R-Classes

R-Classes means Racing Inboards, where engine is inside of the boat hull. Normally they use car engines. Hull is hydroplane type or catamaran.

R-1 from about 1970

R-4 (R-2500) from 1970.

R1 from 1984, World Speed Record boat

Formula R-1000 from 2009

R-4 (R-2500) from 1975

R-7000 from 2010

R-2000 from 2001

KD

S-2 Sports Inboard 1500cc from 1972, World Speed Record boat

R-boats from USSR about 1965