In 1933, Blackpool Corporation Transport (BCT) General Manager Walter Luff was looking for replacements for the traditional "toastrack" (open) trams running on the Promenade. Luff recognized that the toastrack cars were dangerous for the conductor and nearing the end of their useful mechanical lives. Collecting fares, the conductor moved along the running boards on the outside of the car while trying to avoid colliding with trackside obstacles, such as traction poles, because there was no center aisle in this type of tram.
 
Walter Luff approved a design for an open topped car with a center entrance and central walkway. The design allows the conductor to collect the fares safely and the passengers to board and alight safely. Known as "the boats" with their ship-like streamlined appearance, they have become one of the most iconic designs among Blackpool trams. All cars are virtually identical, except for the prototype, which has shorter body panels. English Electric constructed a prototype car, and BCT responded with an order for eleven more cars.
 
Labor shortages and lack of passengers greatly reduced use of the boats during World War II. After the war, the boats returned to service on the seaside promenade route once more.
 
All twelve cars remained in service until after the North Station route closed in 1963, when there was a general reduction in the number of trams available for service. At that time, six cars were all withdrawn and stored before being scrapped in 1968 as they were surplus to requirements. At that time the remaining boats were renumbered 600 - 607.
 
In the 1970s, interested parties in the United States acquired BTS 601 and 603. BTS loaned BTS 606 to the 1988 Glasgow Garden Festival where a special tramway was built through the exhibition site. Painted in blue and yellow, (different from the usual green and cream livery), BTS 606 became the first and, to date, only Blackpool tram to operate in Scotland. The car returned to Blackpool following the end of the festival in September 1988.
 
In 2000, BTS transferred BTS 606 to the Gerald Brookins Museum of Electric Railways in exchange for BCT 147, a traditional double deck car, which has now been restored back to its 1924 condition and operates Blackpool.
 
At the end of the 2004 season, BTS withdrew the boats as part of a fleet reduction exercise. Following a number of complaints and a huge outcry by the public, four cars were returned to service during 2005 and have remained in service ever since, proving their popularity.
 
The Museum purchased BTS 606 in 2009 from the Lake Shore Electric Railway Museum, successor to the Brookins Museum.