Engines for Erebus and Terror Was Almost Certainly Taken Sometime in the Middle of February, Even Though Admiralty Approval Was Not Given Officially Until 1 March
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Page !77 of !111 Finding the Engines As we’ve now established, Joshua Field knew from experience that the size of engine required for Erebus and Terror was 30 NHP, which was sufficient to move the ships along at up to 5 miles per hour. However, it quickly became apparent that there was not enough time to design and build new auxiliary machinery to suit. Consequently, the firm suggested that second-hand railway engines be adapted instead, a proposal accepted by the Admiralty on 1 March 1845 “on condition that the machinery is made perfectly efficient.”136 How this was achieved has not been recorded, although as Pambour relates, such work could potentially be extensive: “… what is meant by repairs to the engines, is nothing less than their complete re-construction; that is to say, that when an engine requires any repair, unless it be for some trifling accident, it is taken to pieces and a new one is constructed, which receives that same name as the first, and in the construction of which are made to serve all such parts of the old engine as are still capable of being used with advantage. The consequence of this is, that a re-constructed or repaired engine is literally a new one. The repairs amount thus to considerable sums, but they include also the renewal of the engines.”137 The key questions would be how worn the second-hand locomotives were when they arrived at the Maudslay workshop; and what specific modifications were required before they could be installed on board Erebus and Terror? The type of locomotive selected was, of course, critical. Small, inside connected engines were a must, for they had to be as light as possible, fit within the eight-foot wide engine room space and be capable of directly connecting to the propeller shaft. In fact, there was only one type of engine with these attributes able to generate the required 30 NHP, and that was the Planet- and Samson-types, as previously noted. Finding a matching pair would pose a challenge, and not just because they were already obsolete by the time Erebus and Terror were being prepared. Most of the examples built had already been scrapped, or were so decrepit that they would be all but useless. Moreover, the specifications could vary considerably, even for those from the same manufacturer with the same cylinder size. Consequently, Field would have to settle for engines of similar dimensions and output, just so long as they achieved something close to the required 30 NHP. Unfortunately, only two surviving accounts actually name the source of the engines, and these don’t tell us much. The Illustrated London News reported in late May 1845 that Erebus’ “screw-propeller is worked by an engine of 25 horse power, which formerly ran upon the 136 NA(UK), Adm.95/88, Particulars of Steamships, pages 109-10, Terror, as reported by Woolwich, 15 May 1845. 137 Chevelier F.M.G. de Pambour, A Practical Treatise on Locomotive Engines upon Railways, John Weale, London, 1836, page 330. Whilst Pambour’s comments relate to the Liverpool & Manchester Railway’s practice during the 1830s, similar methods would have been widely employed. Page !78 of !111 Greenwich Railway.”138 Whilst Lieutenant John Irving of the Terror, wrote in a letter: “We tried our screws, and went four miles an hour. Our engine once ran somewhat faster on the Birmingham line.”139 The obvious conclusion is that Erebus’ engine came from the London & Greenwich Railway, and Terror’s from the London & Birmingham Railway, because the two companies were colloquially known as the Greenwich and Birmingham, respectively. Until recent years this has been the interpretation accepted by most researchers; but, are these two reports accurate? i) The London & Greenwich Railway The London & Greenwich Railway initially opened in February 1836 between Spa Road and Deptford as London’s first public railway; and was fully completed in December 1838, for a distance of 3.75 miles between London Bridge Station and Greenwich. When the company’s first locomotives were ordered, they were chiefly guided by the Liverpool & Manchester Railway’s practice and so four Planet-types were initially procured from William Marshall & Sons of Lea Brook, Tipton, Staffordshire. William Marshall, a partner in the banking firm of Barber & Marshall of nearby Walsall, provided the capital for the ironworks, leaving his sons John and William to manage the shop as well as a colliery at Darlaston. Locomotive construction was superintended by Joseph Mills, formerly of the Horsley Iron Works, Tipton. Marshall & Sons do not appear to have built railway engines before or after, but they did have a connection with two of the London & Greenwich’s directors, and this in part seems to have gained them their original contract for one locomotive on 10 May 1834. A second engine was ordered from Marshall & Sons in late July, along with two each from the established firms of Edward Bury & Company of Liverpool, and Robert Stephenson & Company of Newcastle. However, owing to pressure of work, neither Bury nor Stephenson ever fulfilled their contracts.140 The original Marshall engine arrived in London by canal in February 1835, and was put together at a temporary workshop at Corbetts Lane, Bermondsey (about 1.75 miles east of London Bridge), near the temporary Spa Road terminus. Dubbed Royal William, her trials proved so successful that another two Marshall engines were ordered on 10 June 1835.141 The remaining three Marshall engines were delivered in 1836 and christened Royal Adelaide, 138 The Illustrated London News, London, Volume VI, Number 160, Saturday 24 May 1845, page 328. 