2026 QUESTIONS WITH SOLUTIONS GRADED A+
● ERJ 170/175 Stall Speed (Clean). Answer: Approximately 115 knots indicated airspeed at
maximum landing weight.
● Flap 1 Speed Limit. Answer: Maximum speed with Flaps 1 extended is approximately 230
knots.
● Flap 4 Speed Limit. Answer: Maximum speed with Flaps 4 extended is approximately 180
knots.
● Flaps Full Speed Limit. Answer: Maximum speed with Flaps Full extended is
approximately 145 knots.
● Landing Gear Extension Speed (VLE). Answer: Maximum speed at which the landing
gear may remain extended, approximately 220 knots.
● Landing Gear Operation Speed (VLO). Answer: Maximum speed at which landing gear
may be extended or retracted, approximately 200 knots.
● Mmo. Answer: Maximum operating Mach number; for ERJ 170/175 approximately Mach
0.82.
● Vmo. Answer: Maximum operating indicated airspeed; for ERJ 170/175 approximately 320
knots.
● Turbulence Penetration Speed. Answer: Approximately 250 knots / Mach 0.76 for the
ERJ 170/175 in turbulence.
● Minimum Fuel for Dispatch. Answer: As specified in the flight release; must include
required reserves per FAR 121.
● Fuel Reserve Requirements (FAR 121). Answer: Airlines must carry enough fuel to fly to
destination, alternate, and an additional 45 minutes at normal cruise.
● ETOPS. Answer: Extended Operations; allows twin-engine aircraft to fly routes more than
60 minutes from a diversion airport.