Carl Zeiss recently set up its largest  gantry measuring machine in Oberndorf, with a measuring range of 5 x 11 x 3.5 meters. It is used to measure ship engines for oil tankers and container ships. Measurement requires  a CMM to accommodate the entire engine and  produce highly accurate results even when long stylus systems are used.

The flexible modular system of the MMZ G Gantry machine ranges of up to 5 metres in X, 11 metres in Y and 3.5 metres in Z . On the largest model, the linear measuring uncertainty MPEE is no more than 7+L/250 µm.
www.zeiss.de