The plane’s extreme unreliability has resulted in full mission capable rates (FMC) of only 36.4% , 14.9%, and 19.2% for the F-35A, F-35B, and F-35C, respectively. For F-35Bs and F-35Cs, only the newest planes have full mission availability rates above 10%.

Unsurprisingly, the services and Lockheed Martin don’t really like to talk about FMC; instead, they like to focus on mission-capable (MC) rates of roughly 50%. While much lower than the 90 percent promised by Lockheed Martin and its service partners, it certainly sounds much better than the dismal FMC rates. But MC is a very deceptive measure, and the services know it, as “mission capable” aircraft need only be capable of flying non-combat missions, such as training, ferrying, or public relations, etc.

Those are… impressively bad numbers.