ok, this experiment is to see how the natural frequency can
affect the heli, everything has its natural frequency, like a
bridge will collapse if it is subjected to its natural frequency.
as the blades rotate, the heli’s body is subjected to vibration and
thus is vibrates…as it reaches its 1st natural frequency, u can see
it starts to experience strong displacement…then when it reaches
its 2nd natural frequency, it starts to go koyak. it is important
to know the 1st and 2nd natural frequency so dat u know wat speed
will cause it to occur. some details can’t say lah…else wait i
ganna whisked off tonight.
