HMCo #1317s Mandoo II

Particulars

Construction_Record_Title.jpgName: Mandoo II
Later Name(s): Royono (1940-)
Type: Aux. Yawl
Designed by: Alden, John
Contract: 1936-1-10
Launch: 1936-6-4
Construction: Composite
LOA: 71' 3" (21.72m)
LWL: 50' 9" (15.47m)
Beam: 15' 8" (4.78m)
Draft: 9' 0" (2.74m)
Rig: Yawl
Sail Area: 2,347sq ft (218.0sq m)
Displ.: 44.4 short tons (40.3 metric tons)
Keel: yes
Ballast: Lead outside
Built for: Berger, D. Spencer
Amount: $43,136.00
Note(s) in HMCo Construction Record: Alden design
Current owner: Private Owner, San Francisco, CA (last reported 2018 at age 82)

Note: Particulars are primarily but not exclusively from the HMCo Construction Record. Supplementary information not from the Construction Record appears elsewhere in this record with a complete citation.

Drawings

Explore all drawings relating to this boat.

List of drawings:
   Drawings believed to have been first drawn for, or being first referenced to
   HMCo #1317s Mandoo II are listed in bold.
   Click on Dwg number for preview, on HH number to see at M.I.T. Museum.
  1. Dwg 077-007 (HH.5.05609); Boom Hangings for 16' Racing Catboat (1890-05-07)
  2. Dwg 086-064 (HH.5.06756): Bilge Pump 5" Barrel # 551 (1901-03-26)
  3. Dwg 114-087 1/2 (HH.5.09587): Boat and Launch Davits # 703, # 743 (1911-03-28)
  4. Dwg 114-135 (HH.5.09635): Davits for 55 ft. Sloope [sic] No. 1074 (1927-11-07)
  5. Dwg 149-000 (HH.5.12307): Sketch of Fo'c'stle Hatch (1930-02-06)
  6. Dwg 149-000 (HH.5.12288): Sails > Sketch Sail Plan Auxiliary Cruising Yawl (1935-01-30)
  7. Dwg 149-000 (HH.5.12263): Boat Support (ca. 1936)
  8. Dwg 149-000 (HH.5.12292): Construction Dwg > [Construction Plan for # 623 / 1317] (ca. 1936)
  9. Dwg 149-000 (HH.5.12293): Construction Dwg > # 623 [Construction Plan] (ca. 1936)
  10. Dwg 149-000 (HH.5.12299): Construction Dwg > 8'-0" Pram. Beam 3'-8". Depth 16". (ca. 1936)
  11. Dwg 149-000 (HH.5.12296): Lines for 50'-9" W.L. Auxiliary Cruising Yawl # 623 (1936-01-14)
  12. Dwg 149-000 (HH.5.12265): No. 623 Offset Table (1936-01-15)
  13. Dwg 025-206 (HH.5.01964): Casting List for # 1317 (1936-02 ?)
  14. Dwg 149-000 (HH.5.12271): Main Mast for No. 623, Herreshoff Hull No. 1317 (1936-02-17)
  15. Dwg 149-000 (HH.5.12270): Main Mast for No. 623 (1936-02-18)
  16. Dwg 149-000 (HH.5.12302): # 1317 Slide Detail (1936-02-19)
  17. Dwg 068-134 (HH.5.04944): Quadrant, Pinion and Bracket (1936-02-25)
  18. Dwg 093-042 (HH.5.07647); Cabin Table - Revised Drawing (1936-03-03)
  19. Dwg 068-000 (HH.5.04947): Compass Bowl (1936-03-04)
  20. Dwg 011-079 (HH.5.01006): Stuffing Box for Rudder Stock (1936-03-06)
  21. Dwg 064-118 (HH.5.04594): Rudder Details (1936-03-11)
  22. Dwg 149-000 (HH.5.12261): General Arrangement > General Arrangement Plan (1936-03-16)
  23. Dwg 092-131 (HH.5.07599): Gangway & Swimming Ladder (1936-03-20)
  24. Dwg 049-124 (HH.5.03803): Fuel and Water Tanks (1936-03-24)
  25. Dwg 149-000 (HH.5.12285): 50'-9" W.L. Auxiliary Yawl (1936-03-31)
  26. Dwg 149-000 (HH.5.12264): Rudder Hangers (1936-04 ?)
