Documents / Report

Department of the Air Force Report, 1996

U.S. Department of War · 1996-09-10 · 181 pages · text from the file's own layer

This final report, dated September 10, 1996, was prepared by the Research Triangle Institute for the Department of the Air Force's 45th and 30th Space Wing safety offices. Titled Modeling Unlikely Space-Booster Failures in Risk Calculations, it shows how rare Mode-5 failures, in which a rocket veers well off its intended flight line, are modeled in the DAMP risk-analysis program. An appendix lists Atlas, Delta, Titan and Thor launch and failure histories through August 1996.

From the source:Release of 2026-05-08 Incident: 9/10/96, N/A. This report describes the Modeling of Unlikely Space-Booster Failures in Risk Calculations, documenting historical launch failure modes and recommending corrective actions to address them using novel modelling techniques.

  • p. 5 …64 6.4 Shaping Constants for Titan IV................................................................................ 65 6.5 Shaping Constants for LLVl .................................................................................... 69…
  • p. 74 …6.4 Shaping Constants for Titan IV Mode-5 shaping constants for Titan IV were developed…
  • p. 77 …Shaping Constants for Titan IV TB (sec) Breakupqa (deg-lb/ft2) B A II 300 none…
  • p. 109 …Titan IIIC and later configurations to include IIIB, IIID, IIIE, 34B, 34D, III/CT, IV, II…
  • p. 155 …Titan II SLV was developed from refurbished Titan II ICBMs incorporating technology and hardware from the…
  • p. 156 …Summa of Titan Vehicle Confi rations Descri Titan II ICBM converted to a man-rated vehicle…
  • p. 159 …2 0 54 WS (first Titan II) 03/16/62 II (N-2) ER 0 55…
  • p. 160 …08/13/64 II (8-7) WR 0 104 SV (first Titan Ill) 09/01/64…
  • p. 166 D.4.2 Titan Failure Narratives The following narratives provide available details about each Titan failure…
  • p. 168 …Stage II engine shut down prematurely due to oxidizer bootstrap-line failure. 76. Titan I (Mares…
  • p. 169 …Titan II (Thread Needle), 20 June 63, Response Mode 5, Flight Phase 2: Flight appeared normal…
  • p. 170 …Titan II (Bold Guy), 21 Sep 65, Response Mode 4, Flight Phase 2: After a normal…
  • p. 172 …Following a successful Titan-II second-stage burn and after payload separation, the apogee- kick motor…
The best-fit values of B and A shown in Figure 27 and Figure 28 are tabulated for
convenient reference in-Table 24. For breakup qa's of 10,000 and 5,000 deg-lb/ft2, the
currently-used value of B = 1,000 provided a better data fit than other values of B that
were investigated.
Table 24. Shaping Constants for Titan IV
TB
(sec) Breakupqa
(deg-lb/ft2) B A II
300 none
20,000
10,000
5,000
1,000 2.00
2.95
3.25
3.50
300 none
20,000
10,000
5,000
10,000
2,000
1,000
1,000
2.70
3.15
3.25
3.50
Risk calculations in the launch area were not made for Titan IV.
9/10/96 68 RTI

Not linked to a story yet.

About this file

Report, from the pursue collection. The PDF is mirrored here; the original link is above. 181 pages are in the text index: search them above, or from the library's search.