Great work, Dano, but I do have a bit of crit.

As this thing is supposed to be dilapidated, I don't think that the seams are too thick. As time goes on, structural supports wear down and oxidize, and the gaps will get bigger between panels.
On the other hand, I think that rather than one consistent lineweight going through the whole thing, some should be thinner. 3-5 different line thicknesses would've served you better and contributed to the distressed feel of the heli.
Also, I think that the paint could've benefited from the dab of a grunge brush in parts to show perhaps it worn through to the metal or something. The wear is just a bit too consistent.