RE: Research on the Quadrise Marine market - How Many RT-Flex Engines are there?10 Apr 2026 15:14
WinGD now has full ownership of the former Wartsila the 2-stroke slow speed marine diesel business. Previously it was a partnership between Wartsila and WinGD.
The WinGD X series is a modernised version of the Wartsila Flex series. Ergo, the data collected on Flex engines is highly relevant to X engines. A good number of the new ships that MSC have bought in recent years use WinGD X engines (not exclusively). Perhaps one small complication is that many are duel fuel models (DF), so there might be some additional verification required.
I get the sense that with increasing prevalence of alternative fuels, the industry is becoming more flexible about testing new fuels (insurance, flag states, operators, classification societies, OEMs, etc). Until now, it was very easy for everyone to be bottlenecked by OEM testing capacity.
Instead, once a baseline of data has been established on a given fuel, there seems to be an appetite to find a no-objection process that is not as time-consuming, resource intensive, and costly as a full LONO (TBD...). Hopefully we can benefit from these changes, as they will provide faster routes to market for MSAR with MAN (and various engine models that may be distinct enough to require separate testing). This is a topic that Peter is working on with OEMs, as I understand it.
I don't know what the specific solution will be, but I imagine it will involve digital twins/simulations, static testbeds, lab testing, etc.
If we can establish a process that is rigorous enough that all parties are confident in safety and efficacy, it would be a massive improvement. That is especially important for bioMSAR which supports diverse feedstocks (even blended together). It would never be practical to do a full LONO for bioMSAR variant, let alone blends.