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.
Perhaps the best example of a 30-foot dual purpose boat ever built, excellent performer yet very comfortable. Great condition for her age. The 9.1 is a great sailing boat for racing and/or cruising, designed by Graham & Schlagetter, it is part of the S-2 Grand Slam performance series with lots of comfort below. Her PHRF is around 138. Teak trimmed interior with teak and holly sole round out an attractive interior. Mast step and stringer repair done by a professional boat builder at a cost in excess of $15K. Full instrumentation. This boat sleeps 7 people in a double forepeak berth, two settees and pilot berths and an aft quarter berth. The berths are 6 to 6.5’ long and sports 6’ headroom. The galley lies to starboard of the companionway in an L-shaped configuration with a deep SS sink, a propane 2 burner cooktop and top loading ice box. Across is a navigation station with chart table and 3 drawers. There is a drop down table in the main salon. The fully enclosed head is to port between the forward cabin and the main cabin with a sink vanity and starboard locker and one full hanging locker. On deck there are teak handrails recessed to eliminate tripping. There are two opening deck hatches, six main cabin ports and three side ventilation ports. The slotted aluminum toe rail keeps you on board and is great for tying blocks or fenders to. She has a powerful masthead rig with double spreaders supported by Navtec Rod Rigging. The self-bailing cockpit is 8’4” long with one deep lazarette and one shallow. The sail inventory is very tired. The engine has unknown hours, but has been serviced annually and operates perfectly. This has been a fresh water boat.
If interested, please shoot me a note and I will send complete descriptions and more photos.
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
A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.
Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL
A 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
A 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
A 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
This 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 Beam1.33)
This 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)
Shorter rig.
This listing is presented by SailingAnarchy.com. Visit their website for more information or to contact the seller.
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.
©2024 Sea Time Tech, LLC
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
