However - the pig is getting tired
Speed calculation parallax NO the paralax error is negligable being 50% ish of the length of the arm if at full extension through an assumed 30deg ie about 1ft in 250ft NOT RELEVANT (even if taken to the extreme)
but you don't know any of the distances involved - the helicopter is at least many hundreds of feet from the camera and your super accurate reference points (somewhere in the woods) are thousands of feet away.
Given how 'exact' you claimed your speed measurements were and the fact that you ignored (because you hadn't even realised it existed) the parallax - how on earth is anyone expected to trust any of your other 'approximate' assertions and convenient assumptions.