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Subsea Pressure Vessel Forum Group Questionnaire

I’m hoping someone will help me with some research I’m working on for my internship.  I’m looking for information on subsea pressure vessels. If you’re willing to help, do you mind taking this super quick survey[mc1] ?  It doesn’t ask for any personal info., and you won’t be added to any mailing lists.  Please note: These questions are specific to the subsea pressure vessel component:
1.Does your organization or association track market numbers related to pressure vessel usage and/or demand?
2.If you answered yes to Question 1, do you know (or can you estimate) how many vessels are purchased annually (worldwide) in the defense, oil & gas, underwater survey, scientific, or other applications?
3.If you answered no to Question 1, do you know of any research that might track those figures (whether free or for purchase)?
4.What vessel depth ranges do you track? (We are especially interested in 1,000m – 6,000m)
5.What are the typical dimensions for vessels at those depth ranges (specifically, the length and diameter)?
6.What materials are vessels made of at those depth ranges?
7.What are the selling prices for vessels at those depth ranges?
8.What are the typical lead times for vessels at those depth ranges (from order to delivery)?
9.What is the typical mission duration of those vessels (and what operating conditions can impact that life)?