# Connecticut manufacturing: jet engines, submarines and aerospace suppliers > Source: https://netray.co/manufacturing/connecticut-aerospace-submarine-jet-engine-manufacturing > Publisher: Netray (netray.co), AI and integration engineering for ERP and manufacturing systems. > Section: Manufacturing Hubs ## Short answer Connecticut is a small state with an outsized role in aerospace and defense: jet engines from Pratt & Whitney, submarines from Electric Boat in Groton, and helicopters from Sikorsky in Stratford. Behind those primes sits a dense network of precision machine shops, special process suppliers and tooling firms working to aerospace and defense requirements. ## Kind region ## Country United States ## Area Connecticut ## Intro Connecticut is a small state with an outsized role in aerospace and defense: jet engines from Pratt & Whitney, submarines from Electric Boat in Groton, and helicopters from Sikorsky in Stratford. Behind those primes sits a dense network of precision machine shops, special process suppliers and tooling firms working to aerospace and defense requirements. ## Industries ### Jet engines and engine components **Detail:** Engine assembly and a large supply chain of machined rotating and static parts, castings, forgings, coatings and repair operations, with long-running programs and deep supplier relationships. ### Submarine construction **Detail:** Electric Boat builds and supports nuclear submarines, including the Virginia and Columbia classes, and relies on regional suppliers for machined, fabricated and electronic components under naval quality requirements. ### Helicopters **Detail:** Sikorsky designs and builds helicopters in Stratford, with suppliers providing gears, structures, fasteners and machined components. ### Precision machining and special processes **Detail:** High mix, low to medium volume shops cutting titanium, nickel alloys and stainless steel, alongside heat treat, plating, NDT and coating firms. ### Springs, fasteners and small metal parts **Detail:** A long Connecticut tradition of metal forming, stamping, spring and small component manufacturing that supplies aerospace, medical and industrial customers. ## Ecosystem ### CONNSTEP **Type:** MEP center **Note:** The Connecticut Manufacturing Extension Partnership center, providing consulting and training for state manufacturers. ### Pratt & Whitney **Type:** prime contractor **Note:** Aircraft engine manufacturer headquartered in East Hartford, part of RTX. ### Electric Boat **Type:** prime contractor **Note:** General Dynamics submarine builder with its main yard in Groton. ### Sikorsky Aircraft **Type:** prime contractor **Note:** Helicopter manufacturer based in Stratford, a Lockheed Martin company. ### Collins Aerospace **Type:** prime contractor **Note:** RTX business with a significant presence in Windsor Locks. ### Aerospace Components Manufacturers (ACM) **Type:** association **Note:** A Connecticut trade association for aerospace component suppliers. ### Connecticut Business and Industry Association (CBIA) **Type:** association **Note:** The state's largest business association, active on manufacturing policy and workforce. ### University of Connecticut **Type:** university **Note:** State university with engineering programs and research ties to aerospace and advanced materials. ## Requirements - AS9100 and AS9120 quality management - Nadcap accreditation for special processes - ITAR registration with the State Department for defense articles - DFARS 252.204-7012 cyber requirements and CMMC 2.0 for controlled unclassified information - DFARS specialty metals restrictions and domestic sourcing rules - Counterfeit part prevention to AS5553 or AS6174 where required by customers - First article inspection to AS9102 ## Sections ### What Connecticut shops make and for whom **Body:** Most aerospace and defense suppliers here sell to a handful of primes and their tier one partners. They machine parts from difficult alloys, perform special processes or build assemblies, and are measured on delivery, quality escapes and responsiveness to engineering changes. Programs run for decades, so revision control and traceability of old parts matter as much as current production. ### Quoting and estimating realities **Body:** Prime contractors often issue long-term agreements or blanket orders with defined price schedules, and shops quote against drawings with strict flow-down clauses. Estimators need to account for expensive material, long cutting times, special process lead times and first article inspection. Quote accuracy depends on feedback from the floor. If actual hours by operation and scrap by part number are available, estimators can price repeat families with confidence. If they are scattered across the ERP, shop floor system and spreadsheets, quotes lean on judgment. **Bullets:** - Track outside processing lead time and cost per supplier - Include FAI and inspection effort in the quote - Keep customer flow-down clauses linked to the quote and job ### ERP and systems in aerospace and defense shops **Body:** Common choices include Infor SyteLine/CloudSuite Industrial, Epicor Kinetic, DELMIAworks, Global Shop Solutions, JobBOSS, E2 and ProShop, with larger suppliers on SAP or Oracle. Many shops pair the ERP with CAM, inspection software and a document system for drawings and certifications. Typical pain points are lot and heat traceability, certificate of conformance generation, revision control and keeping purchase order flow-down current. These live in several places and are time-consuming to reconcile for audits. ### Compliance, controlled data and private AI **Body:** Suppliers handling ITAR technical data or controlled unclassified information must restrict where that data goes and who can access it. A model hosted by a public AI vendor is rarely acceptable for drawings or contract documents. Open-weight models run on the shop's own GPUs, or in a private environment it controls, avoid sending data out. Netray's approach keeps ERP access read-only by default and requires human approval for any write. The customer remains responsible for its own ITAR and CMMC compliance, and the architecture helps by keeping data inside boundaries the customer already controls. ### Workforce and capacity **Body:** Demand from submarine and engine programs has driven strong hiring needs across the state, and training pipelines with community colleges and technical high schools are important to suppliers. Capacity planning depends on realistic routings and machine data, which is another area where reliable ERP data pays off. ## Faq ### What does Connecticut manufacture? **Answer:** Aircraft engines, submarines and helicopters are the headline products, supported by a large supplier base of precision machined parts, castings, springs, fasteners and special processes. Medical, industrial and consumer products add further variety. ### Who helps Connecticut manufacturers with improvement and training? **Answer:** CONNSTEP is the state's Manufacturing Extension Partnership center. Trade groups such as Aerospace Components Manufacturers and CBIA support suppliers on networking, workforce and policy, and community colleges run manufacturing training programs. ### Do Connecticut suppliers need CMMC? **Answer:** If they handle controlled unclassified information under a Department of Defense contract, DFARS cyber requirements and CMMC 2.0 apply, and primes pass these down in contracts. The required level depends on the information handled. Check your contract clauses and talk to your prime. ### Can ERP data be queried with AI without leaving our network? **Answer:** Yes. A private deployment uses open-weight models on your own hardware, connected read-only to the ERP and to document stores. That keeps technical data in your environment. Your own security and compliance staff should approve the design before use. ## Search terms connecticut aerospace manufacturing, aerospace suppliers connecticut, electric boat suppliers, pratt and whitney suppliers connecticut, connecticut machine shops, erp for aerospace machine shop, cmmc connecticut manufacturers --- Talk to an engineer: https://netray.co/contact?intent=erp_ai | Machine catalog: https://netray.co/agent/catalog.json