In 1843 he proposed his 25 hp steam engine. He called it Ariel.

“Ariel”

-The engine had two double-effect cylinders. It was working at high pressure and in the boiler there were 24 conical containers for water to collect maximum heat.

“Front and side view of the machine”

-We can see a front and side view of Henson's steam engine.

-As we can see in the illustration above, it drives two propellers. Let it be known, it did not fly, because if it did, there would have been constancy in that sense.