Rehbar is a series of
sounding rocket
A sounding rocket or rocketsonde, sometimes called a research rocket or a suborbital rocket, is an instrument-carrying rocket designed to take measurements and perform scientific experiments during its sub-orbital flight. The rockets are often ...
s launched into the upper atmosphere by Pakistan's
Space and Upper Atmosphere Research Commission
The Space & Upper Atmosphere Research Commission, commonly referred to as SUPARCO, is the national space agency of Pakistan.
The agency, originally established in 1961 as a committee in Karachi, became an independent commission in 1981. Its in ...
(SUPARCO). Rehbar-I was the first rocket launched by SUPARCO, on 7 June 1962.
Rehbar-I was a two-staged
solid fuel
Solid fuel refers to various forms of solid material that can be burnt to release energy, providing heat and light through the process of combustion. Solid fuels can be contrasted with liquid fuels and gaseous fuels. Common examples of solid fu ...
rocket.
Various sounding rocket models were launched by Pakistan approximately 200 times between 1962 and 1972. Twenty-four of those flights were in the Rehbar series.
The Rehbar series of flights utilized no less than three and possibly four different sounding rockets. The rockets used were
Centaure,
Judi-Dart,
Nike-Cajun
The Nike-Cajun was a two-stage sounding rocket built by combining a Nike base stage with a Cajun upper stage. The Nike-Cajun was known as a CAN for Cajun And Nike. The Cajun was developed from the Deacon rocket. It retained the external size, ...
, and according to one source,
Nike-Apache
The Nike Apache, also known as Argo B-13, was a two-stage sounding rocket developed by Aerolab, later Atlantic Research, for use by the United States Air Force and NASA. It became the standard NASA sounding rocket and was launched over 600 time ...
.
Other sounding rockets used by Pakistan were
Dragon 2B,
Petrel
Petrels are tube-nosed seabirds in the phylogenetic order Procellariiformes.
Description
Petrels are a monophyletic group of marine seabirds, sharing a characteristic of a nostril arrangement that results in the name "tubenoses". Petrels enco ...
, and
Skua.
Rehbar literally means "one who leads the way" in
Urdu
Urdu (; , , ) is an Indo-Aryan languages, Indo-Aryan language spoken chiefly in South Asia. It is the Languages of Pakistan, national language and ''lingua franca'' of Pakistan. In India, it is an Eighth Schedule to the Constitution of Indi ...
.
Description
In 1960,
President John F. Kennedy challenged US scientists to land an American on the Moon and bring him back safely to Earth, before the decade was out.
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States ...
rose to the occasion and achieved this staggering task with the landing of
Apollo 11
Apollo 11 was a spaceflight conducted from July 16 to 24, 1969, by the United States and launched by NASA. It marked the first time that humans Moon landing, landed on the Moon. Commander Neil Armstrong and Lunar Module pilot Buzz Aldrin l ...
on the Moon in 1969.
In 1961, NASA realized that the Indian Ocean region was a black hole of data relating to the wind structure of the upper atmosphere which was badly needed for NASA's satellite/Apollo programs. NASA offered all countries on the littoral of the Indian Ocean help to establish rocket ranges in order to obtain such data on condition of fully sharing it with NASA.
President Ayub Khan accompanied by his Chief Scientific Advisor Prof.
Abdus Salam were on a state visit in the U.S. at the time. Pakistan seized the offer and Prof.
Abdus Salam invited Pakistan Atomic Energy Commission's (PAEC) senior engineer
Tariq Mustafa to join him in meeting with NASA officials in September 1961 to finalize the arrangement and Pakistan was the first country to take up the offer.
The Rehbar sounding rocket program was built around the U.S. Nike-Cajun/Apache rockets carrying sodium vapor and experiments to measure the wind velocities and wind shears in the upper atmosphere. The 5-member team responsible for this pioneering program was led by Tariq Mustafa and also included
Salim Mehmud and Sikander Zaman, both of whom later became Chairmen of SUPARCO.
Rehbar-1 was launched on 7 June 1962. In a period of nine months; the Pakistani team was established, their training completed in US facilities, the rocket range equipment and instrumentation procured, the scientific payloads selected, construction of the rocket range at Sonmiani completed and the first rocket successfully launched. This was a unique achievement that even surprised NASA's specialists. Pakistan was the first amongst all developing (including Brazil, China and India) and Islamic countries to carry out a scientific rocketry program.
The Rehbar-I successful launch carried a payload of 80
pounds of
sodium
Sodium is a chemical element; it has Symbol (chemistry), symbol Na (from Neo-Latin ) and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 element, group 1 of the peri ...
and it streaked up about 130 km into the
atmosphere
An atmosphere () is a layer of gases that envelop an astronomical object, held in place by the gravity of the object. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low. A stellar atmosph ...
. The Rehbar-I was a two-stage rocket with all solid-propellant motors. The first launch of the Rehbar-I took place in
Sonmiani on 7 June 1962.
Achievements
The Rehbar rocket series was an experimental rocket program which later played an important role in Pakistan's development of a missile program. Throughout the 1960s until the early 1970s, the
SUPARCO launched more than 200 rockets using different experimental payloads. With the launching of Rehbar-1, Pakistan became the third country in
Asia
Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...
, first country in
South Asia
South Asia is the southern Subregion#Asia, subregion of Asia that is defined in both geographical and Ethnicity, ethnic-Culture, cultural terms. South Asia, with a population of 2.04 billion, contains a quarter (25%) of the world's populatio ...
, the
Islamic world
The terms Islamic world and Muslim world commonly refer to the Islamic community, which is also known as the Ummah. This consists of all those who adhere to the religious beliefs, politics, and laws of Islam or to societies in which Islam is ...
and the tenth in the entire
world
The world is the totality of entities, the whole of reality, or everything that Existence, exists. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique, while others talk ...
to launch a rocket into outer space. It was followed by the successful launch of the Rehbar-II in 1962. The last launch of the Rehbar rocket program took place on 8 April 1972.
Partial Launch log
See also
*
Nike Cajun
*
Judi-Dart
*
Centaure
*
Satellite Launch Vehicle
*
SUPARCO
*
Chronology of Pakistan's rocket tests
*
Solid-fuel rocket
A solid-propellant rocket or solid rocket is a rocket with a rocket engine that uses Rocket propellant#Solid chemical propellants, solid propellants (fuel/oxidizer). The earliest rockets were solid-fuel rockets powered by gunpowder. The incepti ...
References
External links
Suparco: History
{{Pakistanspaceagency
Science and technology in Pakistan
R
Rockets and missiles
Space launch vehicles of Pakistan
Sounding rockets of Pakistan
Space programme of Pakistan
History of science and technology in Pakistan
SUPARCO missions