SHIP-BUILDING. 



ftern, will require much attention, and fome pains taken to 

 be made correft. 



Where the quarter-deck line at the fide interfefts the 

 fide-ftern timber 33, in ^^. 4, let fall the ticked perpendi- 

 cular 13 to the half-breadth plan, _/ff. 5 ; and on that per- 

 pendicular fet off the half-breadth of the quarter-deck at the 

 ftern-timber, from the middle line in Jig. j, as taken from 

 Jig. 6. Then fquare down from the lall perpendicular, 

 where the under iide of the deck at the middle line interfefts 

 the middiip-ilern timber, in Jg. 4, to the middle line in 

 Jig. 5 ; and fpring an arc, as the ticked curve I, fliewing 

 the round-aft of the ftern, at the under fide of the quarter- 

 deck, and alfo at the aft-part of the timbers, the heads of 

 which run up to the under fide of the quarter-deck. But 

 fterns having no balcony, the tmibers are continued up- 

 wards as much above the taffrail as they may be wanted, 

 which certainly mult add flrength to the ftern. 



In Jig. 5. draw the fide ftern-timber, vt'hich requires to 

 projedi aft, about ten inches farther than the midfhip- 

 timbers, as at 24, for the convenience of the neceflaries in 

 the quarter-gallery, and abaft that allow three or four 

 inches for the balhifters in the att part of the quarter-gallery, 

 and let that be the aft part of the quarter-deck at the fide. 

 Then defign, in Jig . 5, the midlhip part of the ends of the 

 deck. That part, from the lide-iimber to the outfide of the 

 gallery, (being the aft part of the itool, ) muft be parallel to 

 the ticked line I. 



Strike the perpendicular line 43 shaft Jigs. 4 and 5, and 

 where the ticked line I, which is the round-aft at the heads 

 of the timbers in Jig. J, interfcCts the outfide of the timber, 

 take that half-breadth, and fet it off on the perpendicular 

 43 from the middle line. Then take the round-up of the 

 quarter-deck on a perpendicular, in Jig. 4, at the fide-timber, 

 and fet it off on the half-breadth laft taken from the per- 

 pendicular 43, and fpring the arc H, which is the round- 

 up of the quarter-deck, on a perpendicular. 



Let the quarter-deck, at the middle line in Jg. 4, be 

 continued as far aft as the ends of the deck c, in Jig, 5 ; 

 then from the fine for the under fide of the deck, drop as 

 many perpendiculars as may be thought luflicient to find the 

 true form of the under fide of the deck, from the fide to 

 the midlhips, as may be feen numbered 23, &c. in Jig. 4. 

 Carry down thofe perpendiculars parallel to the line 43, to 

 interfedt the ends ol the deck c, in Jig. 5, and from thence 

 carry them aft parallel to the middle line, to interfeft the 

 round-up of the deck H. Then take the diftance from 

 the hne 43, to the curve H, for the round of the deck at 

 Ij^, Jig. 5, and fet it down the perpendicular 3, from the 

 under fide of the deck, jfj. 4. (for per. 2 was too fmall a 

 round to be perceived in the plate) ; continue the fame re- 

 gular to 20, Jig. 5, which anfwers to per. (j, in Jg. 4. 

 Take the half-breadlh in Jg. 6. to the outfide ol the 

 quarter-deck ftool, and fet it off fquare from the middle 

 Lne to interfeA the ends of the deck ^r, in Jg. 5. Then 

 carry aft, as before, to the curve H, the intermediate lines 

 21, 22, with 23, at the outfide of the ftool, and alio carry 

 them up to the under fide of the deck mjg. 4, as lo, II, 12. 

 Then take the dillances from the hne 43 to the round of 

 the deck H, injg. 5, at 21, 22, 23, and let them oft btlow 

 the under fide of the deck, on the perpendiculars 10, II, 12. 

 Then through thefe fpots, and liiofe before fet off, draw 

 the licked curve to the aft part of the quarter-dick at the 

 middle line. This will be the exadl form of the under fide 

 ef the quarter-deck, if cut oft agreeable to the plan,_^^. 5, 

 from the outfide of the ftool in Jig. 4. Draw the licked 

 line 40, in Jtg. 4, agreeable to the flieer of the fhip, and 

 iiet off below the line 40 about one inch and a half, or as 



much as the joiners require for the pannelling which is at 

 the under fide of the balcony, and from that fet up the depth 

 of the rail. This will give the exad height of the foot- 

 rail in the fheer,_/?f . 4. 



