In the normal hover attitude with a 4-degree nose-up angle, indicated fuel is approximately what percent less than actual fuel?

In the normal hover attitude with a 4-degree nose-up angle, indicated fuel is approximately what percent less than actual fuel?

• A. 10%
• B. 5%
• C. 15%
• D. 20%

Answer: (A)

Attitude changes how the fuel quantity gauge reads because the indicator responds to the fuel level along the tank’s geometry, not to the total volume when the helicopter is tilted. In a normal hover with about a 4-degree nose-up, the fuel shifts in the tank in a way that the sensor (float or probe) measures a lower vertical height than the actual amount of fuel present. The gauge is calibrated for level flight, so tilting by 4 degrees causes an under-reading of the fuel. The standard result for this condition is that indicated fuel is roughly 10% less than actual fuel, so you’d expect about a 10% discrepancy.

Attitude changes how the fuel quantity gauge reads because the indicator responds to the fuel level along the tank’s geometry, not to the total volume when the helicopter is tilted. In a normal hover with about a 4-degree nose-up, the fuel shifts in the tank in a way that the sensor (float or probe) measures a lower vertical height than the actual amount of fuel present. The gauge is calibrated for level flight, so tilting by 4 degrees causes an under-reading of the fuel. The standard result for this condition is that indicated fuel is roughly 10% less than actual fuel, so you’d expect about a 10% discrepancy.