a couple of polishing details
Another polish for you
pattern 
, did you know the "angle of incidence" is the "angle of attack", I didn't until put right by a highly credentialed test pilot just a week or so ago on Pprune, apparently "aircraft wings are installed with a slight positive "angle of incidence" should be referred to as simply "incidence" or "rigging incidence". Angle of incidence is synonymous with angle of attack, the same thing.