Linked Questions
16 questions linked to/from Do helicopters use more fuel when hovering?
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Does a helicopter actually have a lower rate of fuel consumption in cruise than in hover? [duplicate]
Recently the thought of autogyro flight as "powered autorotation" came to mind. The rotor acts like a fixed wing, providing lift, while a separate source of thrust provides forward motion.
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Does the downwash velocity calculation apply to hovering flight? [duplicate]
After reading a very interesting interplay between two writers attempting to answer this question of helicopter downwash velocity, it occurred to me that, although this calculation:
$V_i = \sqrt{\...
- 21.3k
41
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9
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Can all helicopters hover, and how long does it take to "stop"?
Following the accident of Kobe Bryant's helicopter N72EX, there are a few things that puzzle me:
While waiting for clearance to fly close to Burbank airport, the helicopter didn't "stay in place", ...
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35
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Why would a helicopter climb in a spiral?
I was just watching the James May's Toy Stories Christmas Special Flight Club*, and in it he commented that the helicopter was making a spiral climb to 8,000'. Why would the pilot spiral, not just ...
- 16.4k
35
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Why do helicopters not roll over when flying forwards?
Related to this answer: with velocities so different at forward going and rearward going blade, why does the helicopter not roll over? The higher airspeed at the forward going blade should cause more ...
- 62.9k
12
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3
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Do helicopters fly holding patterns under IFR?
If a helicopter is flying an IFR flight plan, and the airspace around the destination is busy, will controllers tell them to fly holding patterns just like planes do? Or will they hover at the holding ...
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Why are aerial taxis multirotored, instead of a single rotor?
source -- image shows Volocopter's design
I find that in the designs of aerial taxis, particularly in Volocopter's design, the design consists of a system of multirotors.
What is the main reason for ...
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How does flying a helicopter compare with flying a fixed wing plane?
There has been a lot of interest in the ease of flying a helicopter recently, and questions have arisen on how easy it is to control a helicopter in less than ideal circumstances such as low ...
- 62.9k
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2
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How is hypothetical max altitude of a helicopter calculated?
How do engineers calculate the hypothetical max altitude of a helicopter if the mass, altitude and length/curvature of blades are known?
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5
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Could a helicopter fly like a plane this way?
Could a wing be added to a helicopter to allow the entire craft to tip 90 degrees forward allowing it to fly faster like a plane using a fixed wing and leaning into the wing for lift?
I understand ...
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5
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Relationship between hover power and climbing power
I've been told that, generally speaking, rotor efficiency increase with rotor diameter. This is because the thrust generated by a helicopter rotor equals the mass of air moved times the delta V of the ...
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What is the relationship between speed, torque and pitch in a helicopter?
Can someone clarify the relationship between aircraft speed, torque, prop length and pitch and how this applies to a helicopter.
In addition I want to know if the amount of lift a helicopter ...
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2
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Vertical autorotation with passive rotor
Let's say we have a simple hollow cube(chosen for simplicity) with outside side length=10cm, thickness=5mm (or another arbitrary shape with arbitrary dimensions).
Clarification: I am NOT talking ...
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4
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3
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Can a wind gust below the rotor affect the lift force in a helicopter?
If a helicopter is hovering and a very strong, narrow and focused wind gust comes from the front and passes few feet below the rotor blade without touching the fuselage or any part of the aircraft for ...
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Between hover and moving straight forward, which one is this Sikorsky uses more power?
Source:
Consider this Sikorsky–Boeing SB-1 Defiant is being flying forward level and straight and being hover, which state is consumes more power? For both states, we assume that air is very still and ...
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