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'TAe Marine Review OFFICIAL STANDARDIZATION TRIALS, CON yO. OF RUN PE 2i3 | 4) 5 617 e ie) ea) el oe le | 17 STAR | #1 |233.80.23/. 19233.021295.09)299.57|29753)55). 67|548.001552.371544 731548 90464 14147, 65467591389 401305 GClSE7 C Burrs °2_272.761268.8527/.18 [340.99|342.70)342.951537231537571539.291548. 111543, 561468 80473 49147/ 761390 6138747 CTE 5 PORT | *3 126779126 6.39126 6.821337021339.93340 13 P39.2/136481542.51545.43542.64534 24533, 36531061442 2h440 Szl4a ag x BHAFTS| °4 _[233./5|229.16)233.26295 04)29767|298. 011552 111547651552. 54545.051548.36|463, 531467 53146689387 361387 371386 57 § ore sigs _[25/-87|248.9425/. 07317. 03 3/9.97|319.651545 05542 421546.69545.831545871482 6486 Sheba 241402 34400 2A 4007 igpamar|rl 2 [a [22 [21 [20 [1s [20 [22 [ar | 20 | 27 | 23 | ay | 2 Tar 1 a th ao i) PUMP Al 22 | 22 | 22 | 20 | 20 | 20} 19 | 20] 27 | 20 | 201 20] 201 201 2 | 221 2 Spa cre |F| 150_{ 148 | 154 | 155 156 | 156] 194 | 208] 197 | 198 | 188 | 183 | 188 | 786 | 186 | 1741 180 tls ote 2 - a us a = ee as Ms bs be 135 | 140 | 139 | 145 | 137 | 133 Bie ; De 28 2h] 27s |e ey Ma) FEED |A| oO | O |} oO} 3 | 3 | 3 | 25 | 30 | 28 | 28 | 38 | 261 29 | 241 19 | 19 | 24 wiSANITARY| 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 241 24 | 24 | 241 24 | 24 1 24 | 24 | 20 Meizu pume| 4 | 4 | 4 | 15 | 15 | | | ve] 29{2 | | 9 | 1a | 27 23 | 22 5 DYN. ENG. | 400 | 400} 400 | 400 | 400 | 400| 400 | 400 | 409| 400 | 400| 400 | 400 | 400 |400 | 400 | 400 TRS |e Blow. */| 84 | 84 | 84 | 84 | 60 | 60 | 400 | 350] 300| 300] 3/0 | 220[ 220] 220 | 220 | 220| 240 : al n*2| 58 | 58 | 58 | 75 | 75 | 75 | 360 | 350| 260] 30 | 3/0 | 260] 225| 280 | 250| 2201 240 wlan 3) 78 | 76 | 76 | 76 | 76 | 76 | 325 | 325| 325] 300| 310 | 260! 220] 220| 220] 20 | 2z0 B\Sf*stowces."| 73.3 | 72.6 | 72.6 | 78.3 | 70.3 | 70.3 [362 6 |34/.6| 295 [303.3 3/0 1246.6|22/,6| 2401230 l216.61233.3 MAIN ~|F 23! | 239 | 237 | 232 | 237 | 209 | 236 | 235 | 232 | 223| 237 | 237| 232 | 242 | 237 | 237 STEAM |A| 240 | 240 | 245 | 240 | 235} 235| 2/0 | 240 | 236 | 236 | 2361 245 | 2421 238 | 245 | 2401 237 MAIN H.P|F. 9 | 7 | 24 | 24 | 24 | 17 | 17 | 170} 167 | 169] 100| 105| 105| 6 | 57 | 57 TURB.G IA] 5 | 5 | 75| 4 | 4 | 4 | 1751) 173| 176| 1701) 169[ 100] 100| 100] 55 | 56 | 57 EP OIF 3°] 3S AS [8 8 20) 20 eet er ere se) 15 (so Wo os TURB.ABIA| 3 | 3 | 3 | 5 | 5 | § |245|203)205| 216 | 2/3] 16.0| 60] 60| 95 | 95] 95 | |HPC- G 80 | 80 | 144 | [44 | 144 . SILPC. AB] 36 | 35 | 6! | 63 |. 