Questions tagged [boeing-737]

A short- to medium-range twinjet narrow-body airliner, originally introduced in 1968. With over 10,500 aircraft delivered and over 4500 on order, the Boeing 737 is the most popular commercial jetliner in history.

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15
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3answers
42k views

What is the maximum take off climb angle of a Boeing 737 MAX?

This video is making its rounds on social media claiming to show a 90 degree vertical take off: One can not tell from the video alone what the angle is. Does anyone have a third party reference for ...
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1answer
1k views

What is this display on the 737 Classic?

Source: YouTube I noticed that display (yellow circle) between the two CDUs. What is it for? It is not a default installation on the 737-3/4/500. It looks like a Navigation Display/MFD, but why have ...
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1answer
917 views

Which radio altimeter is the Boeing 737NG call outs based on?

I'm wondering which of the two Radio Altimeters: Captain (left) or F/O (right), that the 737 does the RA callouts based on. For instance, if the F/O's RA is slightly off, and passes 500ft before the ...
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0answers
112 views

What is the cargo capacity of a Boeing 737-200/-300? [duplicate]

I would like to know the maximum commercial load of a cargo aircraft B737-200 & 300.
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1answer
577 views

Was the safe landing of Southwest flight 1380 extraordinary or expected?

I've been reading with great interest and concern about the recent Southwest flight that resulted in the first fatality in that airline's history. There's one question I haven't seen answered, though:...
2
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3answers
822 views

What are the consequences of throttling up past 100% of N1?

The B737 is probably my favorite aircraft and I'm always sure to never throttle past 100% of N1. I was told the aircraft is pretty much totaled if you take N1 past 100% but you can eke out that extra ...
19
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5answers
5k views

What does the area around the fan blades in the engine nacelle contain?

I was intrigued to find this picture below. There was so much space around the engine. So what is inside of that extra space? Or is it just a hollow casing? Image Source Details about the picture as ...
4
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1answer
769 views

How does the attitude and heading reference (AHRS) work on Boeing 737 aircraft?

I would like to know how the AHRS work on Boeing 737 aircraft. If this aircraft (like every the other ones I guess) has an Inertial Reference System (IRS), composed of 3 accelerometers and 3 ...
34
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1answer
8k views

What exactly happened in this bird strike incident?

This Boeing 737 was hit by a bird and continued all the way to its final destination, from Prague to Las Palmas. What actually happened here? Was the incident considered a bird strike or an engine ...
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1answer
725 views

What is the hole located below the 2nd or 3rd window of Boeing 737? [duplicate]

I see there is a hole located below the 2nd or 3rd window. What is its purpose? (Sources: flickr.com and planespotters.net)
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1answer
571 views

Why we had two empty rows on busy Ryanair flight Boeing 737-800 and no one was allowed to seat there? [closed]

Back in 2012 I flew from Tenerife South airport to London Stansted with Ryanair airline. All the tickets for this flight were sold out. But 3rd and 4th row on this Boeing 737-800 were empty (12 empty ...
6
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1answer
505 views

Are there standard visual cues or other methods for flaring in a B737-800?

Just a newbie in the 737. I've flown 100 hours - in real life - in this lovely beast and found the landing to be very confusing: my main problem is every time just from 50 feet, the sink feels too ...
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1answer
364 views

The AFDS and A/T do not control to a speed which is less than minimum speed for the current flap configuration?

The AFDS and A/T do not control to a speed which is less than minimum speed for the current flap configuration. This speed is approximately 1.3Vs. Minimum speed, FMC speed, or selected speed, ...
7
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1answer
1k views

What error is left uncorrected when “fast IRS align” is done?

As far as I understand, there are two ways to align the IRSs in B737s: "Full align" and "fast align." For a full alignment, you rotate the IRS selector from OFF to NAV, and for a fast alignment, you ...
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1answer
252 views

Is this just a generic B737 or does it have a specific name?

Is this just a generic B737 or does it have a specific name?
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1answer
370 views

(B737s) Why is the automatic activation range of the AUTO mode in flight limited to “between idle and 5%”?

