I heard that the clever trailer layout is common to oil derricks. I saw the radar/turbo prototype being sloughed by Jerry Barber and his partner on the
caravele, in maybe 67, booked in with Gooding in Maumee, Ohio.
Jerry later was employed by Chance and within 2 or 3 years, Jerry left and started his own co.
They did have trouble folding the sweeps.
Just to note that our Reverchon grnd mnt Skooter came down in 3.5 hours by my pa. Best I could do was 4. Skydiver came down in 4 also, another jerry was foreman.