AFOQT Practice Test

Why are tapered wings regarded as efficient?

1. They are lightweight

2. They provide better lift distribution

3. They have higher drag

4. They are easier to manufacture

The correct answer is: They provide better lift distribution

Tapered wings are regarded as efficient primarily because they provide better lift distribution across the wing's span. The shape of a tapered wing allows for a more gradual change in the wing's chord from the root to the tip. This design enhances the aerodynamic performance by optimizing how lift is generated along the wing. It helps in minimizing the induced drag, which occurs due to the formation of vortices at the wingtips when an aircraft is in flight. The effective lift distribution leads to several advantages. For one, it reduces the likelihood of stalling at the wing tips, which can occur with straight-edged wings. Additionally, the taper allows for better handling characteristics during flight and improves overall fuel efficiency as it reduces drag. In contrast, while lightweight wings can influence overall aircraft performance positively, the lightweight factor alone does not inherently improve lift distribution. Higher drag is typically a disadvantage in aircraft design, while ease of manufacturing is a consideration but does not inherently relate to the aerodynamic efficiency provided by lift distribution.