On the side of I-95 near Baltimore for a couple weeks have been these large “tubes” and “wing tubes”. They’re parked on tractor trailers marked “oversized load”.
Wing tube: a thing that looks like it’s about as long as an airplane wing with the same shape. You might even guess it was a wing except it doesn’t end “flat”. It ends in a cylinder about 10 (?) feet in diameter, which has a set of pins extended from it.
Tube: a giant tube that is as wide as the tube-end of the “wing tube”. It has a matching set of holes for the wing tube’s pins.
They look like they might be made out of concrete, but they’re wrapped in white shrink-wrap (like you see boats in).
I would almost have guessed that they were parts of a giant windmill, but again, the wings terminate in a tube that would fit onto these other cylinders.
Could be some sort of sewer pipe thing, but I dont’ get why the one set of tubes are shaped like wings.
There are 3 tubes, 2 wing-tubes.