Dear Sir/Madam, With reference to the subject matter cited above I wouldliek to bring to your kind notice that we are a Central Govt. PSU, Govt. of India organization working in the field of Avionics and Aerospace Electronics & Systems for Civil Aviation. Sir/Madam, we have a Case Study wherein an important Avionics system which can perform the autopilot functionality has been modeled using Simulink and needs to analysed for Safety constraints and these things can be done seamlesely using COMPASS tool set. In this regard, I request your goodself to kindly look into this matter and do the needful in this reagrd and kindly arrange for a license along with the executables to install and run the COMPASS toolset. Please do the needful at the earliest and do kindly oblige. Thanking you, Regards, Kushal K S Ph No. +91-9731717210, 9986545188 Senior Project Fellow, CSIR-National Aerospace Laboratories, Bengaluru 560017.