Ehsan,

there are a couple of good threads on RCU of guys who scratch built Supra Fly's - one, the 60 size and the other, Hanno's show 2500 (~2m) version. Both used foam core surfaces and decks like shown in the Dupli Star plans you have.

The Supra Star was a variation of the Supra Fly which had slightly different moments and fuse heights (e.g., canopy shape and position) as well as other details such as wing/stab tip design. The cowl shape also changed and lost the "cheeks" reverting back to a Calypso, and eventually Mystic, style cowl.

I suppose the Supra Star can be thought of as Hanno's first turn-around design. In fact, he first competed with a 120 4s version, came in third if memory serves and went back to a 60 2s smaller model for the next WC where he jumped back into his customary first place. The Dupli Star plan should be a pretty good rendition of this latter model.

Some day I hope to be able to duplicate Hanno's 60 size Mystic powered with an OS Hanno Special. This was his last WC competition entry in 1993.

I look forward to your build!

David