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HMS Rattler (1843)

HMS Rattler (1843) 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 HMS Rattler (1843) rather than just read about it. In short: HMS Rattler was a 9-gun steam screw sloop of the Royal Navy, and one of the first British warships to be completed with screw propulsion. She was originally ordered as a paddle wheel 4-gun steam vessel (Steam Vessel Second Class – SV2) from Sheerness Dockyard on 12 March 1841.

HMS Rattler (1843) — main illustration
HMS Rattler (1843) — illustration

Key takeaways

  • HMS Rattler (1843) belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect HMS Rattler (1843) to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of HMS Rattler (1843) from memory before moving on to harder problems.

Reference excerpt

HMS Rattler was a 9-gun steam screw sloop of the Royal Navy, and one of the first British warships to be completed with screw propulsion. She was originally ordered as a paddle wheel 4-gun steam vessel (Steam Vessel Second Class – SV2) from Sheerness Dockyard on 12 March 1841. She was reordered on 24 February 1842 as a propeller type 9-gun (867-ton BM type) sloop from HM Royal Dockyard, Sheerness, as a new vessel. William Symonds had redesigned the ship as a screw propeller driven vessel. She was the fifth ship so named since the name was first introduced into the Royal Navy for a 16-gun sloop launched by Wilson of Sandgate on 22 March 1783 and sold on 6 September 1792.

Construction The keel of Rattler was laid in April 1842 and launched on 13 April 1843 at Sheerness Dockyard. The length of her gundeck was 176 ft 6 in (53.80 m) with a keel length of 157 ft 9.5 in (48.09 m) with an overall length of 195 ft 0 in (59.44 m). Her maximum breadth was 32 ft 8 in (9.96 m) with 32 ft 6 in (9.91 m) reported for tonnage. Her Depth of hold was 18 ft 7.5 in (5.68 m). She had a mean draught of 11 ft 5.5 in (3.49 m). Her builder's measure for tonnage was 888 80⁄94 (bm) and she displaced 1,112 tons. After launching, she was towed to East India Dock at Maudslay's yard to have her machinery installed. She was equipped with two fire tube rectangular boilers. Her engine was a Maudslay, Son & Field four-cylinder vertical single-expansion steam engine with double cylinders of 40.25 in (1,022.35 mm) with a working stroke of 48 in (1,219.20 mm), rated at 200 nhp. Once her machinery was installed she was moved to Woolwich Dockyard where she was coppered. Her armament consisted of either a single 8-inch (60 cwt) muzzle loading smooth bore (MLSB) 8-foot 10-inch shell gun or a single 68-pounder (65 cwt) MLSB 10-foot solid shot gun on a pivot mount and eight Blomefeld 32-pounder (25cwt) MLSB solid shot guns (bored out 18-pounders) on broadside trucks.

Trials Her propeller trials commenced on 30 October 1843. During her full power steam trials her engine generated 428 indicated horsepower (319 kW) for a speed of 10.074 knots (18.657 km/h). Rattler was completed for sea on 30 January 1845 at a first cost of machinery - £9,400 and fitting of £17,413.

Service history Her first commission was on 12 December 1844 at Woolwich under Commander Henry Smith, RN (promoted to Captain on 27 June 1846). She was assigned to Portsmouth. On 3 April 1845 the Admiralty held a demonstration on the power of the screw propeller over the paddle wheel. Rattler was pitted against her near sister Alecto. Both vessels had the same basic hull form, though Rattler was just over 12 feet longer. Both had 200 NHP engines installed. The sea was perfectly calm. Rattler had a three mast rig whereas Alecto only had two masts. With the engines of both vessels working Rattler developed 300 indicated horsepower (220 kW) whereas Alecto only reached 141 indicated horsepower (105 kW). The result had Rattler towing Alecto astern at 2.8 knots (5.2 km/h). The results were only to demonstrate to skeptics the soundness of the Admiralty's decision to use the propeller over the paddle wheel. This demonstration would be repeated two more times by 1849. It is this which is commemorated to this day in Portsmouth Historic Dockyard. A large number of propellers were also tested on Rattler during this period to find the most effective screw design. On 17 May 1845 Rattler and steamers HMS Monkey and HMS Blazer towed HMS Erebus and Terror toward Orkney but abandoned the tow 60 nautical miles (110 km; 69 mi) north-west of Stromness. Rattler returned to Woolwich on 10 June. In June 1845 Rattler served with the 1845 Experimental Squadron. On 29 August 1846, while serving with the Squadron of Evolution, she ran aground at Lisbon, Portugal; she was refloated. She departed the Squadron in November 1846 for Gibraltar, from which she towed HMS Superb (1842). On 17 November 1846 her new commander was Commander Richard Moorman, RN and transferred to the South American Station. On 13 September 1847 she was paid off at Woolwich.

