In the early part of the 20th Century, the monorail concept was quite popular. The Wuppertal Suspension Railway had been running successfully in Germany since 1901. George Bennie, a Glasgow born son of an engineer developed the idea for the Bennie Railplane in 1921, with a working model – which still exists, and is on display in the Kelvingrove Museum in Glasgow.
By 1930 a full size, 130 metre long test track had been built at Milngavie, north of Glasgow. The concept had the railplane running as an express passenger service above conventional railways, which carried local and freight traffic below.
Despite considerable interest, no financial backing was secured, and, despite Bennie’s best efforts the idea floundered. Sadly he went bankrupt in 1937, and the test track was eventually demolished and the railplane scrapped in 1956. There is a Pathe Newsreel about it on Youtube
There’s also some archive material at the Museum of Scotland website
Thanks for reading. Check out my other posts on travel, heritage railways and more.
Please click like and subscribe for more random railways content. Follow me on Twitter and Youtube. If you would like to help me with a small donation towards producing more content please buy me a coffee:
There’s also a wide range of my photos available on T shirts, mugs and lots more at Redbubble