Kerbal Space Program

Not sure if this qualifies as bug or feedback, I went with bug just because of the degree of which it was out of line.

Struts and fuel lines create drag drastically out of line with their footprint, and that of other similar (and much larger) parts. Attached is a screenshot of struts and fuel lines creating 10x the drag of a cubic-ocag (roughly equivalent in size, but should be less aerodynamic), 2x the drag of a closed medium landing gear, 1.6x that of the cockpit on the front of the aircraft, 1.25x that of the aircraft's engine, and even slightly higher than that of the large radial air intake mounted to the side of the plane. Basically a tiny strut is causing more drag than a giant open mouth of an air intake and significantly more than the cockpit at the nose of the plane. In fact, if you look at the roll/yaw you'll see a significant amount of control is being exerted just to keep the aircraft flying straight with 4 struts and 2 fuel lines on one side of an otherwise perfectly balanced craft.

To reproduce; launch the attached craft and enable aero data in action menus.

This existed in 1.0.5 as well, but I didn't pick up on it until recently because the weaker joints in 1.1 require significantly more strutting, and smaller craft were actually being very noticeably impacted aerodynamically when adding struts to strengthen them.

Also note that the craft has struts and fuel lines of differing length and using either the cubic-octag, or the wing as the base attachment point. Neither The length nor which part they were attached to had any impact in the drag as seen by the equal values across all of them in the screenshot. I would recommend reducing the drag of struts and fuel lines by at least 10x compared to their current values. This would bring them in line with that of a cubic-octagonal strut (which is still a little high especially for struts, but much more reasonable). If you wanted to get more in depth I'd recommend 5% of current drag when at minimum length, and 10% of current drag when at maximum length, but I understand that calculating the length of the strut for drag may be too much work/overhead, in which case a constant 10% of current would suffice. (Or 5% for struts, 10% for fuel lines, as fuel lines are thicker)