Absolutely possible, but why? It is a major change in the design. You would still need a compression
post to carry the load to the keel
, so there would be minimal difference below deck
. Such a switch might mean consulting several different engineers and (if you can find him) the Naval Architect who designed your boat
about the requirements and implications. You may have to buy new standing rigging
as well as the new mast, because of the different forces involved. Engineers probably only charge $200/hr, with a three hour minimum for a problem like this one, depending upon the size of the boat
. (You haven't provided that detail.) The Naval Architect may be insulted by your suggestion and refuse to deface his design. Or he may agree to discuss it at a similar (or higher) fee. You are looking at hefty costs before even throwing away the old mast. If you are wanting a mast that you can raise & lower easily, in a tabernacle, that is a different question. We need more details about the what and why in order to provide better guidance here.