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⚖ Loading · FAA Remote Pilot Study Guide, Loading and Performance / PHAK Chapter 11LD-019 · 160 of 269

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.✓ Correct answer
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.K2MEDreport an issue
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