Responsive Access Small Cargo Affordable Launch (RASCAL ...

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Table of Contents: Table of Contents:............................................................................................................... ii List of Figures:...................................................................................................................iii Abstract:.............................................................................................................................. v List of Acronyms and Symbols: ........................................................................................ vi Introduction:........................................................................................................................ 1 Motivation:.......................................................................................................................... 1 Initial RASCAL Design:..................................................................................................... 2 Design Methodology:.......................................................................................................... 7 Design Disciplines: .............................................................................................................8 Aerodynamics: ................................................................................................................ 8 Propulsion Design:........................................................................................................ 11 Turbofan Design:...................................................................................................... 12 MIPCC Design: ........................................................................................................ 13 Hybrid Design:.......................................................................................................... 18 Solid Design:............................................................................................................. 19 Trajectory:..................................................................................................................... 19 Aircraft Trajectory:................................................................................................... 19 Launch Vehicle Trajectory: ...................................................................................... 20 Weights and Sizing: ...................................................................................................... 23 Aeroheating:.................................................................................................................. 26 Operations:.................................................................................................................... 28 Safety and Reliability:................................................................................................... 29 Cost Estimation:............................................................................................................ 31 Baseline Conclusions:....................................................................................................... 36 Design Alternatives:.......................................................................................................... 36 Alternative 1: ................................................................................................................ 37 Alternative 2: ................................................................................................................ 37 Alternative 3: ................................................................................................................ 37 Alternative 4: ................................................................................................................ 38 Alternative 5: ................................................................................................................ 38 GT RASCAL: ................................................................................................................... 43 Conclusions:...................................................................................................................... 51 References:........................................................................................................................ 53 ii
List of Figures: Figure 1: Launch Component Breakdown.......................................................................... 3 Figure 2: Three-view of Baseline RASCAL 1st Stage. ...................................................... 4 Figure 3: 1st Stage Mission Profile..................................................................................... 5 Figure 4: RASCAL Total Mission Profile.......................................................................... 6 Figure 5: Design Structure Matrix for RASCAL Design. .................................................. 8 Figure 6: Drag Variation as a Function of Mach Number................................................ 10 Figure 7: Lift Curve Slopes for 1st Stage of the RASCAL Design................................. 10 Figure 8: Drag Polars for 1st Stage RASCAL Design...................................................... 11 Figure 9: Pratt and Whitney F-100 Turbofan. .................................................................. 12 Figure 10: TBEAT data for F-100 Engine........................................................................ 13 Figure 11: MIPCC Design Features [2]............................................................................ 14 Figure 12: Apparent Flight Altitude Experienced by the Turbo Machinery as a Function of Actual Flight Altitude [6]. .................................................................................... 15 Figure 13: Apparent Mach Number Experienced by Turbo Machinery as a Function of Actual Flight Mach Number[6]. ............................................................................... 16 Figure 14: MIPCC Propellant Consumption Curve Fits as a Function of SLS Fuel Flow Rate [6]...................................................................................................................... 17 Figure 15: Seven Port Hybrid Design............................................................................... 18 Figure 16: Baseline Trajectory (Altitude and Mach Number).......................................... 22 Figure 17: Baseline Trajectory (Thrust and ISP).............................................................. 23 Figure 18: Weight Breakdown for 1st Stage Baseline...................................................... 24 Figure 19: Weight Breakdown for 2nd Stage Hybrid....................................................... 25 Figure 20: Weight Breakdown of Third Stage Solid. ....................................................... 25 Figure 21: Radiative Equilibrium Temperature Calculated from MiniVer. ..................... 27 Figure 22: Excel Operations Tool .................................................................................... 29 Figure 23: Cost Breakdown for RASCAL 1st Stage. ....................................................... 31 Figure 24: Cost Breakdown for Upper Stages. ................................................................. 32 Figure 25: Cost Calculator Input Page.............................................................................. 33 Figure 26: Baseline Cost per Flight. ................................................................................. 34 Figure 27: Baseline Dollars per Pound of Payload........................................................... 35 Figure 28: Payload Capacity for Alternative Designs ...................................................... 39 Figure 29: Optimized Alternatives Performance Comparison.......................................... 40 Figure 30: Cost per Flight Comparisons of Optimized Alternatives. ............................... 41 Figure 31: Dollars per Pound of Payload of Optimized Trajectories. .............................. 42 Figure 32: GT RASCAL Three-view Drawing. ............................................................... 43 Figure 33: Comparison of GT RASCAL, Baseline, and F-15.......................................... 44 Figure 34: Weight Breakdown of 1st Stage of GT RASCAL. ......................................... 45 Figure 35: Weight Breakdown of GT RASCAL 2nd Stage. ............................................ 46 Figure 36: Weight Breakdown of GT RASCAL 3rd Stage. ............................................. 46 Figure 37: First Stage Fuel Breakdown of GT RASCAL................................................. 47 Figure 38: Overall Weight Breakdown of GT RASCAL (Fourth Stage Omitted)........... 48 Figure 39: GT RASCAL Mission Profile. ........................................................................ 49 Figure 40: GT RASCAL Trajectory (Mach & Altitude). ................................................. 50 Figure 41: GT RASCAL Trajectory (Thrust and ISP)...................................................... 50 iii
Page 1: Responsive Access Small Cargo Affor
Page 5 and 6: Abstract: RASCAL is a Defense Depar
Page 7 and 8: Introduction: Due to the uncertaint
Page 9 and 10: This stage will then propel the veh
Page 11 and 12: stages which continue on to orbit.
Page 13 and 14: driving constraint) will then be fl
Page 15 and 16: Once the geometry is defined it mus
Page 17 and 18: Coefficient of Drag 0.6 0.5 0.4 0.3
Page 19 and 20: These characteristics were then ana
Page 21 and 22: To analyze the effect of MIPCC an A
Page 23 and 24: 14. The new Isp of the MIPCC engine
Page 25 and 26: combination selected the overall we
Page 27 and 28: Table 5: POST Trajectory Constraint
Page 29 and 30: Thrust (lbs) 120000 100000 80000 60
Page 31 and 32: Gross Gross Weight Dry Dry Weight W
Page 33 and 34: Temperature (F) 1400 1300 1200 1100
Page 35 and 36: Operations: Number 1st Stages 5 Num
Page 37 and 38: Cost Estimation: The cost estimatio
Page 39 and 40: As this figure depicts the DDT&E fo
Page 41 and 42: profile of the cost charts is due t
Page 43 and 44: Each of these alternatives will be
Page 45 and 46: 1+2+3 1+3 4th Stage MMC 1st Lox Hyb
Page 47 and 48: The design alternatives were costed
Page 49 and 50: GT RASCAL: From this alternative an
Page 51 and 52: As this figure shows the GT RASCAL
Page 53 and 54:
used in the GT RASCAL design is in
Page 55 and 56:
Figure 39: GT RASCAL Mission Profil
Page 57 and 58:
When the final cost numbers of the
Page 59 and 60:
References: 1. Cyr, Kelley, “US L
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