63 204 | 202} 202 | 123 | 123 |: 123 SlAUX GIF 23! | 239 | 237 | 232 | 232| 209 | 236 | 235| 232] 223] 237 | 237| 232 | 242| 237] 237 "| sTEAM|Al 245 | 245 | 243 | 245 | 240{ 220| 245| 240| 245| 245| 242| 245| 2401 245 | 245| 2451 235 AUX |F Bl Te Ses (ie |S sees Bale ee he el sel ect eae EXH. GIA 8 18 [716 981 5 16 | 7 1 eel Olio, |G tats | oe |p | on \F SL 8 tS 2S 26 jo le Slee ee se aoe ous le oie ein ae ec AL 7 | 7,8 (eee el 7 ee eg tee gee &ST TolGlF: RES pee Be ee or Oe eG eA Se Pe] GLANDASA| 15 | 15 | 14} 3 | 4 | 4] ie | eo 1 el is) Be] eh] we] Bl te] 6 | a 7 CS Gs 6 Sos [eer pee ae a le | eel | VACUUM | F 29.2} 29.2 | 29.2|29.2 |29.2|29./ | 29.) | 297 | 29.1 | 29.1 | 207 | 297 | 297 | 29.7 | 29.8 | 29.8 le (He) *|A| 29 | 29/ | 29.3|29.4|29.5 |295 1289 | 23.7] 28.8| 287 | 28.8] 29.4] 29.4 | 29.6 | 29.6 | 29.6 | 29.6 | F|_[BAROmETRe)29. 78 | 29.78|29. 74]29.78|29.78|29. 7829.79] 29.79|29.79| 29.79| 22 79|29.79|29.80 | 29.8029. 80) 29.80|29.80} BOILERA | 235 | 230 | 235 | 240 | 240 | 240| 2/5 | 240| 245| 240 | 245| 2451 248| 240 | 248 | 210 | 170 » B 1240 | 235 | 240 | 240 | 235 | 240 | 2/2 | 245| 250| 245| 250| 250| 253 | 246 | 253 | 220| 150 " C | 240 | 236 | 240 | 244 | 235 | 240| 2/5 | 245| 245| 245| 245| 245| 245| 240 | 250 | 240| 220 vil» _D | 240 | 236 | 240 | 242 | 235 | 240 | 2/2 | 246 | 245| 245| 250| 247| 245 | 242 | 250| 240] 185 wlS|» E | 235 | 235 |-240| 240 | 227 | 235| 2/5 | 244| 240! 240| 240| 24/ | 240| 235| 246 | 245 | 240 3|a » F | 240 | 240 | 245| 245 | 232 | 240 | 2/7 | 248} 246| 245| 246| 246| 245 | 24) | 250| 248 | 244 &/Kl » 6 | 235 | 235 | 240| 240'| 230 | 235| 2/6 | 247| 240| 238 | 24) | 240| 242 | 236 | 248 | 246 | 240 wll» | 240 | 240 | 245 | 245 | 233 | 240 | 219 | 250| 245| 241 | 246| 245| 248 | 24/ | 252 | 249| 245 si3|_- J [240 | 245 | 245; 245 | 235 | 240] 270 | 245 | 245] 240| 245| 245| 245| 240| 250| 245 | 240 Rj\°| » K | 240 | 2401 245| 240 | 235 | 235| 210 | 240] 240| 245 | 240| 235| 240 | 235| 245 | 245 | 235 ; + L|235 | 240! 235 | 240| 230} 235) 205] 235| 235| 235|.235 | 235| 235 | 235 | 245 | 240! 235 ~ MI 240 | 245 | 245| 245| 240 | 240] 2/0 | 240| 240! 