208 



REPORT — 1860. 



Appendix IV. — Table showing the Ratios between the indicated Horse- 

 indicated Horse-power; also, between the grate and heating sur- 



name of vessel. 



Place and nature of performance. 



Speed. 





Vessels of the United States Navy. 



Niagara (screw) 



n 



» 



n 



it 



Massachusetts (screw) 



it 



ii 



ii 



Vessels op the Eoyal Navy. 



Rattler (screw) 



ii 



ii 



n 



Diadem (screw) 



ii * 



ii 



ii 



ii 



ii • • 



Doris (screw) 



„ (witli common screw) 



„ (common scrpw increased to 20) ... 

 „ (Ditto, with two foremost corners 



cut off ) 



„ (Ditto, with four corners cut off) ... 



„ (Griffiths' screw) 



„ (Ditto ditto) 



„ (Ditto ditto) 



Marlborough (screw) 



ii 



„ (with half -boiler power) . . . 



ii 



Mersey (screw) 



Renown (screw) 



Performance in smooth water , 



Ordinary actual performance at sea under 



Bteam alone 



Ditto ditto, steam and square sad combined 

 Ditto ditto, steam and fore-and-aft sails... 

 Mean of the above sea performance 



Performance in smooth water 



Ordinary performance at sea under steam 



alone 



Ditto ditto, steam and sail combined 



Mean of the above sea performances 



On trial, Thames, Sept. 5, 1844 

 Ditto ditto Jan. 1845 .. 



Ditto ditto Sept, 5, 1851 



Ditto ditto Sept. 5, 1851 



Ditto, Stokes Bay, Oct. 20, 1857 



Ditto ditto Oct. 21, „ .. 



Ditto ditto Nov. 7, „ ... 



Ditto ditto Dec. 1, „ .., 



Ditto ditto Jan. 1, 1858 .., 



Ditto ditto Aprd 1G, 1858 



Ditto, Stokes Bay, May 27, 1859 . 

 Ditto ditto Aprd 21, ,, , 

 Ditto ditto May 5, „ , 



Ditto ditto 



Ditto ditto 



Ditto ditto 



Ditto ditto 



Ditto ditto 



May 9, 

 May 23, 

 May 25, 

 May 27, 

 June 3, 



Ditto, Stokes Bay, June 1, 1859 

 Ditto ditto June 2, „ 

 Ditto ditto June 2, „ 

 Ditto ditto May 28, „ 



Ditto, Stokes Bay, March 23, 1859 



Ditto, Stokes Bay, April 19, 1858 



Ditto, between Sheerness and Nore, Oc- 

 tober 5, 1S57 



Ditto, between Sheerness and Sunk Light, 

 October 5, 1857 



Ditto, between Sheerness and Swim Middle, 

 October 30, 1857 



Ditto, down the Swim, October 30, 1857 . . . 



12-56 



8-06 



11-51 



8-55 



9-75 



7-948 



5-597 

 8-268 

 6-469 



11-605 

 11104 

 11255 

 10-530 



13-30 

 1343 

 13-54 

 13-72 

 13-70 

 13-82 



123 

 620 

 623 



879 

 837 

 802 

 130 

 006 



1294 

 1292 

 10-62 

 12-24 



1531 



12-902 



12533 



12-533 



14573 

 14-573 