  27. Dwg 149-000 (HH.5.12290): General Arrangement > Deck Arrangement Plan for 50'-9" Waterline Auxiliary Cruising Yawl (1936-04-03)
  28. Dwg 149-000 (HH.5.12291): General Arrangement > Deck Arrangement Plan for 50'-9" W.L. Auxiliary Cruising Yawl (1936-04-03)
  29. Dwg 149-000 (HH.5.12268): John G. Alden 50'-9" W.L. Auxiliary Yawl (1936-04-06)
  30. Dwg 149-000 (HH.5.12275): 50'-9" W.L. Aux. Yawl [Mast] (1936-04-07)
  31. Dwg 149-000 (HH.5.12272): Mizzen Mast (1936-04-10)
  32. Dwg 149-000 (HH.5.12266): Main Mast Cone (1936-04-13)
  33. Dwg 149-000 (HH.5.12273): Alden No. 623 - Herreshoff No. 1317 - Main Boom (1936-04-13)
  34. Dwg 149-000 (HH.5.12274): Alden No. 623 - Herreshoff No. 1317 - Mizzen Boom (1936-04-13)
  35. Dwg 149-000 (HH.5.12276): Spinnaker Boom (1936-04-13)
  36. Dwg 149-000 (HH.5.12280): Chain Plates (1936-04-14)
  37. Dwg 149-000 (HH.5.12289): General Arrangement > Cabin Plan for 50'-9" W.L. Auxiliary Cruising Yawl 623 (1936-04-14)
  38. Dwg 149-000 (HH.5.12295): Spreaders (1936-04-14)
  39. Dwg 149-000 (HH.5.12277): # 623 Rigging List (1936-04-18)
  40. Dwg 149-000 (HH.5.12269): John G. Alden # 623 Main Mast Head (1936-04-20)
  41. Dwg 149-000 (HH.5.12287): Sails > Auxiliary Cruising and Racing Yawl Sail Plan # 623 (1936-04-20)
  42. Dwg 149-000 (HH.5.12281): Cockpit and Main Traveler # 623 (1936-04-21)
  43. Dwg 008-079 (HH.5.00778): Propeller Shaft Details (1936-04-29)
  44. Dwg 149-000 (HH.5.12294): Mizzen Mast (1936-04-29)
  45. Dwg 149-000 (HH.5.12278): Boom Hanging (1936-04-30)
  46. Dwg 149-000 (HH.5.12279): # 623 Boom Hanging (1936-04-30)
  47. Dwg 149-000 (HH.5.12286): Crew's Quarters (1936-04-30)
  48. Dwg 149-000 (HH.5.12283): # 623 Stemhead (1936-05-04)
  49. Dwg 167-000 (HH.5.13212): Exhaust Line (1936-05-06)
  50. Dwg 149-000 (HH.5.12282): Hawser Pipes (1936-05-07)
  51. Dwg 149-000 (HH.5.12284): Deck Hatch (1936-05-11)
  52. Dwg 113-004 (HH.5.09481): Mandoo II - Halyard Winch for 5/16" Wire (1936-05-14)
  53. Dwg 149-000 (HH.5.12267): Davits (1936-05-14)
  54. Dwg 149-000 (HH.5.12262): Boom Crotch (1936-05-29)
  55. Dwg 006-000 (HH.5.00605.1): Projected Profile of Proposed 28" Diam. Propeller for Mandoo II (1936-07-22)
  56. Dwg 149-000 (HH.5.12317): No. 1317 [Rigging Detail] (ca. 1937)
  57. Dwg 149-000 (HH.5.12297): Skylight Details for Design No. 673 [623?] - 676 (1938-02-07)
Source: Francis Russell Hart Nautical Collections, MIT Museum, Cambridge, Mass. Haffenreffer-Herreshoff Collection. Together with: Hasselbalch, Kurt with Frances Overcash and Angela Reddin. Guide to The Haffenreffer-Herreshoff Collection. Francis Russell Hart Nautical Collections, MIT Museum, Cambridge, Mass., 1997. Together with: Numerous additions and corrections by Claas van der Linde.
Note: The Haffenreffer-Herreshoff Collection is copyrighted by the Francis Russell Hart Nautical Collections of the MIT Museum in Cambridge, Mass. Permission to incorporate information from it in the Herreshoff Catalogue Raisonné is gratefully acknowledged. The use of this information is permitted solely for research purposes. No part of it is to be published in any form whatsoever.

