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42

It's a Fedex 777F N894FD in (probably) pre-delivery aerial photography/test flight accompanied by one of Boeing's chase aircraft. After some maneuvers (shown below), the plane headed to MEM, Fedex's "SuperHub". (Source) The flight on flightradar24: https://www.flightradar24.com/2019-07-24/03:16/12x/FDX9032/2168b4b1 and flightaware: https://flightaware.com/...


32

You can only hire so many people at one place, and also only find so much land there, so when the whole process no longer fits, there is no other option than start building components at other places and move them to the final assembly place. In part, it is also historical. Airbus, but to an extent Boeing too, was formed by mergers of smaller companies as ...


28

Boeing did have a small regional jet called the Boeing 727. This plane was designed to operate at smaller airports, with independence from ground facilities as a selling feature. The best example is that the 727 had built-in stairs in the rear underbelly of the aircraft. This could be opened in flight until some hijacker known as DB Cooper jumped out to make ...


25

The Boeing 777X website states that this is to enable a more efficient wing (read: wider span) while maintaining the airport gate and taxi footprint of the classic 777 (which ensures airlines can use the 777X on roughly the same airports and intermix operations with the classic fleet).


25

It looks like an air-air photography trip by Boeing - the lead airplane is a LearJet, a type often used for this type of job with a turreted camera sticking out of the floor for views to the rear, ie for head-on shots of the target aircraft which in this case is a 777.


24

Many modern aircraft have been designed with winglets, and older ones have been retrofitted with them. They allow a wing to produce more lift with less drag. However, the benefit is even greater if the wingspan is simply extended. The downside of increasing wingspan is that wingspan affects many aspects of airport infrastructure, especially taxiways and ...


20

While airliners don't have "model years" like cars do, they are certainly changed over time. There are major "generations" of some aircraft types, like the 737. The "original" (-100,-200) was replaced by the "Classic" (-300,-400,-500) which was replaced by the "Next Generation" (-600,-700,-800,-900) and most recently replaced by the "MAX" (-7,-8,-9,-10). ...


19

There are many considerations in where parts are manufactured or assembled, and not all are directly related to economics. Both Boeing and Airbus have assembly lines located around the world, so it can make more sense to consolidate production of components in one place. Manufacturing large parts requires a huge investment in tooling and machinery. For ...


13

They are different, yes. The 73H is not the Max 8. The 73H is an -800 with winglets. The -800 has been in service since 1998, with 4,991 deliveries as of February 28, 2019. See here: What is the difference between Boeing 73G, 73H and 737? 73H - Boeing 737-800 with winglets (8th letter of the alphabet) The Max 8's IATA code you'd find on a ticket is 7M8. ...


9

As far as length is concerned, there are two versions of the 777 classic series, the -200 and -300. The -300 is the longer one, at 242 ft 4 in (73.86 m). Other than choosing one of these two models, there is no customer option to change the length of the plane. I'm not sure where the Saudia data comes from. But the 777-300 is not the longest plane in the ...


8

Well it did have one in the form of the ‘slugs’ - the earlier 737 classic aircraft. They sold outrageously well along with the 727s to fill regional or national routes. And let’s not forget the airline business was considerably different than it is today in the form of structure and operations so what we consider a ‘regional’ aircraft is very different to ...


8

That is one of two heated drain masts for the lavatory sinks. How does the drainage of the gray water work?


8

I think you fell for a common misunderstanding: Fly by wire ≠ flight control augmentation It is - in the first place - another method to get the pilots input out to the control surface just like cables or pushrods. Just not mechanical but electric/digital. If you want to alter the pilot input for whatever reason it is way easier with digital signals ...


7

There are several reasons like Risk reduction by second sourcing. This means that a manufacturer tries to sign up several manufacturers for the same part to make sure, that if one can't deliver by whatever reason, there will be a backup. Having multiple suppliers enables competition between them, eventually lowering the price Production for some parts may ...


7

Via a third party Boeing is heavily involved in design and marketing this beauty, the Sukhoi Superjet 100. 78 or 98 seats, with talk of a stretch or two to 120 and 140. Russian built, with largely Western engines, subsystems and avionics. It was poised to do quite well in the RJ market until Euromaidan/Crimea/Donbass threw a big monkey wrench in the ...


