Yeah, from what I’ve seen of released schematics online the one-piece wheel is the most common design, like the two below. Top one even has compressor and turbine on same disc. It’s fascinating stuff.
Looking back most of what we consider modern inventions has been invented decades, sometimes centuries ago, but couldn’t be made due to lack of technology, materials, or prohibitive cost. Those microturbines look like they just may become common given another 10-20 years and some advances in materials. I kinda hope they’ll eventually make hybrid motorcycles running these so you can pretend to pilot a little two-wheeled jet haha. And they’ll actually be ride-able as opposed to the Y2K.
Thanks for the info :thumbup