A sail bogey or sail trolley is a wind-driven vehicle that runs along railway tracks.
Examples
Spurn railway
The Spurn railway, built along Spurn Head on the Yorkshire coast of England was built in the First World War and ran until the early 1950s and included sail bogies as part of its rolling stock.
Teesmouth lifeboat
In the early days of the Teesmouth lifeboat, its crew were sometimes able, subject to wind conditions, to travel out to the lifeboat station at South Gare on a sail bogey.
Others
Other locations to have used sail bogies include: Cliffe, Kent Gosport Herne Bay Pier, Kent Camber Railway near Port Stanley, The Falkland Islands the Dagebüll–Oland–Langeneß island railway, connecting the town of Dagebüll with the Halligen Oland and Langeneß, Germany
Replica
More recently, in 2005, a replica of a 19th-century sail bogey was built and demonstrated on the Ffestiniog Railway in North Wales.