What is the difference between 747 300 and 747 400

Its wings have a high sweep angle of The sweep also reduces the wingspan, allowing the to use existing hangars. The upper deck has a 33 seat arrangement in economy class and a 22 layout in first class. Raised above the main deck, the cockpit creates a hump. This raised cockpit allows front loading of cargo on freight variants.

The "stretched upper deck" became available as an alternative on the B variant and later as standard beginning on the The upper deck was stretched more on the The cockpit roof section also has an escape hatch from which crew can exit during the events of an emergency if they cannot do so through the cabin.

The 's maximum takeoff weight ranges from , pounds , kg for the to , lb , kg for the Its range has increased from 5, nautical miles 6, mi, 9, km on the to 8, nmi 9, mi, 14, km on the -8I. The has redundant structures along with four redundant hydraulic systems and four main landing gears each with four wheels; these provide a good spread of support on the ground and safety in case of tire blow-outs.

The main gear are redundant so that landing can be performed on two opposing landing gears if the others are not functioning properly. For transportation of spare engines, the can accommodate a non-functioning fifth-pod engine under the aircraft's port wing between the inner functioning engine and the fuselage. The was the original variant launched in The soon followed, with its launch in The was launched in and was followed by the in Ultimately, the was announced in Several versions of each variant have been produced, and many of the early variants were in production simultaneously.

The International Civil Aviation Organization ICAO classifies variants using a shortened code formed by combining the model number and the variant designator e. The first s were built with six upper deck windows three per side to accommodate upstairs lounge areas.

Later, as airlines began to use the upper deck for premium passenger seating instead of lounge space, Boeing offered a ten-window upper deck as an option. Some early s were retrofitted with the new configuration. No freighter version of this model was developed, but many s were converted into freighters.

Responding to requests from Japanese airlines for a high-capacity aircraft to serve domestic routes between major cities, Boeing developed the SR as a short-range version of the with lower fuel capacity and greater payload capability. With increased economy class seating, up to passengers could be carried in early versions and up to in later models. The type was certified by the FAA on September 26, , with the first delivery on the same day. Debuting in , the BSR also incorporated structural modifications for a high cycle-to-flying hour ratio; a related standard B model debuted in ANA operated this variant on domestic Japanese routes with or seats until retiring its last aircraft in March The B model was developed from the SR, using its stronger airframe and landing gear design.

The type had an increased fuel capacity of 48, US gal , l; 40, imp gal , allowing for a 5,nautical-mile 9, km; 5, mi range with a typical passenger payload, and an increased MTOW of , lb , kg was offered. The first B order, one aircraft for Iran Air, was announced on June 1, This aircraft first flew on June 20, , received FAA certification on August 1, , and was delivered the next day. The TehranNew York route, when launched, was the longest non-stop commercial flight in the world.

The SP is 48 feet 4 inches Fuselage sections were eliminated fore and aft of the wing, and the center section of the fuselage was redesigned to fit mating fuselage sections.

The SP's flaps used a simplified single-slotted configuration. The SP was granted a supplemental certificate on February 4, and entered service with launch customers Pan Am and Iran Air that same year. The demand for longer range aircraft with increased payload quickly led to the improved , which featured more powerful engines, increased MTOW, and greater range than the A few early s retained the three-window configuration of the on the upper deck, but most were built with a ten-window configuration on each side.

The B was the basic passenger version, with increased fuel capacity and more powerful engines; it entered service in February Range with a full passenger load started at over 5, nmi 9, km and increased to 6, nmi 11, km with later engines. Most Bs had an internally stretched upper deck, allowing for up to 16 passenger seats. It entered service in with Lufthansa. The combi aircraft model, the M, could carry freight in the rear section of the main deck via a side cargo door.

A removable partition on the main deck separated the cargo area at the rear from the passengers at the front. The M could carry up to passengers in a three-class configuration with cargo carried on the main deck. The model was also known as the Combi. A total of 10 converted s were operated by KLM. Rolls-Royce followed engine production with a launch order from British Airways for four aircraft.