Documents

Nathanael G. Herreshoff

"[1936-06-04] Thu 4: ... The Alden design 50 f[ooter] [#1317s Mandoo II] launched early.
[1936-06-12] Fri 12: ... The new Alden designed 50' [yawl, Mandoo II #1317s] left today.
[1936-06-26] Fri 26: ... Mandaly II [sic, #1317s Mandoo II] the new craft returning from the Bermuda with broken forestay fitting. ..." (Source: Herreshoff, Nathanael G. Diary, 1936. Manuscript (excerpts). Diary access courtesy of Halsey C. Herreshoff.)

"N. G. HERRESHOFF 6 WALLEY STREET BRISTOL, RHODE ISLAND April 28 1936. {1936/04/28} Dear Francis, ... I understand the lot of dinghys built for M.I.T. intrests are about finished, and work is rather centered on a cruiser of about 50 ft of Alden's design, and for the present owner of Wildfire, which is now at the dock. ... Your affect - Father." (Source: Mystic Seaport Museum, L. Francis Herreshoff Collection, Box 17, Folder 12: Letter from N. G. Herreshoff to L. F. Herreshoff.)

Other Contemporary Text Source(s)

"... Herreshoff has started laying down the lines of a 52-foot waterline cruising-racing yawl [#1317s Mandoo II] from the design of John G. Alden for D. Spencer Berger of New Haven. The new craft which will be 72 feet overall will unquestionably be an entry in the coming Bermuda race in June as her owner has been an enthusiastic offshore racing man in schooner Mandoo for several seasons. Berger also owns the 92-foot schooner Wildfire [#891s] in which he is at present cruising in the West Indies. ..." (Source: Fowle, Leonard M. "Notes from Week's Log." Boston Globe, February 2, 1936, p. A25.)

Other Modern Text Source(s)

"1936. ... Herreshoff had underway the 71-foot yawl Mandoo [#1317s] for Spencer Berger and had a contract to build 40 lapstrake dinghies for the Nautical Association of M. I. T., also a Star [#1316s Nova], the only one ever built at Bristol, to go to Great South Bay. ..." (Source: Davis, Jeff. Yachting in Narragansett Bay. Providence, 1946, p. 75.)

"Mandoo II
Alden Design No. 623
Yawl, Full Keel
Principal Dimensions (Imp.; Metric)
Length on Deck: ft/m 71'3; 21.72
Designed Waterline Length:ft/m 50'9; 15.47
Beam: ft/m 15'8; 4.78
Draft: ft/m 9'0; 2.74
Displacement: lbs/kg 88,750; 40,256
Type: After Cockpit
Year Designed: 1936
Construction Material: Other
Number Built: 1
Specifications: Yes
Block List: Yes
Original Name: Mandoo II
Later Names: Royono
Owner: D. Spencer Berger, New Haven, CT
Builder: Herreshoff Mfg. Co., Bristol. RI." (Source: http://www.aldendesigns.com/99years/detail.php?ID=996&s=1, retrieved October 18, 2011.)

"Royono Takes Up Residency On SF Bay
During the process of editing images from the 2016 Master Mariners Regatta, we had a bit more time to take a closer gander at some of the boats participating. One that had really caught the eye was this 71' Alden designed, Herreshoff beauty built 1in 1936 in Bristol Rhode Island, Royono.
Launched as Mandoo II for D. Spencer Berger, where she raced actively from 1936 to 1939 before being sold to John B Ford and moved to the Great Lakes.
She was baptised as Royono, which translates to 'happy home on the water' in the local Native American dialect.
She raced intensively for a decade on the Great Lakes for a decade, including numerous Chicago Mackinac races before being donated to the US Naval Academy in Annapolis in 1950.
For the next 17 years, she raced extensively on the Eastern Seaboard, winning the 1952 Newport Bermuda Race and was acquired by John F Kennedy for a period of time in the 60's.
From 1967 through 1973 she had several different owners, had a major refit in Maine, spend time as a charter boat in the Caribbean.
In 1975 she was arrested for smuggling marijuana and was brought to Florida by the USCG. In 1976 she was sold at auction to Mike Davis and Geoffrey Gibson, who recognized the boats vintage and had her restored in Massachusetts.
In 1985, she was sold to Philippe Bommer and moved to the Mediterranean where she sailed in many of the classic's regattas.
In 2001-2003 she exchanged owners once again and underwent an intensive retrofit including replacing her framework with steel Classic Works in La Ciotat to include all new steel frames, ensuring she was fully restored to her former glory yet still retained her magnificent original interior.
She was recently acquired by an unnamed Bay Area interest, and should be gracing the waters of San Francisco Bay for who knows how long.
She does have a slip at the San Francisco Marina, but with the current lack of water at entrance, she cannot get to her berth and is side tied in Sausalito at the moment!" (Source: www.sail-world.com/145414, June 10, 2016, retrieved February 6, 2019.)

