Model No. 1521: Keel Boat (1910), Centerboarder (1927), Rational Rule Boat (1931)

Model by: NGH
Made when: 1910, 1927 and 1931
Stated model scale: 1/10
Model length (ca.): 32.6" (82.7cm)
Implied vessel LOA at 1/10 (ca.): 26' 1" (7.9m)
Power/Sail: S
Vessel Type: Model Yacht
Model location: H.M.M. Workshop North Wall Center

Vessels from this model:
0 built, modeled by NGH

Original text on model:
"Model originally made in 1910 for sail rating 1000 sq ft. Scale 3/4 Had deep fin keel 6' 9" draft
In Sept. 1927 changed keel for c.b. & raised sheer. Intended for Bay sailing scale length 1 1/4". Scale [unreadable] 1" per ft
(Aug 1931 For NGH Rational Rule 18 Rating @ Scale 1" per ft)" (Source: Original handwritten annotation on model. Undated.)

Comment:
"See penciled pantograph hull sections in the Halsey C. Herreshoff Collection at the Herreshoff Marine Museum from June 18, 1910 (when the model had a deep keel), October 27, 1927 (when it had been altered to a shallow hull with centerboard.) and August 20, 1931 (when it had been adapted to conform with NGH's Rational Rule 18ft Class and he apparently decided to use it for the model yacht #193103es Sprite) and July 1934 (when NGH considered it for use as a model for #1266s Belisarius) which all were made from different versions of this model." (Source: van der Linde, Claas. April 8, 2019.)

Note: Vessels that appear in the records as not built, a cancelled contract, a study model, or as a model sailboat are listed but not counted in the list of vessels built from a model.