[barryfandango]

It would be really cool if the mast could retract, either using some kind of collapsing structure or a hole dug out underneath the structure. Great for repairs, also would allow a farm to retract for extreme weather events.

[boombip]

Yeah, until the retraction mechanism breaks.

[wlesieutre]

No problem, just put the retraction mechanism in a lifting mechanism to lift it out of the ground for maintenance!