Questions tagged [aerospace]
The aerospace tag has no usage guidance.
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How to convert aircraft position from GPS to Local Tangent Plane (NED) coordinates?
Do these conversion formulas look correct? I'm writing my own local navigation script in Python, and I want to ensure that my understanding of the underlying math is solid.
Reference location
...
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How are flaps and the elevator positioned in cruise?
so I understand that an elevator is used to maintain cruise (straight level and unaccelerated flight) but I’m curious now about how the flaps and elevator is positioned whilst an aeroplane is trying ...
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How exactly is cruise maintained as fuel is burnt?
Can someone please explain how exactly cruise (I think it’s called straight, level and un-accelerated flight) is maintained for like an airliner please?
I’ve read a few answers on this website for ...
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When doing calculations with TSFC of multiple engines, do we add all TSFCs together?
I'm doing an assignment at the moment where I need to evaluate FOMs based off some characteristics of an aircraft. One of the parameters I need to evaluate is the best milage, which I'm doing like so:
...
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why lift coefficient decreases at supersonic flow?
In Anderson's performance book, he wrote that the higher the speed, the greater the pressure difference between two points, and as a result, the lift coefficient is greater.
But when we reach the ...
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effect of wing chord length on lift coefficient
In the bertin's Aerodynamics book
It is written that reducing the wing chord increases the lift coefficient( decreases stall angle) and as a result, the wingtip stalls earlier than the wing root
how ?
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what is the effect of cone back pressure on shock wave angle?
this is a part of anderson's book :
"Note that, for a given cone angle θc and given
M∞, there are two possible oblique shock waves—the strong- and weak-shock
solutions. This is directly analogous ...
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Pitch control in PX4 autopilot
I am trying to translate controller diagram of fixed wing px4 attitude control into mathematical form. While going through the controller diagram Fixed-Wing Attitude Controller looking into PX4 github ...
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why induced drag decreases in supersonic speed?
In John Bertin's book Aerodynamics, it is written that the induced drag at subsonic speed decreases with the increase in wing aspect ratio but the opposite happens at supersonic speed so that in ...
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Aircraft spoilers (flight spoilers, GLD)
Wondering if anyone has any examples on how a spoiler affects the Cl and Cd of an airfoil.
For example, Xfoil has plenty of data on plain flaps up to 45 degrees deflection but nothing about spoilers. ...
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Is it possible to work for free in Aerospace Industry for experiences
I am currently in a master's Aerospace Engineering program and are trying to buff up my resume by having some experiences. I heard that in IT industry, there are ways for new programmers to earn ...
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Introduction to aircraft performance [closed]
How do determine the power available and the power required for an aeroplane in a steady level flight=
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Change of absolute ceiling with weight
Let's say an aircraft has an abs ceiling of some value at the start of its cruise and then it consumes some percentage of its fuel during cruise. How will this change the new abs ceiling at the end of ...
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Could the Wright Flyer II takeoff without wind?
The Wright Flyer II could reach about 20 mph of airspeed on the track alone. The aircraft needed an airspeed of about 30 mph to make a proper takeoff (without hanging in ground effect). Before the ...
user63046
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Why pressure and temperature decreases along the length of a convergent nozzle?
I know that the pressure and temperature follows stagnation relations of pressure and temperature as well as area mach relation inside a convergent nozzle along the length. And according to that ...
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Variables of Dryden Wind Model
How to determine the turbulence intensities (σu, σv, σw), scale lengths (Lu, Lv, Lw) & Angular frequency (ω0) in the given Dryden wind model to generate wind speeds (u_w, v_w, w_w) of civil jet ...
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Would mid-air refueling for an air-to-space vehicle that flies like a plane be a viable advantage if the tech was available? [closed]
Let's take the style of an F-22 Raptor (awesome!), build the fuselage, wings, etc to handle runway takeoff horizontally and then vertically (if needed) up to orbital space flight to reach the ISS in ...
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Relation between lift force and torque produced in propeller used for vertical take-off and landing aircrafts
There are many answers for this question but none of them are specific.
I need to find the exact relation between the lift force of a propeller of specific pitch, attack angle , dimensions and ...
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What are "secondary precessional forces" that apply to boomerangs in flight?
note: This question is about the aerodynamics of boomerang flight and how it differs in microgravity environments. Some background information available here in Aviation SE: Are frisbees and ...
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How does one specialize in a certain sub-field of aerospace engineering? [closed]
I want to become an aerospace engineering but want to be specialized in Aerodynamics. How do I do this in college?
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