UR M47 New

UR M47 Bridge control of propulsion machinery for attended machinery spaces - 1983

UR M48 Deleted

Permissible limits of stresses due to torsional vibrations for intermediate, thrust and propeller shafts - Deleted Feb 2005

UR M49 Deleted

Availability of machinery - Deleted Dec 2003

UR M4 Deleted


UR M50 Deleted

Programme for type testing of non–mass produced i.c. engines - Deleted Feb 2015

UR M51 Factory Acceptance Test and Shipboard Trials of I.C. Engines - Rev.4 Feb 2015

UR M52 New

UR M52 Length of aft stern bush bearing - 1986

UR M53 Calculation of crankshafts for i.c. engines - Rev.2 Jan 2011

Note: UR M53 Rev 3 will come into force on 1 July 2018 and can be found in "Previous Revisions" 

UR M54 Deleted


UR M55 Deleted

Planned maintenance scheme (PMS) for machinery - Deleted May 2001

UR M56 Marine gears – load capacity of involute parallel axis spur and helical gears - Rev.3 Oct 2015

UR M57 New

Use of ammonia as a refrigerant - 1993

UR M58 Deleted

Charge air coolers - Deleted Feb 2015

UR M59 New

UR M59 Control & safety systems for dual fuel diesel engines - 1996

UR M5 Deleted

Mass production of internal combustion engines, procedure for inspection - Deleted Feb 2015

UR M60 New

UR M60 Control and safety of gas turbines for marine propulsion use - 1997

UR M61 New

UR M61 Starting arrangements of internal combustion engines - Dec 2003

UR M62 Deleted

Rooms for emergency fire pumps in cargo ships - Deleted June 2014

UR M63 New

UR M63 Alarms and safeguards for emergency diesel engines - Jan 2005

UR M64 Rev1 CLN

UR M64 Design of integrated cargo and ballast systems on tankers - Rev.1 July 2004

Forgotten Password

Please enter your email address here and you'll receive an email with instructions on how to reset your password.