Comment on "What color should Ttabs paint his new Trike? He wants his trike to be unique- worldwide"
http://www.martynlyell.co.uk/MLM04/helmets.html Check out the above link to a helmet paint job site, although there rae heaps of them, I prefer the examples on this site. Maybe this could be a source for inspiration!!Comment on "Efficiency: Perfect pitch UAVs and airboats lead to new propellers (at least some good from UAVs / Drones)"
...nd testing for the Navy and I can assure you, more blades (along with numerous other factors), the more efficient. The latest C-130J and E-2D are examples. Now that is weighing thrust...