Linked Questions

10 votes
6 answers
3k views

Has any aircraft ever been designed such that it could descend safely with no control input?

Has there ever been any aircraft of any type that could glide safely with no control input simply based on the way the frame of the aircraft was designed? I was trying to think of requirements for ...
OneChillDude's user avatar
  • 2,170
17 votes
7 answers
5k views

How do paraglider controls work?

I recently got into paragliding, but I am quite confused on how their controls work. I am quite aware of how the control surfaces work on fixed-wing aircraft. Let's use for example an aileron. ...
user3634713's user avatar
19 votes
3 answers
21k views

Why are high-wing aircraft more stable?

A high-wing aircraft is considered to be more stable in a side-slip because of the pendulum effect. How does the pendulum effect increase stability in high wing aircraft? This question is about high-...
user13197's user avatar
  • 11.4k
11 votes
3 answers
3k views

Why do the ailerons of this flying wing work oppositely compared to those of an airplane?

I made this simple wing glider and put some ailerons on it. I thought that the ailerons in this glider would work the same way it works on airplanes, wherein the roll will be in the direction of the ...
Adriel Mattheuz Estolano's user avatar
12 votes
3 answers
7k views

What advantages come with the wing on the Boeing Bird of Prey?

I noticed this picture yesterday of the Bird of Prey and wondered about the wing design and what advantages would come with this unique wing design compared to other aircraft? Source:(www.wired.com)
Ethan's user avatar
  • 9,349
11 votes
2 answers
2k views

Is it feasible to add an aftermarket hydrofoil to a light aircraft?

Could long, aftermarket hydrofoils be added to the water-skids of a plane (like this Cessna with pontoons or smaller) Cessna 208 Caravan not designed to have a hydro foil, to increase its ability to ...
Justintimeforfun's user avatar
8 votes
1 answer
17k views

What is the Keel Effect?

What is the Keel Effect and how does it happen? Is it the same as Pendulum Effect or it doesn't exist? The Pilot's Handbook of Aeronautical Knowledege by the FAA has an explanation that says: An ...
user13197's user avatar
  • 11.4k
2 votes
2 answers
5k views

Center of Gravity and Center of Lift stability

I have recently been reading about the center of gravity and center of lift. On the German Wikipedia there are many different graphics about the relation between the center of gravity and the center ...
Yanick Salzmann's user avatar
2 votes
4 answers
1k views

How does the "pendulum effect" affect biplanes?

A high wing airplane will correct itself (lateral stability) when disturbed because its c.g. is below the c.p. (looking at the plane from it's side), according to this forum post and the book below. ...
Jessica Ham's user avatar
10 votes
3 answers
1k views

Is this paragraph about the dihedral effect in the FAA's Glider Flying Handbook correct?

I've been reading the FAA's Glider Flying Handbook, 2013 (FAA-H-8083-13A). In chapter 3 ("Aerodynamics of Flight"), the book is discussing stability. On page 3-12, it states: Dihedral is the upward ...
Tanner Swett's user avatar
  • 5,781
3 votes
6 answers
1k views

How does the vertical height of the wings on a plane affect flight relative to its position? E.g., how does a higher high wing affect flight?

I think I understand how a high wing differentiates from a mid wing or a low wing; what I am asking is how, for instance, a very high high-wing makes itself unique in flight from a very low high-wing. ...
Barron Syams's user avatar
4 votes
3 answers
959 views

Does aircraft allways rotate about center of gravity like weather vane about pivot point?

When gust of wind hit plane form side,does plane allways rotate about center of gravity like weather vane about pivot point or CG as pivot point is just "math areegment" for easier solve ...
user avatar
8 votes
2 answers
695 views

How would a low-airspeed fixed-wing drone be designed to reduce effects from gusts and wind shear?

In a story I am working on, the characters need a fixed-wing drone that can rendezvous with a blimp, where by "rendezvous" I mean "come within a very short distance at low relative airspeed". The ...
Edward's user avatar
  • 183
7 votes
1 answer
589 views

When a paraglider pilot applies brake on one side and maintains the brake pressure, why does the roll rate eventually come to zero?

I recently started to study paragliding and I am confused about the rolling movement created when a brake is maintained. I was reading this answer How do paraglider controls work? and I am not clear ...
Alessandro22's user avatar
2 votes
5 answers
461 views

Is there any effect that contributes to roll stability even in the absence of sideslip?

Is there any physical dynamic-- involving high wing placement, "pendulum" effect of CG far below wing, or anything else-- that contributes to roll stability in a way that is NOT dependent upon the ...
quiet flyer's user avatar
  • 22.7k

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