Bob, the issue was 12/80, the 1980 Nats special issue for MA. If you build one go as light as you can. I built one, powered it first with two McCoy .19's and then recently change the set up to two Brodak .25's. Still flys like a pig. Sure looks good in the air if you like "Low and slow"
The attached picture was taken during a visit from a CL modeler from Sweden.