Dynamometer, affordable

[Harmon Sommer]

>I'd kinda like to see that mega leaf blower if anyone tries it.

Swamp buggies have been using this technology for years (instead of blowing
the leaf they become the leaf).

My understanding of R-4360 engines as used in B-36s, had a geared
propeller, where the gearbox was planetary gear train. The planetary gears
were restrained by a yoke, which reacted against a hydraulic piston.
Pressure information from this piston was displayed to the flight engineer.
This information related directly to engine torque i.e. an in flight
dynamometer (or six of them; one for each engine).