Austrailian Kenworth C510 road train
https://www.roadtrains.com.au/articles/kenworth-c510-review/
Custom built high-wing monoplane (1927)
The Spirit of St. Louis (formally the Ryan NYP, registration: N-X-211) is the custom-built, single-engine, single-seat, high-wing monoplane that was flown by Charles Lindbergh on May 20–21, 1927, on the first solo nonstop transatlantic flight from Long Island, New York, to Paris, France, for which Lindbergh won the $25,000 Orteig Prize.
EMD SD70 locomotive
The EMD SD70 is a series of diesel-electric locomotives produced by the US company Electro-Motive Diesel.
Production commenced in late 1992 and since then over 5,700 units have been produced.
While the majority of the production was ordered for use in North America, various models of the series have been used worldwide.
Thunder Crane TC20 stiffleg derrick crane
A derrick is a lifting device composed at minimum of one guyed mast, as in a gin pole, which may be articulated over a load by adjusting its guys. Most derricks have at least two components, either a guyed mast or self-supporting tower, and a boom hinged at its base to provide articulation, as in a stiffleg derrick. The most basic type of derrick is controlled by three or four lines connected to the top of the mast, which allow it to both move laterally and cant up and down. To lift a load, a separate line runs up and over the mast with a hook on its free end, as with a crane.
A stiffleg derrick, also known as a Scotch derrick, is a derrick with a boom similar to that of a guy derrick, but instead of using guy wires to secure the top of the mast, it uses two or more stiff members, called stifflegs, which are capable of resisting either tensile or compressive forces.
https://en.wikipedia.org/wiki/Derrick#Stiffleg
https://www.thundercranes.com/offshore-stiff-leg-crane-rental/
Bucyrus Model 50-B Steam shovel
Twenty-five Bucyrus Model 50-B steam shovels were sent to the Panama Canal to build bridges, roads, and drains and remove the huge quantities of soil and rock cut from the canal bed. All the shovels but one were scrapped at Panama. The survivor was shipped back to California and then brought to Denver. In the early 1950s, it was transported to Rollinsville by Roy and Russell Durand, who operated it at the Lump Gulch Placer, six miles south of Nederland, Colorado, until 1978. This steam shovel is one of two (the other at the Western Minnesota Steam Thresher's Reunion in Rollag, MN) remaining operational Bucyrus Model 50-Bs, and is preserved at the Nederland Mining Museum. Roots of Motive Power in Willits, CA has also acquired a 50-B and operates it for the public once a year at their Steam Festival in early September.
Darpa Project Orion (1958) - Theoretical 8 million ton spacecraft the size of a small city.
(nick-stevens.com)
Darpa Project Orion (1950-60s)
Project Orion was a study conducted in the 1950s and 1960s by the United States Air Force, DARPA, and NASA into the viability of a nuclear pulse spaceship that would be directly propelled by a series of atomic explosions behind the craft.
Non-nuclear tests were conducted with models, but the project was eventually abandoned for several reasons, including the 1963 Partial Test Ban Treaty, which banned nuclear explosions in space, and concerns over nuclear fallout.
https://en.wikipedia.org/wiki/Project_Orion_(nuclear_propulsion)
While Project Orion never progressed beyond the conceptual and early design phases, it remains a fascinating chapter in the history of space exploration. Its audacious approach to propulsion demonstrated the creativity and ambition of scientists and engineers during the early days of the Space Age. Although the project was never realized, it contributed valuable lessons and ideas to the field of astronautics and propulsion technology.
https://www.photonicsonline.com/doc/nuclear-dreams-the-race-to-build-project-orion-0001
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