1. I still don't see the new aerofoil stubbed wings ... how are they coming along?
2. If one sees the following picture carefully, one can see the hot engine exhaust plume blowing down after being reflected from the rotor. It makes the coconut tree behind the vertical stabilizer shimmer ... This plume still seems to have a sharp boundary (one can distinctly follow the right edge for example) ... Am I being just paranoid and this is as good as it gets? ... or is it the best that can be done with the budget (both weight and financial)? Or is it because the heli is just hovering? ... or is it because we are looking at a picture which captures a moment and the plume varies with time (e.g. based on the position of the blades vis-a-vis the engine exhaust)

Click to enlarge.
Thank you in advance.