Found this at Powell's books in Portland. 1928 book on modern airplane construction. If it was less than $41, I'd already own it. I probably will by the time I leave, though.
The Biplane Forum is a large global active community of biplane builders, owners and pilots. From Pitts to Skybolts, to older barnstormers, all types are welcome.
The Biplane Forum is a private community. Subscriptions are only $49.99/year or $6.99/month to gain access to this great community and unmatched source of information not found anywhere else on the web.
Become a Subscribing Member and access the Biplane Forum in full!