Delta rocket

Delta Rocket. A launch vehicle or booster or booster system consisting of one to three stages. Depending upon the thrust desired, the fuel may be LOX (liquid oxygen explosives or oxyliquits)... 

The SIRTF is a 85-cm diameter telescope (Fig. 11) that will be cooled to 5.5 K and specialize in mid- and far infrared observations. Scheduled to be launched on a Delta rocket in December of 2001, SIRTF will provide an excellent follow-up on the ISO observations and offer unique areas of science of its own. At this time SIRTF is expected to provide a significant increase in sensitivity and field of view over ISO, primarily due to an improved detector complement. The SIRTF orbit is a unique earth-trailing heliocentric orbit that will place the spacecraft at a considerable distance from Earth. This will facilitate the cooling of the telescope, which will be launched warm and then cooled once the proper orbital position is achieved. SIRTF contains three focal plane instruments described below. 

UDMH is neither shock- nor heat-sensitive, and it is a stable liquid even at high temperature. A key advantage is its low freezing point (-71°F). Furthermore, it is compatible with nickel, Monel, and stainless steel. UDMH is often used as rocket propellant mixed with hydrazine in various proportions. A 50/50 mixture with hydrazine, Aerozine-50, is used for the current Delta II Stage 2. Anecdotally, the Titan IV vehicle fly-out (last flight) occurred in October 2005 with vehicle B-26, a black mission with a satellite for the National Reconnaissance office (NRO) engines. 

Out of the bipropellant mixtures shown in Table 2.7, only a few are used in practial applications. In particular, L0X/H2 has proven useful in the cryogenic main engines of the civil Space Shuttle and Ariane V. The Aestus upper stage of the Ariane V relies on using NTO/MMH. The engines of the Delta (RS-27) and Atlas rockets... 

Delta-ll rocket—launch vehicle commonly used by NASA and the military to put satellites and probes into space. 

At the same time, Hercules was forced to cut back on another of its major product lines, those of its aerospace products group. During the 1980s it had been a principal contractor for the Defense Department s rocket motor systems. The group s products came to include those for the Trident If and SCAM missiles, and the Trident IV and Delta 11 Space Launch Programs. In 1989 Hercules had to post a 96 million loss for taking 327 million overcharges on these products. Then the explosion of the Trident IV in 1991 led to further losses. Finally, in 1995, Hercules sold off its aerospace business. ... 

The prime contractor is Raytheon Co, and it is powered by the Hercules Mark 58 Mod 0 solid proplnt rocket motor. The airframe is a slim cylindrical body with a pointed ogive nose. Pivoted cruciform delta wings are mid-way along the body, indexed in line with cruciform delta tail fins. Guidance is a Raytheon semi-active Doppler radar homing system, with control by movable wings... 

Challenger spacecraft destroyed these plans. After appropriate modifications it was finally transported into space by the DELTA-II rocket. 

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