Name/Title
Engine, outboardEntry/Object ID
L2003.500.004Description
Johnson TR-40 Giant Twin outboard motor
This 1928 Johnson motor is the largest twin cylinder production outboard ever made. This model was used for Class "E" racing. It produced 25.75 HP at 3500 RPM and weighs 110 pounds. The bore is 3" with a 3 1/2" stroke, providing 49.48 cubic inches.
Porter CollectionCollection
Outboard motorsMade/Created
Manufacturer
JohnsonDate made
1928Edition
Model: TR-40 Giant TwinNotes
Early Date: 1928
Cylinders: 2
HP: 25.75Location
*Cleveland E. Dodge Memorial Launch Building
*Cleveland E. Dodge Memorial Launch Building
Gallery
*Homer L. Dodge GalleryBuilding
*Elizabeth & Bolling Haxall Building