The B-type was designed by Frank Searle, who was chief engineer of the LGOC. It had a wooden frame, steel wheels, a worm drive and chain gearbox. Its top speed was 16 miles per hour (26 km/h), which was above the legal speed limit at that time of 12 miles per hour (19 km/h). However the vehicle could reach 30–35 miles per hour (48–56 km/h) under the right conditions.
