In this photo, I have just finished building & installing the axle assembly in the carriage. The axle assembly for this mortar is quite intersting, as it has a excentric axle, and in this photo, the mortar is in the firing position. Pull the outer handspikes forward, and the axle turns in the carrage, until pins in the inner collars, stop against the angle irons on the bottom of the carriage. The wheels have been driven downward, slightly lifting the mortar off of the surface that it sits on. This allowed the gun crew to drive the mortar back in to the firing position, by the use of the handspikes that are inserted in the wheels.
How big was this mortar in full scale? A man that stood 6 foot tall, was the same height as this mortar! The full size mortar weighed 17,000 pounds.
Model Cannons are great machining projects.
Model Cannon Plans
Shop photos of the Dictator under construction....