The 576 (576 sq. in.) for the LA46 was developed along the Beringer lines of airfoil and flaps by Pat Johnston. Dee has flown his 576 for quite a while now. It is all he expected and more, I understand.
The 526 came next (mainly just shrunken) for .40 size engines.
Pat just sent me a revised set of *207* plans for a Norvel .061 Big Mig. I got the 576 plans when the plane was announced, and thought about a 1/2A size on the same planform. Pat came through with a set of plans suited for a .049/.061 after I bugged him for a while! It looks great on paper.
There have been a LOT of new designs based on the Ringmaster lately, including a 1000 sq. in. *S-1*, a .60 sized Biplane, a really enlarged Super Ringmaster, etc., etc..
A real eye opener is an S-1 Lite from Pat (OTS legal) that is designed to build in the low 20 oz. range. Power is the Brodak .25 or LA .25.
From what I understand, Pat and Dee Rice went in on a laser cutter and are going to be offering laser cut parts for all of Pat's plans, according to Pat.
email: patsplans *at* yahoo *dot* com .....just substitute *@* and *.*