Juno II

Juno II
Juno II on pad
FunctionExpendable launch system
ManufacturerChrysler for ABMA
Country of originUnited States
Cost per launchUS$2.9 million (1958),
US$31.5 million (2024)
Size
Height24.0 m (78.7 ft)
Diameter2.67 m (8 ft 9 in)
Mass55,110 kg (121,500 lb)
Stages3-4
Capacity
Payload to Low Earth orbit
Mass41 kg (90 lb)
Payload to Sub-orbital TLI
Mass6 kg (13 lb)
Associated rockets
FamilyJupiter
Launch history
StatusRetired
Launch sitesLC-5 and LC-26B, CCAFS
Total launches10
Success(es)4
Failure(s)5
Partial failure(s)1
First flight6 December 1958
Last flight24 May 1961
First stage - Jupiter
Engines1x Rocketdyne S-3D
Thrust667 kN (150,000 lbf)
Specific impulse248 seconds
Burn time182 seconds
PropellantRP-1 / LOX
Second stage MGM-29 Sergeant
Engines11 Solid
Thrust74.8 kN (16,800 lbf)
Specific impulse220 seconds
Burn time6 seconds
PropellantSolid - Polysulfide-aluminum and ammonium perchlorate
Third stage - MGM-29 Sergeant
Engines3 Solid
Thrust20.4 kN (4,600 lbf)
Specific impulse236 seconds
Burn time6 seconds
PropellantSolid - Polysulfide-aluminum and ammonium perchlorate
Fourth stage - MGM-29 Sergeant
Engines1 Solid
Thrust6.8 kN (1,500 lbf)
Specific impulse249 seconds
Burn time6 seconds
PropellantSolid - Polysulfide-aluminum and ammonium perchlorate

Juno II was an American space launch vehicle used during the late 1950s and early 1960s. It was derived from the Jupiter missile, which was used as the first stage.[1][2][3][4][5][6][7][8]

  1. ^ "Juno II". www.astronautix.com. Retrieved 29 November 2023.
  2. ^ "Juno-2 (4 Stage)". Gunter's Space Page. Retrieved 29 November 2023.
  3. ^ "Jupiter". www.astronautix.com. Retrieved 29 November 2023.
  4. ^ "Juno II". airandspace.si.edu. 9 June 2016. Retrieved 29 November 2023.
  5. ^ "JUNO II FACT SHEET | Spaceline". Retrieved 29 November 2023.
  6. ^ "Juno-2". Gunter's Space Page. Retrieved 29 November 2023.
  7. ^ Juno II Summary Project Report. National Aeronautics and Space Administration. 1962.
  8. ^ Bland, William M. (1964). The History of Rocket Technology: Essays on Research, Development, and Utility. Wayne State University Press. ISBN 978-0-598-26829-7.