This miniature hit-n-miss engine is remarkably tiny and was featured in the book, The Shop Wisdom of Phillip Duclos on page 108. The engine is only 4”-long and has a 1”-diameter cylinder bore. The flywheel is 2-1/2” in diameter. Mr. Duclos did not claim it was the world’s smallest hit-n-miss engine, but it was the smallest that he had seen run. 

Another view of the hit-n-miss engine with coin for reference.

Exhibit added: April 15, 2015 - Last modified: December 29, 2023

Presented by The Joe Martin Foundation for Exceptional Craftsmanship