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Allen Guzik January 31, 2008 Trajectory Airplane Launch Trajectory Code and Δ V Drag Comparison

Allen Guzik January 31, 2008 Trajectory Airplane Launch Trajectory Code and Δ V Drag Comparison. Trajectory Optimization. 1/5. Sample Airplane Launch. Trajectory Code Can Now Predict Orbits From an Aircraft Launch. Ascent Trajectory. Launch Site. Initial Height of 12,200 m.

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Allen Guzik January 31, 2008 Trajectory Airplane Launch Trajectory Code and Δ V Drag Comparison

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  1. Allen GuzikJanuary 31, 2008TrajectoryAirplane Launch Trajectory Code andΔV Drag Comparison AAE 450 Spring 2008 Trajectory Optimization 1/5

  2. Sample Airplane Launch Trajectory Code Can Now Predict Orbits From an Aircraft Launch Ascent Trajectory Launch Site Initial Height of 12,200 m AAE 450 Spring 2008 Trajectory Optimization 2/5

  3. ΔV Drag Comparison • Assumptions • Same initial steering law conditions • Orbit obtained is not considered • Same dimensions • Purpose • Attempt to validate how the trajectory code estimates drag • Compare vehicle mass to Δv drag • Compare drag from different launching configurations • Conclusions • Lighter Vehicle Increases Δv drag • Airplane and Balloon Launches decrease Δv drag • Trajectory Code handles drag appropriately, however the magnitude of the results need to be verified. • Future Work • More analysis to further verify if Drag is being modeled correctly. AAE 450 Spring 2008 Trajectory Optimization 3/5

  4. Backup Slides • Sample Affect of Atmosphere on Ascent • Both Cases are for a GROUND LAUNCH With Atmosphere No Atmosphere AAE 450 Spring 2008 Trajectory Optimization 4/5

  5. Backup Slides Sample Balloon Ascent 30,500 m AAE 450 Spring 2008 Trajectory Optimization 5/5

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