Herreshoff #193006es [Unbuilt Day Sailing Boat]

"[1930-02-16] Sun 16: ... At work all day & yesterday on data for 22' w[ater]l[ine] c[enter]b[oard] day sailing boat design for Fishers Is[land]. [A letter written by NGH and held by the MIT Museum (HH.6.33) dated the same day shows this to be a reference to #193006es Unbuilt Day Sailing Boat.]" (Source: Herreshoff, Nathanael G. Diary, 1930. Manuscript (excerpts). Diary access courtesy of Halsey C. Herreshoff.)

"N/A"

"[Item Description:] Penciled calculations, notes, two midship sections, and outboard profile of #193006es Unbuilt Day Sailing Boat titled 'Original sketch for Day Sailing boat Winter of 1929-30'." (Source: Herreshoff, N. G. (creator). Penciled Sketch. Halsey C. Herreshoff Collection at the Herreshoff Marine Museum Acc. 2004.0001.0642. WRDT08, Folder 47. No date (1930-01 ?).)
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"[Item Description:] Penciled preliminary plan of a narrow and shallow centerboard boat. With inboard profile, midship section and plan view. Titled 'Design for Day Sailing Boat [#193006es] by N.G. Herreshoff. Jan[uar]y 20, 1930'." (Source: Herreshoff, N.G. (creator). Pencilled Preliminary Plan. Halsey C. Herreshoff Collection at the Herreshoff Marine Museum Item MRDE02_07000. Folder [no #]. 1930-01-20.)
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"[Item Description:] Two cardboard cutouts relating to #193006es Unbuilt Day Sailing Boat, one titled '1530# lead Daysailing Boat', the other '# 1550, C[enter of] G[ravity]. 15ft aft [of frame] # 17' and marking position of frame 17." (Source: MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.033. Cut-outs. Box HAFH.6.1B, Folder Hull No. 1164 [sic]. No date (1930-02 ?).)
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"[Item Description:] Two pages of displacement calculation notes [for #193006es Unbuilt Day Sailing Boat]." (Source: MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.033. Displacement Calculations. Box HAFH.6.1B, Folder Hull No. 1164 [sic]. No date (1930-02 ?).)
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"[Item Description:] Displacement and lead calculations [for #193006es Unbuilt Day Sailing Boat]. Last page bears initials 'CN' = Charles Nystrom." (Source: Nystrom, Charles (creator). Displacement List. MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.033. Box HAFH.6.1B, Folder Hull No. 1164 [sic]. No date (1930-02 ?).)
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"[Item Description:] Cut-outs including deck profile [for #193006es Unbuilt Day Sailing Boat] titled 'Day Sailing Boat. 27ft o.a., 22ft l.w.l., 6ft 4in Beam, 225 sqft sail. Scale 1/16in'." (Source: MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.033. Cut-outs. Box HAFH.6.1B, Folder Hull No. 1164 [sic]. No date (1930-02 ?).)
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"[Item Description:] Penciled dimensions of #193006es Unbuilt Day Sailing Boat with L.W.L. = 21.56ft and, based on these, scantlings calculations, derived from NGH's Rules for the Construction of Wooden Boats." (Source: MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.033. Scantlings. Box HAFH.6.1B, Folder Hull No. 1164 [sic]. No date (1930-02 ?).)
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"[Item Description:] Penciled dimensions of #193006es Unbuilt Day Sailing Boat with L.W.L. = 21.75ft and, based on these, scantlings calculations, derived from NGH's Rules for the Construction of Wooden Boats." (Source: MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.033. Scantlings. Box HAFH.6.1B, Folder Hull No. 1164 [sic]. 1930-02-05.)
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"[Item Description:] HMCo HH.5.12758 (155-000). Blueprint construction plan with plan view, midship section and inboard profile [for #193006es Unbuilt Day Sailing Boat] titled 'Day Sailing Boat. Scale 1in =1ft-0in. Feb[ruary] 8, 1930'. With list of particulars and scantlings beginning with 'Displacement 58cuft [= 3712lbs]. Frame spaces 1 1/2in ...'. With corrections / changes in red pencil." (Source: Herreshoff Manufacturing Co. (creator). Blueprint. Halsey C. Herreshoff Collection at the Herreshoff Marine Museum Acc. 2004.0001.0087. WRDT04, Folder O.S. 2, formerly MRDE02. 1930-02-08.)
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"[Item Description:] Penciled stability and weight calculations on an opened envelope to NGH in Bristol which apparently had been forwarded to Coconut Grove, Florida, postmarked February 11 and 12, 1930. Displacement calculations arrive at a total of 59.3cuft = 2800lbs. Weight calculations arrive at a total of 1910lbs (incl. 2 crew) plus 1900lbs lead = 3810lbs. On verso a penciled midship-section of a shallow sailing boat [apparently #193006es Unbuilt Day Sailing Boat]." (Source: Herreshoff, N.G. (creator). Penciled Calculations. Halsey C. Herreshoff Collection at the Herreshoff Marine Museum Item MRDE06_00290. Folder [no #]. No date (after 1930-02-12).)
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"[Item Description:] Sections (fwd at right, aft at left) and radials [as described by NGH in his letter to Charles Nystrom dated February 16, 1930] [for #193006es Unbuilt Day Sailing Boat] titled 'Day Sailing Boat. 27ft o.a., 22ft l.w.l., 6ft 4in Beam, 225 sqft sail. Scale 1/16in'." (Source: Herreshoff, N.G. (creator). Sections. MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.033. Box HAFH.6.1B, Folder Hull No. 1164 [sic]. 1930-02-15.)
