For a structure with top at 300 feet AGL, what is the maximum altitude a drone may be flown above ground level under Part 107 rules?

For a structure with top at 300 feet AGL, what is the maximum altitude a drone may be flown above ground level under Part 107 rules?

• A. 600 feet AGL
• B. 400 feet AGL
• C. 800 feet AGL
• D. 1000 feet AGL

Answer: (A)

Under Part 107, you must not fly higher than 400 feet above the ground. There’s an exception: if you are within 400 feet of a structure, you may fly up to 400 feet above the top of that structure. So, if the structure top is 300 feet AGL, you could be up to 700 feet AGL when you’re within 400 feet of that structure. If you’re not near the structure, you’re limited to 400 feet AGL. The given options don’t reflect the 700-foot possibility, so the key idea to memorize is the base 400-foot limit plus the 400-foot structure-top exception.

Under Part 107, you must not fly higher than 400 feet above the ground. There’s an exception: if you are within 400 feet of a structure, you may fly up to 400 feet above the top of that structure. So, if the structure top is 300 feet AGL, you could be up to 700 feet AGL when you’re within 400 feet of that structure. If you’re not near the structure, you’re limited to 400 feet AGL. The given options don’t reflect the 700-foot possibility, so the key idea to memorize is the base 400-foot limit plus the 400-foot structure-top exception.