Article

2006-07-06 China-Japan-Koreas

Build-up to the Taepo-dong-2C/3 Satellite Launch Attempt

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Posted by ed 2006-07-06 08:15|| || Front Page|| [4 views since 2007-05-07] Top

#1 The third missile launch, which occured at 4:01 PM, was either a Taepo-dong-2A or 2B and or 2C/3 configuration that failed between 30 and 60 seconds of launch according to initial reports. Indications are that the telemetry was lost between 50-52 seconds perhaps due to its break-up or possibly sea impact. According to DoD, sources and White House National Security Adviser Stephen Hadley, based on telemetry, it failed between 35-40-42 seconds into the launch over the Musudan-ri (No-dong-A/Taepo-dong-2) launch infrastructure since it only for burned 42 seconds. . . . This launch failure is indicative of a characteristic maxQ maximum dynamic pressure failure mid-air tilting over folding break-up taking several seconds of in flight catastrophic disassembly. Speculating a little further, it would appear to be a possible propulsion clustering and or Vernier steering control authority, guidance loss of control failure by the first stage which should have burned between 112-120-130 seconds depending on which configuration was launched as the final design.

A part of me is in geek heaven reading stuff like that!

I wonder if it wasn't an airframe failure because the structure wasn't strong enough to take the aerodynamic stress at Max-Q. That open truss interstage looks awfully flimsy in the diagram.

Posted by Mike 2006-07-06 15:21|| 2006-07-06 15:21|| Front Page Top

#2 He confirms the speculation here about the propellants and the cluster induced vibration...

it would appear to be a possible propulsion clustering
and
are evenly divided between highly toxic, corrosive, hypergolic UDMH (Unsymmetrical Dimethylhydrazine) and IRFNA (Inhibited Red Fuming Nitric Acid) propellants

Posted by john 2006-07-06 19:52|| 2006-07-06 19:52|| Front Page Top

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