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THE Marine REVIEW. by Charles C. West, sq., Member. To ee paper on 'Fire ee PLATE 5,--DESIGN FOR A THREE PUMP BOAT, PISTON PUMPS. 'pfessure, with 27 inches of vacuum "all the way down. The good | et aancbip done by the contractors, Messrs. Alex, Miller -& Bro. , was shown by the fact that -from-- the time steam was first gen- erated until the boats were turned over to the city, not a flange or bolt leaked, and all parts of the machinery worked perfectly, showing careful cal- culation of Messrs.: Millard & Mac- lane. The city now owns two of the best fire fighters in the world. The following figures show the perform- ance of the pumps on the trial trip, each boat, the "Thomas Willett? and "Jesse Duane,' performed. so near alike the following figures will do for both: TEST OF FIRE oes MADE MAY 26, WATER lees "9,000 GG. PB. M. Dicain = puecsutel G6. est cee 200 Ibs. DPACIO e . e cate ee 27 inches Wiessuge ab pump ....66s a oie" 160 Ibs. Number of cae: ROP OR Ani ah annus 3 Diameter of nozzles. .... cee Oe ee: 3 inches MES ek ENE Ree cece tees 1,800 WATER. DISCHARGED AT 9,625 G. (Be oM: DiCAM) (DOCH cee oy eke ees 200 Ibs. Vacs eee. be Adee ec 27 inches: Pressure at Pout ee 175 lbs. Numbér? "6f | nozzles...... Bert ee a Diameter. of* nozzles. ee eens 3 inches We eds ee ec dias ss ens 1,800 When the pump works in series 30) Ibs. pressure is maintained discharging 4,500 G. P, M. : ~The President: In view of the great easily - importance | of the fire boat service- in the'city of New York, Chief Crok- er of the fire department has kindly asked Capt. John Kenlon, acting dep- uty chief of batallion, of the main departinent, and superintendent of the marine fire service, to be present here this afternoon; and I am sure we will all, be very much obliged if he will express his views on the con- citton Of the fire boats, and give us his ideas of what he thinks they ought to be. 'Remarks of Mr, Kenlon. Mr. Kenlon: I am at a loss to know how to address_ this meeting. I presume, by the title of this paper, it is the Society of Naval Architects and Marine Engineers. I received a copy of this paper through the mail -this morning, and I have not yet had time to tread it; but when. Chief Croker called me up on the phone and told me I was expected here at two o'clock, I asked him what the Subject was, and he told: me -it--was fire boats. So, of course, I am always _ ready to say something on that sub- ject. In recent years the tendency of naval architects, in designing fire boats, has been: to go from the recip- rocating pump to the centrifugal pump, and after a trial trip they all come up here and have a bottle of wine, and make out that the thing is all right. Of course, we take hold Oi iis end, and we see afterwards -where the defects are. "Chicago boat, We have had tests on fire boats, of course, and there is one thing I saw happen in a and also in the New York- boats, and that -is 'the extta- ordinary loss of pressure between the pump and the nozzle. You will see, in New York there was 60 pounds loss ef pressure between the pump and the nozzle, and I believe in the test in Chicago the paper showed about 57 pounds. Now, that should not be. There is a serious defect there, because it does not occur in the reciprocating pump. I made 4 test on the fire boat New Yorker, and the only-loss was 12 pounds under 4 heavier pressure, and with a distance of 80 ft. with an elevation of 16 ft. from the pump to the nozzle. Now, let's speak of something that you gef- tlemen ought to work out. I do not know how to work it out. There is another point I wish to emphasize here, and that is they could get a great big discharge, 11,000 to 12,000 gallons of water, at 125 pounds pressure. Well, 125 pounds pressure is absolutely 'useless for firé duty. It is not even good for discharg- ing on board the boat. Never mind stretching the pipe into a high pres- sure main. We have a great big ship, 131 ft. long, and 27 or 28 ft. beam, and all that, and when we want to pump into a high pressure main We