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⚖ Loading · FAA Remote Pilot Study Guide, Loading and Performance / PHAK Chapter 11LD-019 · 160 of 261

A remote pilot is hired for a real estate shoot. The drone's spec sheet shows 28-minute flight time. The mission plan is 22 minutes. On the day of the shoot, it's 96°F and the pilot has mounted a camera gimbal bringing the drone to maximum rated payload. What is the most accurate assessment?

AThe mission is safe: 28 minutes of spec time gives 6 minutes of buffer above the 22-minute plan.
BThe mission plan needs reassessment: heat and maximum payload will reduce actual flight time well below spec, potentially eliminating the buffer entirely.
CThe mission is fine as long as the pilot watches battery percentage and initiates return when it hits 20%.

Why →Spec sheet flight times are measured under ideal conditions: standard temperature (around 70°F), no payload, no wind. At 96°F and maximum payload, actual flight time may run 20–35% shorter, bringing a 28-minute drone down to 18–22 minutes and erasing the entire buffer for a 22-minute mission. Planning against spec times in non-ideal conditions is one of the most common real-world performance errors.

The trap →The 6-minute buffer sounds reassuring, but it's calculated against a spec time that doesn't apply in hot, heavy conditions. The watch-the-battery option describes a monitoring tactic that is good practice but doesn't address the root problem: the plan was built on an unrealistic baseline.

Field note →Before a summer shoot at max payload, fly a 5-minute hover test at the site: it tells you the real discharge rate. The spec sheet is a ceiling, not a plan.

SOURCE → FAA Remote Pilot Study Guide, Loading and Performance / PHAK Chapter 11CHECKED JUL 16ACS IV.A.K2MED