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	Delta - Wikipedia, the free encyclopedia
		In mathematical finance delta, δ, is one of "The Greeks"; delta measures the sensitivity of the value of a derivative to changes in the price of its underlying instrument.
		In particle physics, the delta particle is a short lived resonance of the proton.
		In information technology, delta compression is a process that produces a file recording only the changes (or diff) between versions.
	en.wikipedia.org /wiki/Delta (317 words)

	Cape Canaveral Rocket and Missile Programs:
		Delta 900 Series rockets were never launched from Cape Canaveral, but the vehicle did introduce enhancements which proved to be significant in Delta rocket evolution.
		Although Delta 900 Series rockets were never launched from Cape Canaveral, the introduction of the vehicle marked an important step in the evolution of the Delta program, and a vital link to the Delta rockets which followed.
		While previous Delta rockets were tapered at the top, the Delta 1000 Series vehicles extended the 8-foot first stage diameter all the way to the top, with the exception of the rounded conical tip of the payload fairing.
	www.spaceline.org /rocketsum/delta-1000.html (437 words)

	Boeing Delta Rockets to Launch Next-Generation NASA Spacecraft
		Delta II rockets have placed into orbit a wide variety of astronomical observatories, space physics satellites, and planetary spacecraft.
		NASA has awarded a contract to Boeing for its family of Delta rockets to launch the next generation of scientific and technology development payloads into orbit or into deep space.
		Delta III, featuring a larger fairing to house bigger payloads and a new cryogenically propelled upper stage, uses existing components and infrastructure similar to that used with the Delta II launch vehicle, but can boost twice the payload into orbit.
	www.spacedaily.com /news/launchers-00f.html (493 words)

	Delta rocket - Wikipedia, the free encyclopedia
		After the various changes and improvements to the Delta rockets, it became clear that the letter-naming system was not going to be adequate.
		The latter caused the Delta to be known as a Delta E1.
		Delta IVs are produced in a new facility in Decatur, Alabama.
	en.wikipedia.org /wiki/Delta_rocket (1431 words)

	Why is the US developing the Delta rockets when the Saturn 5 is so much better? (Site not responding. Last check: 2007-11-07)
		The Delta rockets are Americas attempt to catch up with the Chinese, French and Russians in the satellite launching business.
		The Delta's come in four major varieties, the early Delta's (developed from the Thor ballistic missile), the Delta 2's, the Delta 3 and the Delta 4's.
		Why did the US develop and use the Delta's and Delta 2's (for decades) instead of using the good old Saturn 5 which can lift 22 times (I repeat; twenty-two times) the payload of the biggest Delta 2.
	guardian.150m.com /other/delta.htm (457 words)

	Delta II Launch Vehicle
		Delta II comprises a group of expendable rockets that can be configured as two- or three-stage vehicles and with three, four or nine strap-on graphite epoxy motors (GEMs) depending on mission needs.
		Delta II payload delivery options range from about 891 to 2,142 kg (1,965 to 4,723 lb) to geosynchronous transfer orbit (GTO) and 2.7 to 6.0 metric tons (5,934 to 13,281 lb) to low-Earth orbit (LEO).
		Two-stage Delta II rockets typically fly LEO missions, while three-stage Delta II vehicles generally deliver payloads to GTO or are used for deep-space explorations such as NASA's missions to Mars, a comet or near-Earth asteroids.
	www.boeing.com /defense-space/space/delta/delta2/delta2.htm (315 words)

	Mars Exploration Rover Mission: The Mission
		The Boeing Delta II launch vehicle was selected for the Mars Exploration Rover mission because it has the right liftoff capability for the weight requirements and because it's extremely reliable.
		The Delta II family of launch vehicles has been in service for over 10 years and has successfully launched 90 projects including the last five NASA missions to Mars: Mars Global Surveyor and Mars Pathfinder in 1996, Mars Climate Orbiter in 1998, Mars Polar Lander in 1999, and Mars Odyssey in 2001.
		The major elements of the Delta Rockets for the MER missions, however, are nearly identical.
	marsrovers.nasa.gov /mission/launch_vehicle.html (342 words)

