For your consideration: How about curvature for the wing shadows on the nacelle since the combination of the swept wing and round nacelles create same?
Wow thanks guys, great encouragement considering I was tearing my hair out over this for the past 2 days.
To Ugo regarding highlighted V on tail, help yourself and have fun.
To Vacajun, I did an experiment with a cylinder, a straight edge and a light source a while back and I believe the shadow was also straight. As long as your object is 90 degrees to your viewpoint. I will check this again with a more elaborate experiment when I get chance.
Relative to straight wing shadow lines on curved fuselages: Only true if there is no sweepback to the wing leading edge. Sweep back or forward results in curved shadows on circular fuselages or nacelles. Gamary and I discussed this for while last summer and it drove me to do my own experiment. In the picture, the sun is at the upper right at about the 2 o'clock position shining on my supersonic cardboard tube and business card wings. I used a swept-back, unswept, and swept forward card to demonstrate. Notice the curvature of the shadow and how it is different directions for sweep forward and sweep back, while being straight for an unswept wing.
As a member of our crazy bunch, this always bothered me and I developed a computer program that will define the shadow lines for various sweeps and fuselage shapes. Boy, am I sick!!!