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2 threads in Module 11: Aeroplane Aerodynamics, Structures and Systems

Module 11: Aeroplane Aerodynamics, Structures and SystemsAbout a question2 Sep 2026

mixing up mass balance and aerodynamic balance

doing m11 practice and keep getting these two confused. mass balance is the weights forward of the hinge line so the surface doesn't flutter, right? and aerodynamic balance (horn, inset hinge etc) is a completely different thing, it's just there to make the surface easier to move for the pilot and has nothing to do with flutter. keep seeing questions that seem to test one when i think it's actually asking about the other. is there an easy way to keep them straight

Rui
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Module 11: Aeroplane Aerodynamics, Structures and SystemsAbout a questionAnswered24 Aug 2026

slat slot vortex generator confusing me

keep mixing these up in practice test. as i understand it - slot is just the gap, slat is the moving panel on leading edge that opens and makes the slot, vortex generator is small separate fin that just re-energises the boundary layer, not making any slot at all. is this correct or am i missing something

Faisal A.
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