	SPACE.com -- Fixes Planned for Boeing's Delta 4 Rocket Family
		Rocket designers never caught the potential for such a problem in the Delta 4's first stage until after the Heavy's demonstration launch that suffered early extinctions of its three main engines during ascent.
		The shortened firings resulted in the rocket failing to achieve the proper altitude to deploy a pair of student-built nanosat experiments and a massive satellite mockup.
		The earlier Delta 4 flights permitted the pressure to drop during the rocket's ascent.
	www.space.com /missionlaunches/sfn_delta4_fixes_050411.html (1438 words)

	Spaceflight Now \| Delta Launch Report \| Delta 4 fleet goes from 'Medium' to 'Heavy'
		Delta rockets have been flying for more than 40 years, but the new Delta 4 dwarfs its predecessors in sheer size and Earth-shaking power to launch much larger cargos than possible in the past.
		Development of Delta 4 began in the mid-1990s, giving the Delta team the chance to create a fleet of heavy-lift rockets that would fly through at least 2020, lofting commercial, military and civilian spacecraft.
		For the Delta 4 Medium and Medium+ 4,2 rockets, an interstage adapter that tapers from the five-meter first stage to the four-meter upper stage is used to join the two stages of the rocket.
	www.spaceflightnow.com /delta/delta4/021112delta4 (2195 words)

	SPACE.com -- 'Rocket Ship' Shoves Off to Carry New Delta 4's to Launch Sites
		WASHINGTON A futuristic "rocket ship" the length of a football field was launched from the banks of the Pascagoula River in Mississippi on Thursday morning as a ferry vessel for a new class of big boosters.
		With a maiden launch of the rocket on track for April 2001 from the Cape, program managers were relieved to get a reliable ferry system going for the rockets before years end.
		The rocket is a follow-up to the Delta 3, which flew twice, in August 1998 and May 1999.
	www.space.com /news/rocket_boat_991216.html (674 words)

	Spacecraft Paper Models - FLYING DELTA 7 ROCKETS
		The remaining 2/3rds becomes the motor mount for the 1/4 A10-3 motors I use to launch the rocket.
		The swivel is not necessary, you can tie the center of the loops directly to the shock cord, this just helps stabilize during decent and protect the fins on landing.
		I use masking tape on the rod to hold the rocket 3 to 4 inches above the pad heat shield.
	www.delta7studios.com /flying_delta_7_rockets.htm (1220 words)

	Delta
		NASA contracted with the Air Force for the use of the Thor booster, while the Delta second stage vehicle was produced directly for NASA by McDonnell Douglas, which was awarded the initial contract for the vehicle in April of 1959.
		This design was upgraded in two phases to provide Delta II performance capabilities: Delta II 6925, with a 14% increase in geosynchronous transfer orbit (GTO) capability, and Delta II 7925, with a further 26% increase.
		Initial improvements incorporated into the Delta II 6925 vehicle included a 9.5-ft (2.9 m) fairing to accommodate larger spacecraft, a 12-ft (3.66 m) extension in the first-stage tanks for added propellant capacity, and the use of higher performance solid rocket boosters - the Morton Thiokol Castor IVAs.
	www.fas.org /spp/military/program/launch/delta.htm (2988 words)

	Space Today Online - Russian space rockets - Proton 300th flight milestone
		The Delta 2 launch is expected August 23 with the Delta 4 on August 28.
		Delta ferried early weather, communications and science satellites to orbit.
		Delta production actually stopped for a time in the early 1980s as NASA intended to use the space shuttle fleet to carry all satellites to orbit.
	www.spacetoday.org /Rockets/Delta/Delta300.html (380 words)

	Cape Canaveral Rocket and Missile Programs: (Site not responding. Last check: 2007-11-07)
		Although originally considered a temporary, interim vehicle to meet NASA requirements of that era, the Delta launch vehicle continued to evolve to meet the ever-increasing demands of the civilian and commercial satellite industry, and remains in use today.
		The non-military nature of the original Delta vehicle is historically significant, since it was the reason the booster family was given the name it still holds.
		While rockets carrying the Thor name continued to launch military satellites from Vandenberg Air Force Base, California well into the 1970's, the Delta family has served with distinction as one of the longest-lived programs on the Cape.
	www.spaceline.org /rocketsum/delta-program.html (323 words)