This is the explanation on the Engine Start Switch in the 737 series FCOM. What might be the reason why the automatic activation range of the AUTO (or OFF) mode in flight limited to "between idle and ...
15
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1answer
2k views

How can some stretched derivative airplanes have longer range while most have less?

On the one side A321 neo has almost the same range as the A320 neo (250 NM difference), and a LR version of A321 neo will have an even longer range. The same goes for the Dassault Falcon 7x and the ...
6
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1answer
348 views

Is there a wake turbulence difference between B737s?

I've heard pilots talking about how the new 737s produce much more wake turbulence then the model historically. They described it as similar to the 757, based on anecdotal experience. Have there been ...
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1answer
601 views

Does a Boeing 737 NG have Air Data Modules for the standby Pitot probe and static pressure port?

In other words, how does the ISFD calculate the air data and IR parameters? Or is the ISFD an ADM by itself?
13
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1answer
2k views

What is this red dashed line between door and cockpit window?

I noticed this dashed line located between the door and cockpit window on this 737-300 while boarding this exact aircraft at Ibiza airport. It seems to have text beside it but I did not have time to ...
11
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3answers
4k views

Why is it called “STBY RUD” on a Boeing 737?

(Source: b737.org.uk) Anyone knows why "STBY RUD" is named "STBY RUD" when the selection of the switch position activates the standby hydraulic system as well as the standby rudder system (by opening ...
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2answers
4k views

What are those arrow markings on the wing?

I recently flew on a Boeing 737-800 and found these arrow markings on the wing. What are they for?
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0answers
79 views

What happened to the 737's cockpit skylights? [duplicate]

Older-model 737s had very distinctive set of upwards-facing windows above the main, forwards-facing cockpit windows; not unlike those you'd find on MD-80-series airliners and on 727s. These windows ...
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1answer
1k views

What's this red cabin light indicator inside a Boeing 737?

What's this red light indicator inside the cabin, its flush with the sides of the plane. The exact location would be a couple of rows ahead of the overwing exit seats. This picture was taken before ...
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1answer
1k views

What is the purpose of the little eyebrow windows on the Boeing 737? [duplicate]

Anybody know what these windows were used for?
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6answers
5k views

Are Boeing 737 winglets adjustable from the cockpit?

As I taxied past some Southwest 737s during a recent trip I saw what appeared to be different angles of the winglets relative to the wing. Are winglets adjustable, are they arranged differently from ...
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1answer
702 views

What is the absolute ceiling of a 737-200?

We're trying to find the official absolute ceiling for the 737-200 for a school project. So far have only been able to maximum and service ceilings for this craft. Can anyone point us to the correct ...
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1answer
623 views

What are these light like panels on the overhead bins of Boeing 737?

These light like panels are seen in older Boeing 737s. I've never seen them turn on. Could someone enlighten (no pun intended).
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2answers
1k views

How can I find out how much a passenger window of a Boeing 737 costs?

Where do I have to look to find out how much a passenger window of a Boeing 737 costs?
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2answers
1k views

For a 180 degree turn after takeoff, what is the normal turn radius for the A320 and 737? [duplicate]

I'm looking for some rule-of-thumb guidance on this matter. It relates to route 4, the westerly take off from London Gatwick (LGW).
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2answers
4k views

Where can I find accurate information about fuel efficiency of Airbus vs. Boeing planes?

I am trying to understand the competitive positions of Airbus and Boeing's large civil aircrafts. I would imagine fuel efficiency would be very important to airline given its large component in the ...
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1answer
752 views

What to do when pneumatic air cycle kit stops working mid-flight on Boeing 737-800?

If you are flying a B738 at FL390, and one PACK (pneumatic air cycle kit) becomes inoperable, do you have to descend to FL250? If so, do you need to divert for fuel?
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1answer
506 views

How the antenna on the B737 Max fuselage doesn't disrupt the airflow? [duplicate]

As the title already say, how does the antenna on the Boeing 737 Max fuselage not disrupt the airflow? (Boeing) 737 MAX antenna.
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2answers
3k views

With the upgrade of the 737 to the Max model, what major changes are incorporated?