240| 240 | 240} 240| 240 | 250| 245| 240 _| PVERAGE |238.3| 238 |24/.2[242./| 234|238,3| 2/3 |243.7| 243|241.6|2436| 243 | 243.8] 239.1] 249 |239.4/220.3| RISTFIREROOM .O | .5| .0| .0| .o | .0 135 | 35] 30{ 25 | 25] 225] 20 | 15 | 10] 5 | 10 S20» 0 PO N06 (0 eo | 0 1225 2S | 28] RS prey 1Zel hor A251 0. 8 0 3 50. [0 FeO Ode 0° [5.0 1174 1201 201 201201 2:0 | 0 | 20 | 10 | LO ion Z AVERAGE 0! «| .o| .o} .o| .0 | 25 12.66] 2.08] 2.0 | 2.08] 4.83) 133] 125] 10 | 8 | 10 | INJ- IF 3) psp Se ot Sh) Si A Shel Shot Sh Shay ol lashe | She SPI Sah eal _|ECTION JA] 30 | 30 | 30 | 30 | 30 | 30 | 30 | 3/ | 37 | 31 | 31 | 31 | 3 | 3 _| 30 | 30 | 30 || DIs- |F 35 | 36 | 37 | 40 | 35 | 53 | 49 | 54 | 55 | 53 | 46 | 47 | 45 | 40 | 42 | 40 RICHARGE|A| 40 | 40 | 39 | 42 | a | a | ze | 72 | 73 | 77 | 76 | 58 | 60 | 58 | 50 | 5 | 50 AIR PUMP) F' 6! | 60 | 59 | 52 | 56 | 57 | G4} 70 | 66 | 66 | 66 | 64 | 60 | 58 | 56 | G) PISCH'GEIA| 72 | 72 | 70 | 65 | 64 | 64 | 90 | 79 | 80 | 84 | 92 | 72 | 69 | 74 | 70 | 66 | 68 wIFEED TO|F 59 | 59 | 59 | 56 | 56 | 57 | 64 | 64 | 64 | 58 | 57 | 60 | GO | 57 | 54 | 56 QHEATER |A| 82 | 84 | 82 | 78 | 7 | 72 | 86 |.80 | +84 | 8 | 92 | 70 | 76 | 74 | 76 | 70| 72 GIFEED FR |F 198 | 209] 180] 2/8 | 186| 192} 19/ | 188| (74| 210 | 209| 224 | 202| 220] 202| ZI5 EATER |Al94 | 94 | 94 | 94 | 94 | 94 | 176| 120] 190| 194] 200| 2 | 200| 154 | 204| 212| 156 NG.RM|Al 72 | 72 | 67 | 67 | 64 | 64 | 64 | 68 | 68 | 69 | 67 | 7 | 70 | 70 | 72 | 74 | 74 AFIFIREROOM 58 | 56 | 56 | 5¢ | 54 | 56 | 52| 52 | 52] 50| 52 [50 | 52 | 53 | 56 | 54 | 54 ae 53 | 58 | 57 | 55 | 56 | 59| 60 | 57'| 57 | 56 | 56 | 54 | 58 | 59 | 62 | 59] 58 a 52 | 52 | 52 | 52 | 52 | 52| 50 | 50 | 48 | 48} 48 | 48 | 48 | 48 | 48 | 56 | 58 AVERAGE | 56 1 553| 55 | 54.3] 54 | 55.6| 54 | 53 |52.3|51.3 | 52 _|50.6|52.6 |53.3| 55) | 563/566 IPYROM'R| 460 | 500| SIO | 525] 525| 520| 735| 700| 720, 735| 740 |640| 670 | 680 | 600 | 340 "2 PYRO'R| 420 | 445 | 450| 460| 460| 450| 730| 690| 730| 690| 690 | 560| cao | 590| 530 | 480 VERAGE | 440 |472.5| 480 1492.4 492.94 485| 732.5| 695] 725| 7/25] 75 | 600/635 1635] 565) 410 NOTES FOR OFFICIAL TRIALS. ALL GAUGE PRESSURES EXCEPT VACUUM CORRECTED ! BAROMETER READINGS FROM ANEROID BAROMETER ON DECK = GAUGE PRESSURES - AB = ABSOLUTE PRESSURES EIGMT oF PYROMETER ABOVE' GRATE APPROXIMATE 38 FT. HAFTS ARE NUMBERED IN REGULAR ORDER