A-001

Last updated

A-001
Little Joe II launch.jpg
Little Joe II launch with A-001
Mission typeAbort test
Operator NASA
Mission duration5 minutes, 50.3 seconds
Distance travelled6.82 kilometers (4.24 mi)
Apogee9.08 kilometers (5.64 mi)
Spacecraft properties
Spacecraft Apollo BP-12
Start of mission
Launch dateMay 13, 1964, 12:59:59 (1964-05-13UTC12:59:59Z) UTC
Rocket Little Joe II
Launch site White Sands LC-36
End of mission
Landing dateMay 13, 1964, 13:05:51 (1964-05-13UTC13:05:52Z) UTC
Apollo program.svg
Project Apollo
Abort Tests
 

A-001 was the second abort test of the Apollo spacecraft.

Contents

Objectives

Mission A-001 was the second in the series of tests conducted to demonstrate that the launch escape system could safely remove the command module under critical abort conditions. Unlike Pad Abort Test 1, in which the launch escape system was ignited at ground level, this mission was flown to demonstrate the capability of the escape system to propel the command module safely away from a launch vehicle while in the high-dynamic-pressure (transonic) region of the Saturn trajectory.

The launch vehicle was the second in the series of Little Joe II vehicles, which had been developed to accomplish early and economical testing of the launch escape system. The Little Joe II was propelled by seven solid-propellant rocket motors - one Algol sustainer motor, which provided thrust for about 42 seconds, and six Recruit motors, which burned out approximately 1.5 seconds after ignition. The spacecraft consisted of a launch escape system and a boilerplate command and service module (BP-12).

Flight

Unacceptable wind conditions had forced a 24-hour postponement of the launch, but the vehicle was successfully launched on May 13, 1964, at 12:59:59.7 UTC (05:59 am MST). A ground commanded abort signal terminated thrust of the launch vehicle (by rupturing the Algol motor casing), ignited the launch escape and pitch control motors, and separated the command module from the service module. Some structural damage was incurred by the command module aft heat shield because of recontact with the booster at thrust termination. At approximately 44 seconds, the tower jettison motor was ignited and satisfactorily separated the launch escape tower from the command module.

The Earth landing sequence was normal until a riser for one of the three main parachutes broke as a result of its rubbing against the structure on the command module upper deck. The parachute separated; however, the command module, supported by the two remaining parachutes, descended at rates of 9.1 to 7.9 metres per second (30 to 26 ft/s) instead of the predicted 7.3 metres per second (24 ft/s) with three parachutes. The command module landed 6.8 kilometres (22,400 ft) downrange at 350.2 seconds after attaining an altitude of 9.075 kilometres (29,772 ft) above mean sea level. Except for the parachute failure, all test objectives were satisfied.

Boilerplate location

The boilerplate is currently located at the Columbia Memorial Space Center in Downey, California.

PD-icon.svg This article incorporates public domain material from websites or documents of the National Aeronautics and Space Administration .

Related Research Articles

<span class="mw-page-title-main">AS-201</span> 1966 uncrewed, suborbital test flight within the Apollo program

AS-201, flown February 26, 1966, was the first uncrewed test flight of an entire production Block I Apollo command and service module and the Saturn IB launch vehicle. The spacecraft consisted of the second Block I command module and the first Block I service module. The suborbital flight was a partially successful demonstration of the service propulsion system and the reaction control systems of both modules, and successfully demonstrated the capability of the command module's heat shield to survive re-entry from low Earth orbit.

<span class="mw-page-title-main">Pad Abort Test 1</span>

Pad Abort Test 1 was the first abort test of the Apollo spacecraft on November 7, 1963.

<span class="mw-page-title-main">AS-101</span> 1964 Apollo Program test flight

AS-101 was the sixth flight of the Saturn I launch vehicle, which carried the first boilerplate Apollo spacecraft into low Earth orbit. The test took place on May 28, 1964, lasting for four orbits. The spacecraft and its upper stage completed a total of 54 orbits before reentering the atmosphere and crashing in the Pacific Ocean on June 1, 1964.

