New answers tagged commercial-aviation
0
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Why do newer engines have such wide fan blades?
I would prefer an intuitive explanation rather than a deep mathematical dive
No equations, I promise! 😉
long, thin wings are more efficient than wide stubby ones
Correct. Simplifying to the ...
- 8,302
7
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Accepted
Why do newer engines have such wide fan blades?
Fan blade evolution
The historical fan blade had the same form as a compressor blade,
Figure 3 and 4. The weight of the solid titanium blade stopped a wider
cord design. The long and slender shape ...
- 2,765
6
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Why do newer engines have such wide fan blades?
Long, slender wings impart a small momentum change to a large volume of air. Short, stubby wings impart a large momentum change to a small volume of sir. Small momentum changes generate less ...
- 20.4k
15
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Why do newer engines have such wide fan blades?
The improvement in efficiency has two roots:
Higher turbine pressure ratios. While the very early turbojets managed just 3.14:1, the most recent civil turbofans run at 50:1.
Higher bypass ratios. The ...
- 228k
4
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Why do newer engines have such wide fan blades?
Gliders utilize the long, short span wing design to achieve high efficiency as you described. This design enables them to accelerate the necessary mass of air downwards with the least amount of ...
- 26.8k
3
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What are the key differentiating factors between the flight control systems employed in unmanned drones and those utilized in piloted aerial vehicles?
The primary difference is liability, which drives a chain of other items.
There is an expectation of the various parties involved in approving, licensing and insuring aircraft that there is a clearly ...
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39
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Accepted
What plane was most likely used for this TWA transatlantic flight in 1954?
It's a Lockheed L-749A Constellation: You can tell by looking at the "N" number on the rear portion of the fuselage, and matching that with the "N" number shown on the passenger ...
- 32.4k
11
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Is it feasible for an individual with limited current knowledge to undertake the development of an aircraft from scratch?
It's not possible to solo-develop a 9-12 seat airplane to a legally flyable condition. The authorities want passenger aircraft built by people who know what they're doing, then checked again by ...
- 22.6k
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