John (or whoever knows the answers), I am seeking information about the retracts shown here: http://www.nitroplanes.com/prmerore.html

Who makes them and what size plane (how heavy) are they intended for?

Why are they called "pre-installed"?

Are they an appropriate size for the 71" CMP hellcat (http://www.nitroplanes.com/hellcat120.html)?

How much modification to the wing (especially the spar) is needed to install retracts into the above hellcat?

Finally, when are you going to have these retracts in stock?


Thanks!