" The 48 SRD is a natural step up from the successful Shannon 38 foot SRD. Once we sea trialed the 38 it was very obvious to me that I had a hull design (patent pending) that could travel long distances in every wind and sea condition. Not only did we have a yacht that broke all barriers concerning fuel economy and range it did so using almost half the horsepower compared to conventional hulls. The SRD is not some lumbering displacement hull that travels at only 8 knots and requires some method of stabilizing to prevent excessive rolling in a seaway. It is also not a planing or semi-displacement hull design that requires frequent fuel stops and limits cruising range. And, the SRD design also offers shoal draft making the Inland Waterway, Bahamas, Chesapeake and Great Lakes totally accessible. With a range of over 2500 miles the Shannon 48 SRD at cruising speeds of 12 knots or more will travel from across the Atlantic without refueling.
To take full advantage of the long distance capability of the SRD I set out to create a yacht that would offer accommodations, livability and luxury for weeks and months aboard. In addition to comfort, I also wanted to design a yacht that two average people could handle easily without the hassle of having crew aboard. With single engine and bow thrusters or twin engines, docking and maneuvering the 48 SRD in tight quarters is not a problem because the design lacks the high profile that creates excessive windage found in many larger motor yachts. As an added safety factor, the SRD design provides amazing single engine steering with the twin engines and performance in the event of an engine failure. Engine choices and tankage depend on owners' requirements.
Like all the offshore Shannons that I have built since I founded the company in 1975, the 48 SRD will be built on a custom basis allowing each owner a wide range of interior layout and machinery and engine choices. The interior shown reflects my own personal taste and requirements. I am not a fan of jamming in a bunch of tiny, airless sleeping cabins to accommodate people that are rarely aboard for overnight stays. However, the volume of the 48 SRD will accept many different cabin layouts to suit the most discriminating owner. Regardless of the interior layout and numbers of berths, an important consideration is light and ventilation. I have been aboard far too many yachts that have sacrificed human comfort for the sake of trendy styling. Reverse cycle air conditioning is a wonderful invention, but total reliance on the device for sole air circulation in my opinion defeats the real enjoyment of being aboard a yacht. The Shannon 48 SRD is unique as it is not intended to be a boat that is built to be all things for all people and ends up satisfying no one. I intend this Shannon to be the ultimate long range fuel efficient motor yacht that will do circles around displacement hulls and trawlers. W.S.
January/February 2005 Issue
"Driving the SRD at 18 knots in choppy seas with storm-strength winds churning the waves into a frothy maelstrom, I could not believe the way this boat handled the seas on all points. Slowing to 10 knots, I made runs with following, beam and head seas of nasty proportions, and the motion remained stable and comfortable with no pounding whatsoever} as if the boat wanted me to know it was up to the challenge."
Bill Parletore, Editor
January 2005 Issue http://powerandmotoiyacht.com/boattests/shannon/
"There was no bow rise at all, and in our path we left virtually no wake. Seemed to me that Shannon was really onto something.
As impressive as the hull is in straight-line performance, she really shines in the corners. At fall throttle, I yanked the wheel hard over - a standard boat test maneuver that sometimes elicits startling results. But I've never experienced anything like this. The hull banked ever so slightly and seemed to pivot like it was tied to a string, carving a turn with a radius of about two boat lengths. Tight figure-eights were the sameno fuss, just tracking and turning like she had a six-foot centerboard under her keel. "
George L. Petrie
January 2005 Issue
f'The Shannon 38 SRD we tested topped out at 20.4 knots, cruised at 18.5, with a pair of!90-hp Yanmar LH-series turbo diesels under the engine hatch. Fuel burn was 11 gph at this speed, according to thefloscan meters; do the math and you'll find the 290 gallon fuel capacity will produce a cruising range of nearly 440 nm, including a 10% reserve. "
March 2005 Issue
"The hull is extremely stable in motion, even in beam seas. Yes, as a wave passes under, the hull rolls, then rolls back again, but that's it - no secondary rolling, no ever decreasing arcs. This is great when boat wakes hit from the beam: You go over a bit one way, back a bit the other, then stop on an even keel, like your are riding on shock absorbers. The same stability allows the SRD to stay level on hard-over turns, with neither the inward heel of a planning hull nor the outward lean of a displacement boat. "
November/December 2005 Issue
"With a single engine engaged, it tracked straight, turned easily in both directions and held speeds of better than 12 knots. Pushing the throttle forward created minimal bow rise, and a glance aft confirmed that the stern was in fact riding high and leaving a smaller wake than would be expected of a conventional planning or semi-displacement hull, especially at speeds in the high teens. "
Pierce Hoover, Editor
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