Editing Titan (rocket family) (section)

===Avionics===
The first guidance system for the Titan III used the AC Spark Plug company IMU (inertial measurement unit) and an IBM ASC-15 guidance computer from the Titan II. For the Titan III, the ASC-15 drum memory of the computer was lengthened to add 20 more usable tracks, which increased its memory capacity by 35%.<ref>Paul O. Larson. "Titan III Inertial Guidance System," p.4.</ref>

The more-advanced Titan IIIC used a [[Delco Carousel]] VB IMU and MAGIC 352 Missile Guidance Computer (MGC).<ref>{{cite web|url=https://apps.dtic.mil/dtic/tr/fulltext/u2/a007056.pdf|last=Liang|first=A.C.|title=Dynamic Calibration for Delco's Carousel VB IMU|date=March 2022|access-date=November 22, 2022|archive-date=November 24, 2022|archive-url=https://web.archive.org/web/20221124231042/https://apps.dtic.mil/dtic/tr/fulltext/u2/a007056.pdf|url-status=dead}}</ref><ref>A.C. Liang and D.L. Kleinbub. "Navigation of the Titan IIIC space launch vehicle using the Carousel VB IMU." AIAA Guidance and Control Conference, Key Biscayne, FL, 20–22 August 1973. AIAA Paper No. 73-905.</ref>