The Boeing 737 was originally designed in the 1960's and flew into the 1980's before a major redesign (the 737-700, -800, and -900 models) was implemented. Coming up in a few years will be the next ...
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3answers
8k views

What are the advantages and disadvantages of having landing gear doors?

To make comparison easy, let us take the example of B737 and A320, both similar aircrafts with retractable landing gear. As seen on the photo below, the B737 doesn't have gear doors for the wheels, ...
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3answers
2k views

Why has Boeing used mini winglets on the 737-200?

I found mini winglets just in B 737-200. What's the differences between mini winglets and the blended ones which Boeing uses in more recent versions? (picture source)
13
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1answer
3k views

What is the purpose of having a robotic arm fly a Boeing 737?

What is the aim of using a robotic arm instead of embedding the system on a plane? I read the 'Robotic Co-Pilot Autonomously Flies and Lands a Simulated Boeing 737' documentation but it didn't help me ...
2
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1answer
128 views

Where does the gate drop-off bagage go? [closed]

Sometimes I am asked to give-off my cabin luggage case at the gate and it will be returned to me upon arrival. I often don't mind, as long as I do get it back at the gate upon arrival and don't have ...
12
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1answer
2k views

Why are there vortex generators under the Boeing 737's cockpit windows?

What is the purpose of the vortex generators located right in front of the Boeing 737's windshield?
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1answer
596 views

What is the maximum fuel amount that fits into the rare Boeing 737-700ER version?

Title is self explanatory: what is the exact maximum fuel amount that fits into the still rare-to-see Boeing 737-700ER version?
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1answer
4k views

What do the yellow lashes/wings on the B737 PFD indicate?

When I was looking at a YouTube clip of a B737 doing a landing, I couldn't help but notice something on the PFD: What do these yellow lashes/wings indicate on the artificial horizon? Image Source (...
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2answers
4k views

How can I calculate the glide time for a B737 with engine failure?

We talked today in our flight school about the following scenario: if I climb in my 737-800 to FL100 and then have a dual engine failure, how many seconds would it take me before I reach ground? I'm ...
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2answers
10k views

Why are there two IRS switches on the 737NG?

I've noticed in some videos,that there are two IRS switches on the 737NG. Why is that so and what is the primary purpose of IRS? Also, what is the alignment of the IRS mean?
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3answers
8k views

Is excess fuel leaking normal during take off of a B737?

When we look over this video it's noted that some fuel is coming off from the left wing during the rotate. This is the position of the fuel vent within the wing, ...
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3answers
2k views

Is this ferry flight route possible for a B737-800 WL?

Recently a new aircraft, B737-86X (tail AP-BNA) was delivered to a new airline in Pakistan. The ferry flight as reported by planespotters is BFI - BGO - KHI but this seems like a large stretch given ...
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2answers
8k views

What exactly are those openings in the bellies of many jetliners?

I have circled the areas (in yellow) under the belly of the 737. What exactly are those? (airliners.net)
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2answers
10k views

What will the 737 MAX 7, 8, and 9 ICAO IDs be?

Since the ICAO identifiers B737, B738, and B739 are already taken, what will the ICAO identifier for the 737 MAX 7, 8, and 9 be? Would it possibly be B73M7 etc?
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5answers
5k views

Why evacuate wing at the front side after water landing?

When looking at the following Transavia B737 safety cards, I noticed that after a water landing, passengers who evacuate via the overwing exits should leave the wing at the front, while during ...
2
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1answer
421 views

How are individual rotor/stator blades identified during engine inspection for the CFM56?

During the inspection of fan, compressor and turbine blades, what is the method of identification? For example during borescope inspection, what is the mode of identification of stator and rotor ...
4
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1answer
887 views

How to program an FMC if the database is missing the arrival airport?

Let's say you are in a 737 flying to Geita, Tanzania, as you can see this little airport/airstrip has an IATA code, but not an assigned ICAO code. What should you enter into the FMC if I want to fly ...

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