	Delta
		This was solved by using Castor solid rockets strapped to the base of the vehicle to increase the lift-off thrust.
		For Delta III or Delta IV, it indicates the length of the fairing in metres.
		Delta 3 was an attempt by the manufacturer to provide the ultimate development of the original Delta booster.
	www.astronautix.com /lvfam/delta.htm (2452 words)

	USATODAY.com - Rocket fleet faces possible phasing out (Site not responding. Last check: 2007-11-07)
		The so-called EELVs are the Boeing Delta 4 and Lockheed Martin Atlas 5 families of launch vehicles.
		The 125-foot-tall Boeing rockets have flown 119 missions since Feb. 14, 1989, delivering payloads to their intended orbits on 117 of those flights.
		The first launch of a heavy-lift Delta 4 rocket in December, which was billed as a demonstration flight, failed to place its payloads in their proper orbits.
	usatoday.com /tech/science/space/2005-09-12-delta-2-phase-out_x.htm?... (824 words)

	Boeing Delta II to Launch Mars Polar Lander and Deep Space 2
		Over the years, Delta rockets have successfully placed into orbit an impressive number of scientific payloads, sending planetary spacecraft to the farthest reaches of our solar system.
		Delta rockets sent Mars Pathfinder and Mars Global Surveyor to the Red Planet in 1996.
		The Delta II is manufactured in Huntington Beach, Calif., with final assembly in Pueblo, Colo., and is powered by the RS-27A engine built by Boeing in Canoga Park, Calif. The Delta launch team at Cape Canaveral Air Station will handle launch coordination and operations.
	science.ksc.nasa.gov /mars/msp98/news/news35.html (510 words)

	Howstuffworks "How the Delta IV Heavy Works"
		Rockets must be able to lift themselves and their cargos, which combined can weigh as much as 800 tons, and fly hundreds or even thousands of miles above the Earth.
		Modern rockets are in essence the ships and trucks of space, our primary means of transportation to the stars.
		In this article, we'll look at the newest member of Boeing's established Delta family of rockets, the Delta IV Heavy rocket, and see how it meets the challenges facing rockets today.
	science.howstuffworks.com /delta-heavy.htm (119 words)

	sciforums.com - Why Is The Us Developing The Delta Rockets When The Saturn 5 Is So Much Better?
		Delta project emerged very much from the millitary scene and their main requirements are medium sized spysattelites in low-earth orbit, still if Bush wants to return to the moon or even to mars, something bigger or smarter than the Delta has to be made
		Most satellites are launched with much cheaper rockets and not with the space shuttle.
		Deltas are meant for launching conventional satellites; weather satellites, spy satellites, communications satellites, etc.
	www.sciforums.com /showthread.php?t=32754 (1121 words)

	New Scientist Breaking News - Delta rockets to first success
		The Delta IV was originally intended to take off on Saturday, but the launch was postponed after engineers discovered cracks in a rocket engine due to be used on a future Delta IV mission.
		The small cracks were found in an upper stage rocket engine that ignites after the main rocket engine and two boosters are jettisoned, pushing the rocket's payload into the right orbit.
		The next launch of the Delta IV is expected to be early in 2003, carrying a military communications satellite.
	www.newscientist.com /article.ns?id=dn3097 (414 words)

	Success Stories
		The Delta IV rockets are configured to accommodate the satellites of the future, which are expected to be larger and heavier.
		Two historical challenges that the Boeing Delta IV aerodynamics team eliminated by acquiring the cluster system were their reliance on government run supercomputing facilities and their need to purchase costly upgrades to their heritage high-end computing systems to expand capability.
		The goal that the Boeing Delta IV aerodynamics team intends to achieve with the new cluster system is to increase the reliability of the Boeing Delta IV Rockets.
	amd.com /es-es/Corporate/VirtualPressRoom/0,,51_104_566~37899,00.html (1860 words)

	Rockets and Space Transportation (Site not responding. Last check: 2007-11-07)
		When a rocket flies from one planet to another, it typically fires a rocket engine to depart one planet, and perhaps fires another rocket engine to stop at the destination, but it can coast in between.
		The rocket's equivalent of the automobile's distance is the Delta-V, typically measured in meters per second (m/s) or kilometers per second (km/s).
		The oldest types of rockets are chemical rockets, in which two or more chemicals mix together, producing a chemical reaction.
	www.pma.caltech.edu /~chirata/deltav.html (1781 words)

