Aerospace and defense

Etteplan is one of the leading engineering companies specializing in mechanical design and structural analysis of both civil and military aircrafts. Etteplan has been serving organizations specialized in defense and security products and services as well as agencies and authorities providing materials and systems to civil and military organizations for almost 50 years. 

Our services for aerospace and defense industries 

We serve aerospace and defense industry customers in several areas, including mechanical design and stress calculations, software and hardware development, flight mechanics, technical feasibility studies, system verification and testing. We have special expertise in composite structures and Unmanned Aerial Vehicles (UAVs). Many of our customers have benefited from our systems engineering expertise with focus on system safety and requirement management. We have developed control systems and electrochemical energy storage systems and we work with integrated logistics support (ILS), performance calculation and balance charts for commercial airlines.


Our areas of expertise

Etteplan’s expertise includes balancing and performance calculations as well as product development services and procurement of aerospace systems. Our expertise in high-performance fiber reinforced composites can be seen in several commercial aerospace applications. 

We are as rigorous as the specifications

Our experts are well versed in specifications and regulatory requirements placed on technical documentation in the aerospace and defense industries, such as such as S1000D, Simplified Technical English (ASD-STE100). Our work complies also with ATA industry specifications. 

Our aerospace and defense customers


Etteplan’s customers in the aerospace and defense industries include Rolls-Royce, SAAB, Embraer, Selex, American Airlines, Lockheed Martin, the Federal Aviation Administration (FAA), EADS, Patria, the Dutch Ministry of Defence, and Swedish Defence Material Administration to name a few.

Rolls-Royce logoAmerican airlines logoEmbraer logoSelex logoSaab logoLockheed Mertin logoFederal Aviation Administration logoEADS logoboeing logo

“Etteplan is our long-standing partner in mechanical engineering and technical product information solutions. Etteplan is goal-oriented and continuously develops our business cooperation. Thanks to Etteplan, we are able to maintain our delivery reliability, despite major fluctuations in demand in our sector."

Pekka Korhonen SVP, Product Development Patria Land Systems Oy

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Etteplan and Senop strengthen their collaboration

Etteplan Oyj, an engineering company that specializes in industrial engineering services, embedded systems, IoT (Internet of Things) and technical documentation, and Senop Integration, a Patria Group company, are deepening their collaboration through an outsourcing agreement. According to the agreement, Etteplan will be in charge of design- engineering for Senop’s integration products and customer projects. Customer projects refers to tailoring Senop’s container system to meet customers’ various demands.


A massive modernization project is underway at Helsinki-Vantaa airport. In large investment projects, it is paramount that the engineers can work with up-to-date baseline data. Finavia chose Etteplan as its partner to make the technical documentation process even more reliable.