Skip to main content

Classification and Survey: Ship plans and survey reports

This page is approximately a 4 minute read

About the ship plans & survey reports

Reports of survey and plans/technical drawings informed the details of each vessel’s entry within Lloyd’s Register’s annually published Register of Ships. These surveys were conducted in accordance with approved rules and regulations for the construction and maintenance of vessels. Though records are generally internal communications between survey offices and the head office in London, or between committees and departments, records from owners, builders, tradespeople, and other third parties are commonplace. Decisions regarding classification, taken at committee level, were informed using these technical survey reports, drawings/plans and accompanying correspondence as they were received from surveyors.

Earliest records begin from the reconstitution of Lloyd’s Register of British and Foreign Shipping in 1834 to the computerisation of surveying records in the 1960s/70s. Following internal practice ship plan and survey report material generated from the 1960s/70s until circa 2000 exists in microform, e.g. microfilm and microfiche. From 2000 onwards materials are held on CD-ROM, as well as internal networks, drives, servers and management systems. Prior to 1852, surveying actively was almost exclusively limited to vessels built at, operating out of or passing through British and Irish ports. The subsequent period saw the rapid expansion of overseas survey offices, which is reflected in the archival record.

Stacked cardboard file boxes with colored labels showing numbers 62, 59, 70, 43, 46, 64, and 65, marked "Belfast" with reference numbers.
View of archive boxes found within the Port Box Series.

What you need to know

A search through the collection will no doubt yield some useful information, but researchers will get the most out of the Ship Plans and Survey Report collection (SPSRs) by preparing ahead of time. For example, the collection centres on the vessels surveyed and classed by LR. The more you know about each vessel, the easier it becomes to locate any relevant documentation.

The most obvious helpful information to know is the name of a vessel, especially if that vessel has had several names during its working life. Generally, the SPSR holdings list vessels under their later or final names. For example, the Hull trawler Arctic Outlaw had four names during her trawling years and is listed in the SPSRs under her final name of Stella Arcturus.  The more names you know before searching the collection, the easier it will be to narrow down results to the vessel you are looking for. Likewise, information about where the vessel was built, when, and the shipyard that completed the work are useful, as is any tonnage information. There may be many vessels listed with the same name, so any additional information will be useful in differentiating between them. From 1963 onwards, with the introduction of the LR number (and the IMO number from 1980), vessels had a unique identifier that remained the same throughout their service.

To confirm the details of or provide additional information on vessels, please see the online guide to the Register of Ships.

How its arranged

SPSRs are housed in ascending sequentially numbered boxes. Overall arrangement of the Classification and Survey Series reflects four major clerical changes. These three major sub-series are as follows:

  • Port Box Series (LR/5/3/1): This earliest series dating from 1834 is arranged alphabetically by the Lloyd’s Register survey office that created the record, and within this, in ascending order by that office’s unique survey report number, e.g. ‘Abn200’ being the two hundredth survey report completed at the Aberdeen office. Printed lists of port abbreviations used are available for consultation;
  • Wreck Report Series (LR/5/3/2): This second series dates from 1892 to the late 1940s. It consists predominantly of Wreck Boxes (LR/5/3/2/1) containing bundles of records grouped together in relation to the same vessel. Records were continually added, as they were received, to each vessel’s bundle throughout their service careers. Also included are Ship Annals (LR/5/3/2/2), a small sub-series (one box per vessel) arranged by date of build of each vessel consisting of 70 unique boxes. The sub-series represents all that is remaining of an earlier SPSRC arrangement from 1892 onwards.  Lastly, Wreck Report Books (LR/5/3/2/3), another sub-series dating between 1892 and 1941 and comprising 83 bound volumes of archival material that were discovered to have been physically separated from the wider Wreck Series. For this reason, the records have been conserved and bound separately in alphabetical order of a vessel’s original name. Records relating to the same vessel are retained together.
  • Report Number Series (LR/5/3/3): This series dated from the late 1940s until the 1960s/70s. Its arrangement is similar to the ‘W’ Series; records for the same vessel are retained together in numbered envelopes. In turn, these numbered envelopes are arranged in ascending order, with each envelope housing records related to the same vessel.
  • First and Famous Ship Plans and Survey Report (LR/5/3/4): This last series consists of 54 boxes compiled as a pilot digitisation project. It features vessels from the wider SPSR that are either engineering/technological ‘firsts’, e.g. Mauretania, Dunedin etc. or famous for another reason, e.g. Cutty Sark, Empress of Ireland. Records for the same vessel have been retained together and originate from across all three of the major series described above.

Document types

  • Technical Documents
  • Ship Survey Reports
  • Survey reports record all technical information and assessments taken by surveyors when examining the seagoing quality of ships around the world. The contents of a standard survey report are explained below using the example of a survey report for the Hull trawler Viola (1906).