<span class="mw-page-title-main">AS-102</span>

AS-102 was the seventh flight of the Saturn I launch vehicle, which carried the boilerplate Apollo spacecraft BP-15 into low Earth orbit. The test took place on September 18, 1964, lasting for five orbits. The spacecraft and its upper stage completed 59 orbits before reentering the atmosphere and crashing in the Indian Ocean on September 22, 1964.

<span class="mw-page-title-main">Apollo (spacecraft)</span> Saturn V-launched payload that took men to the Moon

The Apollo spacecraft was composed of three parts designed to accomplish the American Apollo program's goal of landing astronauts on the Moon by the end of the 1960s and returning them safely to Earth. The expendable (single-use) spacecraft consisted of a combined command and service module (CSM) and an Apollo Lunar Module (LM). Two additional components complemented the spacecraft stack for space vehicle assembly: a spacecraft–LM adapter (SLA) designed to shield the LM from the aerodynamic stress of launch and to connect the CSM to the Saturn launch vehicle and a launch escape system (LES) to carry the crew in the command module safely away from the launch vehicle in the event of a launch emergency.

<span class="mw-page-title-main">Apollo command and service module</span> Component of the Apollo spacecraft

The Apollo command and service module (CSM) was one of two principal components of the United States Apollo spacecraft, used for the Apollo program, which landed astronauts on the Moon between 1969 and 1972. The CSM functioned as a mother ship, which carried a crew of three astronauts and the second Apollo spacecraft, the Apollo Lunar Module, to lunar orbit, and brought the astronauts back to Earth. It consisted of two parts: the conical command module, a cabin that housed the crew and carried equipment needed for atmospheric reentry and splashdown; and the cylindrical service module which provided propulsion, electrical power and storage for various consumables required during a mission. An umbilical connection transferred power and consumables between the two modules. Just before reentry of the command module on the return home, the umbilical connection was severed and the service module was cast off and allowed to burn up in the atmosphere.

<span class="mw-page-title-main">AS-103</span> Third orbital flight test of a boilerplate Apollo spacecraft, February 16, 1965

AS-103 was the third orbital flight test of a boilerplate Apollo spacecraft, and the first flight of a Pegasus micrometeroid detection satellite. Also known as SA-9, it was the third operational launch of a two-stage Saturn I launch vehicle.

<span class="mw-page-title-main">Pad Abort Test 2</span>

Pad Abort Test 2 was the follow-on second abort test to Pad Abort Test 1 of the Apollo spacecraft.

<span class="mw-page-title-main">A-002</span> Third abort test of the Apollo spacecraft

A-002 was the third abort test of the Apollo spacecraft.

<span class="mw-page-title-main">A-003</span> 1965 abort test of the Apollo spacecraft

A-003 was the fourth abort test of the Apollo spacecraft. This particular flight is notable because during the abort test flight, an actual abort situation occurred, and further proved the Apollo launch escape system (LES). The CM was successfully pulled away from the malfunctioning Little Joe booster and it landed safely under parachutes.

<span class="mw-page-title-main">A-004</span>

A-004 was the sixth and final test of the Apollo launch escape vehicle and the first flight of a Block I production-type Apollo Command/Service Module.

<span class="mw-page-title-main">Little Joe II Qualification Test Vehicle</span> First test flight of the Apollo Little Joe II rocket in August 1963

QTV was the first test flight of the Apollo Little Joe II rocket. It was launched in August 1963.

<span class="mw-page-title-main">Little Joe II</span> American rocket

Little Joe II was an American rocket used from 1963 to 1966 for five uncrewed tests of the Apollo spacecraft launch escape system (LES), and to verify the performance of the command module parachute recovery system in abort mode. It was named after a similar rocket designed for the same function in Project Mercury. Launched from White Sands Missile Range in New Mexico, it was the smallest of four launch rockets used in the Apollo program.

