Published & Unpublished Reports by Jim Sowle

Torpedo Tube Launcher System Documents
Internal Auxiliary Launcher System Documents
Torpedo/Ownship Safe Separation Analysis Documents
Miscellaneous Launch Dynamics Documents

Torpedo Tube Launcher System Documents

"Trajectory Analysis for the Underwater Boost Phase of the Tomahawk Land Attack Missile Launched from [a Modified SSN 637 Submarine] (U)", J.M. Sowle, {Unpublished, Informal NUWC Report}, Naval Undersea Warfare Center Division, Newport RI, 29 Aug 1996 (CONFIDENTIAL).
"Trajectory Analysis of the Tomahawk Loaded Capsule Launched from the SSN 21 Submarine (U)", J.M. Sowle, NUWC-NPT TM 922045, Naval Undersea Warfare Center Division, Newport RI, 10 September 1992 (CONFIDENTIAL).
"Trajectory Analysis for the Underwater Boost Phase of Tomahawk Missiles Launched from the SSN 21 Class Submarine (U)", J.M. Sowle, NUWC-NPT TM 922005, Naval Undersea Warfare Center Division, Newport RI, 28 February 1992 (CONFIDENTIAL).
"Analysis of the December 1989 Recoverable Tomahawk Capsule (RECAP) Launches from the SSN 695(U)", J.M. Sowle, {Unpublished, Informal NUSC Report}, Naval Underwater Systems Center, Newport RI, 30 March 1990 (CONFIDENTIAL).
"Trajectory Analysis for the Recoverable Tomahawk Capsule (RECAP), Part 2", J.M. Sowle, {Unpublished, Informal NUSC Report}, Naval Underwater Systems Center, Newport RI, 13 November 1989 (UNCLASSIFIED).

Internal Auxiliary Launcher System Documents

"SSN 21 Class Internal Auxiliary Launcher Trajectory Analysis of Firing Valve Specification Downstream Pressure and Flow Rate Modifications for Allied Signal Acceptance Testing", J.M. Sowle, G.M. Duarte, N.O. Venier, NUWC Letter Report 9750 Ser 48333/120, Naval Undersea Warfare Center Division, Newport RI, 9 May 1994 (UNCLASSIFIED).
"Trajectory Analysis of Selected Case Scenarios for Small Devices Launched from the SSN 21 Class Internal Auxiliary Launcher", J.M. Sowle, NUWC Letter Report 9750 Ser 38092/75, Naval Undersea Warfare Center Division, Newport RI, 12 Aug 1993 (UNCLASSIFIED).
"SSN 21 Class Internal Auxiliary Launcher Analysis Results - Increased Firing Valve Flow Rates (120 and 130%) and Effects on 3-inch Device Low Impulse Mode", J.M. Sowle, NUWC Letter Report 9750 Ser 38092/47, Naval Undersea Warfare Center Division, Newport RI, 20 May 1993 (UNCLASSIFIED).
"Increased Flow Rates for Lo-3 Mode of the SSN 21 IAL", J.M. Sowle, {Unpublished, Informal NUWC Report}, Naval Undersea Warfare Center Division, Newport RI, Mar 1993 (UNCLASSIFIED).
"Small Device Launch Trajectory Analysis for New Attack Submarine Concept Development, Part II", J.M. Sowle, {Unpublished, Informal NUWC Report}, Naval Undersea Warfare Center Division, Newport RI, 11 Mar 1993 (UNCLASSIFIED).
"SSN 21 Class Internal Auxiliary Launcher - Launch Performance / Trajectory Analysis with Modified Firing Valve Flow Rates", N.O. Venier, G.M. Duarte, J.M. Sowle, NUWC Letter Report 9750 Ser 38092/5, Naval Undersea Warfare Center Division, Newport RI, 14 Jan 1993 (UNCLASSIFIED).
"Small Device Launch Trajectory Analysis for New Attack Submarine Concept Development", J.M. Sowle, {Unpublished, Informal NUWC Report}, Naval Undersea Warfare Center Division, Newport RI, 30 September 1992 (UNCLASSIFIED).
"Analysis, Conclusions, and Recommendations Concerning Internal Auxiliary Launcher (IAL) Device Launch Trajectory Sensitivity Studies (U)", N.O. Venier, J.M. Sowle, NUSC Letter Report 8510/IAL Ser 08333/C37, Naval Underwater Systems Center, Newport RI, 23 Feb 1990 (CONFIDENTIAL).
"Simulated Launch Trajectories of the AN/BRT-6 and the Tethered Two-Way Buoy System (Level-A) from the SSN 637 and SSN 688 Signal Ejectors (U)", J.M. Sowle, J.A. Schwemin, {Unpublished, Informal NUSC Report}, Naval Underwater Systems Center, Newport RI, 25 June 1987 (CONFIDENTIAL).
"Trajectory Analysis for the Internal Auxiliary Launcher of the SSN 21 Submarine Using the Underwater Vehicle Launch Dynamics Simulation (U)", J.M. Sowle, NUSC Technical Memorandum 87-2031, Naval Underwater Systems Center, Newport RI, 30 April 1987 (CONFIDENTIAL).

