N2O4/Aerozine50 propellant rocket stage. Loaded/empty mass 6,954/950 kg. Thrust 43.63 kN. Vacuum specific impulse 319 seconds.
Cost $ : 4.350 million.
Status: Active.
Gross mass: 6,954 kg (15,330 lb).
Unfuelled mass: 950 kg (2,090 lb).
Height: 5.89 m (19.32 ft).
Diameter: 1.70 m (5.50 ft).
Span: 2.40 m (7.80 ft).
Thrust: 43.63 kN (9,808 lbf).
Specific impulse: 319 s.
Burn time: 431 s.
Number: 254 .
More...  Chronology...
Associated Countries
Associated Engines

AJ10118K Aerojet N2O4/Aerozine50 rocket engine. 43.4 kN. Isp=321s. Pressurefed engine, optimized for altitude operation, used in Delta K stage from 1989. Not regeneratively cooled; used a rubber modified silica phenolic ablative at the combustion flame front. More...
Associated Launch Vehicles

Delta 3920 American orbital launch vehicle. Three stage vehicle consisting of 9 x Castor 4A + 1 x ELT Thor/RS27 + 1 x Delta K More...

Delta 3920/PAM American orbital launch vehicle. Four stage vehicle consisting of 9 x Castor 4A + 1 x ELT Thor/RS27 + 1 x Delta K + 1 x Star 48B More...

Delta 3924 American orbital launch vehicle. Four stage vehicle consisting of 9 x Castor 4A + 1 x ELT Thor/RS27 + 1 x Delta K + 1 x Star 37E More...

Delta 4000 American orbital launch vehicle. The Delta 4000 series used more powerful Castor 4A strapons, but the old Extended Long Tank core with MB3 engine. Only two of these were launched. More...

Delta 5000 American orbital launch vehicle. The Delta 5000 series used the more powerful Castor 4A strapons but with the Extended Long Tank core with RS27 engine. Only one was launched. More...

Delta 6925 American orbital launch vehicle. Four stage vehicle consisting of 9 x Castor 4A + 1 x EELT Thor/RS27+ 1 x Delta K + 1 x Star 48B More...

Delta 39208 American orbital launch vehicle. Three stage vehicle consisting of 9 x Castor 4A + 1 x ELT Thor/RS27 + 1 x Delta K More...

Delta 49258 American orbital launch vehicle. Four stage vehicle consisting of 9 x Castor 4A + 1 x ELT Thor /MB3 + 1 x Delta K + 1 x Star 48B with 2.4 m (8 foot) diameter fairing) More...

Delta 59208 American orbital launch vehicle. Three stage vehicle consisting of 9 x Castor 4A + 1 x ELT Thor/RS27 + 1 x Delta K with 2.4 m (8 foot) diameter fairing) More...

Delta 69208 American orbital launch vehicle. Three stage vehicle consisting of 9 x Castor 4A + 1 x EELT Thor/RS27+ 1 x Delta K with 2.4 m (8 foot) diameter fairing) More...

Delta 69258 American orbital launch vehicle. Four stage vehicle consisting of 9 x Castor 4A + 1 x EELT Thor/RS27+ 1 x Delta K + 1 x Star 48B with 2.4 m (8 foot) diameter fairing) More...

Delta 6920X Three stage vehicle consisting of 9 x Castor 4A + 1 x EELT Thor/RS27+ 1 x Delta K with 3.05 m (10 foot) diameter fairing More...

Delta 7925 American orbital launch vehicle. Four stage vehicle consisting of 9 x GEM40 + 1 x EELT Thor/RS27A + 1 x Delta K + 1 x Star 48B More...

Delta 79258 American orbital launch vehicle. Four stage vehicle consisting of 9 x GEM40 + 1 x EELT Thor/RS27A + 1 x Delta K + 1 x Star 48B with 2.4 m (8 foot) diameter fairing) More...

Delta 792510 American orbital launch vehicle. Four stage vehicle consisting of 9 x GEM40 + 1 x EELT Thor/RS27A + 1 x Delta K + 1 x Star 48B with 3.05 m (10 foot) diameter fairing More...

Delta 7920X Three stage vehicle consisting of 9 x GEM40 + 1 x EELT Thor/RS27A + 1 x Delta K with 3.05 m (10 foot) diameter fairing More...

Delta 7920X Three stage vehicle consisting of 9 x GEM40 + 1 x EELT Thor/RS27A + 1 x Delta K with 3.05 m (10 foot) diameter fairing More...

Delta 7920XC Three stage vehicle consisting of 9 x GEM40 + 1 x EELT Thor/RS27A + 1 x Delta K with 3.05 m (10 foot) diameter composite fairing More...

Delta 79208 American orbital launch vehicle. Three stage vehicle consisting of 9 x GEM40 + 1 x EELT Thor/RS27A + 1 x Delta K with 2.4 m (8 foot) diameter fairing) More...

Delta 79259.5 American orbital launch vehicle. Four stage vehicle consisting of 9 x GEM40 + 1 x EELT Thor/RS27A + 1 x Delta K + 1 x Star 48B with 2.9 m (9.5 foot) diameter fairing) More...

Delta 7420XC Three stage vehicle consisting of 4 x GEM40 + 1 x EELT Thor/RS27A + 1 x Delta K with 3.05 m (10 foot) diameter composite fairing More...

Delta 73269.5 American orbital launch vehicle. Four stage vehicle consisting of 3 x GEM40 + 1 x EELT Thor/RS27A + 1 x Delta K + 1 x Star 37FM with 2.9 m (9.5 foot) diameter fairing) More...

Delta 74259.5 American orbital launch vehicle. Four stage vehicle consisting of 4 x GEM40 + 1 x EELT Thor/RS27A + 1 x Delta K + 1 x Star 48B with 2.9 m (9.5 foot) diameter fairing) More...

Delta 74269.5 American orbital launch vehicle. Four stage vehicle consisting of 4 x GEM40 + 1 x EELT Thor/RS27A + 1 x Delta K + 1 x Star 37FM with 2.9 m (9.5 foot) diameter fairing) More...

Delta 732010 American orbital launch vehicle. Three stage vehicle consisting of 3 x GEM40 + 1 x EELT Thor/RS27A + 1 x Delta K More...

Delta 742510 American orbital launch vehicle. Four stage vehicle consisting of 4 x GEM40 + 1 x EELT Thor/RS27A + 1 x Delta K + 1 x Star 48B with 3.05 m (10 foot) diameter fairing More...

Delta 792010L American orbital launch vehicle. Three stage vehicle consisting of 9 x GEM40 + 1 x EELT Thor/RS27A + 1 x Delta K with 3.05 m (10 foot) diameter long fairing More...

Delta 7920H American orbital launch vehicle. Version of Delta 7000 using much larger GEM 46 solid rocket motors originally developed for the Delta 3. More...

Delta 7925H American orbital launch vehicle. Four stage vehicle consisting of 9 x GEM46 + 1 x EELT Thor/RS27A + 1 x Delta K + 1 x Star 48B More...

Delta IV Small American orbital launch vehicle. Light launch vehicle using the Delta4 core with the traditional Delta K and PAMD upper stages. 2 m diameter payload fairing. Not flown as of 2008 but cancellation of the Delta II could lead to its eventual use. More...
Associated Propellants

N2O4/Aerozine50 Nitrogen tetroxide became the storable liquid propellant of choice from the late 1950's. Aerozine was a 5050 mixture of hydrazine and UDMH developed for use in the Titan 2 missile. Copied in one Russian missile but otherwise straight UDMH used more commonly. Higher boiling point than UDMH. More...
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