The option of RBB engines was announced on June 17, A total of of the versions had been built when production ended in The features a footinch-longer 7. Before being made standard on the , the stretched upper deck was previously offered as a retrofit, and appeared on two Japanese SR aircraft. Swissair placed the first order for the on June 11, The first flew on October 5, , and the type's first delivery went to Swissair on March 23, The M features cargo capacity on the rear portion of the main deck, similar to the M, but with the stretched upper deck it can carry more passengers.

A total of 81 series aircraft were delivered, 56 for passenger use, 21 M and 4 SR versions. On December 29, , Qantas flew its last scheduled service, operating from Melbourne to Los Angeles via Auckland.

The is an improved model with increased range. It has wingtip extensions of 6 ft 1. The type also features tail fuel tanks, revised engines, and a new interior. The longer range has been used by some airlines to bypass traditional fuel stops, such as Anchorage. The was offered in passenger , freighter F , combi M , domestic D , extended range passenger ER , and extended range freighter ERF versions.

Passenger versions retain the same upper deck as the , while the freighter version does not have an extended upper deck. Winglets were not included, but they can be retrofitted. The passenger version first entered service in February with launch customer Northwest Airlines on the Minneapolis to Phoenix route.

The first BCF was redelivered in December In March , Boeing announced that it had no plans to produce further passenger versions of the Some of the last built s were delivered with Dreamliner livery along with the modern Signature interior from the Boeing A total of of the series aircraft were delivered. The Dreamlifter [] originally called the Large Cargo Freighter or LCF [] is a Boeing-designed modification of existing s to a larger configuration to ferry Dreamliner sub-assemblies.

Evergreen Aviation Technologies Corporation of Taiwan was contracted to complete modifications of s into Dreamlifters in Taoyuan. The aircraft flew for the first time on September 9, in a test flight. Boeing announced a new variant, the , on November 14, Referred to as the Advanced prior to its launch, the uses the same engine and cockpit technology as the , hence the use of the "8".

The variant is designed to be quieter, more economical, and more environmentally friendly. The 's fuselage is lengthened from to feet The F made its maiden flight on February 8, The passenger version, named Intercontinental or I, is designed to carry up to passengers in a 3-class configuration and fly more than 8, nmi 15, km at Mach 0.

As a derivative of the already common , the has the economic benefit of similar training and interchangeable parts. The first -8I was delivered in May to Lufthansa. During the late s and early s, Boeing studied the development of a shorter with three engines , to compete with the smaller Lockheed L TriStar and McDonnell Douglas DC The center engine would have been fitted in the tail with an S-duct intake similar to the L's. Overall, the trijet would have had more payload, range, and passenger capacity than both of them.

However, engineering studies showed that a major redesign of the wing would be necessary. Maintaining the same handling characteristics would be important to minimize pilot retraining. Boeing decided instead to pursue a shortened four-engine , resulting in the SP. In January , Boeing outlined preliminary studies to build a larger, ultra-long haul version named the , which would enter service in the mid- to lates. This aircraft design would have combined the advanced technology used on the with the foreshortened SP fuselage.

The aircraft was to carry passengers a range of 8, nmi 9, mi; 15, km. Boeing announced the X and X at the Farnborough Airshow. Other changes included adding more powerful engines and increasing the number of tires from two to four on the nose landing gear and from 16 to 20 on the main landing gear.

The X concept featured an increased fuselage length of 18 ft 5. As Airbus progressed with its A3XX study, Boeing offered a derivative as an alternative in ; a more modest proposal than the previous X and X that retained the 's overall wing design and add a segment at the root, increasing the span to ft The X aircraft was to carry passengers over ranges of up to 8, nmi 10, mi, 16, km. The X Stretch would be extended to ft Like its predecessor, the X family was unable to garner enough interest to justify production, and it was shelved along with the ERX in March , when Boeing announced the Sonic Cruiser concept.

The X did not make it beyond the drawing board, but the X being developed concurrently moved into production to become the ER. After the end of the X program, Boeing continued to study improvements that could be made to the The XQLR Quiet Long Range was meant to have an increased range of 7, nmi 9, mi, 14, km , with improvements to boost efficiency and reduce noise. As of July [update] , Boeing s are in airline service, with British Airways being the largest operator with 36 s. The last US passenger Boeing was retired from Delta Air Lines in December , after it flew for every American major carrier since its introduction.

