Lockheed Martin Sikorsky’s concept will be based on X2 technology. Lockheed Martin rendering
“NATO, seeking to replace its aging fleet of helicopters, awarded three contracts on Friday to provide parallel concept studies for a new medium-lift, multirole rotorcraft. The alliance hopes to field that aircraft beginning in 2035…
“Dubbed “Concept Study #5, the goal is to “provide a broad range of potential concepts” to help participating nations choose what kind of vertical lift platform they want in the future. The NGRC program initiative began in 2022 and includes France, Germany, Greece, Italy, the Netherlands, the United Kingdom, and Canada. It was initially created with €26.7 million ($28.98 million) dedicated to defining the future of their helicopter fleets. The United States and Spain are currently acting as observers.”
Given that the Future Vertical Lift program is not producing an aircraft the Coast Guard can operate from cutters, this program may be of interest.
It is intended to replace AW101s, H-60s, Super Pumas, and NH90s.
The three contracts were awarded to Airbus Helicopters, Leonardo (partnered with Bell), and Lockheed Martin Sikorsky.
“At this stage in the process, NATO is agnostic when it comes to the choice of a traditional helicopter or non-traditional rotary aircraft. The alliance does, however, have many “required attributes” that the ultimate winning design must have, according to procurement documents.”
Among those attributes,
“Able to be deployed for medium-long periods (6-9 months) and fully operate from Frigate (FF)/Destroyer (DD) class of vessel, i.e. not larger than the footprint or dimension of either NH-90 (NFH), or AW-101, including the optional capability of folding main rotor/tail to be moved onto ship’s elevator/hangar for maritime operations.”
Chuck Hill's CG Blog 
Yeah …
“… Internal cabin dimensions of at least 2m x 1.6m x 5m facilitating transport of 1216 troops in Combat Equipment Marching Order (CEMO) (160kg) (160kg) or being usable for installation of mission equipment such as ASW. …”
“… not larger than the footprint or dimension of either NH-90 (NFH), or AW-101, including the optional capability of folding main rotor/tail to be moved onto ship’s elevator/hangar for maritime operations. …”
Combining those attributes in a single package is certainly going to be a tricky endeavor
I’ve always thought they could probably an ASW package to fit in a Sikorsky Raider, and they probably can fold it up to fit in typical shipboard hanger/elevator spaces, But it’s never gonna meet that troop capacity. And I doubt the Sikorsky Defiant will be able to fold up that thick tailboom.
Leonardo/Bell can figure out how to fold up something derived from the V-280 Valor, but again, getting it into the desired footprint remains the question.
I guess Airbus intends develop their X6 concept that they’ve been looking at for a couple years to target this type of requirement. But I don’t think they’ve gone beyond digital plans
As you stated, the USCG might be interested in this, I would think the US Navy will be too.Though, the Navy has already started the preliminary program aimed at replacing their shipboard rotary asserts
The Link was to a 2021 document. Things may have chanaged.
I think they missed a step by not specifying the dimensions of the frigate hangar. Length, width, and height.