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"[Item Transcription:] I have taken sections off the model [No. 1128 at HMM for #193006es Unbuilt Day Sailing Boat] at 2ft 6in spaces, that fall on # 2-6-10-14-18-[center]20-26-30-34-38-42 frame spaces, and have carefully drawn them on the accompanying sheet, ready for younger eyes than mine to measure the offsets and I suggest that you measure the offsets on the radiated lines that I have laid out, and put corresponding lines on the scrive-board and take all measurements from the origin of the radial lines, and use the same measurements on mould floor for fairing up diagonals.
Of course you must resort to right-angle coordinates for the half-breadths & sheer, for the keel offsets. I think you will see the advantage of using this system.
I make the displacement 39.3 [corrected in pencil to '59.3' by 'E.M.'] = 3800 lbs. and my tentative weight layout us as follows:
Hull complete & rudder 1300 lbs
Rig 120 lbs
Equipment 70 lbs
Water soaking 100 lbs
Crew (2) 320 lbs = 1910
Outside & inside ballast 1890
[Sum] 3800
[Page 2] The result of calculations indicate a somewhat greater displacement and also stability than I intended, and instead of 225 sqft sail area, the stability warrants about 250 or 260 sq ft. I will send you sketch of rig in a few days.
You have not indicated on the 1in scale drawing (which I am returning) which plan of accommodations you will use. Perhaps you have not decided. For comfort that one with low benches and high coaming is certainly best but for racing in all kinds of weather that one with watertight cockpit & scuppers will be best. As I mentioned before I w'ld have the pendant rudder and no deadwood after the lead --- in which case the lead pattern should be finely tapered away aft aft end. (Like a fishes tail.)
Referring to the drawing. --- I have only guessed at the limits of lead. Your draftsman should make careful calculations to get correct weight & position after the scriveboard has been developed .
A little decrease in draft is permissible or a slab of wood between main keel & lead if the volume is too much. If too little [Page 3] the ends can be extended.
I have indicated some corrections on the drawing --- generally with red pencil. The water line is drawn about 5/.8in too low. Length of l.w.l. is intended to be 22ft 0in. The stem was not correctly drawn. Steam & bend stem piece as to to be about 4in moulded way. Drop the main keel down as indicated, so there is no deadwood under it forward of [frame] # 10.
I have given the boat considerable depth forward, so to eliminate pounding in a seaway as much as possible. Make the floor timbers deeper as indicated, in the forward body. Keel plank 1 3/4in thick should be ample. For the timbers abrest the c.b. casing (# 20 - 26 inclusive) I proposed getting them out with deep lower end and thick enough so to have a good landing on the keel for 2 bolts.
Instead of using any floor timbers lay out the aft post of c.b. casing from centre about 4in above c.b. pin, so to have space at back of c.b. for pawl, just below top of casing.
Referring to the oversize, one way to reduce it w'ld be to decrease the size of outside lead, say 300 or 350lbs. The depth about 1in off sheer height and the sail area to 225 sqft. [Page 4] This w'ld make her about 20 1/2ft l.w.l., a little more freeboard, but I don't think would be so good boat.
If there are any suggestions or changes please write or wire promptly.
Very truly yours, ..." (Source: Herreshoff, N.G. Letter to Nystrom, Charles G. (Herreshoff Manufacturing Co.). MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.033. Box HAFH.6.1B, Folder Hull No. 1164 [sic]. 1930-02-16.)
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"[Item Transcription:] [Cover of a folder] [Verso:] Day Sailing Boat. #1164. Louise Ann. E. Migliori [sic. Most all of the contents of this folder (Obj. No. HH.6.033 at MIT Museum relates to #193006es Unbuilt Day Sailing Boat which subsequently was developed into the smaller #1164s Louise Ann]. [Recto:] March 12 - [19]30 Diagonal Curves & Sections taken by Mr. Alder to shop.
March 24 [- 1930] Same drawings taken back to draw'g room.
Note.
This Folder Contains:
a) Mr. Nath. G. Herreshoff's letter Dated Feb. 16 '30
b) Mr. Nath. G. Herreshoff's sections
c) Preliminary figuring from structural wood
d) (1-2) Displacement Computation (Deadwood after Lead keel) & Line of Buoyancy
e) Chart of centroid of area in a trapezoid." (Source: Anon (Nystrom, Charles G. G?) (creator). Note. MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.033. Box HAFH.6.1B, Folder Hull No. 1164 [sic]. 1930-03-12.)
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Note: This list of archival documents contains in an unedited form any and all which mention #193006es [Unbuilt Day Sailing Boat] even if just in a cursory way. Permission to digitize, transcribe and display is gratefully acknowledged.

"Unbuilt day sailing boat, modeled by N. G. H. in January 1930." (Source: van der Linde, Claas. January 24, 2013.)

"Date from note by N. G. H. on original model 1128." (Source: van der Linde, Claas. January 24, 2013.)

"Displacement 3800 lbs = 59.3 cu. ft. from note by N. G. H. on original model 1128." (Source: van der Linde, Claas. January 24, 2013.)

Note: Research notes contain information about a vessel that is often random and unedited but has been deemed useful for future research.