The following text may have been generated by Optical Character Recognition, with varying degrees of accuracy. Reader beware!

8 MARINE REVIEW. Test of the Steamer L. C. Waldo. SHOWING A FUEL ECONOMY 20 PER CENT. GREATER THAN ON THE ORDINARY LAKE STEAMER. "In the table of performances of modern lake steamers in the Blue" Book of American Shipping the tests of fourteen steamers are included. On only four of this number does the coal consumption per horse power ~ per hour fall below two pounds. On the other ten it ranges from 2.02 pounds to'2.64 pounds, the average fuel consumption being 2.22) pounds of coal per horse power per hour. It is almost needless to say ° that none of these ten steamers use artificial draft. Two of the-- four steamers using less than two pounds of coal per horse power per hour have the Howden system of draft. The most economical show- ing of any of these large modern steel freighters is that of the Hz: rvey H. Brown, which shows an average, including all tests, of 1.93 pounds, « and eliminating a test made under bad conditions reduces this to 1.92 SS LC. Waldo Test 194 BO Spring or 5 ea a a aero Fans i { - ~~ ( \ 803 ae N oY \ ¢ > \ j -" Saas 4 \ ae wee y '\ ip? : v x on 4 \ ff \ LON B- -FRS eS Bs Ser ewer SET TASH =k 5 Ee ae eae : InP 624.) _ pone ts Soa a Be ewe 40 on ans { 1 31 Seb? sat Si! J sé | 1 Reis Feic ! \ -- ----< } A Be ; aire / Neue : = Sg 4 NS 4N isos : eet Ne ee ee eee a ae wee seaa--J LHP 663.7 sor ente Bivcssny t Shes o 4 1 1129 Boer eee ye ae 12.3! 1 Sie oe ' \ LOS ' ' ' Le TAS 5 ' Zs ~s fi t et ew ie | - ~ ' 5 Caan a "~ . A gs / ~~. ae a Sr wee et = OT" IH.P 178.6 Avr pumb Card SON a ie ie a i 43.2! f Naa 3p LAL h: t See A wage t ' L~--~--~----- 7 Strokes /45 LHP 11.9 pounds. Until the steamer L. C. Waldo was built, the Howden was the only system of the draft on the lakes, but the Waldo is equipped with the Ellis & Eaves system. The test of the Waldo published herewith will be of considerable interest to vessel owners and en- gineers, as it shows a consumption of 1.88 pounds coal per horse power per hour, including all tests, but excluding one test, a short one made with the dampers closed, as an experiment, the result is 1.79 pounds, or a gain of some 20 per cent. as compared with the averge of the ten modern lake steamers above referred to. The test on the H. H. Brown, as well as the one on the L. C. Waldo, was made by George C. Shepard, a mechanical engineer who was not employed by the builders except to make the tests. The test on the Waldo was made with run-of-mine. coal'and under ordinary con- ditions. Inventors of the Ellis & Eaves system will no doubt call atten- tion to the fact that the Waldo's boilers are equipped with plain tubes and not with Serve's ribbed tubes, which they claim is the comple- ment of their draft system, and that by the?r use an additional 10 or , 15 per cent. could be obtained. Allowing 10 per cent. for the Serve's tubes, the Waldo's consumption would be 1.61 pounds, and allowing for auxiliaries, it is not unreasonable to claim a consumption of only 14 pounds for this system. In view of the fact that the Globe Iron "GENERAL RESULTS. Number or TEst. 1 "2 3 4 5 1|Duration, hrs., min........... SAE. obits Soo 5:57 2|Displacement, net CONS .............eeeeeee 4,258 6,513 3}Area, immersed midship section....... 