1 min read3% Space Shuttle Aero Acoustics Wind Tunnel ModelNASANov 30, 2012 Image Article 3% space shuttle launch configuration; super light weight (SLWT) external tank with protuberances, orbiter, and RSRB's. 3% space shuttle launch configuration; super light weight (SLWT) external tank with protuberances, orbiter, and RSRB’s.