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Questions tagged [fixed-wing]

Conventional aircraft where the wings do not move to create lift. Distinct from rotary aircraft such as helicopters, where the lifting surfaces (rotors) spin to create lift.

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148 views

What landing aid system are used for fixed wing UAV?

For commercial aircraft, precise landing aid systems (ILS, GBAS) are required for autolanding, but these navigation systems are too expensive to be used for UAV operations. However, a lot of UAV OEMs ...
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2answers
145 views

Positions of drag wires in a bay

Take a good look at the small dots • on the bays of this two spar wing. My question is: Are the drag and anti drag wire as seen in bay 1 supposed to connect to the root of the compression tube Or ...
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0answers
83 views

How do split winglets reduce bending moment in the wings?

I am doing a study on split winglets and how they are more advantageous than blended winglets . While browsing through the net, I was reading an article about the Boeing 787 Dreamliner and they had ...
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3answers
125 views

From which rating would it be easier to transition to an Osprey? Fixed-wing or rotary-wing?

If the future of flight was to be on aircraft that were a hybrid of fixed-wing and rotary-wing (for example the Osprey), assuming they had similar technical abilities and the same number of flight ...
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2answers
416 views

Straight Wings VS Delta Wings, Variable wing with Forward swept capability [duplicate]

What are the Pros and Cons (Advantages and Disadvantages) of a Delta wing and a Straight wing against each other, and if a Variable wing with a capability to become a Forward Swept wing is even ...
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0answers
45 views

Is there any fixed-wing UAV common research model available?

Is there any source of structural specifications data available for a particular fixed-wing UAV, that can be used for comparison with a resulting structure, obtained by a structural optimization ...
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1answer
129 views

How do the vortices of a fixed wing and horizontal stabilizer interact? [duplicate]

What interaction of vortices between the fixed wing and horizontal stabilizer? How do the vortices affect the flow of the horizontal stabilizer upon leaving the wing? when will the downwash effort ...
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1answer
149 views

What are a few main differences between ATC interactions for rotorcraft vs fixed-wing?

The title says it all. In particular, I'm wondering what the differences are in reference to: Takeoffs and landing - can rotorcraft be cleared to take-off / land directly from / to the helipad? When ...
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1answer
155 views

What are the minimum hours required for private instrument fixed-wing plus commercial helicopter?

I want to get my private pilot plus instrument rating in fixed-wing aircraft for personal use. In addition to that I want to get my private and commercial in helicopters to start a career in flying ...
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1answer
1k views

How is the airfoil of a fixed wing ultralight constructed?

This is a good example of the type of ultralight I am trying to build: (Source) How might the airfoil be constructed in this plane? My guess was that it's mostly created by the cables that suspend ...
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1answer
602 views

What is the shape of the power required curve?

I understand that when flying level, some power is required to maintain altitude, this power amount being: Normally larger when the speed is larger, this is flying on the forward side of the required ...
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1answer
323 views

Is there a fixed-wing aircraft that uses a scissor propeller configuration?

(Source: primeportal.net) Has there ever been a fixed-wing aircraft whose propeller is in a scissor configuration? Like the Apache's tail-rotor seen here: What are the benefits of a non-orthogonal (...
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3answers
316 views

Do wingtip vortices really only form when airplane wheels are separated from the ground?

My GA theory textbook (which covers fixed wing up to and including EASA PPL) has some suggestions on taking off and landing light aircraft soon after large aircraft (besides avoiding it, if possible), ...
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3answers
719 views

How is the centre of lift and centre of gravity misalignment problem solved in Delta wing aircraft?

Since Delta winged aircraft don't have horizontal stabilizers to produce down force, how is that problem solved ?
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2answers
214 views

What are the dynamic stability properties of an aircraft with wings exactly at the vertical CoG?

Please ignore for a moment the practical issues with building and operating an aircraft like this. Suppose a fixed-wing aircraft which, when viewed directly along the roll axis, has the wings ...
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4answers
1k views

Why are there no 4-winged airplanes?

With larger wings comes more drag. So why don't large planes have 4 smaller wings instead of 2 very long ones?
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14answers
31k views

What is the slowest fixed-wing airplane?