As of February , the has been involved in aviation accidents and incidents , [] including 63 accidents and hull losses [] which resulted in fatalities. Few crashes have been attributed to design flaws of the The Tenerife airport disaster resulted from pilot error and communications failure, while the Japan Airlines Flight and China Airlines Flight crashes stemmed from improper aircraft repair. United Airlines Flight , which suffered an explosive decompression mid-flight on February 24, , led the National Transportation Safety Board NTSB to issue a recommendation that the Boeing and cargo doors similar to those on the Flight aircraft be modified to those featured on the Boeing Korean Air Lines Flight was shot down by a Soviet fighter aircraft in after it had strayed into Soviet territory, causing U.

No airlines ordered exclusive cargo aircraft or long-range SP versions. The first aircraft landed with Swissair in and the last to Sabena in First and foremost, the aircraft was expensive compared to earlier versions of the Combined with the oil crisis that happened just a few years before, this put airlines in a precarious financial position and not in a position to order a new aircraft.

Not only was there a robust second-hand market of s flying around, but nearly all the airlines that wanted a had bought one in the last ten years—and replacing an aircraft that was, on average, five years old solely for a slight upgrade — unthinkable.

Speaking of the market, in that same ten years, Airbus had come to the table with the Airbus A, among others. For instance; , pounds 66, kg of high-strength aluminium is used in its construction, miles km of wiring along with 5 miles 8 km of tubing is used, six million parts are used, half of which are fasteners. We welcome your comments below, is there more we could be showing or are there topics you would like to see?

Thank you. My Dad was a captain and I am curious if he flew the Flt aircraft or not. I bet your Dad had some great stories to tell of those days. When the aircraft is loaded it will sink down furthe ron its suspension and tyres. The launch customer of the Boeing was Pan Am. This is in our Boeing History page. Cheers Peter. Hi there — is there anywhere i can look up the dimensions of the first class cabin in the ? Could be cool! We wish you luck. Good question. It should be together, but it came such a long time after that we decided to dedicate a specific page of its own.

Here it is, Boeing I also noticed that there is much more information for the than there is for the Do you know where I could find the missing information for it? Please check again as we have added the missing information.

Thanks so much for the help!! Thank you Anne-Sophie, so glad you found it useful. Feel free to leave a review on the right side of the page. What are the fuel efficiency? What are the fuel type used? What are the weights when empty?

The hump on the front third of the fuselage was designed to house the cockpit and a first class lounge. The upper deck of the initial series had three widely-spaced windows on each side of the fuselage; on the port side there was a small emergency door, located just aft of the cockpit window. The model was introduced into service in , featuring more powerful engines and a higher MTOW.

Passenger, freighter and combination passenger-freighter versions of the were produced. The family was further enhanced with the launch of the which featured a stretched upper deck which included two additional emergency exit doors.

The was followed by the in , which retained the stretched upper deck design. The Boeing is similar to the , but distinguished by its winglets. Over 1, have been delivered as of the end of Of the 1, series built, there are 's and 14 of the older generation of 's still in active service, including those in the USAF and Air Force One.

Delta Air Lines and United Airlines both retired the last s in their fleets in late and early see video below. The is supported by 18 wheels, two on the front landing gear, and 4 "bogies'" of 4 for the main landing gear, 2 under the fuselage, and one located under each wing. The design team of 4, Boeing engineers was led by the legendary Joe Sutter , the " Father of the Boeing ", who died at age 95 in Navy, Sutter's degree in Aeronautical Engineering served him well in multiple roles at Boeing.

Pan Am President Juan Trippe was a strong advocate for a larger airliner than the Boeing displayed a for the first time at the Paris Air Show in The inaugural flight occurred the same month, flying from New York to London. The upper deck of the series had three widely-spaced windows on each side of the fuselage; on the port side there was a small emergency door, located just aft of the cockpit window.