Questions tagged [boeing-777]

A long-range wide-body twinjet airliner produced by Boeing since 1993, with over 1,500 built.

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4
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1answer
294 views

How did the Boeing 777X's main landing gear lift before the nose on its first takeoff?

Source: Boeing 777X Takeoff for its First Flight Is this from a low payload and the configuration of flaps? Or perhaps a pilot pushing the yoke forward while the plane wants to lift?
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Does anyone have photos of internal parts of ELAC, FAC, SEC or Boeing 777 flight computers?

I'm an electrical engineer and I'm interested in civil aviation, more specifically in fly-by-wire planes like the Airbus A320, Boeing 777 and others. But I fell in love with the Airbus A320 as it is ...
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Can an airline order a 777 with 787 flight deck avionics?

So an airline orders a 777, but instead of the cockpit in that, they request the 787 cockpit installed in their 777, is this even doable?
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What changes were made to the 777 as a result of British Airways 38?

Regarding the crash of British Airways Flight 38, a 777 inbound to Heathrow, the AAIB final report, section 2.8 states that frozen fuel deprived the engines of fuel pressure resulting in the crash. ...
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Why didn't Philippine Airlines Flight 113 dump fuel prior to forced landing?

Philippine Airlines Flight 113 operated by a Boeing 777 bound for Manila suffered a compressor stall and engine fire. I wonder why the pilot didn't dump fuel from the left-side prior to the landing ...
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Engine options for the 777-300ER: GE90-110B1 or -115B?

The Wikipedia page on the Boeing 777 says that the 777-300ER can have either the GE90-110B1 or the GE90-115B, however it was my understanding that the 777-300ER does not have engine options and is ...
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1answer
192 views

How can the 777X's longer wing reduce vortices? [duplicate]

I saw the following on this web page: The purpose of the longer wing is to reduce drag caused by vortices, or wake turbulence, that form at an aircraft's wing tips. The less drag, the greater the ...
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57 views

Time of flying from Toronto to Philippines [closed]

Please I would Like to know how many hours I will be flying Across the ocean . I will be flying on an aircraft 773 boing 777.
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What is the “Brake to Exit” feature on the Boeing 777X?

I have come across a new feature called BTE (Brake to Exit) on the 777X, but I am unable to find any documentation related to that. There are vendors who are working on this technology for the 777X.
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532 views

What main landing gear actuator does the Boeing 777-300ER have?

I can't remember the name of this system was, but all I do know is that is a big actuator that only exists on the Boeing 777-300ER variant. It will pressurize the actuator according to the thrust ...
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205 views

Why are the spoilers used as the backup controls instead of ailerons on the Boeing 777?

While reading this question, I ran across an interesting unanswered comment. Why did Boeing choose to use some of the spoilers as mechanical backup controls rather than the ailerons?
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What type of jack is the flight interphone on transport category aircraft?

Recently became an A&P and part of my job is to be on the ground communicating to the pilots during push backs. Started shopping for a headset and have seen various ones with different adapters ...
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Which aircraft are 76A, 76B, 77E, 77F?

I have a list of of aircraft types like so: ...
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MH370 blackbox - is it still possible to retrieve data from it?

If the blackbox of MH370 were to be found today, would it actually still provide any information, assuming that it was in 5km deep water or so for some 5 years now? If not, why would you still be ...
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B777- In emergency mechanical back up how does the flight controls manage engine failure

In case of engine failure above the ocean with multiple electrical failures and after having exhausted the batteries the fly by wire mechanical backup with available hydraulics if left with the THS ...
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1answer
702 views

Why didn't Boeing make the Sky Interior for the Boeing 777?

Generally, Boeing has attempted to make the interiors of their aircraft as similar as possible, with one "unified" interior across different aircraft (i.e. based on a single "look and feel" for you UX ...
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How to apply the TO/GA time and EGT limits?

If there is a published 1) EGT limit and a 2) TO/GA time limit, which one should be applied when the EGT is well below the EGT limit and possibly even below the 'max continuous' EGT. Particularly with ...
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How long are the nacelle strakes on a GE-90?

For my school project, I'm doing something where I create a nacelle strake on a model plane and I want to make it to scale. Could you please let me know the dimensions of a nacelle strake? I would ...
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Can 7 AKE containers adjacent to each other be securely locked in a 777-300ER's aft cargo bin?

Is it possible to securely lock 7 AKE (LD3) containers adjacent to each other in a Boeing 777-300ER's aft cargo bin from position 31 to 41 (41 included)? According to my experience it's impossible to ...
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1answer
632 views

Why was Air India flight AI101 diverted to SHJ 5 times in the past few days?

Air India flight AI101 using a 777-300ER on multiple westbound and eastbound routes was diverted to SHJ airport in Sharjah, UAE. I am curious if there is a specific reason. It cannot be a coincidence ...
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699 views

Is Saudia's 777-368ER The Longest Passenger Aircraft?

I watched a video about passenger aircraft length (video was removed from YouTube) It says the longest passenger aircraft is Saudia's 777-368ER. Saudia web site says their 777-368ER is 78.86m. But ...
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Can a 777X legally be ferried with one or both wingtips folded?

The 777X family (777-8/-9/-10) features wingtips that fold up on the ground to let the aircraft fit in tight spaces. These have to be extended and locked in place before a revenue flight can take ...
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1answer
958 views

How much air does a 777-300ER's pressure cabin hold?

I've been wondering how much air a 777-300ER's pressurised cabin holds, but, while most of its specifications are fairly easy to find, the amount of air it contains is not. Does anyone know what ...
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266 views

Difference between FMCF and AIMS on B777?

What is the Difference between Flight Management Computing Function and Airplane Information Management System on B777?
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Why has the 777x been designed with folding wingtips?

