Warbird Tech Series This series has become one of the best sources of information for modelers and aviation enthusiasts. Each book is crammed full of excerpts, drawings, exploded views, cutaways, assembly line and repair depot photos from original tech manuals. Each book below: 104 pgs, SB, 8.5 x 11, 160-250 photos, 4-8 pgs of color photos, $16.95 ea.