- Urbine Seal Web Page The Seal Team Full Image NASA Glenn Research Center at Lewis Field http://www.grc.nasa.gov/ The Seal Test Facility Full Image Our mission: Objectives: Develop durable, low-leakage turbomachinery seals to meet demands of next generation subsonic and supersonic engines. Develop seal design methods and analytical techniques to assess engine performance impact of advanced seals ...www.lerc.nasa.gov/WWW/TurbineSeal/TurbineSeal.html