What is the minimum runway width required for this aircraft?

What is the minimum runway width required for this aircraft?

• A. 100' (8 stripes)
• B. 90' (6 stripes)
• C. 110' (8 stripes)
• D. 120' (8 stripes)

Answer: (A)

The key idea is the amount of lateral space the ERJ 175 needs on a runway to keep the wingtips and engines clear of the edges during the takeoff and landing roll. For this aircraft, the published minimum width that provides enough clearance is 100 feet. That width balances the aircraft’s footprint and the required safety margins against edge contact, gusts, and minor misalignments. A narrower runway, such as 90 feet, wouldn’t leave sufficient room for safe clearance. Wider options like 110 or 120 feet exceed the minimum necessary for this aircraft, so they aren’t the correct minimum. The eight stripes notation on the 100-foot option aligns with the problem’s visual cue, confirming that 100 feet is the minimum.

The key idea is the amount of lateral space the ERJ 175 needs on a runway to keep the wingtips and engines clear of the edges during the takeoff and landing roll. For this aircraft, the published minimum width that provides enough clearance is 100 feet. That width balances the aircraft’s footprint and the required safety margins against edge contact, gusts, and minor misalignments. A narrower runway, such as 90 feet, wouldn’t leave sufficient room for safe clearance. Wider options like 110 or 120 feet exceed the minimum necessary for this aircraft, so they aren’t the correct minimum. The eight stripes notation on the 100-foot option aligns with the problem’s visual cue, confirming that 100 feet is the minimum.