Accessing Block based on local Position relative to a known block

Hi,

Before I describe my problem I would like to take a moment to describe in advance what I am trying to achieve in case there is a simpler method. If there is a thread that has already discussed this exact problem I apologize in advance as I couldn't find anything related, a link would be much appreciated.

I am trying to design a simple unguided missile for now (with the aim of making it guided later) that can be launched from multiple firing platforms on a variety of ships without...

Accessing Block based on local Position relative to a known block