Use of ECDIS part II

As a follow up to our initial Survey which provided some really useful information, we would like to request your additional help in answering the following questions. If your vessels do not use ECDIS then there is no need to complete. Additionally we anticipate that you will need to contact your Masters to obtain the information so please do so. We would like to receive responses by Friday 10th of May 2019.
1.How do you define safe water in shallow waters?
2.How long does it take the system to re-load or refresh when jumping between scales?
3.When was your ECDIS hardware installed?
4.If available, how reliable is you RADAR overlay.
5.Where ECDIS is primary on the Ships Safety Equipment certificate (Form C, Form E or Form P as appropriate), how would you describe your paper back-up status?
Current Progress,
0 of 5 answered