Aerojet
former American rocket and missile propulsion manufacturer
Aerojet was an American rocket and missile propulsion manufacturer based primarily in Rancho Cordova, California, with divisions in Redmond, Washington, Orange and Gainesville in Virginia, and Camden, Arkansas. Aerojet was owned by GenCorp, Inc., In 2013, Aerojet was merged by GenCorp with the former Pratt & Whitney Rocketdyne to form Aerojet Rocketdyne.
History
Aerojet developed from a 1936 meeting hosted by Theodore von Kármán at his home. Joining von Kármán, who was at the time director of Guggenheim Aeronautical Laboratory at the California Institute of Technology, were a number of Caltech professors and students, including rocket scientist and astrophysicist Fritz Zwicky and explosives expert Jack Parsons, all of whom were interested in the topic of spaceflight. The group continued to occasionally meet, but its activities were limited to discussions rather than experimentation.
Their first design was tested on August 16, 1941, consisting of a small cylindrical solid-fuel motor attached to the bottom of a plane. Takeoff distance was shortened by half, and the USAAF placed an order for experimental production versions.
Founding
The US Army Air Force wanted GALCIT to manufacture JATO (jet-assist take-off) engines, but GALCIT was primarily interested in research, and Caltech had no interest to become involved in military production. In 1942 von Kármán, Parsons, Frank Malina, Ed Forman, Martin Summerfield and Andrew G. Haley founded the Aerojet Engineering Corporation.
Some aspects of the early operation of the company were described by von Kármán in his autobiography:
On March 19, 1942, Haley obtained our incorporation papers and the Aerojet Engineering Corporation was launched.
“Aerojet” enters the record as former American rocket and missile propulsion manufacturer. Crown Archives preserves that source wording while asking what Aerojet, former and American can confirm, complicate or overturn.
Why this record matters
“Aerojet” is worth following because a concise public description often conceals a longer documentary argument. Here, Aerojet, former and American provides the most credible route into that argument.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 24, 2026. The linked authority identifier is Q381498. None of the 2 selected statements returned an explicit reference. The first chronological checks are 2013, 1936, 1941 and 1942.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Aerojet”, its source revision and the description used here.
- Expand the search: follow Aerojet primary sources, Aerojet archive and Aerojet research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Aerojet”?
- Which institution is responsible for the underlying evidence?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Aerojet” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.