Last night I did an altitude test and took the plane to 40,000ft. From there I wanted to see the behavior in a high speed dive. Leaving prop set for max RPM and throttling engine to max MP, I put the plane in a 50-70 degree dive. I rapidly reached 540KTAS (per tacview) and the prop never oversped, the MP never redlined, and it held ~540KTAS from 24,000ft to 7,000ft when I pulled out of the dive. Every other warbird I've flown would have killed the engine and lost the prop to try a full power and max rpm dive like that. Is there some feature of the engine that lets it safely be put into dives like that or is the overspeed mechanic not implemented yet?