as small boats that would dive then re-surface, during
their missions. During World War 1, Germany sought of eliminating Britain's
Supply lines, across the Atlantic. When that idea came true the first U boat
was created and thus the start of Submarine warfare would begin. during the
two year war of World War 1, Germany sent U Boats to destroy Britain's cargo
ships. But the day that would change this war, was on May 7, 1915 when U-20
mistakened the Passenger Liner for a Tanker, the commander of U-20 fired one
torpedo and hit the Liner sinking it instantly.

Within minutes the Lusitania was sunk due to a misunderstanding of war. The
same event happened when another U Boat was thought of sinking the HMSHS
Britannic was sunk in 1916. At the start of World War 2, Germany's new dictator
Adolf Hitler ordered nearly 10,000 U boats built. Many U Boats managed to stop
U.S. and British convoys but were sunk by either depth charge or Torpedo. Some
U Boats during World War 2 were captured such as U-505 and U-110 which were
sent to the surface after being hit by depth charges. U-505 was the cause of uncovering
the Enigma, and Coding Documents.

After World War 2, the U.S. decided to build a Nuclear Submarine. The first Nuclear Submarine to be commissioned was the USS Nautilus. It was proven that Nautilus had
a Reactor that would generate enough energy for a submarine to stay down underwater
for a long amount of time. Then the U.S. began building more advanced Nuclear Submarines
like the USS Permit, Scorpion, and Thresher. but in 1962 the inevitable happened the
USS Thresher with all aboard sunk during a diving drill, and no survived. The submarines hull
wasn't built for a depth of 2,000 ft. which is why the submarine sunk with all aboard.

After the Cold War ended, the U.S. began building more highly advanced Nuclear
Submarines like the USS Sea Wolf (SSN 21) in 1990. The U.S. also built the Los
Angeles Class Submarines to be able to carry VLM or (Vertical Launch Missiles).
during the Gulf War. The U.S. Navy was ordered to have all U.S. Submarines fire at
designated targets during the war. Before the start of the Gulf War, Submarines like
the Ohio class were built, the Ohio class submarine would be the longest Nuclear
Submarine ever. But the U.S. wasn't the only country to create Nuclear Submarines
Russia and China, also built submarines, but not of perfect means. The submarines Russia, and China had built were out of shape and had reactor problems. The K-19 incident was good example of Reactor Failure.





The Los Angeles Class








The Ohio Class






Ohio Class




   




Sea Wolf Class