Since our airplane moves so painfully slow, much slower than any other heavy-lift airplane on the market, we have decided to try and machine our own propeller. Since the propeller is already fully designed, we are trying to machine the propeller in the next couple of weeks, and even if our propeller is no better than a commercially available one, we will have learned something new and we will not have wasted too much time. However, I need to ask: Can the propeller be machined out of a solid piece of hard maple, or do we have to laminate several pieces of maple to make the propeller? The propeller will only be about 14 inches in diameter, so I'm not talking about making a huge propeller here. If the propeller must be machined out of laminated wood, how should the wood be laminated?</p>