Which statement about the Beechjet 400A is true?

• A. The fuel system provides an independent fuel supply for each engine
• B. The fuel system is designed for operation between sea level and 45000 feet
• C. The fuel storage system includes two independent wing tanks, two forward fuselage tanks, two mid fuselage tanks, and an aft filler tank
• D. All of these statements are true

Answer: (D)

The Beechjet 400A fuel system is designed to keep each engine fed reliably while also allowing fuel balancing and CG management across its flight envelope. Each engine has its own dedicated feed from its wing tank, backed by pumps, so operation doesn’t depend on the other side. At the same time, a crossfeed option exists to transfer fuel between tanks if needed to balance the airplane or during certain conditions, ensuring continued engine feed even if one side is low.

The system is built to function across the airplane’s operating altitude range, which includes routine operation up to high altitude. That means the pumps, lines, and venting are rated to perform as altitude changes occur, keeping fuel flow stable as you climb toward and operate near the airplane’s service ceiling.

The fuel storage layout is arranged to support both fuel quantity and balance, incorporating two wing tanks and multiple fuselage tanks spread through the forward, mid, and aft sections. This combination gives adequate reserve and enables CG control as fuel is burned, with an aft filler tank contributing to fuel management and stability.

All of these characteristics describe the Beechjet 400A fuel system, so the statement that all of them are true best captures the system’s design.