English Translation Version for Reference Only Number:CTSO-C211 Date of approval:Apr 29 2019 CAAC Approved by:Xu Chaoqun China Civil Aviation Technical Standard Order This China Civil Aviation Technical Standard Order (CTSO)is issued according to Part 37 of the China Civil Aviation Regulations (CCAR-37).Each CTSO is a criterion which the concerned aeronautical materials parts or appliances used on civil aircraft must ply with when it is presented for airworthiness certification. Detect and Avoid (DAA)Systems 1.Purpose. This China Civil Aviation Technical Standard Order (CTSO)is for manufacturers applying for a Detect and Avoid (DAA)Systems CTSO authorization (CTSOA).This CTSO prescribes the minimum performance standards (MPS)that Detect and Avoid (DAA)Systems must first meet for approval and identification with the applicable CTSO marking. 2.Applicability. This CTSO affects new application submitted after its effective date. Major design changes to article approved under this CTSO will require a new authorization in accordance with section 21.353 of CCAR-21-R4. 3.Requirements New models of DAA equipment identified and manufactured on or -1- English Translation Version for Reference Only CAAC CTSO-C211 after the effective date of this CTSO must meet the MPS qualification and documentation requirements in Section 2 of RTCA Document No.RTCA DO-365 Minimum Operational Performance Standards for Detect and Avoid Systems dated May 31 2017 as appropriate to the functional equipmen...