What Jesse said... [

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I got the retract tailwheel from CJ when I got the main gear retracts, had no idea when I ordered it since I'd not really even looked at the model.
While I've been sidetracked by an un-anticipated addiction to IMAC planes and the Corsair hasn't been finished, I did do a bunch of looking around for information on installing the retract tailwheel. The results of my search were not good. I'm sure there are guys out there who could set it up, but it would take major re-engineering of the rudder control system as well as something for tailwheel steering, then you still need another servo for the tailwheel retract since it's mechanical, not pneumatic.
SO.... mine won't have a retractable tailwheel.