Questions tagged [autogyro]

An autogyro, also known as gyroplane, gyrocopter, or rotaplane, is a type of rotorcraft which uses an unpowered rotor in autorotation to develop lift, and an engine-powered propeller, similar to that of a fixed-wing aircraft, to provide thrust.

Filter by
Sorted by
Tagged with
0
votes
1answer
94 views

Would this concept of Autogyro/Gyroplane be efficient or practical?

First, i'm quite ignorant on aerospace engineering, so I hope I don't make too many incorrect assumptions. If you don't know what an Autogyro/Gyroplane is, here is the Wikipedia article of it. The ...
4
votes
1answer
246 views

Can anyone identify this Autogyro?

I've found similar autogyros on the internet, but not this one. Most autogyros appear to have 2 cockpits and this autogyro only has one. Although I have matched its angle-tipped wings with other ...
1
vote
3answers
142 views

Is there a way for the helicopter rotor to get its power half by wind, half by engine?

Imagine a gyroplane, if something happen mid-flight (when the plane is basically an autogyro and the engine provides no power to the helicopter rotor) and just the wind generated by forward flight can ...
0
votes
0answers
70 views

What effect do urban wind conditions have on operating tiltwing aircraft and gyrocopters?

From this research it seems there are quite a lot of strong wind in suburb residential area and around high-rise buildings. High-rise buildings would also create wind tunnel effect and eddy winds. ...
3
votes
2answers
196 views

Sub-ideal Autorotation in Rotorcraft

I have another AuRo question for you. When a Helicopter autorotates (ideally) it is in the turbulent wake state and there is virtually no flow through the rotor disk (figure of Leishman attached). Now,...
1
vote
0answers
93 views

Volume of air deflected down by a wing?

When trying to calculate, from first principles, the lift produced by the rotor of an autogyro, I have tried imagining the rotor as a circular flat wing set at an angle to the relative wind. The mass ...
0
votes
0answers
63 views

To which side did the first Cierva autogyros fall?

The first Cierva autogyros, before the introduction of the flapping articulation, fell to the right when the take-off was attempted, according to witnesses. That had an explanation, as the rotor ...
1
vote
2answers
94 views

Clarification on autogyro thrust formula

I'm slightly confused regarding the formula quoted here: How to calculate the amount of thrust of a autogyro during auto rotation? When they say thrust is equal to the weight. Do they mean use earth ...
0
votes
3answers
174 views

Autorotation: Positive Pitch during descent phase possible?

I was wondering if a rotorcraft, that descends very slowly compared to its nominal rotor rotation rate (for example an RC Helicopter vertically autorotating with 3m/s descent rate and 2200RPM on the ...
0
votes
1answer
138 views

What are the applications, advantages and limitations of Gyrodyne rotorcraft?

Gyrodyne is a VTOL rotorcraft. It has ability to power both rotors and propellers for generating lift and thrust. What makes it of lesser popularity than helicopters. Are there any applications of ...
4
votes
2answers
783 views

Why do autogyros exist? [duplicate]

This question has been intriguing me for some time. In Autogyro the rotary blades merely acts as what fixed wings act in normal aircrafts to generate lift. So why not simply have a fixed wing instead ...
1
vote
1answer
284 views

Grand Canyon flying minimum altitudes

I'm looking to visit the Grand Canyon this September. I fly an open-cockpit two-seater gyroplane - a Magni M16. Its ceiling is around 13k' and I'm not wild about trying to reach the top end of that. I'...
4
votes
1answer
606 views

Why autogyros use pusher-, whereas, piston-engined planes use puller-configuration?

I found that most modern gyrocopters use a pusher-configuration, whereas, most piston-engined planes use puller-configuration. Since the pusher-configuration has major disadvantages, are there ...
67
votes
3answers
16k views

Is this XKCD comic list about autogyro features accurate?

I recently came across this XKCD comic which gives you a number of facts about autogyros: Image is copyright XKCD, licensed under CC 2.5 BY-NC I'm not sure if this is satirical or really drawing ...
152
votes
3answers
47k views

Why does XKCD say that autogyros will crash if the pilot reacts to a stall as in a normal airplane?

This recent XKCD comic is all about autogyros. Image is copyright XKCD, licensed under CC 2.5 BY-NC The note at the bottom is what got my attention Extremely safe, unless you do the one thing you ...
10
votes
1answer
27k views

What are the advantages and disadvantages of autogyro aircraft?

What are the advantages and disadvantages of autogyro category of aircraft? Is there a maximum speed an autogyro can attain?
2
votes
1answer
356 views

How does the forward speed of an auto-gyro relate to the rotation speed of the rotor during auto-rotation?

In my other question I was looking for a relation between the forward speed and the thrust (lift) of an auto-gyro. I have come to the conclusion that for an auto-gyro in auto-rotation the forward ...
1
vote
2answers
1k views

How to calculate the amount of thrust of a autogyro during auto rotation?

When a autogyro/gyrocopter is in a horizontal steady flight the rotor should be able to provide enough thrust using the auto rotation principle if the horizontal speed can be regulated by the vertical ...
4
votes
3answers
4k views

Is it possible to have dual contra-rotating rotors on a gyrocopter or gyroplane? Are there disadvantages that would outweigh the extra lift?

Is it possible to have dual contra-rotating fixed-pitch rotors on a gyrocopter or gyroplane? It would seem to me that it would provide a lot more lift. I am wondering if any disadvantages would ...
1
vote
0answers
183 views

Is it technically feasible to dampen the control stick in an Autogyro?

The control stick in a gyrocopter is too wobbly for a glider pilot's liking. Is there a way to dampen the stick in a Gyrocopter [Eg. the Air command] to make it feel as smooth and light as one would ...
7
votes
2answers
2k views

Can an Autogyro with wings survive a rotor mechanical failure? Will it be safer?

I'm not an expert but as I understand autogyro sustentation relies on the rotor. If the rotor breaks, the aircraft will fall as a rock to the ground... But If the autogyro was built as a tractor ...
18
votes
3answers
6k views

What are the uses of gyroplanes?

From my understanding, a gyroplane (autogyro): Is a rotocraft. Uses an unpowered rotor for lift generation, instead of wings. Uses a propeller for horizontal translation like an airplane. Cannot take ...
1
vote
1answer
3k views

What is an autogyro, and why would I ever want to fly one? [closed]

Autogyros seem to be one of those mythical creatures: we know there are actually a few of them out there and they're supposed to be fun to fly. What are they really; how do they work? And how do you ...