Apollo abort modes were procedures by which the nominal launch of an Apollo spacecraft, either the Saturn IB or Saturn V rocket, could be terminated. The abort of the flight allowed for the rescue of the crew if the rocket failed catastrophically. Depending on how far the flight had progressed, different procedure or modes would be used. In the history of the Apollo Program, none of the abort modes were ever used on any of the fifteen crewed Apollo spacecraft flights.

<span class="mw-page-title-main">Launch escape system</span> A system to get the crew to safety if a rocket launch fails

A launch escape system (LES) or launch abort system (LAS) is a crew-safety system connected to a space capsule. It is used in the event of a critical emergency to quickly separate the capsule from its launch vehicle in case of an emergency requiring the abort of the launch, such as an impending explosion. The LES is typically controlled by a combination of automatic rocket failure detection, and a manual activation for the crew commander's use. The LES may be used while the launch vehicle is still on the launch pad, or during its ascent. Such systems are usually of three types:

<span class="mw-page-title-main">Boilerplate (spaceflight)</span> Nonfunctional spacecraft or payload

A boilerplate spacecraft, also known as a mass simulator, is a nonfunctional craft or payload that is used to test various configurations and basic size, load, and handling characteristics of rocket launch vehicles. It is far less expensive to build multiple, full-scale, non-functional boilerplate spacecraft than it is to develop the full system. In this way, boilerplate spacecraft allow components and aspects of cutting-edge aerospace projects to be tested while detailed contracts for the final project are being negotiated. These tests may be used to develop procedures for mating a spacecraft to its launch vehicle, emergency access and egress, maintenance support activities, and various transportation processes.

A pad abort test is a test of a launch escape system to determine how well the system could get the crew of a spacecraft to safety in an emergency on the launch pad.

<span class="mw-page-title-main">Saturn V dynamic test vehicle</span> Moon rocket test article in Huntsville, Alabama

The Saturn V dynamic test vehicle, designated SA-500D, is a prototype Saturn V rocket used by NASA to test the performance of the rocket when vibrated to simulate the shaking which subsequent rockets would experience during launch. It was the first full-scale Saturn V completed by the Marshall Space Flight Center (MSFC). Though SA-500D never flew, it was instrumental in the development of the Saturn V rocket which propelled the first men to the Moon as part of the Apollo program. Built under the direction of Dr. Wernher von Braun, it served as the test vehicle for all of the Saturn support facilities at MSFC.

<span class="mw-page-title-main">Orion (spacecraft)</span> American–European spacecraft class for the Artemis program

Orion is a partially reusable crewed spacecraft used in NASA's Artemis program. The spacecraft consists of a Crew Module (CM) space capsule designed by Lockheed Martin and the European Service Module (ESM) manufactured by Airbus Defence and Space. Capable of supporting a crew of six beyond low Earth orbit, Orion can last up to 21 days undocked and up to six months docked. It is equipped with solar panels, an automated docking system, and glass cockpit interfaces modeled after those used in the Boeing 787 Dreamliner. A single AJ10 engine provides the spacecraft's primary propulsion, while eight R-4D-11 engines, and six pods of custom reaction control system engines developed by Airbus, provide the spacecraft's secondary propulsion. Although compatible with other launch vehicles, Orion is primarily intended to launch atop a Space Launch System (SLS) rocket, with a tower launch escape system.

<span class="mw-page-title-main">Algol (rocket stage)</span>

The Algol family of solid-fuel rocket stages and boosters is built by Aerojet and used on a variety of launch vehicles. It was developed by Aerojet from the earlier Jupiter Senior and the Navy Polaris programs. Upgrades to the Algol motor occurred from 1960 until the retirement of the Scout launch vehicle in 1994.