(And if the answer is "nobody knows or cares" that's useful too. I just want to make sure I'm not making some kind of graphical faux pas here.)
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Question for the missile experts. For the Polaris A1 missile — would the RV have had the little guidance part or just the RV in its final descent? Trying to make a diagram but finding not much information on this front.pic.twitter.com/XBxRV6uyXL
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This image seems to exaggerate the size a bit but gets at the issue. Is the guidance system part of final descent or does it jettison with the second stage?pic.twitter.com/nRVsHVn3B8
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(I am leaning towards the guidance breaking off with Stage 2, for both turbulence and weight reasons.)
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What model RV was equipped? I forget?
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AFAIK Mk 1 RV had no active guidance; the shape of the RV is designed to be passively stable.
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There was not post-boost guidance for Polaris A1. BTW, the oval shown on your drawing, in the guidance section is one of six thrust-termination ports for second stage.
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Polaris A3 did not use thrust termination; it carried three RVs, though not independently targeted. The 'bus' also carried pen-aids and chaff, so it may have had some minimal 'guidance' capability. See Graham Spinardi's excellent book" "From Polaris to Trident" for some details.
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@EllemanIISS’s comments are an excellent example of how even basic missiles can defeat elaborate missile defenses. You don’t need hyper glide or hypersonic or “nuclear-powered” cruise missiles. Look at what we were doing with Polaris.
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This is the patent application for the Polaris guidance system, which seems to indicate that the guidance module would separate in the final flight stage. https://patents.google.com/patent/US4470562A/en …pic.twitter.com/vilK9pK6xH
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Does the patent still count if they misspelled “inertial” or has it actually just been “inertail” all along?
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I don't have any proofs, but believe that it must be just the RV. I think that the way RVs are located in A3 version may be a reference.pic.twitter.com/UCMvPmA2G3
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The people who actually know prob. can’t say due to classification issues &/or ITAR, but as a tech history/space history guy & aerospace engineer, I believe it likely the RV separated from the guidance unit for stability and thermal reasons.
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I'm a missile, say, enthusiast but not an expert in any academic sense. my understanding is the polaris rv is unguided. the guidance section functions all the way up to rv separation, when the warhead begins its ballistic descent
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Knowledgeable about Polaris... The guidance and control section seperated with the 2nd stage. This diagram undersizes that compartment, but does get across the central idea of a flare on the base of the RV.
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