Table A. Experiments With Equal Loads

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This section is from the book "The Engineer's And Mechanic's Encyclopaedia", by Luke Hebert. Also available from Amazon: Engineer's And Mechanic's Encyclopaedia.

Table A. Experiments With Equal Loads

(In favour of No. I.)

Models tried.		United Weights of Vessel and Load.		Divisions in the Arms of Yoke when at 3 Miles per Hour.		Difference.	Divisions in the Arms of Yoke when at 6 miles per hour.		Difference.
Flat Vessel & Coaster.	No. 1 and 2	192 lbs.	each.	No. 1, 48	No. 2, 52	4 Divisions = 1/12	No. 1, 50	No. 2, 50	None.
	ditto	256	"	" 46	" 54	8 " = 1/6	" 50	" 50	None.
	ditto	320	"	" 47	" 53	6 " = 1/8	" 49 1/2	" 50 1/2	1 Division = 2/99
	ditto	392	"	" 45	" 55	10 " = 1/5	" 49	" 51	2 " = 1/24
Flat Vessel & Schooner.	No. 1 and 3	192	"	No. 1, 45	No. 3, 55	10 " = 1/5	No. 1, 50	No. 3, 50	None.
	ditto	256	"	" 43	" 57	14 " = 1/3	" 50	" 50	None.
	ditto	320	"	" 44	" 56	12 " = 1/4	Uncertain.
	ditto	392	"	" 45	" 55	10 " = 1/5	No. 1, 49	No. 3, 51	2 Divisions = 1/24
Flat Vessel& Twin ditto.	No. 1 and 4	256	"	No. 1, 50	No. 4, 50	None.	Uncertain.
	ditto	320	"	" 53	" 47	6 Divisions = 1/8	ditto
	ditto	392	"	" 52	" 48	4 " = 1/12	ditto
	ditto		"

Table B. Experiments With Equal Arms Of The Yoke At 3 Miles Per Hour

Models Compared.	Depth of Immersion in Inches.	Weight of Vessels with their Loads.	Difference.
Flat Vessel. No. 1	4.91	256 lbs.	32 lbs.	No. 2 carries 1/8 more than No. 1.
Coaster. No. 2	85	288 „	32 lbs.	No. 2 carries 1/8 more than No. 1.
No. 1	6.083	320 „	72 lbs.	No. 2 carries 2/9 more than No. 1.
No. 2	10.083	392 „	72 lbs.	No. 2 carries 2/9 more than No. 1.
Flat Vessel. No. 1	4.17	192 „	42 lbs.	No. 3 carries 2/9 more than No. 1.
Schooner. No. 3	8.41	234 „	42 lbs.	No. 3 carries 2/9 more than No. 1.
No. 1	5.75	320 „	42 lbs.	No. 3 carries 2/15 more than No. 1.
No. 8	10.25	362 „	42 lbs.	No. 3 carries 2/15 more than No. 1.
Flat Vessel. No. 1	4.17	256 „	0	No.3 difference at this rate of speed.
Twin Vessel. No. 4	4.	256 „	0	No.3 difference at this rate of speed.

N.B. The depth of immersion entered above is that observed when the vessels were at rest, and which did not appear to alter when in motion.

Table C. Experiments With Equal Arms Of The Yoke At 6 Miles Per Hour

Models Compared.	Depth of Immersion in Inches.	Weight of Vessels with their Loads.	Difference.
Flat Vessel. No. 1	4 2/12	192 lbs.		The draught of water noted in the column of immersions was that observed when the models were at rest previous to the commencement of each experiment ; the actual immersion during the experiment was considerably less, especially in the flatter vessels; but there were no means of ascertaining it precisely.
Coaster. No. 2	6 4/12	192 „
No. 1	4 11/12	256 „
No. 2	8 1/12	256 „
Flat Vessel. No. 1	4 2/12	192 „
Schooner. No. 3	7 9/12	192 „
No. 1	4 11/12	256 „
No. 3	9 2/12	256 „
Flat Vessel. No. 1	5 9/12	320 „
Twin Boat. No. 1	5 7/12	320 „

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