The Honeywell name covers several corporate eras. Honeywell's own history records the 1999 combination in which AlliedSignal acquired Honeywell and retained the Honeywell name; later portfolio changes separated Solstice Advanced Materials in 2025 and Honeywell Aerospace in June 2026, leaving Honeywell Technologies as the automation-focused company trading under HON.
For defense manufacturing context, the most relevant current successor is Honeywell Aerospace. Honeywell Aerospace describes itself as an independent aerospace and defense supplier whose technologies are deployed on commercial air transport, business aviation, defense, and space platforms, with a portfolio that includes avionics and navigation systems, engines and power systems, and control systems. That current aerospace business continues the public product line that includes the AGT1500 tank engine, while older records may cite legacy Honeywell, Honeywell-Garrett, or AlliedSignal-era sources.
Aerospace and defense systemsEngines and power systemsNavigation and sensorsControl systemsMilitary vehicle propulsionLegacy torpedo development
Honeywell weapon and component records may cite several related names from different eras, including Honeywell, Honeywell-Garrett, AlliedSignal, Honeywell Technologies, and Honeywell Aerospace. Existing records use Honeywell where sources name that lineage directly; the prose distinguishes current corporate structure from legacy program naming.