"The reman engines were the perfect solution"
After passing under the bridge, the river bus increases speed perceptibly. The brown water of the Thames is whipped up into a white foam at both ends of the catamaran. The Monsoon and her five sister ships measure 38 m in length, offer space for 220 passengers, and have been in service on the Thames since 2008. They are each powered by twin mtu
engines – originally brand new, now replaced by what are called 'reman' units. These are mtu
engines that have been fully remanufactured for a second service life after 12,000 hours of duty. "mtu
's reman principle is the perfect solution for us," says Sean Collins. "mtu
supplies us with a reman engine, we remove the old one and install the as-new one. The old one goes back to mtu
for reconditioning," he continues. If they had opted for the conventional complete overhaul, the clippers would have stood idle for a good couple of weeks, because they all entered service at the same time. Another advantage of reman engines is that they are cheaper than brand new ones. "Our technicians swapped over the old engines with the new reman replacements inside a day," relates Sean Collins enthusiastically. So the operators were able to keep the catamaran downtimes to the absolute minimum. To date, the Thames Clippers company has bought over 20 reman engines, and some of the river craft are already running on their second reman unit.