MacAlpine-Downie: analysis and reliability · Sillage
MA
MA
Design office🇬🇧United Kingdom
MacAlpine-Downie
British multihull design office associated with Rod Macalpine-Downie (1934–1986), designer of the Crossbow catamaran and proa records boats, and naval architect of the catamaran Olympus III in the 1982 Route du Rhum.
Boats on record
11 design
Race wins
00 podiums
Classes managed
1Catamaran
Analysis
Races of the boats built or designed, all classes.
Boats racing
1
of 1 on record
WinsFirst place in the division: same edition, same class.Computed on 9 Nov 2026.See in the glossary
0
0 podiums
StartsRaces started in finished editions. Non-starters (did not start, withdrawn) are not counted.Computed on 9 Nov 2026.See in the glossary
Adjusted finish rateLower bound of the 95 % confidence interval (Wilson) of the finish rate: a boat with 1 finish out of 1 start gets 21 %, not 100 %. Greyed out under 5 starts.Computed on 9 Nov 2026.See in the glossary
Mean performanceShare of the fleet beaten, averaged over every start: each classified result counts for its percentile (100 % for the winner, 0 % for the last), each retirement or disqualification for 0 %, as the last. It thus accounts for the finish rate: a fast boat that often breaks drops. A finish without a known place does not count. Greyed out under 3 counted results.Computed on 9 Nov 2026.See in the glossary
Mean performanceShare of the fleet beaten, averaged over every start: each classified result counts for its percentile (100 % for the winner, 0 % for the last), each retirement or disqualification for 0 %, as the last. It thus accounts for the finish rate: a fast boat that often breaks drops. A finish without a known place does not count. Greyed out under 3 counted results.See in the glossary
