The rib shown here is a Parker 650 with Mercury Diesel QSD 2.0 170 HP and is 1 of 2 supplied in 2013 to an overseas client. Not often do we get a chance to get and show photos of our ribs at work. The client tells me that the ribs are working 7 days a week and are in a very good condition. The extra protection on the tubes is a DIY job and serves the purpose. The self-righting is from Henshaw as we only install the best. Hopefully it will never be needed but it was a requirement to have.