Questions tagged [aerospace-engineering]
Aerospace engineering is the primary branch of engineering concerned with the research, design, development, construction, and testing of aircraft and spacecraft.
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Why do air-to-air missiles have tail fins?
That sounds like a stupid question but hear me out.
For something like a rocket where the goal is to fly in a straight line the use of the tail fins is obvious. But air-to-air missiles are designed to ...
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Failure criteria for CFRP single plate bolted joint
Which equation can be used to find failure based on ply orientation.
Tension,shear & bearing faliure to validate against fem analysis
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What aerodynamic equation should be used to determine the drop in air pressure over an airfoil embedded within a vertical pipe?
I have a conceptual idea for a thruster for a VTOL aircraft/drone which should produce lift by utilizing a upward-flowing airflow to produce low air pressure over the top surface of an airfoil that is ...
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Lift/Drag on sheet metal airfoils
I watched a youtube video about a propeller-driven bicycle and it brought me back to my university days of designing propellers. In college, we used NACA airfoils and used the publically available ...
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How does adding a long fixed pole on top of a drone with a certain mass change the dynamics of a quadcopter?
I have to model a quadcopter with a long rod on top of it so I can later design a control system for the system. I'm a bit lost as to how the dynamics of the system change by adding the rod, can ...
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Are these units correct for Hp/W
using the table provided, and how it says the Velocity should be in mph, is it correct to say that the units of hp/W only taken from this table, using the formula from the table is mph also?
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Where is best place to install vortex generators if race car diffuser stall?
If flow separate in high AoA diffuser, vortex generators can help to delay separation.
Where is best palce to install VG for flat floor + diffuser configuration , in front leading edge of diffuser or ...
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Simply supported beam with a truss
i am trying to find out the best way to approach a design task for a plane wing with a truss support. i am treating the wing as a simply supported beam but i have no idea how to incorporate the truss ...
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Is There A Schematic of Hoeltzer's Mischgerät V2/A4 Electronic Guidance Computer?
As a retro computing hobby project, I'm researching Helmut Hoeltzer's (Hölzer's) work on the Mischgerät analog guidance computer for the V2/A4 ballistic missile, with the goal of validating a ...
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How to model a cable for control?
I'm studying a system in space that uses centrifugal force to keep four tip masses extended. The system is defined as follows : a central hub that has rotation freedom in all directions, four tip ...
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What are the practical applications of Centre of Mass & Centre of Gravity?
I have learnt COM and COG are different things if we have non uniform gravitational field i.e. mass will be same at anywhere but gravity will be different. I want to find practical examples of both ...
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Why wind turbine dont use high lift coefficient airfoils?
All wind turibne use low lift coefficent airfoils from 1.0 to 1.5.
Why not use high CL airfoils to get maximum torque?
http://airfoiltools.com/airfoil/details?airfoil=s812-nr
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Why wind turbine with more blades rotate slower compare to one or two blades?
Why wind turbine with more blades rotate slower(lower RPM) than turbine with just one or two blades, if both has equal diameter on same wind speed?
Often people say more blades have more drag, but ...
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Predicting thrust of a Motor
I want to be able to predict the load a single motor and propeller can carry, so I can choose an appropriately sized propeller and powerful enough motor.
I say predict because I'm first going to ...
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Is the main goal for wind turbines to take maximum energy for a given diameter?
If you increase the number of blades, that will increase torque, for the same RPM you get more power,...simple logic
So why only three blades, is main goal for wind turbine take maximum energy for ...
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