Shopping on line can be easy, simple and save you lots of money. It can also take a lot of your time, frustrate you, and result in unwanted purchases. Now the same can be said for regular high street shopping, but with the vast opportunity presented by the Internet it will pay you to spend a few minutes reading this and understanding how to better optimize your Jet Aircraft shopping experience:
1. Compare - without doubt the biggest advantage that the Jet Aircraft offers shoppers today is the ability to compare thousands of Jet Aircraft at a time. This is a great thing, but not necessarily all the time! Too much can be daunting at times so take advantage of the great comparison sites and where possible let them do the hard work for you.
2. Research - if it has been said it will be on the internet. Ignorance is no longer a justifiable reason for buying the wrong thing. Take the time to research in detail everything that you could possible want to know about
3. Testimonials - don't know anybody that has bought a Jet Aircraft? Wrong! If the Jet Aircraft is good the internet will let you know. Use the Internet as a friend and get testimonials before you buy.
4. Questions - Got a question about Jet Aircraft then search the Forums, FAQ's, Blogs etc. Don't be afraid to ask .....
5. Reputation - Never heard of the company selling Jet Aircraft? Don't worry, no reason why you should know every company in the world, but you know someone that does! Use the internet to find out what people are saying about Jet Aircraft and build up a picture of their reputation for sales, returns, customer service, delivery etc.
6. Returns - still worried that even after all of the above your Jet Aircraft wont be what you want? Check out the returns policy. There is so much competition now that someone, somewhere is bound to offer the terms that you are comfortable with.
7. Feedback - happy with your Jet Aircraft then let people know, after all you are depending on others people input in your buying decision, so why not give a little back.
8. Security - check for the yellow padlock on the Jet Aircraft site before you buy, and the s after http:/ /i.e. https:// = a secure site
9. Contact - got a question about Jet Aircraft, or want to leave a comment then check out the sites contact page. Reputable companies have them and respond.
10. Payment - ready to pay for your Jet Aircraft, then use your credit card or PayPal! Be aware of companies that don't accept them, there may be genuine reasons but given the huge amount of choice you have when buying online there is no reason at all not to buy via credit card or PayPal.
Jet aircraft are
aircraft with
jet engines. Unlike propeller-powered aircraft, jet aircraft normally fly at altitudes as high as 10,000 to 15,000 meters, about 33,000 to . At these altitudes, jet engines can achieve maximum efficiency over long distances. The engines in propeller powered aircraft achieve their maximum efficiency at much lower altitudes.
Historical examples
The first aircraft to incorporate the principles of the jet engine was the
Coanda-1910, piloted by its Romanian inventor Henri Coandă in 1910. The engine of this aircraft, unlike the modern jet engine, used a Reciprocating engine rather than a turbine to drive its compressor. Unfortunately, the aircraft crashed during its first and only demonstration, however remaining mostly intact.
The first true turbine-equipped jetplane was the Heinkel He 178 (Germany), piloted by
Erich Warsitz in 1939 (
August 27, 1939).
The British flew their Gloster E.28/39 powered by
Sir Frank Whittle's turbojet on
May 15,
1941, with
Gerry Sayer as pilot. The United States, upon learning of the British work, produced the
P-59 Airacomet, with a version of the Whittle engine built by General Electric which flew on September 12, 1942 with Col L.Craigie as pilot.
The first operational jet fighter was the Messerschmitt Me 262, piloted by Fritz Wendel. It was the fastest conventional aircraft of World War II - only the rocket-powered
Messerschmitt Me 163 Komet was faster. Mass production started in 1944, too late for a decisive impact. About the same time, the United Kingdom's
Gloster Meteor made up the first operational jet fighter squadron in 1944. It was used to defend the UK against the V1 flying bomb and in ground-attack operations over Europe towards the end of the war. The Imperial Japanese Navy also developed jet aircraft in 1945, including the Nakajima J9Y, partially inspired by German designs.
On November 8,
1950, during the
Korean War, United States Air Force Lt. Russell J. Brown, flying in an
P-80_Shooting_Star, intercepted two
North Korean MiG-15s near the
Yalu River and shot them down in the first jet-to-jet dogfight in history according to USAF sources. Soviet Sources say a Mig 15 shot down a P 80.
BOAC operated the first commercial jet service, from
London to Johannesburg, in 1952 with the
de Havilland Comet jetliner.
The fastest military jet plane was the
SR-71 Blackbird at Mach 3.2.
The fastest commercial jet plane was the
Tupolev Tu-144 at Mach 2.35.
