How do you cross feed?

How do you cross feed?

• A. Pilots control which tank feeds which engine; normally the right engine pulls from the right tank, and the left from the left; imbalance allowed to pull from opposite tank.
• B. The flight crew cannot influence feed; automatic cross-feed occurs.
• C. Cross feed means fuel is transferred from wing to center always
• D. You must shut down one engine to cross feed

Answer: (A)

Cross feed is a manual control of the aircraft’s fuel system that lets you connect tanks to different engines as needed. The key idea is that you can choose which tank feeds which engine, rather than being locked to a fixed pairing. Typically, each engine draws from its corresponding wing tank, so the right engine uses the right tank and the left engine uses the left tank. But you have the option to draw from the opposite tank if you need to balance fuel or if one side is running low. That flexibility is what cross feeding is all about: you actively control the crossfeed to direct fuel where it’s needed. The other ideas aren’t accurate because cross feed isn’t automatic, it isn’t defined as always transferring from wing to center, and you don’t have to shut down an engine to cross feed. You can cross feed while both engines are running to maintain balance or extend flight when a tank is low.

Cross feed is a manual control of the aircraft’s fuel system that lets you connect tanks to different engines as needed. The key idea is that you can choose which tank feeds which engine, rather than being locked to a fixed pairing.

Typically, each engine draws from its corresponding wing tank, so the right engine uses the right tank and the left engine uses the left tank. But you have the option to draw from the opposite tank if you need to balance fuel or if one side is running low. That flexibility is what cross feeding is all about: you actively control the crossfeed to direct fuel where it’s needed.

The other ideas aren’t accurate because cross feed isn’t automatic, it isn’t defined as always transferring from wing to center, and you don’t have to shut down an engine to cross feed. You can cross feed while both engines are running to maintain balance or extend flight when a tank is low.