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Great choice! Your favorites are temporarily saved for this session. Sign in to save them permanently, access them on any device, and receive relevant alerts.  Kettenburg K-47 MotorsailerKettenburg K-47 Motorsailer is a 46 ′ 5 ″ / 14.2 m monohull sailboat designed by Kettenburg and built by Kettenburg Boats between 1959 and 1963. Rig and SailsAuxilary power, accomodations, calculations. The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more. Classic hull speed formula: Hull Speed = 1.34 x √LWL Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL Sail Area / Displacement RatioA measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more. SA/D = SA ÷ (D ÷ 64) 2/3 - SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
- D : Displacement in pounds.
Ballast / Displacement RatioA measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize. Ballast / Displacement * 100 Displacement / Length RatioA measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more. D/L = (D ÷ 2240) ÷ (0.01 x LWL)³ - D: Displacement of the boat in pounds.
- LWL: Waterline length in feet
Comfort RatioThis ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more. Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 ) - D: Displacement of the boat in pounds
- LOA: Length overall in feet
- Beam: Width of boat at the widest point in feet
Capsize Screening FormulaThis formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more. CSV = Beam ÷ ³√(D / 64) A ketch rig was also available. SA 898 sq.ft. Embed this page on your own website by copying and pasting this code. ©2024 Sea Time Tech, LLC This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. | 
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Find Kettenburg boats for sale in your area & across the world on YachtWorld. Offering the best selection of Kettenburg boats to choose from.
K-43 GUARDIAN, needs a mast". video (5.70 mb) told by Paul Kettenburg about the 1st Starlet boat he and George built, their first sail/race, and how they began their reputation for building fast sailboats. Welcome Alex Prato! Owner of PCC #16, Janley, from Manchester, England. Welcome Gordon McRae!
Located in San Diego, CA, Kettengurg boats was founded by George Kettenburg Jr. who began by building small power runabouts and then sailing yachts, most notably the PC Class which is still raced in the San Diego area to this day. During the 1930's, when recreational boating dropped off, the company found new business in the construction of a specialized 'Albacore' fishing boat. During ...
Find Sail Kettenburg boats for sale in your area & across the world on YachtWorld. Offering the best selection of Kettenburg boats to choose from.
Paul Kettenburg had re-joined the Kettenburg Boat Works in 1943 after having left the company to go work for General Electric in the lean depression years and by 1949 Paul was convinced there was a place in the lineup for a sloop between the 42' PCC and the 32 ' PC hull for about 60% of the cost and water displacement.
Blue Chip II is hull number 78 of the Kettenburg Pacific Class. This one-design model was originally commissioned by the San Diego Yacht Club and the first one was delivered in 1929. Over the next 30 years, 83 hulls were built of mahogany on oak by the Kettenburg Boat Works. The line was designed by Geroge Kettenburg, an avid racer who ...
A boat with a BN of 1.6 or greater is a boat that will be reefed often in offshore cruising. Derek Harvey, "Multihulls for Cruising and Racing", International Marine, Camden, Maine, 1991, states that a BN of 1 is generally accepted as the dividing line between so-called slow and fast multihulls.
9 sailboats built by Kettenburg Boats. Located in San Diego, CA, Kettengurg boats was founded by George Kettenburg Jr. who began by building small power runabouts and then sailing yachts, most notably the PC Class which is still raced in the San Diego area to this day. During the 1930's, when recreational boating dropped off, the comp...
Kettenburg is a boat builder in the marine industry that offers boats for sale in a range of sizes on Boat Trader, with the smallest current boat listed at 38 feet in length, to the longest vessel measuring in at 50 feet, and an average length of 43.98 feet. Boat Trader currently has 2 Kettenburg boats for sale, including 0 new vessels and 2 ...
Kettenburg 50 is a 50′ 0″ / 15.2 m monohull sailboat designed by Paul Kettenberg and built by Kettenburg Boats between 1960 and 1967. ... The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more. Formula. D/L = (D ÷ 2240) ÷ (0.01 x LWL)³ D: Displacement of the boat in pounds ...
Find Kettenburg Sailboat for sale near you, including boat prices, photos, and more. Locate Kettenburg boat dealers and find your boat at Boat Trader!
Kettenburg 38 is a 37′ 11″ / 11.6 m monohull sailboat designed by Paul Kettenburg and built by Kettenburg Boats between 1948 and 1959. Great choice! Your favorites are temporarily saved for this session.
In fact, George Kettenburg Jr. agreed to build the boat in trade for a piece of land on Point Loma, that the Kettenburg family still owns. She was sold to Mr. George Jessop (of the Jessop Jewelry family) at a later date. Eventually sold to Mr. Paul Hartley Sr. in 1946. Upon his death, his extended family continued to enjoy the yacht.
View a wide selection of Kettenburg boats for sale in your area, explore detailed information & find your next boat on boats.com. #everythingboats
Paul Kettenburg's Story of San Diego's Yacht Building Family (1996) 1 typewritten manuscript (6 pages and 3 photographs) contains a history of the Kettenburg family boat building business, including photographs of the Poggy and PC #43 Author: Robert H. Smith. AO217.01.06 Paul Kettenburg, 92; ran family boat building company (2006, May 29)
Kettenburg Boats. A group to centralize all FB activity related to those that own, sail, maintain and admire the line of sailing and motor boats made by Kettenburg Marine...
Kettenburg PC is a 31′ 9″ / 9.7 m monohull sailboat designed by George Kettenburg Jr. and built by Kettenburg Boats between 1929 and 1959. Great choice! Your favorites are temporarily saved for this session.
kettenburg preowned sailboats for sale by owner. kettenburg used sailboats for sale by owner.
Kettenburg 32 is a 31′ 5″ / 9.6 m monohull sailboat designed by Alan Payne and built by Kettenburg Boats between 1975 and 1978. ... The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more. Formula. D/L = (D ÷ 2240) ÷ (0.01 x LWL)³ D: Displacement of the boat in pounds. LWL ...
Kettenburg K-47 Motorsailer is a 46′ 5″ / 14.2 m monohull sailboat designed by Kettenburg and built by Kettenburg Boats between 1959 and 1963. Great choice! Your favorites are temporarily saved for this session. Sign in to save them permanently, access them on any device, and receive relevant alerts.
A boat with a BN of 1.6 or greater is a boat that will be reefed often in offshore cruising. Derek Harvey, "Multihulls for Cruising and Racing", International Marine, Camden, Maine, 1991, states that a BN of 1 is generally accepted as the dividing line between so-called slow and fast multihulls.