Which mechanism primarily limits maximum achievable rotor lift in helicopter hot-and-high operations?

💡 Explanation

Decreased air density at high altitudes and temperatures reduces the rotor's ability to generate lift because the profile power increases via higher blade angles of attack, therefore lift is reduced rather than engine power loss being the primary limitation.

• Which risk increases significantly when improperly tensioning prestressing tendons in concrete beams?
• Which risk increases significantly when an aircraft’s slats are deployed asymmetrically during flight?
• Which risk increases when a post-tensioned concrete beam experiences anchor corrosion in a marine environment?
• Which mechanism causes concrete beam shear failure when diagonal tension exceeds concrete tensile strength?
• Which risk increases when operating a reciprocating air compressor's crankshaft beyond its rated speed?
• Which risk increases when a refrigeration system's pressure relief valve fails?