Archival Documents

"[Item Description:] Handwritten notebook titled on outer cover 'Droughting Room. Blue Prints Record' providing a list of drawings with information in columns titled 'Issued To', 'For Job', 'Date', 'Date Returned', '[Date] Destroyed', and 'Remarks'. Vessels mentioned are #1266s BELISARIUS, #1267 FROSTFISH, #395p Owner Launch for St.Y. VIKING, #1265s NITRAMON, #1204s SILVERHEELS, #1233s RAINBOW, #1276s PRIM, #1275s MITENA, #907s PLEASURE, #931s NASSAU, #711s VENTURA, #900s IRIS, #982s WATER LILY, #891s WILDFIRE, #1147s WEETAMOE, #954s MARY ROSE, #880s JOSEPHINE, #788s MANATEE, #1146s ENTERPRISE, #1212s TRONDA, #1282s 12 1/2 for H. V. Reed, #1302s Amphicraft for N. F. Ayer, #1304s Amphicraft for Charles A. Welch, #1286s 12 1/2 for Mr. Maitland Alexander, #1311s Amphicraft for Dr. Seth M. Milliken, #1313s Dinghy for #663s RAMALLAH ex-ISTALENA, #1314s HMCo Yard Skiff, #408s PELICAN, #1315s BRENDA, #396p Power Tender for FONTINALIS, #397p Power Tender for FONTINALIS, #329p CAROLA, #1318s Sailing Dinghy for Henry S. Morgan; #1316s NOVA, #1319s Tech Dinghy, #1317s MANDOO II, #405p Surfboat, #1379s Fish Class for H. M. Lautmann (MERRY HELL), #1385s TINKER TOO, and #1384s AVANTI. 23 pages were used. Undated, the dates range from October 1934 to September 1936." (Source: Herreshoff Manufacturing Co. (creator). Notebook. MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.106. Box HAFH.6.3B, Folder Blue Print Record Book. No date (1934-10 to 1936-09).)
① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪ ⑫ ⑬ ⑭ ⑮ ⑯ ⑰ ⑱

"[Item Description:] Advertisement for Maxim Silencer model TR for marine engine exhaust. Apparently relating to #1317s MANDOO II." (Source: Maxim Silencer Co. (creator). Advertisement. MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.041. Box HAFH.6.1B, Folder Hull No. 1317s. No date (1936 ?).)
①

"[Item Description:] Typed 'Outline Specification and Equipment List' for #1317s MANDOO II. Marked 'Copy'. 4 pages" (Source: MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.041. List. Box HAFH.6.1B, Folder Hull No. 1317s. 1936-01-09.)
① ② ③ ④

"[Item Description:] Estimate lists for #1317s MANDOO II." (Source: MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.041. Estimates. Box HAFH.6.1B, Folder Hull No. 1317s. 1936-04-16.)
①

"[Item Description:] Sketches of hardware, layout of wiring for #1317s MANDOO II." (Source: MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.041. Sketches. Box HAFH.6.1B, Folder Hull No. 1317s. 1936-04-29.)
①

"[Item Transcription:] List (blueprint) titled 'McNary - April 30, 1936
Alden 623 - Herreshoff 1317 [#1317s MANDOO II]
Block List by Frank Merriman In Conference at Herreshoff Yard April 16, 1936 With Nystrom and McNary'. With 'Note: - This list cannot be considered absolutely final and complete as additions have been made by D.S.B. and minor omissions may have been made.' With further note: ' This list made by McNary from very poor blueprint believd correct but not guaranteed'." (Source: MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.041. List. Box HAFH.6.1B, Folder Hull No. 1317s. 1936-04-30.)
① ② ③

"[Item Transcription:] List (blueprint) titled 'MANDOO II [#1317s] - Alden Design # 623 - Built by Herreshoff Manufacturing Co.
List of Equipment supplied by Merriman Bros. Inc.'" (Source: MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.041. List. Box HAFH.6.1B, Folder Hull No. 1317s. 1936-05-01.)
①

"[Item Description:] Penciled list of drawings for #1317s MANDOO II in plan folder." (Source: MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.041. List. Box HAFH.6.1B, Folder Hull No. 1317s. 1936-07-23.)
①

Note: This list of archival documents contains in an unedited form any and all which mention #1317s Mandoo II even if just in a cursory way. Permission to digitize, transcribe and display is gratefully acknowledged.

