Solidity of the rotor is the ratio of the
- blade area to disc area.
- all up weight to blade area.
- all up weight to disc area.
Explanation
Rotor solidity expresses how much of the swept disc is actually filled by blade. It is defined as the total blade planform area divided by the area of the rotor disc. Weight is not part of the definition, which excludes the options based on all-up weight.
Jordi asking:
This question has a 100% wrong answer.It should be the opposite .The correct term is solidity=disk area/blade area.
Community Comments (2)
D
dimky Posts: 514 08.02.2022 / 20:01
Rotor solidity is the ratio of area of the rotor blades to the area of the rotor disk.
Leishman, J. Gordon (2006). Principles of Helicopter Aerodynamics. Cambridge aerospace series.
Leishman, J. Gordon (2006). Principles of Helicopter Aerodynamics. Cambridge aerospace series.
J
Jordi Posts: 198 09.03.2022 / 21:29
yeah i was confused back then thank you man for the answer. The correct is yours my answer it wwong in case someone reads it in the future. Solidity = area of main rotor blades/ total rotor disk area.
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