Abstract: Golf club heads with improved aerodynamic properties. In an example, the golf club head has a club head frontmost point and a club head rearmost point, and the golf club head comprising: a striking face, the striking face defining the frontmost point; a sole connected to a bottom side of the striking face and having a rearmost point; a crown connected to a topside of the striking face and having a rearmost point; and a skirt, wherein the rearmost point on the sole is an intersection point of the sole and a lower boundary of the skirt, and the rearmost point on the crown is an intersection point of the crown and an upper boundary of the skirt, and wherein the lower boundary is a skirt height above a ground plane, and the skirt height satisfies a head-length-to-skirt-height ratio less than 6:1.

Abstract: Golf club heads with improved aerodynamic properties. In an example, the golf club head has a club head frontmost point and a club head rearmost point. The golf club head may include a striking face and a sole connected to a bottom side of the striking face. The sole has a rearmost point and may have a closing ascent angle of less than about 35 degrees. The club head also includes a crown connected to a topside of the striking face. The crown has a rearmost point and may have a closing descent angle of less than about 35 degrees. The closing descent angle may also be within 85%-115% of the closing ascent angle of the sole. Toeward and heelward tripping structures may also be incorporated on the hosel to further improve aerodynamic properties of the golf club head.

Abstract: The disclosure relates to high-performance metal-wood type golf clubs. An example golf club head includes a heel-side midsole weight, connected to the sole, having a center of mass positioned at a distance (DAH) rearward from the frontmost point, measured in a front-to-back direction, between 30-70% of a clubhead length (LFB); and a width (WCG-AH) heelward of the face center, measured in a heel-to-toe direction, between 5-40% of a clubhead width (CW). The example golf club also includes a toe-side midsole weight, connected to the sole, having a center of mass positioned at: a distance (DAT) rearward from the frontmost point, measured in the front-to-back direction, between 30-70% of the clubhead length (LFB); and a width (WCG-AT) toeward of the face center, measured in the heel-to-toe direction, between 5-40% of the clubhead width (CW).

Abstract: A supersonic aircraft is disclosed herein. The supersonic aircraft comprises one or more fuselages, one or more wings, at least one wing-mounted engine, at least one inlet mounted on the upper surface of or above the wing, an upper wing surface propulsion system fairing, and a lower wing surface propulsion system fairing or lower wing surface modification to account for the presence of the engine.

Abstract: Golf club heads with improved aerodynamic properties. In an example, the golf club head has a club head frontmost point and a club head rearmost point. The golf club head may include a striking face and a sole connected to a bottom side of the striking face. The sole has a rearmost point and may have a closing ascent angle of less than about 35 degrees. The club head also includes a crown connected to a topside of the striking face. The crown has a rearmost point and may have a closing descent angle of less than about 35 degrees. The closing descent angle may also be within 85%-115% of the closing ascent angle of the sole. Toeward and heelward tripping structures may also be incorporated on the hosel to further improve aerodynamic properties of the golf club head.

Abstract: Golf club heads with improved aerodynamic properties. The golf club head may include a striking face, a sole, a crown, and a plurality of vortex generators positioned in an aft half of the sole or an aft half of the crown. The vortex generators may be positioned on an inlay that is received by a recess of the crown or the sole. The inlay may be manufactured separately from the remainder of the club head body, such as the crown and the sole.

Abstract: Metal-wood type golf club heads having improved aerodynamic properties are disclosed. The golf club head includes a striking face; a sole connected to a bottom side of the striking face; a crown connected to a top side of the striking face; and an asymmetric hosel extending from the crown at a heelward side of the golf club head, the hosel including a hosel opening configured to receive a golf club shaft defining a shaft axis. The hosel includes at least one tripping structure on an exterior of the hosel. At the midpoint, a frontmost point of the exterior of the hosel is a distance DHF1/2 from the shaft axis; and at the midpoint, a rearmost point of the exterior of the hosel is a distance DHR1/2 from the shaft axis, the distance DHR1/2 is 25%-70% greater than the distance DHF1/2.

Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms, and the entire the core has a deflection ranging from 0.130 inch to 0.105 inch under a load of 100 kilograms. A mantle layer is disposed over the core and a cover is disposed over the mantle.

Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms, and the entire the core has a deflection ranging from 0.130 inch to 0.105 inch under a load of 100 kilograms. A mantle layer is disposed over the core and a cover is disposed over the mantle.

Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms, and the entire the core has a deflection ranging from 0.130 inch to 0.105 inch under a load of 100 kilograms. A mantle layer is disposed over the core and a cover is disposed over the mantle.

Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms, and the entire the core has a deflection ranging from 0.130 inch to 0.105 inch under a load of 100 kilograms. A mantle layer is disposed over the core and a cover is disposed over the mantle.

Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms, and the entire the core has a deflection ranging from 0.130 inch to 0.105 inch under a load of 100 kilograms. A mantle layer is disposed over the core and a cover is disposed over the mantle.

Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms and the core has a deflection ranging from 0.120 inch to 0.090 inch under a load of 200 pounds. An inner mantle layer is disposed over the core, an outer mantle is disposed over the inner mantle layer, and a cover is disposed over the outer mantle.

Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms, and the entire the core has a deflection ranging from 0.130 inch to 0.105 inch under a load of 100 kilograms. A mantle layer is disposed over the core and a cover is disposed over the mantle.

Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 100 kilograms and the core has a deflection ranging from 0.120 inch to 0.095 inch under a load of 100 kilograms. A mantle layer is disposed over the core and a cover is disposed over them mantle.

Abstract: A golf club (20) having a club head (22) with an interchangeable shaft (40) is disclosed herein. The golf club (20) includes a tube (44, 144) mounted in the club head (22), and a sleeve (46, 146) mounted on a tip end (50) of the shaft (40). The tube (44, 144) includes a tapered portion (60, 160) and a rotation prevention portion (62, 162). The sleeve (46, 146) has a frustoconical portion (72, 172) and a keyed portion (74, 174) that are respectively received in the tapered portion (60, 160) and the rotation prevention portion (62, 162) of the tube (44, 144). The golf club (20) further includes a mechanical fastener (48, 148) for removably securing the shaft (40) to the club head (22).

Abstract: A golf ball comprising a core comprising an inner core center and an outer core layer disposed over the inner core center. The inner core center has a deflection of greater than 0.210 inch under a load of 220 pounds and the core has a deflection ranging from 0.120 inch to 0.080 inch under a load of 220 pounds. An inner mantle layer is disposed over the core, an outer mantle is disposed over the inner mantle layer, and a cover is disposed over the outer mantle.

Abstract: A golf club (20) having a club head (22) with an interchangeable shaft (40) is disclosed herein. The golf club (20) includes a tube (44, 144) mounted in the club head (22), and a sleeve (46, 146) mounted on a tip end (50) of the shaft (40). The tube (44, 144) includes a tapered portion (60, 160) and a rotation prevention portion (62, 162). The sleeve (46, 146) has a frustoconical portion (72, 172) and a keyed portion (74, 174) that are respectively received in the tapered portion (60, 160) and the rotation prevention portion (62, 162) of the tube (44, 144). The golf club (20) further includes a mechanical fastener (48, 148) for removably securing the shaft (40) to the club head (22).

Abstract: A golf ball having a very low compression and a high COR is disclosed herein. The core preferably comprises a single neodymium-catalyzed polybutadiene, and has a diameter ranging from 1.575 inch to 1.62 inch with a compression ranging from 20 to 45. The cover preferably has a thickness ranging from 0.038 inch to 0.045 inch, and a Shore D hardness ranging from 50 to 58. The golf ball preferably has a coefficient of restitution of at least 0.780, and a compression ranging from 35 to 50.

Abstract: A golf club (20) having a club head (22) with an interchangeable shaft (40) is disclosed herein. The golf club (20) includes a tube (44, 144) mounted in the club head (22), and a sleeve (46, 146) mounted on a tip end (50) of the shaft (40). The tube (44, 144) includes a tapered portion (60, 160) and a rotation prevention portion (62, 162). The sleeve (46, 146) has a frustoconical portion (72, 172) and a keyed portion (74, 174) that are respectively received in the tapered portion (60, 160) and the rotation prevention portion (62, 162) of the tube (44, 144). The golf club (20) further includes a mechanical fastener (48, 148) for removably securing the shaft (40) to the club head (22).