Further Reading
  • MacAdam, R. Bruce. "Royono Gets Some New Planking." Wooden Boat #1, September/October 1974, p. 4-7. (459 kB)
    Document is copyrighted: Yes. Short history. Restoration report with emphasis on electrolysis (nailsickness).
  • Jaffry, Gwendal. "The Alden Yawl Royono." Maritime Life and Traditions #15, Summer 2002, p. 28-39. (3,020 kB)
    Document is copyrighted: Yes. Vessel history. Restoration report. Construction plan. Lines plan.

Images

Registers

1940 Lloyd's Register of American Yachts (#3638)
Name: Mandoo II
Owner: D. Spencer Berger; Port: New Haven, Conn.; Port of Registry: Providence, R.I.
Official no. 235006; Building Material Comp[osite]; Type & Rig K[eel], FD [Flush Deck], Aux Ywl
Tons Gross 33; Tons Net 28; LOA 71-3; LWL 50-9; Extr. Beam 15-8; Depth 8-7; Draught 9-0
Sailmaker Ratsey; Sails made in [19]39; Sail Area 2340
Builder Herreshoff Mfg. Co.; Designer John G. Alden; Built where Bristol, R.I.; Built when 1936
Engine Oil Eng. 4 Cyc. 6 Cyl. 4 x 5 1/2; Maker Buda

1947 Lloyd's Register of American Yachts (#5086)
Name; Former Name(s): Royono; Mandoo II
Owner: John B. Ford, Jr.; Port: Grosse Pointe, Mich.
Official no. 235006; Building Material Comp[osite]; Type & Rig K[eel], FD [Flush Deck], Aux Ywl
Tons Gross 33; Tons Net 28; LOA 71-3; LWL 50-9; Extr. Beam 15-8; Depth 8-7; Draught 9-0
Sailmaker Ratsey; Sails made in [19]41; Sail Area 2340
Builder Herreshoff Mfg. Co.; Designer John G. Alden; Built where Bristol, R.I.; Built when 1936
Engine Oil Eng. 2 Cyc. 4 Cyl. 4 1/2 x 5. 1946; Maker General Motors

1950 Lloyd's Register of American Yachts (#5580)
Name; Former Name(s): Royono; Mandoo II
Owner: U.S. Naval Academy; Port: Annapolis, MD
Official no. 235006; Building Material Comp[osite]; Type & Rig K[eel], FD [Flush Deck], Aux Ywl
Tons Gross 33; Tons Net 28; LOA 71-3; LWL 50-9; Extr. Beam 15-8; Depth 8-7; Draught 9-0
Sailmaker Ratsey; Sails made in [19]48; Sail Area 2340
Builder Herreshoff Mfg. Co.; Designer John G. Alden; Built where Bristol, R.I.; Built when 1936
Engine Oil Eng. 2 Cyc. 4 Cyl. 4 1/2 x 5. 1946; Maker General Motors

1955 Lloyd's Register of American Yachts (#6062)
Name; Former Name(s): Royono; Mandoo II
Owner: U.S. Naval Academy; Port: Annapolis, Md.
Official no. 235006; Building Material Comp[osite]; Type & Rig K[eel], FD [Flush Deck], Aux Ywl
Tons Gross 33; Tons Net 28; LOA 71-3; LWL 50-9; Extr. Beam 15-8; Depth 8-7; Draught 9-0
Sailmaker Ratsey-Ulmer; Sails made in [19]53; Sail Area 2340
Builder Herreshoff Mfg. Co.; Designer John G. Alden; Built where Bristol, R.I.; Built when 1936
Engine Oil Eng. 2 Cyc. 4 Cyl. 4 1/2 x 5. 1946; Maker General Motors

1960 Lloyd's Register of American Yachts (#6674)
Name; Former Name(s): Royono; Mandoo II
Owner: U.S. Naval Academy; Port: Annapolis, Md.
Official no. 235006; Building Material Comp[osite]; Type & Rig K[eel], FD [Flush Deck], Aux Ywl
Tons Gross 33; Tons Net 28; LOA 71-0; LWL 52-11; Extr. Beam 15-8; Depth 8-7; Draught 9-0
Sailmaker Ratsey-Ulmer; Sails made in [19]55, [19]59; Sail Area 2340
Builder Herreshoff Mfg. Co.; Designer John G. Alden; Built where Bristol, R.I.; Built when 1936
Engine Oil Eng. 4 Cyc. 4 Cyl. 4 1/2 x 5. 1946. 225 HP; Maker General Motors

2010 USCG
Name: Royono
Owner: [Previous Owner: Classic Yacht Charters]
Official no. 235006; Building Material Steel
Tons Gross 33; Tons Net 28; Reg. Length 60; Extr. Beam 15.7; Depth 8.6
Note: Call Sign: WB2232. Service: Recreational. Note: Data Found In Historical Database No Longer In Documentation..

