"Steel Windmill Stocks and the Denver Accident of October 2011"
"Windmill Sails and Stocks: History of Sail Construction"
Specification for New Midlings and Sweeps at Willesborough Mill
Wicken Windmill: windshaft, stock & clamp fitting options
Front Stock & Whip: showing sail clamps
Front Stock & Whip: sail bolt locations
Front Stock, Whip, & Sail Frame: general layout
Major Sail Components: early sketch of sail stock