Abstract: A rotor assembly is provided, along with gas turbine engines for its use. The rotor assembly may include a spool defining a plurality of apertures arranged in a first row and spaced circumferentially around the spool, wherein each aperture of the plurality of apertures extends through the spool from a radially inward-facing surface to a radially outward-facing surface; and a blade assembly comprising at least two blades connected to each other via a platform, wherein each blade extends through a respective aperture.

Abstract: A paperboard box and the blank used to make the paperboard box. The paperboard box is made from a single cut blank of paperboard. When the blank is folded into a box, the box has a top surface, a bottom surface and a plurality of side surfaces that extend between the top surface and the bottom surface. At least one slot is disposed within one of the side surfaces. A translucent piece of plastic covers each slot from within the paperboard box, therein defining a window. A tear-away section of paperboard material covers the window. The tear-away section of paperboard material exposes the window when removed. The tear-away section can be on the same section of paperboard as the window or can be on a separate section of paperboard that lays over the window.