HMCo #600p PT 430

"Building the Motor Torpedo Boats (MTB).
802 MTBs were built in the U.S. during the war to three basic designs; the 87-foot Higgins, the 81-foot ELCO, and the 71-foot Vosper. The Herreshoff yard built the Vosper that was developed as a private design in Britain and first delivered just before the war in 1939. The HMCo received two orders, the first eight in 1943 for transfer to Britain and twenty in 1944 for transfer to Russia.
The boats were powered with three-1350 hp Packard engines each driving through reduction and clutch to a propeller. The design speed was 40 knots and they carried aviation gas for a range of 1500 miles. Two smaller Ford engines provided quiet cruising. The boats were armed with four 50 cal. machine guns, two torpedoes, depth charges and smoke generators on the stern. They were crewed by two officers and eight men.
The MTBs were built in a production line with many pieces formed in quantity from molds and patterns. The keel was white oak and the ribs were built up of plywood and mahogany sawn to shape. The hulls were double-planked mahogany. The decks were mahogany-faced plywood. The hulls were fastened with 43,000 rivets. The contract price per boat was $103,000 and fully equipped they cost as much as a four engine bomber." (Source: Herreshoff Marine Museum. [Plaque on display at the museum.] Bristol, RI, no date [ca. 2005].)

"Laid down 6/04/1943, launched 1/24/1944, completed 2/14/1944, delivered to USSR 2/1944." (Source: http://ourworld.compuserve.com/homepages/mandm/list.htm, retrieved April 3, 2007.)

"USA USS PT 430 (14.02.1944 - 02.1944)
SOV TK 241 (27.04.1944 - ?)

Length OA: 72'6" / 22.10m
Beam: 19'3" / 5.87m
Draft: 5'6" / 1.68m
Displacement: 47 t
Propulsion: 3 × 1,350hp
Speed: 38 knots
Crew: 2 + 11

Shipyard: Herreshoff Manufacturing Co.
Laid down: 04.06.1943
Launch: 24.01.1944
State: USA
Type: PT boat
Class: Vosper 72'
Name: USS PT 430
Commission: 14.02.1944
Transferred to Soviet Union: 02.1944

State: SOV Soviet Union
Type: Motor torpedo boat
Class: Vosper (amer.)
Name: TK 241
Fleet: North Fleet -> Baltic Fleet
Commission: 27.04.1944". (Source: http://www.warshipsww2.eu/shipsplus.php?language=e&period=2&id=100430, retrieved March 29, 2011.)

"[Item Description:] Dimensioned sketch in ink of 'Canvas Boot' 'for muffler control'. Note in upper right corner '600 Class' [#600p, #601p, #602p, #603p, #604p, #605p, #606p, #607p, #608p, #609p, #610p, #611p, #612p, #613p, #614p, #615p, #617p, #616p, #619p, #618p (Vosper Torpedo Boats)]." (Source: Herreshoff Manufacturing Co. (creator). Detail Sketch. MIT Museum, Hart Nautical Collections, Haffenreffer-Herreshoff Collection Item HH.6.085. Box HAFH.6.2B, Folder 600 Class Torpedo/PT Boats. 1944-02-02.)
①

Note: This list of archival documents contains in an unedited form any and all which mention #600p PT 430 even if just in a cursory way. Permission to digitize, transcribe and display is gratefully acknowledged.

• Flight and #600p PT 430 (MIT Museum-made index card)
• 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.

Year: 1944
E/P/S: P
No.: 600p
Name: PT 430
OA: 71'

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.

"[See also:] Sketch of canvas boat [sic, i.e. boot for muffler control] (2/2/1944). In: Technical and Business Records pertaining to the Herreshoff Manufacturing Company, Series VI, Folder HH.6.85 (600 Class [Torpedo/PT Boats]), Box HAFH.6.2B." (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.)

"Exported to Russia." (Source: van der Linde, Claas. May 2, 2008.)

"Built in 234 days (setup to launch; equivalent to $441/day, 443 lbs displacement/day)." (Source: van der Linde, Claas. January 16, 2024.)

"[Displacement 47 metric tons.]" (Source: http://www.warshipsww2.eu/lode.php?language=e&period=2&idtrida=824, retrieved March 29, 2011.)

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