#2406: SpeedSkirt

I was wondering, when looking at the record breaking Mallard steam engine, if it could have beaten its own 126 MPH record with a more aerodynamic skin made of, say, alumninium.

Whilst pondering this it became evident that even our so-called high-speed trains have an enormous amount of high-drag undercarriage on show.

bogeybox

Today’s invention is an additional underskirt for railway carriages which would greatly smooth the airflow underneath the carriage and around its wheels by wrapping them in a lightweight tub.

This tub would ride on its own set of wheels (yellow), and have a gap at one end into which carriages could fit. This would allow rapid attachment and detachment for maintenance or to deploy them on the trains most in need of a speed increase.