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Results tagged with aircraft-performance
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user 8079
Aircraft performance covers areas such as the amount of runway required to takeoff or land and how fast an airplane can climb or descend.
2
votes
Does a lift to drag ratio of 100 imply an unattainable performance ratio of 1?
Lift to Drag, (L/D), is just a ratio, so it is perfectly possible to be greater than 1.
- 1,557
2
votes
How are performance variables accounted for when testing solar-powered aircraft?
For large solar aircraft, it is advantageous to be flying above the clouds, for predictable and uninterrupted solar performance.
There are flight test areas (airfields with a large-enough flight rang …
- 1,557
1
vote
What are the reasons for an installed engine to produce less thrust than an uninstalled engine?
Static thrust is quite more than in-flight thrust, because the efficiency of any thrust generating engine or propeller is directly related to the incoming flow.
If there's no inflow, the accelerated …
- 1,557
1
vote
What type of variation in temperature does the wing undergo?
The temperature rise that is caused by flying at high subsonic/transonic speeds is approximately 40 degrees Celsius. But this happens only at the stagnation point (near the leading edge). Ref: aerodyn …
- 1,557
1
vote
How do I calculate propeller effects on pitching moment?
The propeller causes pitching (and yawing) moments. There are two main reasons for that:
1) flow change around the fuselage (and central wing and tail)
2) thrust change.
Thrust change is simpler to …
- 1,557
1
vote
How do I choose the correct airfoil for my UAV project?
There are two methods of aircraft aerodynamic design. One method is through using known airfoils (for wing and tail surfaces) and deciding other geometric parameters iteratively while meeting certain …
- 1,557