(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 „

No. 1

6.083

320 „

72 lbs.

No. 2 carries 2/9 more than No. 1.

No. 2

10.083

392 „

Flat Vessel. No. 1

4.17

192 „

42 lbs.

No. 3 carries 2/9 more than No. 1.

Schooner. No. 3

8.41

234 „

No. 1

5.75

320 „

42 lbs.

No. 3 carries 2/15 more than No. 1.

No. 8

10.25

362 „

Flat Vessel. No. 1

4.17

256 „

0

No.3 difference at this rate of speed.

Twin Vessel. No. 4

4.

256 „

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 „