Source: Various Yacht Lists and Registers. For complete biographical information see the Herreshoff Catalogue Raisonné under Data Sources. Note that this section shows only snapshots in time and should not be considered a provenance, although it can help creating one.

Supplement

From the 1920 and earlier HMCo Index Cards at the MIT Museum
  • Note: The vessel index cards comprise two sets of a total of some 3200 cards about vessels built by HMCo, with dimensions and information regarding drawings, later or former vessel names, and owners. They were compiled from HMCo's early days until 1920 and added to in later decades, apparently by Hart Nautical curator William A. Baker and his successors. While HMCo seems to have used only one set of index cards, all sorted by name and, where no name was available, by number, later users at MIT apparently divided them into two sets of cards, one sorted by vessel name, the other by vessel number and greatly expanded the number of cards. Original HMCo cards are usually lined and almost always punched with a hole at bottom center while later cards usually have no hole, are unlined, and often carry substantially less information. All cards are held by the Francis Russell Hart Nautical Collections of the MIT Museum in Cambridge, Mass.
From the 2000 (ca.) Transcription of the HMCo Construction Record by Vermilya/Bray

Month: Jan.
Day: 10
Year: 1936
E/P/S: S
No.: 1317
Name: Mandoo II
OA: 71' 3"
LW: 50' 9"
B: 15' 8"
D: 9' 0"
Rig: Yawl
K: y
Ballast: Outside lead
Amount: 43,136.00
Notes Constr. Record: Alden design.
Last Name: Berger
First Name: D. Spencer

Source: Vermilya, Peter and Maynard Bray. "Transcription of the HMCo. Construction Record." Unpublished database, ca. 2000.

Note: The transcription of the HMCo Construction Record by Peter Vermilya and Maynard Bray was performed independently (and earlier) than that by Claas van der Linde. A comparison of the two transcriptions can be particularly useful in those many cases where the handwriting in the Construction Record is difficult to decipher.

Research Note(s)

"Alden design no. 623; see Yachting June 1936 and Carrick, Robert W. and Richard Henderson, John G. Alden and His Yacht Designs, Camden, Maine, 1983, p. 391." (Source: van der Linde, Claas. May 2, 2008.)

"[See also:] List of drawings in plan folder (7/23/1936) - Equipment list - Sketches of hardware, layout of wiring (4/29/1936) - Outline specification and equipment list (1/9/1936) - Block list (4/30/1936) - Estimate lists (4/16/1936) - Advertisement for Maxim Silencer model TR for marine engine exhausts from Maxim Silencer Co.. In: Technical and Business Records pertaining to the Herreshoff Manufacturing Company, Series VI, Folder HH.6.41 (Hull No. 1317), Box HAFH.6.1B." (Source: Hasselbalch, Kurt and Frances Overcash and Angela Reddin: Guide to The Haffenreffer-Herreshoff Collection. Francis Russell Hart Nautical Collections, MIT Museum, Cambridge, Mass., 1997, p. 63-79.)

"[Royono was shipped from La Spezia, Italy to Oakland, CA in the spring of 2016, arriving there on May 5, 2016.]" (Source: https://www.importgenius.com/importers/aurai-group-llc, retrieved February 6, 2019."

"Built in 146 days (contract to launch; equivalent to $295/day, 608 lbs displacement/day)." (Source: van der Linde, Claas. January 16, 2024.)

Sail area from Carrick, Robert W. and Richard Henderson, John G. Alden and His Yacht Designs, Camden, Maine, 1983, p. 222.

"[Displacement figure.]" (Source: Anon. "Yachts Designed By John Alden - Alden Designs", www.aldendesigns.com/99years/downloads/designdatabase.xls, retrieved October 18, 2011.)

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

Note

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Citation: HMCo #1317s Mandoo II. Herreshoff Catalogue Raisonné. https://herreshoff.info/Docs/S01317_Mandoo_II.htm.