Doughty Valley 2019 a USA view

[RWHB1]

https://youtu.be/qH2YC-QNca0

Russ

[Trevor 2]

Pity about all the safety barriers getting in the way and yellow jackets bossing folk around along with all the notices about hot surfaces and moving parts.............

[weidner]

Notable that those air brakes cannot be screwed down to increase the load , and all the engines are running on the governors ( as American engines do the whole time )

[Trevor 2]

They are purely for putting a load on the engine. Invented by A D Baker for testing his production engines before dispatch. Known as Baker fans.

Most shows in US have several Proney brakes for determining HP etc.
Some electric but mostly friction brakes.

[weidner]

Yes indeed , Fodens used something similar to test run their wagons , known in the works as The Flip Flap .
My point was that they cannot be screwed down to overload .

[tenor]

My point was that they cannot be screwed down to overload .

Provided the engine is governed. Power consumption on a fan actually goes up as the cube of the rpm.

A very good point though, and they can still make an engine bark - which is really the only thing that Joe Public might understand.

Martin