Shy
Thanks for bringing this CAA Safety Notice up. Overall I must say I think it is a good effort from the CAA, particularly as it is for guidance. As you say too, important that they clearly accept private site IMC departures. Whilst I'm with Crab (and probably you) that 0/0 departures are not a problem given training and a good AFCS, the issues ref Vmini in the RFM are valid and achieving Vmini is a much easier departure technique. One thing I would say ref their criteria for establishing suitable AOM, is the loading of the acft, which was not mentioned. Ultimately it is all about acceleration, and there is a huge difference in a mid weight acft, which may achieve Vmini in 250m, and one at MTOW when well over twice that may be required, with a much lower climb gradient subsequently.