If you’ve ever wondered how to get a plane to fly faster, this is the blog for you. It’s all about improving aircraft performance!
Aircraft performance is a critical part of an aircraft’s design. Some factors that impact aircraft performance are:
• Climb rate
• Range
• Cruise speed
• Maximum speed
• Stall speed*
*Note: Stall speed is the minimum airspeed at which an aircraft will still be able to fly.
Since the first powered flight by the Wright brothers, improving aircraft performance has been an ongoing process of trial and error. By testing and retesting, new ways to improve aerodynamics, decrease weight, and increase power have been discovered. Ultimately this is how we’ve ended up with modern jets that fly faster than the speed of sound!
Flying a plane requires two things: thrust and lift. Thrust comes from engines and is the force that gets the plane moving in the first place. Lift comes from the wings and is what keeps the plane aloft.
To get more thrust you need more powerful engines. To get more lift you need to do three things: increase the wing area, adjust it to make it as smooth as possible, or change its shape so that it creates less drag (the amount of resistance created as it slices through the air).
There are two main drag forces acting on an airplane: parasitic drag and induced drag. Parasitic drag is caused by interference between parts like wings, flaps, wheels, etc., while induced drag comes from lift itself. In short, parasitic drag is caused by parts of the plane getting in each other’s way while induced drag is caused by those same parts doing their jobs properly!
This page is about ways to improve the performance of your aeroplane.
At first glance it may seem that there are very few ways to increase the speed of an aircraft. The maximum forward speed of an aeroplane depends on how much power it can generate, and how much drag it has. There are only two ways to increase the power: put in a bigger engine, or make the aircraft lighter. So there are only two ways to increase the speed: carry a bigger engine (more weight), or reduce the weight of the aircraft itself.
Why aeroplanes are slow
There are many reasons why aeroplanes fly so slowly. Here are some of them:
Aeroplanes have a limited amount of lift, so they cannot fly above certain altitudes where air density is too low.
Aeroplanes have a limited amount of power, so they cannot fly at high Mach numbers unless they have very good streamlining.
The best aeroplane designs all have very draggy wings and bodies, because they need their large wing areas to generate huge amounts of lift at low speeds.
In order to improve the performance of an aircraft, there are a number of parameters that must be considered; each parameter is interdependent on one or more of the others.
Weight
To reduce the weight of an aircraft, certain materials may be substituted for others. For example, instead of a steel fuselage, aluminium tubing may be used in its place. This material substitution may require other changes in structure and design to compensate for the lower strength of aluminium compared with steel. In addition, because aluminium is a good conductor of heat, extra insulation may be required to reduce heat loss from the cabin due to conduction through the fuselage tubing.
Drag
In order to reduce drag and thus increase the speed and range of an aircraft, a number of modifications can be made. One way is by reducing the wetted area by streamlining components such as wing tips and cabin fairings. Another method is to improve the aerodynamic shape of various components such as wings and landing gear doors so that flow separation caused by adverse pressure gradients occurs at higher speeds than before modification. The use of laminar flow airfoils offers increased lift-to-drag ratio and reduced drag when compared with conventional airfoils (see Figure 1).
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FB is a contributor at FuelBirds. We are committed to providing well-researched, accurate, and valuable content to our readers.
