A good illustration of a Mode-5 failure response occurred during launch of Prospector (Joust) on the Eastern Range in-June 1991. The Joust consists of a single-stage Castor IV-A solid-propellant rocket motor and a payload module. The "vehicle made a radical pitch-up maneuver due to· aft-skirt structural failure at approximately T+14 Seconds." 121 The vacuum instantaneous impact trace from the RSO console is shown in Figure 1. If the safety officer had taken destruct action during the time interval from 18 to 25 seconds, impact would have been well away from the flight line. CYIER A UNCLRSSIFIED IP "AP 1 JOUST1761-R r20SEC. + 3 □ .a + 3 □.□ RLTEP. .. PP.rttE I. 17B CNH!AVE53 SKIN ON TRRCK ... . . . ..... ..._._:,.--25SEC. ON TRACK 1. D DELAY ~• 1 .II DELAY ',• r1BSEC. .::---,--- +· 12 CHEV .. \"·./ t • . ~ - • • • •30SEC. • 15 CHEV ■ 19.7 5LO \ '\ • .... . . . . . . ~-. 16.3 !iLO 32.2 SltT !II .1 5HT a. 1 RGT 15SEC. Q.7 LFT ~-2 LOIi ~ 1 LOU \ \ 78 HDG 625 VEL 2 ALT l ! ....... -- .. D. I 1l . --/ . --, ·- --•-=--.-,,,•' CNTRAVE'i! SKIN . i ·; I ON TRRU 0 5 DELAY I 0 . I ' ON TRACK 0.5 DELAY I f i i + 4 GREEN Figure 1. Joust Impact Trace Showing a Mode-5 Failure Response As still another example of a Mode-5 failure response, a guided Red Tigress sounding rocket was launched from Pad 20 at Cape Canaveral on 20 Aug 91. Within a second or two after clearing the launcher, the rocket made a near 90° right tum, and flew stably in this direction until destroyed by the safety officer at 23.3 seconds. Pieces impacted some two or three miles from the launch pad. This failure might have been classified as a Mode-2 response if destruct action had been taken·shortly after launch. 9/10/96 6 RTI
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Vision Description (EN)
This is a technical body page containing dense prose discussion of Mode-5 impact-density functions in missile/rocket failure analysis. The page includes one mathematical equation labeled (2) near the top, displaying R(d) = (π/6) × ρ × (d²/4). The text discusses impact mechanics, targeting systems, spatial distribution of debris, and failure response characteristics. The page is dated 9/10/96 with page number 8 and RTI footer marking. No redactions or classification markings are visible. The OCR reference material describes a launch failure of a Prospector (Joust) vehicle at the Eastern Range in June 1991 and a Red Tigress sounding rocket from Cape Canaveral on 20 August 1991, both illustrating Mode-5 failure responses, though the specific impact trace diagram (Figure 1) is not visible on this page segment.
Descrição Vision (PT-BR)
Esta é uma página de corpo técnico contendo uma discussão densa sobre funções de densidade de impacto do Modo-5 na análise de falhas de mísseis/foguetes. A página inclui uma equação matemática rotulada como (2) próxima ao topo, exibindo R(d) = (π/6) × ρ × (d²/4). O texto discute mecânica de impacto, sistemas de direcionamento, distribuição espacial de detritos e características de resposta de falha. A página é datada de 9/10/96 com número de página 8 e marcação de rodapé RTI. Nenhuma redação ou marcações de classificação são visíveis. O material de referência OCR descreve uma falha de lançamento do veículo Prospector (Joust) no Intervalo Leste em junho de 1991 e um foguete sondador Red Tigress de Cabo Canaveral em 20 de agosto de 1991, ambos ilustrando respostas de falha do Modo-5, embora o diagrama de traço de impacto específico (Figura 1) não seja visível neste segmento de página.