Quite a unique moment, unexpectedly this formation appeared, old and new in formation near the Thomas-Jefferson memorial. Strikingly, the green colour of the Sea King is slight different compared of the colour of its successor, the Patriot. The VH-3D Sea King (BuNo 159359) is together with 159357 (which was seen earlier this day) is one of the last operational Sea Kings of HMX-1.

This is VH-92A System Demonstration Test Article 2, the fourth Patriot built. It is former Sikorsky test registration N313SX and was first noted in mid-2019. 169180 is one of 23 VH-92As that the US Navy budget procured, of which 21 will be operational aircraft and two will remain test aircraft. The 21 aircraft are operated by Marine Helicopter Squadron (HMX) OBNE, based at Quantico (VA). The squadron runs a detachment at Joint Base Anacostia-Bolling (MD). The VH-92As replace the venerable VH-3D Sea King and VH-60N of HMX-1.

This FY2019 Patriot carries a plate with a six on the "clip", I don't know what that means. Normally such clips are used for plates with two, three or four star marks. This 169187 is former Sikorsky test registration N335SX.

The red plate on the nose section reveals that this Patriot is carrying a four star general. The helicopter took-off from Joint Base Anacostia-Bolling (DC), just on the other side of Ronald Reagan International Airport, both adjacent to the Potomac river, just south of the capital. This fiscal year 2021 VH-92A is former Sikorsky N344MW.