Combined diesel and diesel (CODAD) is a propulsion system for ships using two diesel engines to power a single propeller shaft.
System
A gearbox and clutches enable either of the engines or both of them together to drive the shaft. Two advantages over simply using a single, larger diesel engine of the same total power output are that (1) diesel engines have somewhat better specific fuel consumption at 75% to 85% max output than they do at only 50% output, and (2) there is a weight and size advantage to using two higher-speed engines compared to a single lower-speed engine, even with the slightly larger gearbox system.
CODAD vessels
Passenger and Car Ferry Ships
- M/F Povl Anker
Containerships
- MV ACX Crystal
Coast Guard Offshore General-Purpose Cutters
- Iwami-class patrol vessel
- Shiretoko-class patrol vessel
- Tanjung Datu-class patrol vessel
Coast Guard Offshore Security Patrol Cutters
- Mizuho-class patrol vessel
- Ojika-class patrol vessel
Coast Guard Multi-mission Cutters
- Kunigami-class patrol vessel
- Teresa Magbanua-class patrol vessel
Coast Guard Interceptor Cutters
- Aso-class patrol vessel
- Hateruma-class patrol vessel
- Hida-class patrol vessel
- Anping-class cutter
- Tsurugi-class patrol vessel
Coast Guard Security Cutters
- Heritage-class cutter
- Mizuho (PLH-41)
- Shikishima-class patrol vessel
Patrol Corvettes / Navy OPVs
- Guaicamacuto-class patrol boat
- Kedah-class offshore patrol vessel
Corvettes
- Bung Karno-class corvette
- Bung Tomo-class corvette
- Diponegoro-class corvette
- Doha-class corvette
- Jacinto-class corvette
- Kasturi-class corvette
- Laksamana-class corvette
- Parchim-class corvette
- Steregushchiy-class corvette
- Tuo Chiang-class corvette
- Type 056 corvette
Frigates
- Formidable-class frigate
- Frégates de taille intermédiaire
- Jose Rizal-class frigate
- La Fayette-class frigate
- Lekiu-class frigate
- Maharaja Lela-class frigate
- Miguel Malvar-class frigate
- RN Type-31 Inspiration-class
- Tamandaré-class frigate
- Type 054A frigate
LSDs (landing ships, dock)
- Whidbey Island-class dock landing ship
LPDs (landing platforms, dock)
- Endurance-class landing platform dock
- Galicia-class landing platform dock
- Makassar-class landing platform dock
- Tarlac-class landing platform dock
Amphibious Flat-topped Ships
- Dokdo-class amphibious assault ship
- Ōsumi-class dock landing ship
FACs (fast attack-craft)
- Clurit-class fast attack craft
- Cyclone-class coastal patrol ship
- Sampari-class fast attack craft
Cruise Ships
- MV Piano Land (formerly MV Oriana)
References
