R9R / Window Blade Delivery Added on May 28, 2013 by Connor Irick. Aluminum window blade (4 of 6) delivered on-site with Big Yella. It took a six man crew to catch the corner blade at roof height and carry it to the NE corner of the house to be installed. Check out design drawings here.Check out Architect's renderings here. 2 more blades to deliver, then awnings!