What is your bump depth set at?
Is this a blinn material?
You might want to think about adding rivets to the body as most planes of that type were constructed of thin metal panels
Darkon the Incandescent
Red bellows of flame have blackened my stones
Convulsing my frame and cracking my bones
Hell's dragons of steel who roar in their chains
Crawl into my caves to suck out my veins.....
-The Mountain P.F.M.