# Hacktivateed

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## What increases drag on a plane?

As an aircraft’s speed increases, drag on the aircraft generally increases much faster. Doubling the speed makes the airplane encounter twice as much air moving twice as fast, causing drag to quadruple. Drag, therefore, sets practical limits on the speed of an aircraft.

### How can drag be increased?

Drag increases with the density of the fluid (ρ). More density means more mass, which means more inertia, which means more resistance to getting out of the way. The two quantities are directly proportional. Drag increases with area (A).

Can a pilot control drag?

By using the aerodynamic forces of thrust, drag, lift, and weight, pilots can fly a controlled, safe flight.

What reduces drag on a plane?

Engineers reduce friction drag by making the airplane more streamlined, the wings narrower, or by using new materials that make the surface more smooth, decreasing the ability for the force of drag to effect it. As the roughness and surface area of the airplane decreases the friction drag will decrease.

## Why does drag increase for an airplane if it flies slow enough?

You pitch the aircraft to maintain airspeed and use power to maintain altitude. Why is this? The answer lies in induced drag, which dramatically increases as the aircraft’s angle-of-attack (AOA) increases to maintain sufficient lift at low airspeeds.

### Why does a wake cause drag?

In particular, the adverse pressure gradient on the top rear portion of the airfoil may become sufficiently strong to produce a separated flow. This separation will increase the size of the wake, and the pressure losses in the wake due to eddy formation Therefore the pressure drag increases.

Does drag depend on mass?

Drag depends directly on the mass of the flow going past the aircraft. The drag also depends in a complex way on two other properties of the air: its viscosity and its compressibility. These factors affect the wave drag and skin friction which are described above.

How do pilots control drag?

To increase drag, the plane can have many flaps it can lift vertically, which will help it increase the drag on the airplane, which is useful to help the plane decelerate or roll. To decrease drag, the plane needs to be streamlined, in a tear drop shape, but not so much so as to create too much friction drag.

## What are the four forces of flight?

These same four forces help an airplane fly. The four forces are lift, thrust, drag, and weight. As a Frisbee flies through the air, lift holds it up.

### How can I reduce my drag?

Ways to reduce it include using the handlebar drops or aerobars. Getting down low into a crouched position with elbows in reduces drag because there is a more streamlined shape and there is less frontal area.

What is the best shape to reduce drag?

the best shape to reduce drag is streamline.

Is slow flight behind the power curve?

How Slow Flight And Cruise Flight Differ. Flying at this speed means that you are on the back side of the power curve, also known as the “region of reversed command.” In normal cruise flight, you pitch the aircraft to maintain altitude, and power the aircraft to maintain airspeed.

## How does an airplane increase or decrease drag?

To increase drag, the plane can have many flaps it can lift vertically, which will help it increase the drag on the airplane, which is useful to help the plane decelerate or roll. To decrease drag, the plane needs to be streamlined, in a tear drop shape, but not so much so as to create too much friction drag.

### How are the properties of the air related to drag?

Properties of the Air. Drag depends directly on the mass of the flow going past the aircraft. The drag also depends in a complex way on two other properties of the air: its viscosity and its compressibility. These factors affect the wave drag and skin friction which are described above.

How are aerospace engineers able to overcome drag?

Overcoming drag has always been a primary design challenge for aerospace engineers. Airplanes overcome drag by generating thrust. Engineers calculate the drag on airplanes by using information about the size, shape and speed of the airplanes.

How are winglets used to reduce drag on a plane?

Modern airliners use winglets to reduce the induced drag of the wing. Two additional sources of drag are wave drag and ram drag. As an aircraft approaches the speed of sound, shock waves are generated along the surface. The shock waves produce a change in static pressure and a loss of total pressure.