Based on work by engineers at General Electric's Aircraft Engine Group. Section titles are ...(1) Introduction ...(2) Turbine Tip Clearance Design Considerations subsections include: Aerodynamic Considerations, Turbine Performance Considerations, Clearance Control Procedure, Rotor and Stator Radial Growth Matching, Engine Casing Bending Deflections, Casing Roundness Control, Vane and Shroud Loads, Turbine Shrouds and Shroud Rubs] ...(3) Clearance Calculation Methodology ...(4) Clearance Analysis ...(5) Turbine Tip Clearance Measurement Device ...(6) Conclusions.