This article is about the rocket. For the submarine, see Delta III-class submarine.
Delta III
A Delta III rocket diagram
Function
Orbital launch vehicle
Manufacturer
Boeing (design, manufacturing and assembly) Mitsubishi Heavy Industries (extended kerosene tank and H-IIA-based upper stage manufacturing) NASDA (H-IIA/DCSS upper stage design) Contraves (Ariane 4-derived fairing and payload adapters)
Country of origin
United States
Size
Height
35 m (115 ft)
Diameter
4 m (13 ft)
Mass
301,450 kg (664,580 lb)
Stages
2
Capacity
Payload to LEO
Mass
8,290 kg (18,280 lb)[1]
Payload to GTO
Mass
3,810 kg (8,400 lb)[1]
Associated rockets
Family
Delta
Launch history
Status
Retired
Launch sites
SLC-17B, Cape Canaveral
Total launches
3
Success(es)
0
Failure(s)
2
Partial failure(s)
1
First flight
August 26, 1998
Last flight
August 23, 2000
Boosters
No. boosters
9 GEM 46
Maximum thrust
628.3 kN (141,200 lbf)
Specific impulse
273 seconds (2.68 km/s)
Burn time
75 seconds
Propellant
HTPB bound APCP
First stage
Powered by
1 Rocketdyne RS-27A
Maximum thrust
1,085.79 kN (244,100 lbf)
Specific impulse
254 seconds (2.49 km/s)
Burn time
260 seconds[2]
Propellant
LOX/RP-1
Second stage
Powered by
1 Pratt & Whitney RL10B
Maximum thrust
110.03 kN (24,740 lbf)
Specific impulse
462 seconds (4.53 km/s)[3]
Burn time
700 seconds[2]
Propellant
LOX/LH2
Third stage (Optional)
Powered by
1 Thiokol Star 48B
Maximum thrust
66.723 kN (15,000 lbf)
Specific impulse
286 seconds (2.80 km/s)
Burn time
87 seconds
Propellant
HTPB
[edit on Wikidata]
Delta III was an expendable launch vehicle made by McDonnell Douglas (later acquired by Boeing). Development was cancelled before the vehicle became operational. The vehicle was being developed from the highly-successful Delta II to help meet the launch demand of larger satellites. The first Delta III launch was on August 26, 1998.[4] Of its three flights, the first two were failures, and the third, though declared successful, reached the low end of its targeted orbit range and carried only a dummy (inert) payload. The Delta III could deliver up to 3,810 kg (8,400 lb) to geostationary transfer orbit, twice the payload of its predecessor, the Delta II.[1] Under the four-digit designation system from earlier Delta rockets, the Delta III is classified as the Delta 8930.
^ abc"Delta III Launch Vehicle". 2001. Archived from the original on November 14, 2001.
^ ab"Delta III Payload Planner's Guide" (PDF). Archived from the original (PDF) on 19 November 2001.
^"Delta III Data Sheet". Space Launch Report. Retrieved 26 July 2014.
^"Delta III Takes a Dip". Wired. Retrieved 2018-10-24.
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