It's easy to find information about the fastest airplanes, in different categories (e.g. X-15, SR-71, the Concorde etc), but what is the slowest one? Which powered, manned airplane is capable of ...
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1answer
917 views

What are the aerodynamic advantages and disadvantages of the Weltensegler wing?

What are the aerodynamic advantages and disadvantages of the Weltensegler Wing? Would this kind of wing configuration come to help for a glider? Is there any difference between them and gull wings? ...
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2answers
601 views

Could flywheel type gyros stablize a plane?

An aircraft carrier has massive spinning gyros to keep the ship upright against waves. Do planes of any type have gyros like those used in satellites? Not instrument gyros. In the picture below ...
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0answers
82 views

How does the University of Bristol's AI fixed-wing perched landing change the wings?

The BBC radio program Click's 2017-01-24 episode, starting at about 06:20, describes the use of AI to develop a perched landing capability by an autonomous fixed-wing craft. I can't understand exactly ...
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4answers
947 views

Has anyone attempted to recreate the Sack AS-6 (German Saucer-wing)?

I remember seeing pictures of this as a kid and wondered whether anyone has since recreated this saucer-wing aircraft and made it work? Source (excuse the pun)
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2answers
184 views

Feasibility of using secondary props to generate power on an electric model aircraft [duplicate]

Beginning with the aeroplane itself, it is a small, fixed wing model aeroplane, reminiscent design-wise to a Cessna 172. It is completely battery powered and has a primary prop attached to a motor ...
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4answers
2k views

Is there anything wrong with this more symmetric aircraft design, and why isn't it used?

I imagine a fixed wing airplane design that's a lot more symmetric than what I see today. This symmetric design has wings in the middle of the fuselage (neither high wing nor low wing), and the ...
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4answers
564 views

Is a fixed wing more efficient in reaching a certain altitude than rotary wing?

Given the limited amount of energy (battery or fuel) let's reach the maximum possible altitude! Rotary wing aircraft pushes the air directly downwards and propels itself straight up. Fixed wing, ...
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3answers
526 views

What is the drag of helicopter rotor at jet speed?

I wonder if a jet plane can have helicopter rotor for vertical take off and then, when moving forward just stops that rotor and uses lift from wings like normal plane. Since rotor blade seems thinner ...
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3answers
10k views

What are the advantages or disadvantages of a mid wing design?

Are there advantages or disadvantages to a mid wing design for a monoplane? If so, how would this design compare to a high wing or a low wing monoplane design? What might be the aerodynamic ...
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1answer
250 views

Can 'neutral static stability' only be achieved by constantly augmenting the control surfaces?

I watched a flight mechanics lecture that mentioned that some combat aircraft like the Hornet has a 'mode' where the on-board computer simultaneously and automatically adjusts all the control surfaces ...
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1answer
3k views

What are the advantages and disadvantages of level flight with a nose-down attitude? [duplicate]

This is a questions about fixed-wing aircraft in general -- commercial planes and smaller. I have seen on a video that planes are capable of flying in a holding pattern with an nose-down attitude "for ...
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4answers
16k views

What is the performance of a flat plate wing?

By flat plate I mean this: Source: Physics.SE Low performance indeed, but how much low? How would: The angle of attack, The speed range, The turn capability, The fuel consumption, Or other ...
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1answer
1k views

How does stall risk in paramotors differ from that of conventional fixed-wing aircraft?

I happened to be walking past a small outdoor fair today, and saw someone flying a paramotor. The craft took off and started a steep ascending turn losing speed rapidly, seemed almost to come to a ...
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1answer
455 views

What are the differences in design considerations for ground attack and air dominance aircraft?

What parameters and types of performance are designers trying to maximize when building an air dominance fighter plane rather than a ground support fighter? What are the trade offs between them - what ...
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4answers
3k views

Is it harder to learn to fly rotary wing after learning on fixed?

I have a private license for single engine land and I want to transition to helicopters. I have been told by some that learning helicopters is more of a challenge after learning fixed wing. However I ...
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2answers
2k views

Can carrier-based aircraft takeoff while the carrier is stationary?

