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Splice the mainbrace

Splice the mainbrace is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Splice the mainbrace rather than just read about it. In short: "Splice the mainbrace" is an order given aboard naval vessels to issue the crew with an alcoholic drink. Originally an order for one of the most difficult emergency repair jobs aboard a sailing ship, it became a euphemism for authorized celebratory drinking afterward, and then the name of an order to grant the crew an extra ration of rum or grog.

Splice the mainbrace — main illustration
Splice the mainbrace — illustration

Key takeaways

  • Splice the mainbrace belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Splice the mainbrace to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Splice the mainbrace from memory before moving on to harder problems.

Reference excerpt

"Splice the mainbrace" is an order given aboard naval vessels to issue the crew with an alcoholic drink. Originally an order for one of the most difficult emergency repair jobs aboard a sailing ship, it became a euphemism for authorized celebratory drinking afterward, and then the name of an order to grant the crew an extra ration of rum or grog.

History Braces are the lines that control the angle of the yards. On square-rigged ships, the mainbrace was the longest line in all of the running rigging. It was common to aim for the ship's rigging during naval battles. If the mainbrace was shot away, it was usually necessary to repair it during the engagement; the ship was unmanoeuvrable without it and would have to stay on the same tack. Even repairing it after the battle was a difficult job; the mainbrace ran through blocks, so it could not be repaired with a short splice or a knot. Splicing in a large run of hemp was strenuous work, and generally the ship's best able seamen were chosen to carry out the task under the supervision of the boatswain ("bosun"). On completion of the task, it was customary for the men to be rewarded with an extra ration of rum. The boatswain would take a sip from the ration of each of the men he had selected for the task. Eventually the order to "splice the mainbrace" came to mean that the crew would receive an extra ration of rum, and it was issued on special occasions: after victory in battle, the change of a monarch, a royal birth, a royal wedding or an inspection of the fleet. In cases where the whole fleet was to receive the signal, it would be run up with a lift of flags or signalled by semaphore.

A ration of rum a day was standard issue in the Royal Navy until 1970, when concerns over crew members operating machinery under the influence of alcohol led to the rum ration being abolished. However, in regard to those who could "splice the mainbrace", any man or officer over the age of 18 who desired to take it received an extra issue of one-eighth of a pint of rum. Lemonade was issued to those who did not wish for the rum. The rum was mixed with water to make grog for all ratings below Petty Officer. Only ratings marked "G" (for Grog) in the ship's books could draw rum, grog, or lemonade when the mainbrace was spliced and no payment in lieu was available. In the days when the daily ration was issued, those under 20 were marked "U.A." (for under age) in the ship's book; they were barred from drawing the daily rum ration. "T" stood for Temperance (for those of Temperance Movement); those choosing this option were compensated an extra threepence (3d) a day. The issue of rum to wardroom and gunroom officers was stopped in 1881 and ended for warrant officers in 1918; splicing the mainbrace was the only time that officers could be issued with rum. Other navies abolished the grog allowance far earlier (the United States Navy after the American Civil War), but the order persisted, allowing the crew to take another drink in place of rum or grog; in 1845 it is recorded as being substituted for the more rowdy "Crossing the Line" ceremony. The Royal New Zealand Navy was the last navy to issue junior and senior ratings a daily tot of rum, issuing its last daily rum ration on 1 March 1990. Today the Royal Canadian Navy is more generous with the allowances, allowing crew members to take 87.5 millilitres (3.08 imp fl oz; 2.96 US fl oz) of spirits compared with the 62.5 millilitres (2.20 imp fl oz; 2.11 US fl oz) allowed by the Royal Navy, although the Royal Navy does make allowance for paucity of supplies, permitting two 350 millilitres (12 imp fl oz; 12 US fl oz) cans of beer to be issued if commercial spirits are not available. The order "Splice the Mainbrace" was still popular with some of the U.S. Navy's submarine fleet during WWII. On USS Barb, a skipper on combat patrols in WWII, during the boat's 8th and 9th missions in 1944, did in fact announce on the 1MC, "Splice the mainbrace," after each successful attack and sinking of a Japanese ship. On Barb's 8th combat patrol, the skipper promised the sinking of 5 ships; Barb delivered. After each sinking the skipper had a special cake made and each sailor was granted a shot of rotgut whiskey. On the 9th patrol, the skipper was able to sneak 24 cases of beer aboard which were distributed after each of Barb's successful attacks. Permission to issue the order to splice the mainbrace is heavily restricted; the Royal Navy allows only the King, a member of the Royal Family, or the Admiralty Board to do so; the Royal Canadian Navy permits the King, the Governor General of Canada, or the Chief of the Defence Staff to issue it. When the Mediterranean fleet received the order from the Prince of Wales (the future Edward VIII) in 1932 it was the first time it had happened since 1918; it was accompanied by the order to "Mend and make clothes", another archaic signal which grants the crew a half-day holiday. Ships in most of the victorious fleets received the order at the end of the Second World War; one ship received the order while still under attack. King George VI issued the order in 1949 to the crew of HMS Amethyst after the Yangtse Incident. It was ordered on the day of Queen Elizabeth's coronation in 1953, on 29 July 1981 for the wedding of Prince Charles and Lady Diana Spencer and of Prince William's birth on 21 June 1982, when "Splice the Mainbrace" was celebrated in the Fleet just one week after the end of the Falklands War. Nowadays, when rum is no longer issued daily, the order is somewhat more freely given: the Queen issued it after her Silver Jubilee celebrations in 1977 and Golden Jubilee in 2002, after the Trafalgar 200 Fleet Review in 2005, after her Diamond Jubilee celebrations in 2012 and to celebrate the birth of Prince Louis. In Canada, the order was most recently given by Queen Elizabeth II on 29 June 2010 at the conclusion of the International Fleet Review for the occasion of the Royal Canadian Navy's 100th Anniversary. She signalled:

… excerpt ends here. Continue reading the full article.

Illustrations

Splice the mainbrace: Canadian sailors aboard HMCS Prince Robert line up to splice the mainbrace in celebration of V-J Day.
Canadian sailors aboard HMCS Prince Robert line up to splice the mainbrace in celebration of V-J Day.
Splice the mainbrace: A sailor on board HMS York measures out tots of rum for the ship's company
A sailor on board HMS York measures out tots of rum for the ship's company

Worked examples

Example 1 — a first encounter with Splice the mainbrace

Start with the simplest possible case. Write down what Splice the mainbrace claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Splice the mainbrace before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Splice the mainbrace ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Splice the mainbrace

In research
Splice the mainbrace appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Splice the mainbrace in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Splice the mainbrace is common in secondary-school and first-year university syllabi. It links to neighbouring topics Alcohol and the military, Drinking culture, Nautical terminology, so understanding it makes those chapters shorter.
In everyday life
Look for Splice the mainbrace outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Splice the mainbrace in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Splice the mainbrace means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Splice the mainbrace out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Splice the mainbrace in simple terms?

"Splice the mainbrace" is an order given aboard naval vessels to issue the crew with an alcoholic drink. Originally an order for one of the most difficult emergency repair jobs aboard a sailing ship, it became a euphemism for authorized celebratory drinking afterward, and then the name of an order…

Why does Splice the mainbrace matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Splice the mainbrace?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Splice the mainbrace.

Tags

  • Alcohol and the military
  • Drinking culture
  • Nautical terminology
  • Royal Navy traditions

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