Now where's the fun in all that? 100MPH in a circle, and tethered no less. A monkey could drive that thing. Now then, unhook that bad boy and lets see what that old geezer can do with it.
Any deranged idiot can get a blown V8 from an auto supermarket and make something go fast, in a straight line. That is why in the UK we don't buy large American cars, we need our cars to be able to steer around corners and sharp bends.
This chappie has most probably spent most of his modelling life developing that small engine and flash boiler, a tiny tweek here, a little twang there, with an eventual culmination where he took the world steam powered record.
In the model engineering world, this is equivalent to all your land and water speed records and all your dragster records as well. The only difference is, he has most probably only spent a few hundred bucks to get to that high position rather than bottomless pockets that everything I mentioned above would require.
This is model engine designing and making beyond your wildest dreams.
So please don't belittle it just because it has to be tethered to control all the power that is being produced.
I am not completely ignorant of model boat issues, for the last fifty years, I was an avid model boat and steam engine designer and maker, but nothing that I have done could compare to what he has achieved. That is true dedication.