Hello, i've made several propeller aircraft with the new rotors, they're quite good in my opinion.
I've made a C-130 with them and a light civilian craft. The C-130 tops out at around 140m/s with 4 propellers with 2 motors on each engine, its nearly 60 tonnes. The light craft, which I have released and you can find here, is 4.5 tonnes and flies at about 130 m/s with 2 engines and 2 motors per engine. Here's photos of the aforementioned light craft and C-130 flying:
I might release the C-130, but currently it has an issue of leaning right when using the elevators and I cannot find the cause.