What is the VMO up to 8000 ft?

What is the VMO up to 8000 ft?

• A. 275
• B. 300
• C. 320
• D. 340

Answer: (B)

VMO is the maximum operating speed expressed as knots indicated airspeed (KIAS) that you may fly in the airplane’s lower altitude range. For the ERJ 175, this limit is 300 KIAS up to 8,000 feet. That means you must not exceed 300 knots indicated until you reach 8,000 ft. Beyond 8,000 ft, the limiting factor becomes the Mach number (MMO) rather than VMO, so the speed limit transitions to a Mach value instead of a higher KIAS. The option 300 is the correct value because it matches the published VMO up to 8,000 ft. The other numbers don’t represent the ERJ 175’s VMO in that altitude band (they would either exceed the published limit or pertain to a different regime or aircraft).

VMO is the maximum operating speed expressed as knots indicated airspeed (KIAS) that you may fly in the airplane’s lower altitude range. For the ERJ 175, this limit is 300 KIAS up to 8,000 feet. That means you must not exceed 300 knots indicated until you reach 8,000 ft. Beyond 8,000 ft, the limiting factor becomes the Mach number (MMO) rather than VMO, so the speed limit transitions to a Mach value instead of a higher KIAS.

The option 300 is the correct value because it matches the published VMO up to 8,000 ft. The other numbers don’t represent the ERJ 175’s VMO in that altitude band (they would either exceed the published limit or pertain to a different regime or aircraft).