These blades are only 5/16" thick at the highest center point with aerodynamic slopes that gently taper down toknife sharp points on both edges! Cuts through the air like a bullet!!!Noise Free and VERY fast!
A very professional design! Twisted and tapered for powerful and fast rotation! Made of hardened #T6 aircraft aluminum with nice sharp edges for silent performance.
Hubs
HUB6 - 6 blade hubs / Makes 58" diameter turbines. HUB3 - 3 blade hubs / Makes 62" diameter turbines. HUB12 - 6 blade hubs/ Makes 64" diameter turbines 17mm hubs are made from top quality steel