Reading about aircraft carrier operation turns out that carrier operation relies a lot on catapult and carrier itself turns into wind with high rev on propellers. This generate as high wind speed as ...
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4answers
987 views

Can a free-falling aircraft with no horizontal (or minimal horizontal velocity) start up and fly to safety?

Inspired by this Grand Theft Auto gif, an aircraft with its engines initially idling is dropped from a high altitude (such as from the top of a building) with no or minimal horizontal velocity. Can it ...
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1answer
778 views

Would solar panels on the wing of an aircraft increase drag?

If a small scale UAV (wingspan <2 metres) was to be fitted with solar panels on its wings to have more power available, would the addition of these panels cause an increase in the drag coefficient, ...
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3answers
4k views

Why is the wing of large commercial jet aircraft usually located below the fuselage?

When the wing of an aircraft is located above the fuselage, the aircraft is generally considered more stable. When the wing of an aircraft is located below the majority of the fuselage, the aircraft ...
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3answers
10k views

Is wing flex good?

I've noticed that the wings of the 787 and A380 tend to flex a lot. Does wing flex help an aircraft in any way?
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3answers
3k views

Why do airfoil's trailing edges point downward?

The trailing edge of and airfoil is mostly pointing downward. Is there any reason for that? Down wash increases drag and down wash is due to the direction of air pointing down. If the trailing edge is ...
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2answers
7k views

What are the drawbacks of being a helicopter and fixed-wing pilot at the same time?

Are there any drawbacks if someone who is a fixed-wing pilot, learns to fly a helicopter, or vice-versa? Specifically, are there instinct actions in one category that are dangerous in the other? Does ...
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3answers
13k views

What's that component between the engine and wing?

It's on most commercial aircraft and large aircraft with turbofan engines... Is there a specific name for it? Does it serve any other functions apart from attaching to the wing and feeding the engine ...
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5answers
8k views

Why is the PIC position for helicopters the right seat, rather than the left seat as in airplanes?

So far as I am aware, in a fixed wing aircraft having side-by-side seating and dual controls but only a single set of instruments, those instruments are always positioned in front of the left seat. ...
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1answer
3k views

Why do helicopters and airplanes use different headset plugs?

If the headsets and microphones for general aviation have the same impedance for helicopters and airplanes, then why do they have different connectors on them? Is it simply to make more money from ...
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2answers
4k views

What are the properties of the wing (airfoil symmetry, angle of incidence) of an aerobatic aircraft?

On an aerobatic aircraft, such as an Sbach342, what type of airfoil does it have and what angle of incidence does it have in relation to the fuselage?
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2answers
2k views

Why are rotary wing aircraft less efficient than fixed wing aircraft?

This question showed that rotary wing is less efficient than fixed wing, but the answers don't really address why. Why are rotary wing aircraft less efficient than their fixed-wing counterparts? ...
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3answers
13k views

Why do (almost) all military transports have high wings and civilian transports low wings?

I've observed that almost all military transports have high wings (with a pronounced anhedral) and almost all civilian airliners have low wings (with a pronounced dihedral) — why is this? The ...
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3answers
17k views

How does the efficiency of a fixed wing compare to a rotary wing?

Is fixed wing more efficient than rotary wing? If yes, why is that?
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1answer
486 views

Could an inflatable wing be installed on a Silent glider aircraft?

Would it be technically feasible to install the Pneumagic inflatable wing on the Silent glider?
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3answers
55k views

How do aircraft keep fuel from freezing while in flight?

On aircraft which fly above 30,000 feet, the temperature can often can get to temperatures below Jet-A's freezing point. For example: at 36,000 feet the standard outside air temperature is -56.5°C (-...
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6answers
4k views

Is a propeller a wing?

An aviation expert claimed to me that a propeller is a wing. While I understand that propellers use similar principles to generate force, it muddied the definition of a rotary wing aircraft vs a ...
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1answer
4k views

How does exceeding the critical Mach number of an aircraft affect its operation?

If an aircraft exceeds its critical Mach number, does it affect the way the aircraft is handled? Are there any significant changes to performance or the safety of the aircraft when above this speed? ...