After adding accessories or completing a modification, why should the aircraft be reweighed?

• A.Small additions accumulate and can push the aircraft over its maximum weight without being noticed
• B.Reweighing is only required after a crash
• C.Accessories never count toward takeoff weight

Why

Individually light items such as guards, lights, mounts, and larger batteries add up. Reweighing the finished configuration is the only reliable way to know the true takeoff weight.

Source: FAA-G-8082-22 Ch. 4 · ACS knowledge area: sUAS Loading and Performance · From the Loading, Performance & Airport Operations practice bank (PER-027).

Practice this category as a full test

More Weight check after repairs or modifications questions

• What happens to a multirotor sUAS as its total takeoff weight increases?
• Adding a heavier payload to an sUAS will most directly cause which effect?
• Why must the center of gravity (CG) remain within the limits set by the manufacturer?
• Before takeoff, how should a payload or attached equipment be secured?
• Under Part 107, what is the maximum allowable takeoff weight for an sUAS, including everything attached?