Horstmann suspension, also known as Horstman, Vickers-Horstman and rarely Slow Motion, is a type of tracked suspension devised by British tank designer John Carden and worked into a production design
The Light Tank Mk Ia (A4E8 prototype) became the first tank in the world to use the Horstmann design. In this case the spring is outside the track area, leaving room for track return rollers to lie directly over the suspension in a particularly compact layout.
The Light Tank Mk III introduced a slightly modified version with only one bell crank per bogie, causing the spring to lie somewhat angled as a result. This system was used on the Universal Carrier.
The horizontal volute spring suspension used on late-model Sherman tanks is similar to the Horstmann design. The two wheels per bogie, two crank arms, springs between the cranks and single mounting point are all evident. This model also includes a shock absorber for further improvements in ride quality.
The FV4201 Chieftain was the primary main battle tank of the United Kingdom from the 1960s into the 1990s. Introduced in 1967, it was among the most heavily armed MBTs at the time, mounting a 120 mm R
Horstmann suspension
…post-war era was increasingly limited to British tanks as newer systems emerged in other countries. The last tank to use this basic mechanism was the Chieftain, designed in the late 1950s. Horstman Defence Systems remains a tank suspension specialist to this day and makes a range of systems based mostly on…
A Chieftain Mark 11 at the Bovington Tank Museum (2013)
Chieftain on a Thornycroft Antar tank transporter
Chieftain display at the Bovington tank museum, 2006
A Leyland L60 engine pack displayed at the Bovington tank museum. The complete unit could be removed by the crane of the FV434.