727s with Delco Carousel INS units installed
Hello. Anyone still around who flew or worked on 727s that had Delco Carousel INS units fitted? I'm trying to find out if it was common when retrofitting the 727 with them to have them connect up to the HSI/CDI and/or heading bug. I know it was a bit more common for the 727s to be retrofitted with Omega units, and I don't think the Omegas were connected to the HSI/CDI and were only connected to the autopilot via an aux channel.
Of course, some eventually did get retrofitted with modern FMCs with the usual integrations, just looking specifically for info about the old Delco units.
Thanks!