139 Benjamin Bell, F.R.C.S.E., editor, Lieut. John Irving, R.N. of H.M.S. “Terror”, in Sir John Franklin’s Last Expedition to the Arctic Regions: A Memorial Sketch with Letters, David Douglas, Edinburgh, 1881, pages 117-120: John Irving to his sister-in-law, Katie Irving, H.M.S. Terror, Greenhithe, Friday 16 May 1845. 140 R.H.G. Thomas, London’s First Railway —The London & Greenwich Railway, B.T. Batsford Limited, London, 1986, pages 170-3. 141 Note that a works list of railway engines built by Charles Tayleur & Company, Vulcan Works, Warrington, identifies the firms 25th engine as the London & Greenwich Railway’s Royal William (see <http://www.enuii.org/ vulcan_foundry/vulcan_loco_list_p1.gif>). This list was prepared at a much later date and is unreliable so far as the early locomotives are concerned. The attribution of the 25th engine was probably made because Francis Whishaw mistakenly listed Royal William as a Tayleur engine. A Tayleur drawing of Works No.25 is simply titled “Combined View of a Locomotive Engine.” (See <http://www.enuii.org/vulcan_foundry/photographs/Drawings/no %2025%20london%20&%20greenwich%20'royal%20william'.jpg>) Page !79 of !111 Dottin and Twells, the latter two honouring directors of the company. The total cost for the four was at least £2,950, paid in bills of exchange, or about £738 each.142 In 1837 the Marshall engines were assigned numbers 1 to 4, respectively; and by 1840 their names were removed.143 Further locomotives were also acquired by the railway from other manufacturers, but for the purpose of this study, we shall concentrate on the Marshall engines as these were their only true Planet-types. Normal wear and tear occasioned periodic overhauls, and in 1838 the company had its oldest six engines completely refurbished. The lighter work was done in the railway’s workshop at Deptford; engines requiring heavier repairs were sent out. No.2 Royal Adelaide needed considerable attention, and was sent to the Deptford shop of John Penn & Sons, a noted stationary and marine engine builder with workshops at Deptford and Greenwich. She needed new frames, cylinders and pistons, a new crank axle, wheels re-turned, and other replacement parts, for a total charge of £200.144 No.4 went to Messrs. Braithwaite, Milner & Company (formerly Braithwaite & Ericsson), 1 Bath Place, New (Euston) Road, London.145 In keeping with locomotive trends, No.3 was altered to a 2-2-2 wheel arrangement in 1840 by adding a pair of trailing wheels. Nos.1 and 2 were subsequently converted in 1842 or sometime after, but No.4 was never done.146 The mechanical specifications of the Marshall engines in 1840 were outlined in Francis Whishaw's The Railways of Great Britain and Ireland, and in a report to a Parliamentary committee on accidents, as shown in the table below:147 142 R.H.G. Thomas, London’s First Railway —The London & Greenwich Railway, B.T. Batsford Limited, London, 1986, pages 170-3. 143 R.H.G. Thomas, London’s First Railway —The London & Greenwich Railway, B.T. Batsford Limited, London, 1986, page 180. 144 R.H.G. Thomas, London’s First Railway —The London & Greenwich Railway, B.T. Batsford Limited, London, 1986, page 184. 145 This is somewhat surprising considering that Braithwaite, Milner & Company had been in the hands of a receiver since 1837. John Ericsson left the firm in 1839 for the United States, and the business was wound up in 1841. 146 R.H.G. Thomas, London’s First Railway —The London & Greenwich Railway, B.T. Batsford Limited, London, 1986, page 187. 147 Francis Whishaw, The Railways of Great Britain and Ireland, London, 1842 (2nd Edition), Appendix, page xxi, No.XIV; House of Commons (U.K.), Sessional Papers, Accounts & Papers: 1842, Volume 16: Report of the Officers of the Railway Department, 1842, page 224. Page !80 of !111 Table X: London & Greenwich Railway Locomotives by William Marshall & Company No.1 No.2 No.3 No.4 Original Name Royal Royal Dottin Twells William Adelaide Delivered 1835 1836 1836 1836 Wheel Arrangement, 1840-1 2-2-0 2-2-0 2-2-2 2-2-0 Driving Wheel Diameter (feet-inches), 1840 5-0 5-0 5-0 5-0 Driving Wheel Diameter (feet-inches), 1841 5-0 4-0 5-0 5-0 Carrying Wheel Diameter (feet-inches), 1840 3-9 3-9 3-9 4-0 Carrying Wheel Diameter (feet-inches), 1841 3-9 3-9 3-6 3-9 Cylinder Diameter (inches) 10 10 11 10 Length of Stroke (inches) 16 16 18 16 Nominal Horsepower @ 50 p.s.i.