459.2 685.2 AU DIX: 82\---- 1h & Bex Anatt cc. .ccc.cc-.--+00see 807 5|Wetted skin surface, sq. ft atte 21,450 25,580 GAMBLE Of MtLANCO |<... -cise-c--sc0c--se-ne-see imine rl 2 re 7|Cut off of main engine...... . bis oat 3i4. 344.334 934.3, 9% 8|Mean boiler pressure, Ibs.................. 166 165.5 9} '+. I. P. receiver pressure, lbs....... 55 56.3 10} 'S LL. P. receiver pressure, Ibs..... 8.03 8.2 11) 3S -vacuum. inches... ......2....0.......<.% 25.5 25.4 12} " revolutions, main engine......... 80.77 83.48 ey 3 fan engines.. 265 270 14|_. "strokes of air pimp.. 11 11% .15/Referred M. H. P. on .L. P 24.48 * 29.39 -16)[ndicated horse power................. 1,547.7 1,748 4 17 ts " as air one 9.48 _18|Heating surface per I.H.P........ 4.02 3.57 19/I.H.P. per square foot grat 12.9 14.57 20|\Indicated thrust, net tons.. 18.05 19.8 '21|Speed, miles per hour........... ate 14.21 13.3 D9 Sli MPC COM Genes-ccccssnecitccseceteececcrers 11.5 19.8 23 D202 ---- Hu Peerere feepratetecetereeeesstaeen: 488 469 24/Temperature of injection................. 55.6 50 25 Ne CSN OUWElI Ess ese aoveseoree 110 116 26 eS € feed WateLr........ccccceee 176 183.5 27 os Ot PULMACC rs crcseceee cokes 235 285 28 ss SS fants oe nara RSS 405 29|Drattiat TUPMACC ic s..sc..ccecccs+-esseenes---00 nal 223 BO creer ae LA igeet eset eee cee ee cerste wee arent tee |) ce deeerse 1.55 31/Total coal DULNEG................0.seseseeeeseee 15161 20087 32 COalepemhOUnensscs eee ssteeteersacuccees 2715 3376 > 33}|Combustible per hour......... ea edete Bees 2370 2947 SA COALaD Cleat pene as cee eerrercsecescrtccees 11,76) 1.92 35] * '* square foot grate................ 22.6 -- 28.13 36 tee ee LONRCALS OND GIs Mill Oss eereccseull Wureateesses .063 OTIWATED PCI NOUl-se.+ cre scccssesteteesre 24,976 29,782 ioe Le epemhounrinces wees 16.13 17.03 OO [pee Se8P EAT ICOM ttt cistteertess ire 9.2 8.82 40 aes ecombustiblews.: cscs 10.53 10.10 41 "from and at 212° perlb.c'mb'stbl. 11.45 10.91 Works Company has secured the exclusive rights for the usé of 'the Ellis & Eaves draft, Serve's tubes and Purves' furnaces on the lakes, ~ this matter of fuel economy will no doubt receive considerable' attention. Following is Mr. Shepard's report of the test on the Waldo: SS LC Waldo test NOt \ L Eat 50 eww ------- 9 - etal << -- ' \ -~ Ue \ 64 25 eae 66.47 \ of SX 4 ' wv a 4 \ " -Ny é \ rig we 4 \ of We = é \ a me "x ae oN RS 'N a rt oe InP' 43899 atte eae ae S00 "Cn ~ o-o7 Leai2 Tsas 2 ieede o 25.S} - iS Lie Sule eat a Sy eae, ISS oe - ce a Pe en 7 ON fen is 7 es Z s : we > x Cieiite ee ae DS eee en ee ee ee we we ee ee es LHe 479 cr f8 ome ieee Pa - - ~ oo ' 18,3 ~ 12 ie 10 | ' aS cee ! ' BAe ! \ AH Te ' A ae MS ) \ ees =~ i 4 X ete Oe Sr ' Cae go : C ood Se x - Se wesle 2 ee eee eee ee = = oo LHe S718. The L. C. Waldo was built and engined by F. W. Wheeler & Co. of West Bay City, Mich., for L. C. Waldo and others during the , winter of 1895-96 and went into commission in May, 1896. She was, _ designed. for the coarse freght trade and is 380 feet between perpem .