BATTLESHIPS. EXPERIENCE GAINED ON THE JUPITER. 195 



TRIAL DATA. 



48 hours 24 hours 



Date of trial Feb. 14-14 Feb. i8-'i4 



Speed, in knots 14-99 ^O-O^ 



Draught, mean 27 ft. 9 ins. 27 ft. 7^2 ins. 



Displacement, in tons 19,452 I9,350 



Pressures (gauge) : — 



Main steam, boilers, pounds 193-8 193-9 



Engine-room, pounds 185.8 186.44 



Turbine, pounds .' 168.4 180.56 



First stage, pounds 56 8.5 



Forced lubrication, pounds 30 30 



Oil to governor relay, pounds 80 75 



Steam seals, pounds 5 5 



Auxiliary exhaust (absolute) 23.19 23.68 



Air pressure to boilers, in inches of water .712 



Vacuum, inches 28.2 28.5 



Revolutions or double strokes per minute: — 



Starboard motor 1 16.72 77-077 



Port motor 1 16.72 77-077 



Main turbine 2,130 1,410 



Wet air pumps 3,600 3,600 



Dry air pumps 112 113 



Circulating pumps 193 196 



Feed pumps 22 17 



Blowers 329 



Temperature, in degrees Fahrenheit: — 



Main injection 55 55 



Overboard discharge 78 7^ 



Hottest bearing (middle) 133 115 



Oil from cooler 99 85 



Feed water i9i-9 215.9 



Field amperes, main generator 251.5 184 



Volts, main generator 101.4 69.44 



Volts, main generator 2,580.6 1,524 



Amperes, starboard motor 725 395 



Port motor 755 413 



Main generator 1,480 808 



Kw., starboard motor 2,692.7 712.5 



Port motor 2,833.1 751.3 



Total kw 5>525-8 1,463-8 



S. H. P., starboard shaft (torsion meter) 3,603.258 1,053.959 



Port shaft (torsion meter) 3,548.677 961.08 



Total (torsion meter) 7,i5i-9 2,015.04 