FROM STARB. OUTBD (#/) TO PORT ure) The results of the preliminary ac- ceptance trials are completely sum- marized on Plate 2. Particular atten- tion is called to the four-hour full- speed trial. The writer considers himself safe in making the statement that such results would be impossi- ble with reciprocating engines. Although the machinery developed about 50 per cent more tnan the de- signed power on this trial, it was not pushed to its limit in any part except 23 OFFICIAL FOUR HOUR TRIAL. COURSE OFF ATLANTIC COAST. MA 1.1908. SPEED DRAFT, MEAN, "1676" TRIM 8" BY STERN. DISPLACEMENT. MODERA iN. W. N S POCAHONTAS COAL, HAND PICKED, POUNDS OF COAL PER 12628,-*%2 FIRE ROOM 12264 ~ *3 FIRE ROOM 13440 ~ TOTAL 38 KNOTS PER TON OF COAL 1,55. NOS OF COAL PER OF GRATE SLIP CF PROPELLERS IN PER CENT Of THIER OWN SPEED, BASED ON PITCH -- *I STARB'D 25.7/ ~*2 STARB'D 25.99 ~"3 PORT 26./8~"4 PORT 24.34 -- MEAN SLIP. 25,56 iP x IN KNOTS, P=PITCH OF PROPELLER IN FEET. R = REVOLUTIONS PER MINUTE, 6 9 1/0 2_KNOTS. 3673 + ~*y STAR. at PORT 3 FTS\"4 N AIR PS MAIN CIRC? MAIN FEED NITA OIL ENG. / " 20, ch 24 26 ze PER MINUTE AUXILIARIES FD. BLOWERS. TOTAL H.P, FOR ALL AUXILIARIES 45 2 240|234'242 2. 43 2 245} 24/ | 241 |245|246\247 |245 |247 |235 45 248 33)}23 37124012. 234/230\2 35\239| 2401244 |242/237! 234) 2321243) 2. 30} 30 3/ | 3/ | 30} 30 30 | 3! 26 t) 29.2) 29.2131. 20 Vi 20V\20 20 20 V|20 75| 75| 75| 75| 75 | 7515.0} 5.0 250} 249| 250) 240 |240| 241 |246| 250 2 | 243) 248 \242|252 250 14 i4 19 | 19 15) 2 235|235|227 45245 30 32 40 243 236|242 30 | 30| 30 4 rA:) 0 TO eo 250 +5170|7.0 250 2 $.0} 6.0 | 5.5! 5016.6 250 | 249 |238|247 250|2521240 iT 18 | 18 2 125: 251 25) 25) 20) 2 TATA Tone: 7 PSL Fle o{/0 l4 | 18 ee lee | 0}; 0; 0 14 | Je | 15 | 5 ! 153 13 GAUGE PRESSURES 1 F.R'M| 3.0 " 24 3.0 0 56] 36 34 8! | 72 84 | 84 78 100\ 99 73 | 73| 80| 80 28 8 38 7 76 s 7 79 | 79 | 80 2 97 96 | 97 80| 80} 80} 79 396 96 v}2/1 220|22 200} 204 |204 22 50} 51 | 5! 52 56 60 36 80 96 ae 190 | 190 | 189 | 198|z08 50} 50| 50) 5 | 50 8 22 76| 75 22) 223; 220 Sy} 541 54| 54 0 200 $I 5/ | 52 | St OUTSIDE AIR 33.. TEMPERATURE 5 the feed system. The feed pumps and their connecting piping reached their capacity limit at tne power de- veloped on this trial, so that the rate of combustion in the boilers was simply regulated to evaporate all the