Twice in the last few weeks I’ve seen a truck carrying a long cylinder with fins and I’m wondering if anyone knows what it is?
Cylinder about maybe 4’ in diameter and maybe 30’ or 40’ long
2 “fins”, each one gradually starts at the ends of the cylinder and rises to about maybe 6’ extension at the highest
Fins did not appear to have high point at the same spot, like they were offset
Fins are separated by about 90 degrees
No third fin - it’s unbalanced as far as I could tell
The cylinder reminded me of a drive shaft I saw on a tv show about building large ships, with a series of holes/bolts around the end for attaching to something
Truck was on 405 northbound in Seattle area