In the published article, Figure 1 on p.4 have two definitions mistakenly inverted. The correct figure should display as shown below.
Configuration a) is a tractor and configuration b) is a pusher.
![](https://static.cambridge.org/binary/version/id/urn:cambridge.org:id:binary:20230522140556562-0761:S0001924023000155:S0001924023000155_fig1.png?pub-status=live)
Figure 1.
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Published online by Cambridge University Press: 20 February 2023
In the published article, Figure 1 on p.4 have two definitions mistakenly inverted. The correct figure should display as shown below.
Configuration a) is a tractor and configuration b) is a pusher.
Figure 1.
Figure 1.