	SPACE.com -- Boeing Seeks Commercial Customer for First Delta 4 Launch
		In all, Boeing is planning four Delta 4 missions in 2002, one in each quarter.
		The company is looking for a commercial payload for the third flight, and will demonstrate the heavy-lift variant of the Delta 4 in the fourth mission, he said.
		It is unlikely that any of those rockets would be launched this year, however, because no payloads are available, he said.
	www.space.com /businesstechnology/technology/boeing_delta_4_010118.html (361 words)

	SPACE-TALK - Delta Rockets and the space station (Site not responding. Last check: 2007-11-07)
		From what I understand the Delta rocket can be reconfigured to launch different size payloads.
		Because of the diversity of the Delta Rocket program could parts of the Space station be launched aboard a delta rocket.
		Nasa is currently looking in to using the delta and atlas rockets as the main power source for the launch of the new breed of shuttles...
	www.space-talk.com /ForumE/showthread.php3?threadid=1667 (1025 words)

	APOD: December 13, 1995 - A Delta Rocket Launches (Site not responding. Last check: 2007-11-07)
		Delta rockets have been launched successfully over 200 times.
		A Delta rocket is scheduled to launch the X-ray Timing Explorer Satellite (XTE) in the very near future.
		Delta rockets are manufactured for the USAF and NASA by McDonnell Douglas Space Systems Co.
	antwrp.gsfc.nasa.gov /apod/ap951213.html (115 words)

	Delta
		Delta 3 - Delta 3 on the pad before its first launch attempt.
		Through a myriad of versions it emerged as the reliable and economical Delta commercial satellite launch vehicle by the mid-1960’s.
		It would consist of 3 Shuttle SRM's, attached around a ring of six Delta RS-27 first stage boosters, which in turn clustered around a single Delta first stage booster that was the last stage of the launch vehicle.
	www.fplib.org /partners/mwade/lvfam/delta.htm (731 words)

	Spaceflight Now \| Breaking News \| Boeing building new launch pad for 21st century
		The 80,000-square-foot Delta Operations Center located about two miles from the pad is being prepared to house the 300-person Delta 4 launch team.
		The rockets are being built at Boeing's plant in Decatur, Alabama.
		The rocket is erected upright atop the launch table and enclosed by the mobile service tower.
	spaceflightnow.com /news/0003/03slc37bmst (1320 words)

	Delta II rocket prepared for launch of Deep Space 1 (Site not responding. Last check: 2007-11-07)
		Delta II rockets are medium capacity expendable launch vehicles derived from the Delta family of rockets built and launched since 1960.
		The Delta 7236 has three solid rocket boosters and a Star 37 upper stage.
		Delta IIs are manufactured in Huntington Beach, Calif. Rocketdyne, a division of The Boeing Company, builds Delta II's main engine in Canoga Park, Calif. Deep Space 1, the first flight in NASA's New Millennium Program, is designed to validate 12 new technologies for scientific space missions of the next century.
	science.ksc.nasa.gov /gallery/photos/1998/xml/KSC-98PC-1119.xml (191 words)

	EMRR's Review: Art Applewhite Rockets - Delta Flying Saucer 24mm (6")
		The main difference between his Delta saucers and his standard line is that there are no fins, and both the top and bottom shrouds extend to the motor mount.
		I have always liked UFO type rockets like the Estes Snitch which I was glad to find out about these good quality kits that are high drag and dying to fly.
		I love this rocket and I recommend it to anyone who is good with an X-Acto knife and is looking for a good backyard rocket.
	www.rocketreviews.com /reviews/kits/aaw_24mm_gold.html (1991 words)

	GRIDtoday: Linux NetworX GRID CLUSTER BOOSTS BOEING'S DELTA IV ROCKETS
		Any new rocket is unproven until it demonstrates a series of successful launches before it can be deemed reliable.
		This database enables the engineers to ensure that the rocket will maintain control authority and structural integrity throughout its flight profile for the full range of atmospheric conditions and winds that the vehicle could experience at launch and during flight.
		The goal that the Boeing Delta IV aerodynamics team intends to achieve with the new cluster system is to increase the reliability of the Boeing Delta IV.
	www.gridtoday.com /03/0113/100949.html (1846 words)

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