Have you been looking for a 50 foot push up mast but the freight costs were more than the cost of the mast?
Turns out Rohn has started making a special version of their H50 mast, the model 9H50 that collapses to a length that UPS will accept.
Scroll down here:
http://www.3starinc.com/rohn_telescopic_masts.htmllatest Rohn catalog
http://www.rohnnet.com/rohn-telescoping-masts(page "245" (actually like page 3 of the pdf))
Thanks to Jim Lux and Mark N1UK for this information on the TowerTalk reflector.
I am pretty sure this has come up here in the past--guys searching for push up masts....