What is the capacity of each Body Reservoir?

• A. 2.0 Gallons
• B. 3.5 Gallons
• C. 6.7 Gallons
• D. 8.0 Gallons

Answer: (C)

The Body Reservoir is sized to hold a fixed amount of fluid so the system can operate for its intended duty cycle without refilling. In this aircraft, that fixed volume is 6.7 gallons, which provides the needed amount of fluid for the designed number of cycles while staying within weight and space constraints. So 6.7 gallons is the specified capacity you’ll encounter in manuals and preflight checks. The other quantities would either be too small to meet the required operating cycles or exceed design limits. 6.7 gallons is also convenient to use in calculations and fill checks (about 25.3 liters).