[29] 



WORK OF THE STEAMER FISH HAWK. 



31 



Table of distances made under steam by the United States Fish Commission steamer Fish 

 Hawk, for the year 1882 — Continued. 



8TNOP8I8 OF THE STEAM LOG FOR THE YEAR ENDING DECEMBER 31, 1882. 



Stroke of piston, in feet 2J 



Number of condensing cylinders 2 



Diameter of condensing cylinders, in inches 22 



Mean point of steam cut-off from commencement of stroke of piston, in 



inches 6. 75 



Mean number of holes of throttle- valve open 6.4 



Mean vacuum in condenser, in inches of mercury 24. 8 



Mean steam pressure in boilers "while engines were in operation 22. 5 



Mean temperature of engine room 93 



Mean temperature on deck 67 



Mean temperature of injection water 62 



Mean temperature of discharge water 96 



Mean temperature of feed water 82 



Total time fires were lighted, in hours and minutes 4, 543. 20 



Total time fires were lighted for hatching, in hours and minutes 1, 487. 40 



Total time engines were in operation, in hours and minutes 785.44 



Total time engines were in operation for dredging, in hours and minutes. . 123 



Total number of revolutions of starboard engine 3, 640, 7.30 



Total number of revolutions of port engine 3, 505, 090 



Mean number of revolutions per minute en route 88.61 



Mean piston speed, in feet per minute 409. 5 



Total number of knots run 5, 493. 75 



Mean number of knots per hour 6. 8 



Mean number of knots per hour enroute 8. 6 



Total weight of coal consumed for engineer's department 471^^§ 



Total weight of coal consumed while engines were in operation 238'/^4^ 



Total weight of coal consumed for galley , 24^^' 



Total weight of coal refuse 97^f|^ 



Mean number of pounds of coal consumed per hour while engines were in 



operation 667 



Total number of gallons of oil consumed 371 



Total namber of pounds of tallow consumed 112 



Total number of pounds of wiping stuff 221 



Mean draft forward, in feet and inches 7.9 



Mean drafc aft, in feet and inches 7.6 