6

The 737 was basically created to be Boeing's regional jet, but ended up growing into something larger to meet customer demand. The DC-9 was introduced in 1965 and had variants seating from 90 to 135 in a single class. The 727-100 was introduced around the same time and already covered the upper end of this range. The 727-200 was even larger, almost ...


6

This has not mich to do with aviation. All big companies are required to spread around the world. It depends on where your workforce lifes, where does the customers reside and where you get your natural resources and political conditions. Airbus was merged together from smaller and bigger companies founded across Europe. It was fostered by politicians* ...


5

There is no way to totally inhibit GPWS on the B737 except by pulling the circuit breaker. What you can do is inhibit specific modes of the GPWS. This is done via the following switches: Source: Boeing Co. The Below G/S switch (1) inhibits the below glide slope alerting. Flap and Gear inhibit switches (4 and 5) allow inhibiting the "Too Low Flaps" ...


5

The aircraft accident was caused by ice accumulating in the Fuel Oil Heat Exchanger (FOHE) of the Rolls-Royce Trent 800 engines which subsequently blocked fuel flow to the engines. The official accident investigation concluded: The investigation identified the following probable causal factors that led to the fuel flow restrictions: Accreted ice ...


4

As someone who works for Airbus... Airbus now is the conglomeration of many old companies - as recently as 2014 there was a merger bringing in EADS Astrium satellites, Paradigm security, Eurocopter, Safran launcher services etc. into Airbus GROUP. Not all of these are related to the building of planes, but they all had their distinct fields of work prior to ...


4

TAX and Financial reasons Imagine a location really needs employers, to provide jobs. So the local or national government may choose to subsidise part of the costs. Example - Tesla Gigafactory-1 was sited in Nevada, whose offer: included $195 million in transferable tax credits... from https://en.wikipedia.org/wiki/Gigafactory_1#Factory_location


4

The laconic answer is for political reasons. You partition the job to many areas, so that everyone gets its workshare, and keep their economy moving. Pros: A site capable of building every single part of an airplane needs to be colossal. By scattering the work, you avoid that. Cons: Merging all the parts is prone to errors, and many airplanes were delayed ...


4

For the 737: RTO is used for takeoff, and puts full hydraulic system pressure to the brakes. The other autobrake settings, 1, 2, 3, and Max, are used for landing, and brake to achieve a specified deceleration rates. In autobrakes Max, you get very firm brake application, but it's still something less than unmetered system pressure to the brakes. In all ...


4

Nothing besides cancelling or rebooking (while hoping the new flight will have a different type assigned to it). Unless your transport contract with the airline goes into inordinate detail about the service to be rendered you won't be able to dictate what type of aircraft should the used for the trip.


4

There are very good reasons to implement coupled column/yokes for aeroplane control: they are right in front of you, you can apply force with both hands, and you can feel immediately what input the other crew member is giving. The force sensors in our hands are very precise feedback instruments that should and can be fully utilised. The upside of the side ...


4

These are mostly IATA type designators, except for OAAG, 76A, 76B and 77E. 77F is the official IATA designation of the freighter version of the 777. The rest: 77E seems to be an internal designation used by British Airways for a specific sub-fleet with an increased gross weight. 76B seems same as above just for 767-300ER. I wasn't able to find anything ...


4

And some older Mooneys have infinite flap settings depending on how much you pump them up... The reality is that there are no regulations on how many flap settings an airplane must have and on an airliner that may also have things like speed breaks or slats as well, flap settings may vary by design or simply by engineering choice. Flaps are used for ...


3

Please refer to the following website for more details https://slate.com/technology/2019/03/ethiopian-airlines-737-max-black-box-sent-to-paris-why.html The International Civil Aviation Organization, which sets the standards for aircraft accident investigations, says that the country where an incident occurs is in charge of the investigation If the ...


3

I am not aware of any manufacturer making a serious proposal to develop a jumbo jet with low bypass-ratio engines. Most airline manufacturers tend to develop a plane from customers requirements, whether that customer is military or civilian. Civilian airlines in the late 1950s were already nervous about the much higher costs for jet-powered aircraft and ...


3

The Boeing 757 has three fully independent hydraulic systems. The three systems are "Left," "Center," and "Right." The left system is powered by an engine driven pump (EDP) on the left hand engine, an alternating circuit motor pump (ACMP) located in the wheel well, and a power transfer unit (PTU) powered by the right hydraulic system. The center system is ...


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