To find the proper height of the aft part of the quarter- 

 deck at the under fide, anfwerable to that in the flieer, 

 fg. 4, take the half-breadths at the ticked lines 14 to 23, 

 on the hne 43, in fig. 5, and fet thi-ni off from the middle 

 line on the bafe line, as on the left-hand, in fig. (>, and ere£l 

 perpendiculars as high as the under fide of the deck. Then 

 take the heights from the bafe line, in fig. 4, to the under 

 fide of the duck, at Nos. 2, 3, &c. and fet them up on their 

 correfponding perpendiculars in fig. 6. Through thefe fpots 

 get in a ticked line, which will give the under fide of the 

 deck in fg. 6 ; then fet off the thicknefs of the deck, and 

 get in the parallel line above it. IJkewife fet off the foot- 

 rail, as before directed, in Jig. 4. This will give the exaft 

 form of the foot-rail, infg. 6, agreeable to the round-aft in 

 the plan of the quarter-deck, /fj. 5. 



To Lay-off' the Breajl-Rad of the Balcony. 



It has been cuftomary to mould the breaft-rail of the 



balcony with the fame mould as the foot-fpace-rail is done 

 with. But to complete the range of ballufters in the bal- 

 cony, fo as to make them have an agreeable rake in the 

 VnQiix, fg. 4, and likewife a proper diminifh of tumbling- 

 home in the plan of the ftern, _^_f. 6, the following method 

 only can be relied on. 



In the plan of the ftern, fg. 6, let the fide-timber bf 

 produced upwards till it inierfefts the middle line ; and 

 from that point to the above-mentioned tlations at the under 

 fide of the quarter-deck, infg. 6, make ticked lines as high 

 as the breaft-rail. Whatever height the upper fide of the 

 breaft-rail is intended to be at the middle line, in fg, C, 

 take that height from the deck at the middle line, and fet it 

 up from the deck at the feveral ticked lines in the dirertion 

 of the faid lines, as well as at the fide-timber. Through 

 thefe fpots get in the upper fide of the breaft-rail D, in 

 fg. 6. Suppofing thofe ticked lines to be ballufters, they 

 fhould all be of an equal length. Where the perpendicular 

 ticked lines 2, 3, &c. infg. 4, inturfecl the lickt-d line for 

 the deck at the fide, draw them upwards parallel to the 

 fide ftern-t.mber ; then take perpendicularly the heights 

 of each of the ticked lines at the upper fide of the breall- 

 rail from the bafe line infg. 6, and fet them, as taken 

 from the bafe line,_yfy. 4, to interlcd their correfponding 

 lines laft-mentioiied. Througli tliefe fpots draw the curve 

 K, which is the upper fide of the breaft-rail, as it will 

 appear in the ihcer,_yfy. 4. 



Drop the ticked perpendicular i, from the aft-fide of 

 the breaft-rail, fy. 4, to the middle Unc, fg. 5, and parallel 

 to that the ticked perpendiculars 2 to 11, vvhicii will be 

 found to interfeft the ticked lines at the upper fide of the 

 breail-rail in fg. 4. Then take the dillances (or half- 

 breadths) from the ticked lines afore-mentioned at the 

 upper fide of the breaft-rail in fg. 6, to the middle line ; 

 and fet them off on their correfponding perpendiculars 

 2, 3, &c. from the middle line infg. 5; a batten pinned 

 through thefe half-breadths forms the line G, or upper fide 

 of the breaft-rail. But obferve, it only gives the form of 

 the bieall-rail correfponding with the aft part of the 

 deck c ; therefore, if the ballufters are laid off in this manner, 

 the fore-fide of the mould is the readier to apply on the 

 deck, in order to cut off the deals, and what the rail is in- 

 tended to nbate on the ends of the deals nuill be added 

 thereto, and as much wood as is neceffary to raile the 

 members of the rail muft be left on the mould .ibaft the 



line c. 