I recently visited the Boeing factory outside Seattle, WA and noted in the distance a new 777x being built with, what looked like very large winglets. However, on closer inspection they're not - the ...
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523 views

Can the pilot stop airflow between cockpit and cabin?

During normal operation the entire fuselage is pressurized equally: An aircraft fuselage does not contain separate compartments with different pressure values in each. The entire vessel is ...
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957 views

Can autothrottle be used without autopilot (and vice versa)?

In commercial passenger aircraft: Can autothrust be used with A/P disabled ? And can A/P be used without using autothrust? Citable references very welcome! If the question depends on a specific ...
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498 views

Wind correction on downwind during circling

A timing must be started when flying abeam the threshold on a circling approach. The FCTM of the B777/787 mentions 35 seconds and the SOPs of the Embraer 190 30 seconds. Do they need to be corrected ...
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637 views

What are the Boeing 777 thrust calculations? [closed]

Can someone show typical calculations for a Boeing 777 jet engine for the following criteria: Take off thrust of the engine at 170 mph take off speed and 45 degrees F Cruising thrust required at 500 ...
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How does the Boeing 777's yoke of both the captain and the first officer have synchronized movement?

On Airbus planes, the side stick of both the captain and co-pilot are not synchronized in movement, meaning if you the captain moves the side stick, the co-pilot's side stick will not move together. ...
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3k views

How often is a tire replaced on a 777?

Given that it is long haul aircraft, and is most widely used by airlines in that capacity: How often do they replace the whole tire? How much does 1 tire cost the airline?
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What does “share a type rating” mean?

The Boeing 787 shares its type rating with the 777, but what exactly does that imply? Surely it cannot mean any 777 pilot can just jump into a 787 and fly it. While being similar, the 787 has some ...
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What was the value proposition of the 767-400ER over the 777?

Aside from visible differences, what are some differences in the usage and design of the 767-400ER as compared to the 777-200/200ER (or 300/ER if you feel makes more sense)? What was the value ...
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What repair can be done on this wingtip? (777)

The accident happened in August 2012 and broke the wing of the Boeing 777-200 passenger jet. While taxiing at Shanghai's Pudong airport, its wingtip hit the tail of another aircraft. What action need ...
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176 views

Why does the B777-200 freighter not use the letters I, N, O and Q for deck positions?

The B777-200 Freighter has positions on the main deck to describe how the cargo will be loaded in a left to right sequence. They are identified as A, B, C, D, E, F, G, H, J, K, L, M, P and R. What is ...
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Is the Embraer E190-E2 equipped with raked wingtips?

It looks like the Embraer E190-E2 has a raked wingtip, but isn't a raked wingtip only efficient for long-haul aircraft like the Boeing 77W?
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Why is Landing Altitude displayed in amber on B777?

When I set the landing altitude manually, an amber LDG ALT and Landing Altitude EICAS message is displayed. There are no failures nor has the landing altitude been set incorrectly. Why do I still ...
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Why do the wing tips on the Boeing 777X fold up instead of down?

The outer 11.4 feet (3.8 meters) of the wings of the Boeing 777X are designed to fold up when on the ground. Why aren't they designed to fold down? It seems to me that folding down would be more "...
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Why does the Boeing 787 have fewer cockpit windows?

Why does the Boeing 787 have fewer cockpit windows? The 787 has only 4 cockpit windows, whereas other airplanes have 6. Here is a comparison between the 787 and 777: ^ 787 V.S. 777 v
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How do tyre pressure sensors in aircraft work?

I am specifically interested in the sensors used on the B777 and B787.
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How long is the training to get a Boeing 777 rating if one has a 737-200 rating?

I was wondering if anyone knows how long the training for a 777 takes if one already holds a 737-200 rating. I've looked it up online and didn't find an adequate answer. According to this site, the ...
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How does the nitrogen generation system in a Boeing 777 work?

How does the nitrogen generation system in a B777 work and how does it differ from that used in a B787? Any diagrams will be appreciated.
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How does the wheel speed sensor in a Boeing 777-300ER work?

I do have a maintenance manual that I found on Internet, but it doesn't have anything about the wheel speed transducer. Any pics along with the information would be helpful.
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Why did Boeing remove the engine chevrons on the 777-X?

From the most recent renderings on Boeing's site, it looks like the engine chevrons found on the 787, 747-8 and 737-Max have been removed from the 777-X. Is there a good reason for this?
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443 views

Where is the toilet smoke detection indication displayed for a B777-200/300?

In case of smoke detected in any of aft toilet of a B777-200/300, where is the indication displayed? Is this at a single location, or at different locations?
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Could an aircraft like a Boeing 777 take off with flaps fully deployed?

I have wondered this for years. Could an aircraft successfully take off with the flaps fully extended to the landing position? To make this more concrete, let's say a B773-ER at ATL runway 8R.
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What's an estimate for the cost of the cockpit technology on a 747 or 777?

Can anyone share what the percentage cost or dollar costs of cockpit instruments and related software is within a 747 or 777? PS- I'm a physician working in medical safety. Physicians can no longer ...
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What is the CPIOM in the IMA?

What is the CPIOM in the IMA architecture. Which is the difference between the CPIOM in the A380 and the CPIOM in the B777?
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Can you safely operate a 777 with diesel?

Is it possible to safely operate a Boeing 777 on diesel instead of Jet-A? Are there any regulations that prevent this? Would it cause any damage?
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Can passenger plane do an aileron roll and fly upside down? [duplicate]

I've researched this topic and as far as I can tell any plane can fly upside down if it's already in this position. It just needs to be angled enough so that its wings are angled upwards. I believe ...