5.4: Cruise Power Settings

Question 1

What fuel flow should a pilot expect at 11,000 feet on a standard day with 65 percent maximum continuous power?

Answer 1

11.2 gallons per hour.

Question 2

What is the expected fuel consumption for a 1,000-nautical mile flight under the following conditions?
Pressure altitude = 8,000 ft
Temperature = 22°C
Manifold pressure = 20.8" Hg
Wind = Calm

Answer 2

70.1 gallons.

Question 3

What is the expected fuel consumption for a 500-nautical mile flight under the following conditions?
Pressure altitude = 4,000 ft
Temperature = +29°C
Manifold pressure = 21.3" Hg
Wind = Calm

Answer 3

36.1 gallons.

Question 4

Determine the approximate manifold pressure setting with 2,450 RPM to achieve 65 percent maximum continuous power at 6,500 feet with a temperature of 36°F higher than standard.

Answer 4

21.0” Hg.

Question 5

Approximately what true airspeed should a pilot expect with 65 percent maximum continuous power at 9,500 feet with a temperature of 36°F below standard?

Answer 5

183 MPH.

Question 6

Approximately what true airspeed should a pilot expect with full throttle at 10,500 feet with a temperature of 36°F above standard?

Answer 6

165 KTS.