answersLogoWhite

0


Best Answer

In general terms, in aircraft design dihedral, or a wing angled slightly upwards, contributes to the stability of the aircraft. Wing design has evolved immensely and with almost every new aircraft, new things appear. -Point of example is the upright wing extension many new airliners 'wear' - they figured out that a small amount of air 'slipping off' the wingtip added to fuel consumption. --Look at many fighter aircraft and see absolutely level or even anhedral wings (angled down) - this is because you don't want a fighter to be stable - a fighter pilot would prefer to flip over on his back in a millisecond - and many can ! - I remember the old F-4 Phantom with it's anhedral tail surfaces as being able to do a 'barrel roll' in the time you could blink !

User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why do aircraft designers use dihedral angle?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Do aircraft designers still use steam engines 2014?

Aircraft designers didn't use steam engines in 1903, either.


What produces lateral stability in an airplane?

Lateral stability is the measurement of an aircraft's stability around the roll axis of the aircraft. The roll axis is an imaginary line running from the nose of the aircraft through the tail, and is the axis around which you rotate when you "rock your wings" or when you initiate a roll for a turn. Aircraft dihedral is a measurement of how much the wings are angled upward (positive dihedral) or angled downward (negative dihedral) from where the wing attaches to the fuselage. On wings with zero dihedral in level flight, lift forces on each wing point directly up to oppose gravity. If the aircraft rolls to one side, then both wing lift forces shift to one side of vertical and the lift component reduces equally on both wings, therefore, there is no tendency to roll the aircraft into a steeper bank or back to level flight. This is called neutral stability. While the aircraft is rolled or banked to one side, the resultant components of lift from the wings result in the lift component opposing gravity being reduced and the horizontal component increasing. The aircraft will begin descending and will turn in the direction the aircraft is banked. To assist an aircraft to return to level flight with little pilot input, designers use positive dihedral; both wings angle upward so that the wing tips are "higher" than where the wing attaches to the fuselage. In this case, during level flight, both wing lift forces point slightly inward toward the fuselage. With positive dihedral when the aircraft rolls, as one wing lowers and becomes parallel with the ground, the vertical component of lift points straight up from the ground and fully opposes gravity. As the raised wing tilts further away from being parallel with the ground, the vertical component of lift is further offset from vertical and results in a reduced vertical lift component. With reduced lift on the raised wing, it descends until level and the lift components of both wings are again equal. This is called positive stability. When an aircraft is built with negative dihedral, the lift forces tend to increase the roll. This is called negative stability and can make an aircraft difficult for a pilot to control.


Why do aircraft designers use wind tunnels?

since the aircraft designer cannot make a aircraft and test... so, they will make a prototype and test in the wind tunnel.. The flow of aircraft in atmosphere will be same as flow seperation take place in wind tunnel


Which designers use applique?

which designers use a lot of applique ?


How is pi used in everyday life?

the double helix is DNA revolves around pi. pi is in the rainbow, the pupil in the eye and when a raindrop falls into water pi emerges in the spreading rings. it appears in colours and music. its also used in probability and statistics. clock designers use pi when designing pendulums for clocks. aircraft designers use it to calculate areas of the skin of the aircraft. pi is used for navigation such as global positioning (GPS)


FSX when im on outside spot view it will only let me view the back of the aircraft and will not let me view the whole 360 degrees of the aircraft. Why can't i view every angle of the aircraft?

You can either turn numberlock on and use the numberpad to select different angles, press the space bar and use the mouse to maneuver the camera, or the view (pan) assignment to a hat switch on a joy stick.


Do fashion designers use geometry?

im not a fashion designer but im guessing that fashion designers do use geometry when they are sowing clothes or designing them


What designers use patchwork?

who thr designer who use picthwork


What materials do designers use?

i think they use metal and wood


What jobs use similarity?

Building designers


What is an utility aircraft?

The perfect aircraft to use as a 'Utility Aircraft', would be any type of the Hercules Range of Aircraft.


What do aircraft use?

They use joystick