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7. Protection against aggression
The main systems used to protect against these attacks are detailed in figure 37 .
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Protection against aggression
Engine and aircraft integration
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References
Certification
The regulations governing propeller certification are mainly laid down by the American (FAR PART 35) and European (JAR-P) authorities.
Research center
Office National d'Etudes et de Recherche Aéronautique (ONERA)
Main helicarists
Ratier-Figeac, France
Hamilton Standard, United States
Dowty Rotol, United Kingdom
Hartzell Propeller Inc, United States
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