The Turbomotive was an experimental steam locomotive built in 1935 by the London, Midland, and Scottish Railway (LMS) under the direction of Chief Mechanical Engineer William Stanier. Based on the successful Princess Royal Class design, the Turbomotive stood out for its use of a steam turbine instead of traditional reciprocating pistons. 
This turbine arrangement allowed for smoother, quieter running, and fewer mechanical parts, which theoretically meant reduced maintenance and greater reliability at sustained high speeds. It was especially efficient on long-distance, high-speed runs where constant power was required. 
However, the lack of a reliable reverse gear and reduced flexibility at lower speeds or for shunting limited its practical application. Despite promising performance, the complexities of turbine technology in rail use led to the project being discontinued. After World War II, in 1949, the Turbomotive was rebuilt as a conventional piston-driven locomotive, marking the end of Britain’s brief experiment with steam turbine propulsion in railways.
Specific to R30398:
    Replacement 40 superheater boiler with regulator housed in separate dome
    4000 Gallon standard pattern Stanier Tender with roller bearings
    Reverse Turbine modifications added
    Model represents condition post 1936 modifications
    LMS Lake livery
    Separately fitted nameplate, number plate and company ownership plate
Princess Royal ‘Turbomotive’ Features:
    High detail OO gauge model based on extensive research and original works drawings
    Working headlamps with the option to fit standard lamp brackets
    Tender lamp operation controlled by touch
    21 pin DCC socket in the locomotive, with pre-fitted sugarcube speaker
    Fully compatible with Hornby HM7000 control system with a meticulously crafted ‘Turbomotive’ sound available for download
    High detail cab and fully decorated backhead with decorated instrument dials
    Fully decorated bespoke cab crew supplied
    Fully adjustable oil cooler radiator flap
    Powerful 5-pole skew wound motor
    Flywheel with cardan shaft arrangement for smooth running
    Pogo pin wheel pickup arrangement for easy pickup servicing
    Heavy diecast chassis, pony truck and trailing truck
    Very heavy diecast body
    Oilite main drive bearings
    Opening cab roof vent
    Sprung metal buffers
    Rear NEM coupling pocket, detailed front bogie
    Optional fit rear flanged wheelset. Only recommended for larger layouts with sweeping curves or for display purposes
    Wheel pickups on the main locomotive and tender wheelsets
    Separately fitted simulated coal load