Reichel/Pugh adopted some of the Serendipity 43 parameters for their new design but gave Sidewinder slightly more sail area, as well as a considerably greater righting moment (RM), by 11%. The increase in RM was due to a number of factors - she initially had 800lbs less internal ballast than Scarlett O'Hara, much of which was in her keel instead; her up-to-date hull and deck construction, including two full-length longitudinals, which saved weight up high; and had 3.5 inches less freeboard than Scarlett, which lowered the weight of the deck and hardware. Sidewinder initially rated 33.6ft, slightly more than Scarlett's 33.2ft, but this was brought down for the 1985 US Admiral's Cup trials to 33.0ft.
|Sidewinder rounds a top mark ahead of High Roler during the 1985 US Admiral's Cup trials (photo Sail magazine)|
|Lobo powers upwind during the 1985 SORC|
|Sidewinder (left) leads Lobo (centre) and Mokuahi and Mandrake (right) during a light air race in the 1985 SORC (photo Paul Mello)|
|Lobo running downwind during the 1985 SORC|
|The comparative deck layouts of the US Admiral's Cup team yachts - note the narrow stern sections of Sidewinder|
Denmark, France, New Zealand and Papua New Guinea joined the British in selecting an all One Tonner line-up for the 1985 Admiral's Cup. Indeed, 34 of the 57 boats in the fleet were rated at or near the 30.0ft minimum. Against that trend, the US team was comprised of three boats rating near the maximum limit set by the selectors. It did not prove to be a winning combination.
|Sidewinder during the Admirals Cup|
|The Sidewinder crew line the rail during the 1987 Admiral's Cup - complete with pink wet weather gear to match the yacht's spinnaker (photo Seahorse)|
|Sidewinder at the start of the Channel Race in the 1985 Channel Race (photo courtesy Jonathan Eastland/Ajax)|
|Lowell North's Nelson/Marek 42 footer Sleeper|
|Lobo - this photo is possibly from the 1985 Big Boat Series|
|Lobo (left) during the 1985 Big Boat Series|