Abstract: An Instrument Flight Rules (IFR) Training Device for use during aircraft pilot training in conjunction with a headset having a pair of earphones supported by earphone stirrups. In its most preferred embodiment, the training device includes, at least, a mask member for partially occluding a pilot's vision, two arm members extending rearwardly from connections with opposing sides of the mask member, and headset connecting clamps for pivotally connecting the arm members to the headset stirrups, wherein the training device is supported by the headset and movable to a location up and away from a pilot's primary field of vision.