AEROFOIL SECTIONS

#1. Two aircraft have the same wing shape and area if one has straight wings and the other swept wings how will the aspect ratios of the two aircraft compare?

• ANo change.
• BAspect ratio will increase as wings stveepback angle increases
• CAspect ratio will decrease as wing sweepback angle increases.
• DDepends on the C of G position.

#2. Which wing plan forms are most susceptible to tip stall?

• AHigh aspect ratio, elliptical, Low taper ratio, straight.
• BHigh aspect ratio, pointed, high taper ratio, swept.
• CLow aspect ratio, elliptical, low taper ratio, straight.
• DLow aspect ratio, pointed, low taper ratio, swept.

#3. Which of the following are true of low aspect ratio rectangular wings?

• AThey produce low induced drag and high profile drag.
• BThey produce low profile drag and high induced drag.
• CThey are difficult to construct and their roots stall before their tips.
• D'They are easy to construct and their tips stall before their roots.