Re: Famous Saturn V footage



MondoMor wrote:

neil.fraser@xxxxxxxxx wrote:

The interstage is ablaze in this footage because the S-II actually
ignites its engines shortly after interstage separation.


The five J-2s of the S-II stage are burning well before interstage separation; they ignite right after the first stage separates.

Since the
S-II used LOX/LH as propellants, the "flame" is invisible, but fully
capable of BBQing the falling interstage. Is this correct?



Yup.

Pat
.

Relevant Pages

  • Re: NASA PDF - Crew Launch Vehicle - CLV (Stick)
    ... It would be kind of foolish, wouldn't it, to adapt a method that requires two clean separation events to drop the interstage from the upper stage? ... Why not sep the upper stage from the interstage first, the way every other rocket in the world does it, *then* separate the interstage from the first stage as it falls away? ... Is it to reduce weight for the recovery parachutes or to prevent them getting fouled on the truss? ...
    (sci.space.history)
  • Re: NASA PDF - Crew Launch Vehicle - CLV (Stick)
    ... >> interstage separation is illustrated. ... Why not sep the upper stage from ... > settling motors are located on the interstage, ...
    (sci.space.history)
  • Re: NASA PDF - Crew Launch Vehicle - CLV (Stick)
    ... > interstage separation is illustrated. ... Why not sep the upper stage from ... settling motors are located on the interstage, ...
    (sci.space.history)
  • Re: NASA PDF - Crew Launch Vehicle - CLV (Stick)
    ... >Right, it is ullage motors on the interstage, not sep motors. ... upper stage and just jettison them after their burn. ... do a dual-plane separation is that you're scared of banging the engine ...
    (sci.space.history)
Loading