Maximum Fuel Transfer Weight
OK, so I'm reviewing a 747-8 AFM revision (something I periodically need to do as part of my job) when, on the Weight Limitations page, I notice something called:
Maximum Fuel Transfer Weight (MFTW)
Now, being an engine guy, I'm not normally concerned with the Weight Limitations page (I only noticed as it was a revised page), but that entry perked my curiosity. What does "Maximum Fuel Transfer Weight" really mean?
TIA