Criticality and Sensitivity Analysis of a Hybrid Laminar Flow Control System on Aircraft Level

Abstract

This report describes the results of an analysis concerning criticality and sensitivity of a hybrid laminar flow control system on aircraft level. The work was performed by the DLR Institute of Flight Systems subcontracted by Airbus Deutschland. A hybrid laminar flow control system (HLFC) at both wings, horizontal and vertical stabilizer should improve aircraft performance by reducing drag at the specific surface. A suction system should be installed at the leading edge of wings and stabilizers to control a laminar flow. The report outlines the results of a parameter study performed for a twin engine long range aircraft in clean configuration. Benefits in aircraft performance due to the HLFC system and consequences of system failures were investigated.