The Ariane 5 DAAR from Kongsberg is a Attach and Release Mechanism with flight limit load value of 507 kN. This mechanism has a stiffness value of 390 MN/m and has a separation time of 5 ms. It has a mass of 105-190 kg and has more than 90 % of the total thrust. The DAAR transfers the lateral loads between the main stage and the boosters. It has a length range of 1250-2067 mm with a length adjustment of +/- 80 mm. The functions of the DAAR are to transmit loads between the EAP and the EPC throughout the launch vehicle’s life, assist in the EAP/EPC separation upon receipt of a pyrotechnical order and to connect and adjust the EAP and EPC during the launch vehicle integration.
