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1EGeminus Boeing Project Contract No.EVE-16-2929 <br /> 1 Technology Development CEI Project No. 160731 <br /> • <br /> Figure 8: 777-9X CAD Model Used In Case 2 and Case 3 CFD Scenarios <br /> 2.3.4 Hangar Interior Configuration <br /> As part of the 45-04 hangar upgrade for the 777-9X, the wing stands, horizontal stabilizer <br /> platforms, and empennage stand were modified from their original condition and differ from the <br /> CAD model for Case 1. For Case 1/Scenario 1 (air flow measurements only— no painting), the <br /> stackers are not in a known position, and thus are deleted from the model (including the trolley <br /> assemblies). Also, the fuselage platforms (on the centerline under the fuselage) were not <br /> included since these are only used in painting configurations. For Case 1/Scenario 2, active <br /> painting of the fuselage was ongoing and thus the stackers are located in nominal positions along <br /> the fuselage, vertical tail, and engine cowl along with the installation of the fuselage platforms. <br /> The differences between these are illustrated in Figure 9. <br /> 16 <br />