I have a direct connection F20 with a YS.45 and spring airs on it for a faster prop plane. They Cermark has a 60 size with retracts and whatnot too. Also if you can find a GP Patriot.
www.directconnectionrc.com
Here is the Cermark F16 ARF
http://www.cermark.com/Merchant2/mer...egory_Code=AAA
Here is their f20
http://www.cermark.com/Merchant2/mer...egory_Code=AAA