Small investigations to big ones, no one person is an expert at everything and life is about who you know. With a lifetime of coordination and in terms of increasing complexity to draw upon, what is it that you need?
A quick explanation?
Research? Figure out what/where something is?
External design review for a battery or vehicle?
A one person job writing or reporting?
Course or classroom development?
Coordination of a small group?
Coordination of a large group?
To find and/or recover something?
On land or the open ocean?
In a laboratory or office?
An international effort?
Been there, Done each of these.
Part of a group of experienced professionals who can draw upon each other. Open to what is interesting and able to give you the results you want. Let's find an airplane, solve a battery question, or examine a puzzle together.