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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450 views

How controllable is the 737 in single-engine manual-reversion flight? Is it controllably landable (or go-around-able) in this condition?

The 737 is practically the only civilian jetliner still in production1 to have provisions for flight-control manual reversion; in the event of a total failure of the A and B hydraulic systems, the 737’...
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921 views

What are the locations on the Boeing 737 wing where the airfoil changes?

I would like to know where along the span of the 737 (let's say the NG) wing the two midsection airfoils are used. I am planning on running a CFD analysis of the 737 wing, and I need accurate data.
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526 views

How much does a Boeing 737 wing bend/deflect in cruise conditions?

As a part of my ongoing research of a structural joint analysis of a Boeing 737, I have been looking for sources where I may be able to find the bending/deflection data during cruise conditions. I ...
3
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1answer
817 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 ...
2
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0answers
103 views

Why can't you operate packs on HIGH during take-off, approach and landing on a 737-800?

It's in the FCOM Limitations Chapter and I think that these phases are critical phases of flight and I don't want to reduce my engine performance by purposely creating a high demand for bleed air from ...
2
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0answers
123 views

Does the 737 MAX's engine nacelle camber affect the pitching moment?

A side view of the B737 MAX's engine nacelle shows a positive camber at the top. As nose camber of any lifting shape (wing or nacelle) generally allows more lift at higher AoA, do you think this ...
2
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0answers
819 views

Is the Boeing 737 unusually susceptible to stress fatigue?

According to this Newsweek article - which seems like a reputable source - the FAA has issued a number of Airworthiness Directives to address stress fatigue concerns with the 737NG series: Between ...
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0answers
52 views

Does the Flight Acquisition Unit on the Boeing 737 NG stream data?

I noticed on B737-800 entering the flight deck on the right side there is a port Data Loader and I think this is the Flight Acquisition Unit. Is this port used exclusively for loading data to FMCs etc ...
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0answers
56 views

How many flight control shutoff valves are there in Boeing 737?

I came to know from a source that there are total 6 flight control SOV 3 of which associated with each of system A and B hydraulic system .but in 737 FCOM under stand by hydraulic section in schematic ...
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114 views

For the recertification flight(s) of the 737Max, will the FAA want to see a live runaway stabilizer?

With Boeing ready to start the testing Monday, will the FAA want to see a simulated runaway trim failure in flight?
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186 views

Was the speed trim system on the B737 Classic modified to counter increased thrust?

How much additional thrust did the 737 classic generate compared to the original 737? Was the speed trim system added to counter the additional thrust?
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40 views

Is the B737NG AoA indicator a “normalized” indicator?

Is the B737NG AoA indicator, when/if it exists, an indicator of "normalized" AoA, or does it indicate the actual AoA measured?
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52 views

On the B737 FCTM, what are the limit values for strong and gust definitions?

There are definitions called as "Gusty and Strong Crosswind Condition" related to takeoff thrust setting choice and "Strong Crosswind" in touchdown in crab part of B737NG FCTM. I ...
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804 views

Where do I get the latest 737NG FCOM?

So, I went online to search for the 737 FCOM, but I can only get the FCOM from 2005. Is there a 2019 version? An updated version?
0
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1answer
340 views

Why is the ISOLATION VAVLE switched to OPEN during ENGINE START on Boeing 737?

As the SOP says in Preflight Procedure – First Officer: "ISOLATION VALVE switch – OPEN" In this way, when engine starts, the ISOLATION VALVE is OPEN not AUTO. The PACK valve is switched to ...