Model No. 1533: Development Class Boat Model II

Model by: NGH
Made when: September 1929
Stated model scale: 1/12
Model length (ca.): 20.0" (50.8cm)
Implied vessel LOA at 1/12 (ca.): 20' 0" (6.1m)
Power/Sail: S
Vessel Type: Development (Suicide) Class
Hull Configuration: Centerboard
Model location: H.M.M. Workshop North Wall Center

Original text on model:
"Development Class Model II. Sept 17, 1929 - Scale 1/12 16' 8" wl
Measured off Oct. 1929 (In book of HMCo.)
945 lbs [marked on a WL]" (Source: Original handwritten annotation on model. Undated.)

Model discussion:
"[1929-09-14] Sat 14: ... At work making model [Model 1533] for 2nd Development Class boat [#1149s Development Class for George Nichols] ordered by G. Nichols & Junius Morgan.
[1929-10-08] Tue 8: ... At work in measuring off [the] 3rd D[evlopment] Class model [Model 209]." (Source: Herreshoff, Nathanael G. Diary, 1929. Manuscript (excerpts). Access courtesy of Halsey C. Herreshoff.)

"Herreshoff Mfg. Co.
Development Class.
Design I Sept. 14, 1929.
Design II Sept. 18, 1929.
Design III Oct. 8, 1929.
...
Model # II [Model 1533].
Development Class.
No [blank.].
Same specifications as for Model # I [i.e. Model 212 for #1148s:
Scale of model 1/12th.
Timber spaces, 10" except for length of centre-board 6 2/3".
Mould spaces 20" with mould # 1 10" aft of zero.
Timbers are to be set 5" forward and 5" aft of mould spaces, except between moulds #5 & 9 to be 3 1/3" away from mould spaces and also midway.
In making moulds deduct for planking only 5/16".
Keel 1 1/8" thick of white oak, 7" wide at mid length, 3/8" below planking.
Planking white cedar 5/16 thick, to be either lap-seam or batten seam as directed.
If lap-seam to be 10 strakes including sheer strake lapped 7/8", scarfed so to show about 1/16" outside.
If batten-seam, battens cedar 5/16" x 1 3/8". Lay off for 8 strakes and set battens into moulds.
Timbers white oak 11/16 sq.
Stem, white oak steamed & bent, 1 3/4" sided, 2" moulded (siding greater at top).], except
thickness of keel to be 1 1/4" with 1/2" below planking.
(This model is nearly flat floored, with deeper bilge and same beam nearly, as # 1 model.)" (Source: Herreshoff, N.G. [Pencilled note in Offset Booklet HH.4.197.] Haffenreffer-Herreshoff Collection, MIT Museum, Cambridge, MA.)

"... I have made a 3rd model [Model 209], which I think is better than the 2nd [Model 1533] and propose using it for the second boat [#1149s Development Class for George Nichols].
It has been amusement to me in working out details for these boats and their rigs, and I think they will be very interesting craft when completed. ..." (Source: Herreshoff, N.G. Letter to Morgan, Junius S. Herreshoff Marine Museum Collection, Acc. no. 98.49. Correspondence, Folder 32 (new), 181 (old). October 13, 1929.)

Model identification:
"See model sequence 209, 212, 1321." (Source: Curator Herreshoff Marine Museum, 2004.)

Related model(s):
Model 0209 by NGH (1929); #1149s Pig in a Bag Model 0212 by NGH (1929); #1148s Model 1321 by NGH (1929); sail Model 1533 by NGH (1929); sail