Posted in A & H. McDonald, Tractors & Engines

A & H. McDonald


A & H. McDonald Imperial Super Diesel

McDonald Type CD 4 1/2 hp – 6″stroke  no. 3655

 The A.H.McDonald Imperial Super Diesel is one of the portable steam engines created by a certain Alfred Henry McDonald—hence the name of the country. His father was a baker and wanted Alfred to become his baking apprentice. However, his real calling was in science and engineering, so he worked with a scientific instrument maker in Melbourne named Henri Galopin. After his four year work with the esteemed Henri, he ended up as a worker for an electrical engineering company. All of these became the foundation of A.H. McDonald & Company, and his job experiences helped him create generator sets and petrol engines.

But it was in 1918 when Alfred first created the so-called “Super Diesel,” a horizontal engine popularly used for road rollers and other stationary machines. Later on, his company imported tractors from the United States and Sweden to create the A.H. McDonald Imperial tractors powered by the iconic Imperial Super Diesel engines.

Unlike other companies, Alfred Henry McDonald’s engineering group started late in the game, during an age when the technology was shifting towards the electrical innovations. But A.H. McDonald & Co. managed to penetrate a market with its tractors and engines through various innovations and engineering wonders. This made the Imperial Super Diesel an amazing engineering creation and Alfred Henry McDonald a pioneer in his field.



I have always had a wonderful memory. when I say “wonderful memory” what I really mean is that I rarely if ever recall horrible things like the weather. I never recall cold or frosty mornings, or even 24 hours of anything dull or boring that might have happened before or after a memorable event, the happy result being all my life's memories are wonderful. Peculiar as it may sound to anyone who might be reading this, I have absolutely marvelous memories that range from breaking one or more of my bones to hanging upside down from an upper branch of an Oak tree with my ankle wedged between two branches. I have heard stories about people that have totally removed from their recollection painful events that had previously occurred in their life. I can believe this because at this precise moment I can recall nothing that was not absolutely wonderful. If by chance I have ever blocked out anything painful I would consider this possibility to be just another wonderful thing. I intend to Blog about my friends and memories on these pages.

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