FAI Scale (S7) FAI Scale involves documentation data that includes dimensions and photographs of details. The models are measured and judged for accuracy, difficulty, and workmanship. In S7 (scale), extra points are given for the flight including clusters, staging, R/C, etc. In S5 (Scale Atltiude), the altitude is added to the static judging score. For more on FAI go to the USA Spacemodeling page | Multiple Champion Bob Biedron's Silver medal Ariane (S7) at 1996 WSMC in Slovenia. Boost on E30 & 6 A's with R/C ignition of 2nd and 3rd stages (pop-out fins). Also shown, George Reibeshl and Dave O'Bryan (Click on pic) | To S7 Page on USA Spacemodeling |