Introduction to the 1955 Evinrude 7.5 HP Fleetwin The 1955 Evinrude 7.5 HP Fleetwin (Model 7518/7519) represents a golden era in American marine engineering. Positioned perfectly between the lightweight 3 HP Lightwin and the larger 15 HP Fastwin, the 7.5 HP Fleetwin was the quintessential family outboard of the mid-1950s. Highly regarded for its portability,…
Introduction to the 1954 Scott-Atwater 7.5 HP Bail-a-Matic The 1954 Scott-Atwater 7.5 HP is a hallmark of mid-century American marine engineering. Known for its distinctive styling and pioneering utility features, this model introduced the revolutionary “Bail-a-Matic” system. Built by the Scott-Atwater Outboard Motor Company of Minneapolis, Minnesota, this outboard was designed to compete directly with…
1954 Evinrude 15 HP Super Fastwin: Technical Guide & Restoration Reference The 1954 Evinrude 15 HP Super Fastwin (Model 15012/15013) is an iconic representative of mid-century American marine engineering. Known for its robust build quality, smooth alternate-firing twin cylinder design, and classic styling, this motor remains a highly sought-after model for vintage outboard collectors and…
Introduction to the 1953 Johnson 25 HP Sea-Horse RD-15 The 1953 Johnson Sea-Horse 25 HP (Model RD-15) represents a high-water mark in post-World War II marine engineering. Introduced during an era of rapid expansion in recreational boating, this motor was a powerhouse of its day, offering enough muscle to plane family runabouts and pull water…
Technical Guide: 1952 Mercury 10 HP Mark 15 Outboard Motor The 1952 Kiekhaefer Mercury Mark 15 is a legendary piece of American marine engineering. Known as a “Super 10,” this motor was part of the transitional post-war era where Carl Kiekhaefer’s company revolutionized the outboard industry with high-RPM, lightweight, and incredibly durable alternate-firing twins. This…
Introduction to the 1951 Evinrude 14 HP Fastwin The 1951 Evinrude 14 HP Fastwin (Model 4443 / 4447) represents a high-water mark in post-World War II marine engineering. Introduced during an era of rapid recreational boating expansion, this twin-cylinder outboard combined portability with robust power. It was highly sought-after by fishermen and family boaters alike…
1950 Johnson 10 HP QD Outboard Motor: Technical & Maintenance Guide The 1950 Johnson Sea-Horse 10 HP (Model QD-11) is a milestone in post-war outboard engineering. Introduced during a period of rapid innovation by the Outboard Marine Corporation (OMC), this motor helped set the standard for mid-range, full-shift outboard motors. This technical guide covers specifications,…
Introduction The 1955 Johnson 5.5 HP Sea-Horse (Model CD-12) is widely regarded by outboard enthusiasts and restorers as one of the finest small outboard motors ever built. Known for its quiet operation, smooth trolling capabilities, and rugged dependability, this model helped define postwar recreational boating. This guide provides a detailed technical overview, specifications, and maintenance…