User talk:Audin/rocket family tree

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Engines[edit]

  • Navaho Early
    • Redstone
  • Navaho Late G-38
    • Atlas
    • Jupiter
    • Thor
  • Navaho -> everything?
    • However, the various Jupiter/Thor/Atlas/SaturnI(B)/Delta engines are all recognizable as direct descendants of the Navaho booster engines.
    • You don't really get into "derived technology" until you get to the F-1, which is recognizably from the same heritage but is much larger.

>Thanks to all who helped clear this up. Did the engine developed >for Navaho go directly into the Jupiter missile, or was it a more >general case of derived technology?

The latter. The development path is roughly: 

XLR-83 Navaho G26 120,000 lbst lox/alcohol
LR83   Navaho G38 135,000 lbst lox/kerosene 
LR79   Thor/Jupiter 150,000 lbst lox/kerosene
LR89   Atlas booster 150,000 lbst lox/kerosene
H-1    Saturn I 205,000 lbst lox/kerosene
RS27   Delta 2000 205,000 lbst lox/kerosene
RS27A  Delta 7000 245,000 lbst lox/kerosene

> I'm reading two different stories of the origin of the Rocketdyne A-6 engine > used in the Redstone. One is that it was based on the Hermes program, the > other that it came from the Navajo program. Does anyone have an authoritative > reference on this? >

According to my sources, the story goes something like this: Under project Hermes, the U.S.develops the German V-2 engine technology-G.E. develops an Americanized version for the Army. The V-2 motor gets souped up, and simplified, by North American to become the engine for the Navaho1 booster (cluster of three). Under project REAP (Rocket Engine Advancement Program) the fuel choice is switched from Alcohol/LOX to Kerosene/LOX in the January,1953-June,1954 time period.The now superseded Navaho booster motor gets used on the Redstone missile. (Redstone is the final outcome of the many, and varied, proposals under the Hermes project name.) So the Redstone engine is directly related to the Navaho 1 booster motor.

Families[edit]

  • redstone -> Australian WRESAT
  • redstone -> Juno 1/Jupiter-C
  • redstone -> Mercury Redstone
  • Jupiter -> Juno 2, Juno X
  • Scout
  • Thor -> Thor Agena
  • Thor -> Delta
  • Thor -> Thor Burner 2
  • Thor -> Thor LV 2F
  • Thor -> commercial Delta 2
  • Atlas -> Atlas Centaur
  • Atlas -> Atlas Able
  • Atlas -> Atlas Agena
  • Atlas -> Atlas Burner 2
  • Atlas -> Mercury Atlas D
  • Atlas -> reconditioned Atlas E and F ICBMs with or without upper stages
  • Atlas -> commercial Atlas 1 and 2, an Atlas Centaur derivative
  • Titan -> Gemini Titan II
  • Titan -> Titan 3A
  • Titan -> 3B Agena D
  • Titan -> 3C
  • Titan -> 3D
  • Titan -> 3E Centaur
  • Titan -> 34B
  • Titan -> 34D
  • Titan -> Titan II SLV
  • Titan -> Titan IV
  • Titan -> commercial Titan III, a 34D derivative
  • Saturn -> I
  • Saturn -> ib
  • Saturn -> v
  • redstone -> Australian WRESAT
  • redstone + 3 solid upper stages -> Jupiter-C
    • named such by von braun as the 'jupiter' name helpd get more funding
  • Jupiter-C with 4th stage -> Juno 1
  • Jupiter + solid upper stages -> Juno XXX
  • Jupiter with same upper stages as Jupiter C/Juno 1 -> Juno 2
  • Atlas
    • modest orbital launcher on its own
    • Mercury orbital missions
    • score
    • Upper stages: agena or centaur or able or Burner 2
      • last atlas-agena launch '1977/78 for the final Rhyolite launches'
    • steadily lengthing tanks
  • Titan
  • Titan II
    • ICBM
    • Gemini
    • Refurbished Titan II -> Titan II SLV. Many NOAA missions on IIslv
  • Titan III
    • upper stages: Agena, centaur
    • last titan-agena: 1987

>Titan III is a Titan II with two great big solid strap-ons. There were >a number of different versions, notably IIIC (general heavy-load USAF >booster), IIIM (meant to launch the cancelled MOL military space station), >34D (slightly upgraded IIIC)... Add IIIA, a IIIC with no boosters, used for the first four tests. Also IIID, a IIIC with no Transtage & with radio guidance used for Big Bird & KH11. Titan Centaur was Titan IIIE. The 34D in its East coast version replaced the IIIC and could be fitted with the IUS as well as the Transtage though this was apparently only done once, in 1982, for a DSCS launch. The West coast version replaced the Titan IIID.

  • Thor
    • Atlas engines
    • small upper stages -> Thor Agena, Burner 2, etc.
    • Strap on boosters
    • turned into Thor Delta which turned into Delta
  • Delta + new hydrogen upper stage -> Japanese H-1.


from: http://yarchive.net/space/launchers/us_launcher_summary.html http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&safe=off&threadm=1989Nov15.213427.7522%40utzoo.uucp&rnum=1&prev=/groups%3Fas_usubject%3Dlauncher%2Blooking%2Bfamily%26as_drrb%3Db%26as_mind%3D15%26as_minm%3D11%26as_miny%3D1989%26as_maxd%3D15%26as_maxm%3D11%26as_maxy%3D1989

suggested: Missiles and Rockets by Kenneth Gatland (Blandford Press UK, 1976 (?)). The Rocket by David Baker (Crown US, 1979 (?))

Also see Andrew Wilson's historical articles in old issues of "Spaceflight"; and old editions of Jane's All The World's Aircraft (which used to cover space).

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