Scientific American Supplement, No. 484, April 11, 1885Various
Science
Scientific American Supplement, No. 484, April 11, 1885
Various
Science -- Periodicals
Draught of water / Forward 3 ft. ½ in.
\ Aft 3 ft. 6½ in.
Average boiler pressure 104.81 lb.
Average pressure in receivers / Starboard 16.27 "
\ Port 16.54 "
Mean air pressure in stokehold 1.4 in. water.
Vacuum in condenser, average 26.72 in.
Weather barometer 30.37 "
Revolutions per minute / Starboard 240.75
\ Port 251.95
lb.
Mean pressure in cylinders / Starboard / High 45.33
| \ Low 16.16
\ Port / High 43.16
\ Low 15.3
Indicated horse-power / Starboard / High 18.20
| \ Low 16.32
| Port / High 18.13
| \ Low 16.17
\ Collective Total 68.82
Speed by log 10.18 knots.
Force of wind One.
Sea Smooth.
Quantity of coal on board 1 ton.
Description Nixon's navigation.
Consumption per indicated horse-power per hour 4.17 lb.
Time under way 5 hrs. 30 min.
_Table G.--Report of Trial of Engines of H.M. 48 ft. Steam Pinnace No.
110._
When tried August 3, 1881.
Where tried Stokes Bay.
Draught / Forward 3 ft. 1 in.
\ Aft 3 ft. 3¼ in.
Average boiler pressure 55.52 lb.
Vacuum 25.12 in.
Weather barometer 30.35 "
Revolutions per minute / starboard 165.54
\ port 161.55
Indicated horse-power[2] / Starboard / High 5.05
| \ Low 5.53
| Port / High 3.75
| \ Low 4.02
\ Collective Total 18.35
Speed of vessel by log (approximate) 7.404
Wind / Force 4 to 5
\ Direction Bow and Quarter.
State of sea Rough.
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