West Coast of Africa

Commander Arthur Cumming commanded Rattler from 12 February 1849 to 15 April 1851. During this time she was stationed off the west coast of Africa. On 30 October 1849 she captured the Brazilian slave brigantine Alepide. She paid off at Woolwich on 15 April 1851.

East Indies Station

On 28 August 1851 she was commissioned for service on the East Indies Station under Commander Arthur Mellersh, RN at Woolwich. While on station the Second Burmese war (10 January 1852 to 30 June 1853) erupted. She became the Flagship of Rear-Admiral Charles John Austen, RN. In March 1853, Rattler struck a sunken rock at Amoy, China and was severely damaged. She was beached at Tae-tan (today's Dadan Island, Lieyu Township, Kinmen County, Fujian, Republic of China (Taiwan)) for repairs. She was in action against junks near Namguan on 11 May 1853. On 5 April 1855 she was under Commander William Abdy Gellows, RN for service in China and the East Indies. On 4 August 1855, Rattler, HMS Eaglet, and the USS Powhatan fought a naval battle near Tai O village, Lantau, with Chinese pirates. She was ordered to return to Home Waters in early 1856.

Fate Rattler returned to Home Waters, paying off at Woolwich on 17 May 1856. She was broken at Woolwich under contract with Mr Fulcher from 22 July to 26 November 1856.

Notes

References Colledge, J. J.; Warlow, Ben (2006) [1969]. Ships of the Royal Navy: The Complete Record of All Fighting Ships of the Royal Navy from the 15th Century to the Present (3rd Rev ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8. OCLC 67375475. Lyon, David & Winfield, Rif (2004). The Sail and Steam Navy List: All the Ships of the Royal Navy 1815–1889. Chatham Publishing. ISBN 978-1-86176-032-6. OCLC 52620555. Rif Winfield; British Warships in the Age of Sail (1817 - 1863): published by Seaforth Publishing, England (c) 2014; eISBN 9781473837430

External links Media related to HMS Rattler (ship, 1843) at Wikimedia Commons Detailed career including Times excerpts Description of the contest with Alecto

Illustrations

HMS Rattler (1843) illustration
HMS Rattler (1843): Rattler saluting Eyo Honesty's State Canoe
Rattler saluting Eyo Honesty's State Canoe
HMS Rattler (1843): Rattler at the storming of Rangoon, 14 April 1852
Rattler at the storming of Rangoon, 14 April 1852

Worked examples

Example 1 — a first encounter with HMS Rattler (1843)

Start with the simplest possible case. Write down what HMS Rattler (1843) 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 HMS Rattler (1843) 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 HMS Rattler (1843) 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 HMS Rattler (1843)

In research
HMS Rattler (1843) 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 HMS Rattler (1843) 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
HMS Rattler (1843) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1843 ships, Experimental ships, Franklin's lost expedition, so understanding it makes those chapters shorter.
In everyday life
Look for HMS Rattler (1843) 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 HMS Rattler (1843) in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what HMS Rattler (1843) 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 HMS Rattler (1843) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is HMS Rattler (1843) in simple terms?

HMS Rattler was a 9-gun steam screw sloop of the Royal Navy, and one of the first British warships to be completed with screw propulsion. She was originally ordered as a paddle wheel 4-gun steam vessel (Steam Vessel Second Class – SV2) from Sheerness Dockyard on 12 March 1841.

Why does HMS Rattler (1843) 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 HMS Rattler (1843)?

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 HMS Rattler (1843).

Tags

  • 1843 ships
  • Experimental ships
  • Franklin's lost expedition
  • Maritime incidents in August 1846
  • Maritime incidents in March 1853
  • Ships built in Sheerness
  • Sloops of the Royal Navy
  • Steamships of the United Kingdom
  • Victorian-era sloops of the United Kingdom

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