User Manuals Environmental Qualifications Handbook For Acra KAM-500 Download the Handbook share All Acra KAM-500 modules have been specifically designed to operate in harsh aerospace test environments. This document introduces Curtiss-Wright’s environmental testing of the Acra KAM-500 system. Download Resource Login to download this resource Username Enter your Curtiss-Wright Defense Solutions username. Password Enter the password that accompanies your username. Don’t have an account?Register here.