Recently Hornby have released their 6 wheeled Sentinel in the guise of L81 which represents the first of three Sentinel's acquired second hand to replace the venerable LT Pannier tanks.
Unfortunately with the prototypes their wheelbase was insufficient to operate track circuits on the main line. To address this a tender was attached fitted with a trip cock.
The tenders were manufactured from 'Q' stock bogies. The tender and Sentinel carried co