Airbus A340-600 landing
Modern jets
Modern jets generally cruise at speeds of 0.75 to 0.85 Mach (speed), or 75 to 85% of the speed of sound. The speed of sound is a function of air temperature and pressure, and therefore the speed of a jet is not constant in terms of miles per hour, but varies with
Earth's atmosphere conditions. In general, modern jets fly at about 420 to 580 miles per hour or 680 to 900 km/h.
NASA and the Federal Aviation Administration have recently been promoting Very Light Jets, small
general aviation aircraft seating 4 to 8.
Other jets
Most people use the term 'jet aircraft' to denote gas turbine based airbreathing jet engines, however, both rockets and scramjets are both also propelled by jets.
The fastest airbreathing jet aircraft is the unmanned X-43 scramjet at around Mach 9-10.
The fastest manned (rocket) aircraft would be the
X-15 at Mach 6.85.
The
Space Shuttle while far faster, is not normally considered to be an aircraft during powered ascent, and the orbiter is unpowered when flying as an aircraft during reentry and landing, so is not properly considered a jet aircraft at either time.
See also
External links
- Aircraft-Info.net - Jet Aircraft
- Aircraft Speed Records
Jet aircraft are
aircraft with jet engines. Unlike
propeller-powered aircraft, jet aircraft normally fly at altitudes as high as 10,000 to 15,000 meters, about 33,000 to . At these altitudes, jet engines can achieve maximum efficiency over long distances. The engines in propeller powered aircraft achieve their maximum efficiency at much lower altitudes.
Historical examples
The first aircraft to incorporate the principles of the jet engine was the Coanda-1910, piloted by its Romanian inventor
Henri Coandă in 1910. The engine of this aircraft, unlike the modern jet engine, used a Reciprocating engine rather than a turbine to drive its compressor. Unfortunately, the aircraft crashed during its first and only demonstration, however remaining mostly intact.
The first true turbine-equipped jetplane was the
Heinkel He 178 (Germany), piloted by Erich Warsitz in 1939 (August 27,
1939).
The British flew their Gloster E.28/39 powered by Sir Frank Whittle's turbojet on May 15, 1941, with Gerry Sayer as pilot. The United States, upon learning of the British work, produced the P-59 Airacomet, with a version of the Whittle engine built by
General Electric which flew on
September 12,
1942 with Col L.Craigie as pilot.
The first operational jet fighter was the Messerschmitt Me 262, piloted by Fritz Wendel. It was the fastest conventional aircraft of World War II - only the rocket-powered
Messerschmitt Me 163 Komet was faster. Mass production started in 1944, too late for a decisive impact. About the same time, the United Kingdom's Gloster Meteor made up the first operational jet fighter squadron in 1944. It was used to defend the UK against the V1 flying bomb and in ground-attack operations over Europe towards the end of the war. The Imperial Japanese Navy also developed jet aircraft in 1945, including the Nakajima J9Y, partially inspired by German designs.
On November 8,
1950, during the Korean War, United States Air Force Lt.
Russell J. Brown, flying in an
P-80_Shooting_Star, intercepted two
North Korean
MiG-15s near the Yalu River and shot them down in the first jet-to-jet
dogfight in history according to USAF sources. Soviet Sources say a Mig 15 shot down a P 80.
BOAC operated the first commercial jet service, from London to Johannesburg, in 1952 with the de Havilland Comet
jetliner.
The fastest military jet plane was the
SR-71 Blackbird at Mach 3.2.
The fastest commercial jet plane was the
Tupolev Tu-144 at Mach 2.35.
Airbus A340-600 landing
Modern jets
Modern jets generally cruise at speeds of 0.75 to 0.85
Mach (speed), or 75 to 85% of the
speed of sound. The speed of sound is a function of air temperature and pressure, and therefore the speed of a jet is not constant in terms of miles per hour, but varies with
Earth's atmosphere conditions. In general, modern jets fly at about 420 to 580 miles per hour or 680 to 900 km/h.
NASA and the Federal Aviation Administration have recently been promoting Very Light Jets, small general aviation aircraft seating 4 to 8.
Other jets
Most people use the term 'jet aircraft' to denote gas turbine based airbreathing jet engines, however, both rockets and scramjets are both also propelled by jets.
The fastest airbreathing jet aircraft is the unmanned
X-43 scramjet at around Mach 9-10.
The fastest manned (rocket) aircraft would be the
X-15 at Mach 6.85.
The Space Shuttle while far faster, is not normally considered to be an aircraft during powered ascent, and the orbiter is unpowered when flying as an aircraft during reentry and landing, so is not properly considered a jet aircraft at either time.
See also
External links
- Aircraft-Info.net - Jet Aircraft
- Aircraft Speed Records
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Jet aircraft - Wikipedia, the free encyclopedia
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