Questions tagged [plane-construction]

Questions about the process or methods used for constructing aircraft.

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2answers
187 views

Why do we use composite aluminium or titanium stacks in airplanes? [closed]

Why do we use composite aluminium or titanium stacks in airplanes? What are their machining conditions?
10
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1answer
353 views

Did Boeing really use ferrets to run wires through aircraft during construction?

I've seen many articles on the internet (here, here & here) claiming that Boeing used a team of ferrets to run cables through hard to reach areas when building aeroplanes, but I've never seen any ...
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0answers
81 views

which aluminium alloy was used in the 777 fuselage and which one will be in the 777x?

Seems like Boeing is going to use carbon fiber wings for the new 777x, but for the fuselage aluminium will be used, which alloy will be? and which one is it substituting?
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3answers
389 views

Why don't short-haul regional jets go for composites?

We have seen Airbus and Boeing going all the way for composites on their A350 and 787, but when it comes to smaller planes like the Embraer E-jets or the Bombardier C-series, they choose to use ...
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1answer
597 views

Question about Eurofighter structure

I was researching for the Eurofighter and I came up with a picture of its structure. I have three questions about its parts. I can't understand the role and the usage of them. Can anyone help me? ...
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3answers
1k views

Are modern fighter jets bulletproof and armored?

Are modern fighter jets bulletproof and armored? One would not be wrong given part of their operations is being on the receiving end of enemy ammunition shooting at them.
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2answers
243 views

What was the first aircraft designed with a plug-system fuselage, and why?

Nearly all modern transport aircraft are designed with a plug-system fuselage, allowing longer and shorter variants to be built by adding or removing plugs. In addition, the plug system simplifies ...
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2answers
219 views

How can one calculate the maximum instantaneous bank angle a plane can do in a certain time? [duplicate]

I know that there is a limitation to do an instantaneous banking angle a plane can do. These limitations are due to the airplane (infrastructure - aerodynamics) and limitation on the pilot (due to his ...
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2answers
779 views

Is it OK to use foam for the ribs of an ultralight's wing?

I have seen several YouTube videos of ultralights and even HPAs (Human Powered Aircraft) that use foam as the ribs of their wings. Are ribs not supposed to be made of rigid, strong, woody and light ...
11
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1answer
451 views

How many wing attachment nuts are there on a DC-3/C-47?

How many wing attachment nuts are there on a DC-3/C-47? I once participated in putting one together and is now writing about it, but cannot remember how many nuts there are, only that it took forever ...
4
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1answer
584 views

Which are the main aluminium alloys used in airliner construction?

The proportion of composites used in airliner construction has increased in the last decades, with the B787 and the A350 being the first ones with composites making up the majority of wing and ...
5
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1answer
521 views

What physical tests are involved with verifying a wing spar is suitably constructed for a homebuilt aircraft, such as the piper cub kit from wicks?

During construction how is a spar tested to ensure it can adequately cope with bending and twisting forces of the completed structure, or is this performed after complete?
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2answers
373 views

What is aeroelastic deformation?

Some answers on this site, such as this one, refer to something called aeroelastic deformation. What is it and how does it affect aircraft construction? Are there any famous lessons learned on this ...
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1answer
2k views

Why does the wing root of the A330 have a pronounced twist?

just wondering what the purpose of the pronounced twist on the Airbus A330 wing root is, I've noticed this on the 380 as well.
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2answers
3k views

Why is the empennage of some aircraft not placed on the centerline?

Check the MD80's empennage below. Can easily tell it's not built on exactly centerline by naked eyes. Is that because aluminum joint or consider aerodynamics? I don't think it is manufacturing ...
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4answers
1k views

How are aircraft shipped to their customers? [duplicate]

This is sort of the inverse of this question. I was looking at the Boeing facility in Renton, WA in Google maps, and I realized, the airport is across the (Cedar) river from what I assume to be the ...
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0answers
243 views

Why are fast passenger airplanes no longer produced? [duplicate]

Concorde was a fast aircraft, but no comparable aircraft is designed today by manufacturers. What are the main reasons for manufacturers to prefer larger planes carrying more passengers rather than ...
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1answer
2k views

How are engine pylon designed?

Currently I'm working on my master's thesis on the topological optimization method of aircraft structures. I'm gonna to explore this method of design on the example of the pylon. Make something like ...
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4answers
7k views

How is a wing joined to the fuselage?

I've seen this video from Airbus: This is a capture from that video: What is the process for attaching the wings to the fuselage?
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2answers
1k views

Why do fabric skin constructions not show up much in larger single piston aircraft?

I noticed that many ultra-lights use fabric skin but are not seen much in GA aircraft, especially compared to carbon fiber? Many skin makers advertise that it can handle that sort of weight. Is this ...
9
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2answers
2k views

How realistic is the plane scene in Captain America: The First Avenger?

In Captain America: The First Avenger, there's a scene in which Captain America gets into the villain's plane by holding onto the landing gear as it's taking off and waiting for it to be retracted. ...
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3answers
3k views

How is a horizontal stabilizer attached to the fuselage and works as a trimmable Horizontal Tail as well?

I am trying to figure out how does the horizontal stab attached itself to the plane and moves up and down? Is the HS attached by the rear spar and to the fuselage?
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2answers
1k views

How were fighter jets built in the 1950's?

As far as I know, jets did not see mass production across the world until the 1950's. So I'm interested in how they were built in that time. How many different types of factories were needed? How did ...
5
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1answer
2k views

What are these green “bags” on the SSJ100?

I've seen some green "bags" on the SSJ100 when they were building it. What is the purpose of these?