Fig. 1 Rotor Disk Clearance in MIL-STD-1289D
Fig. 2 Flow Field at Hover, Modeled with Peter-He 15 State Dynamic Inflow Method
Fig. 3 Flow Field at Hover, Modeled with Prescribed Vortex Wake Method
Fig. 4 Hydra70 Rocket Configuration
Fig. 5 Hydra 70 Rocket Thrust
그림 6 Rocket Installed Position
Fig. 8 Flow Chart of Rocket Launch Analysis
Fig. 9 Downwash Velocity along the Flight Path of the Rocket
Fig. 10 Rocket Pitch along Flight Path of Rocket
Fig. 11 Effect of Main Rotor Interference on Rocket Trajectory
Fig. 12 Main Rotor Disk Clearance
Fig. 13 Launch in Forward Flight Maneuver
Fig. 14 Launch in Rearward Flight Maneuver
Fig. 15 Unsafe Rocket Launch Envelop in Vertical Climb Maneuver
Fig. 16 Downwash Velocity in Vertical Climb Maneuver
Fig. 17 Rocket Pitch Angle in Vertical Climb Maneuver
Fig. 18 Unsafe Rocket Launch Envelop in Forward Climb Maneuver
Fig. 7 The Validation of Rotor Induced Flow Distribution at Rocket Pod Waterline level
Table 2 Rocket Mass and Configuration
참고문헌
- Hess J. L. and Clark R. W., "Improved trajectory calculation for helicopter launched missiles," Department of the Army U.S. Army Research Office, DAG29-76-C-0021, 1979.
- Wei, F.S. and Gjestvang, J., "Store Separation Analysis of the Penguin Missile from the SH-2G Helicopter," AIAA, 2001-0992, Reno., 2001.
- Taylor, R.B. and Landgrebe, A.J., "Investigation of the Airflow at Rocket Trajectory and Wind Sensor Locations of a Model Helicopter Simulating Low Speed Flight," UTRC Report No. R79-912985-5, 1979.
- Hee Dong Lee, "Aerodynamic Simulation of Air-Launched Missiles from a Complete Helicopter", J. of The Korean Society for Aeronautical and Space Sciences, vol. 39, no. 12, pp. 1097-1106, 2011. https://doi.org/10.5139/JKSAS.2011.39.12.1097
- Ozge Kapulu and Ozan Tekinalp, "Main Rotor Downwash Effect on Separation Characteristics of External Stores," AIAA Atmospheric Flight Mechanics Conference, 2017, Grapevine, Texas.
- U.S. Department of Defense, MIL-STD-1289D Airborne Stores Ground Fit and Compability, Requirements, 2003.
- Howlett, J.J., "UH-60A Black Hawk Engineering Simulation Program, Volume I - Mathematical Model," NASA CR-166309, Dec. 1981.
- Peters, D.A., and He, C.J., "Finite State Induced Flow Models Part II: Three-Dimensional Rotor Disk," JOURNAL OF AIRCRAFT, Vol. 32, No. 2, March-April, 1995.
- C. Wayne Dahlke, "Hydra 70 MK66 Aerodynaics and Roll Analysis", Technical Report RD-SS-90-6, 1990.