Torpedo/Ownship Safe Separation Analysis Documents

"Analysis of Safe Separation for the ADCAP Mods Torpedo Launched from the SSN 688 Class Submarine (U)", J.M. Sowle, NUWC-NPT TM 952139, Naval Undersea Warfare Center Division, Newport RI, 17 November 1995 (CONFIDENTIAL).
"Addendum to the Safe Separation Analysis for the Torpedo MK 48 Mods 1, 3, and 4 Launched from the SSN 21 Class Submarine (U)", J.M. Sowle, NUWC-NPT TM 942014, Naval Undersea Warfare Center Division, Newport RI, 30 April 1994 (CONFIDENTIAL).
"Safe Separation Analysis for the Torpedo MK 48 ADCAP Launched from the SSN 21 Class Submarine (U)", J.M. Sowle, NUWC-NPT TM 922035, Naval Undersea Warfare Center Division, Newport RI, 31 December 1992 (CONFIDENTIAL).
"Safe Separation Analysis for the Torpedo MK 48 Mods 1, 3, and 4 Launched from the SSN 21 Submarine (U)", J.M. Sowle, NUSC TM No 912194, Naval Underwater Systems Center, Newport RI, 11 December 1991 (CONFIDENTIAL).

Miscellaneous Launch Dynamics Documents

"Design and Implementation of a Graphical User Interface for the Underwater Vehicle Launch Dynamics Simulation and Supporting Software", J.M. Sowle, {Unpublished, Informal NUWC Report}, Naval Undersea Warfare Center Division, Newport RI, 21 October 1996 (UNCLASSIFIED).
"Launchway Technology -- FY 93 Progress", J.A. Schwemin, J.M. Sowle, G.A. Kim, S.A. Jordon, NUWC-NPT TM 932136, Naval Undersea Warfare Center Division, Newport RI, 30 November 1993 (UNCLASSIFIED).
"Trajectory Analysis for a Proposed Lateral Launch Concept (U)", J.M Sowle, J.A. Schwemin, NUSC TM No 89-2075, Naval Underwater Systems Center, Newport RI, 31 August 1989 (CONFIDENTIAL).
"Unmanned Underwater Vehicle (UUV) Launch and Recovery Dynamic Considerations with an SSN21 Class Submarine -- FY 88 Study", J.A. Schwemin, J.M. Sowle, {Unpublished, Informal NUSC Report}, Naval Underwater Systems Center, Newport RI, 31 May 1988 (UNCLASSIFIED).
"Launch Feasibility Study for the Vertical Expendable Array System (VEAS)", J.M. Sowle, R.C. Thibodaeu, {Unpublished, Informal NUSC Report}, Naval Underwater Systems Center, Newport RI, 29 October 1987, (UNCLASSIFIED).

Please email any questions to: Jim Sowle