Mercury-Atlas 5 and Indo-Pakistani war of 1947–1948: Difference between pages

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The Indo-Pakistani War of 1947 sometimes known as the '''First Kashmir War''' was a war fought between [[India]] and [[Pakistan]] over the region of [[Kashmir]] from [[1947]] to [[1949]]. It was the first of the many wars fought among the two newly independent nations.
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==Cause==
|+<font size="+1">'''Mercury-Atlas 5'''</font>
The state of [[Jammu and Kashmir]] had been part of India since time immemorial. It was one of a number of Indian states that recognised British paramountcy. Prior to the withdrawal of the British from India, the state came under pressure from both India and Pakistan to join their states. The [[Maharaja]] of Kashmir, [[Hari Singh]] wanted to remain independent and tried to delay the issue. However at the time of British withdrawal the state was invaded by a concentrated force of Pakistani-backed irregulars and regular Pakistani soldiers. This forced him to accede Kashmir to India who promptly rushed into Kashmir and thus the war had started.
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!align="center" colspan="2" cellspacing="0" cellpadding="2" bgcolor="#FFDEAD"|Mission Insignia
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|colspan="2" align="center"|[[Image:Mercury_insignia.jpg|Mercury 2 insignia]]
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!align="center" colspan="2" cellspacing="0" cellpadding="2" bgcolor="#FFDEAD"|Mission Statistics
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|'''Mission Name:'''||Mercury MA-5
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|'''Call Sign:'''||MA-5
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|'''Number of<br>Crew Members:'''||1 primate
|-
|'''Launch:'''||[[November 29]], [[1961]]<br>15:08 [[UTC]]<br>[[Cape Canaveral]]<br>Complex 14
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|'''Landing:'''||[[November 29]], [[1961]]<br>18:29
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|'''Duration:'''||3 h 20 min 59 s
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|'''Number of<br>Orbits:'''||2
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|'''[[Apogee]]:'''||147.4 mi<br>237.2 km
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|'''[[Perigee]]:'''||99.5 mi<br>160.1 km
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|'''Distance<br>Traveled:'''||50,892 mi<br>81,902 km
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|'''Maximum<br>velocity:'''||17,530 mph<br>28,212 km/h
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|'''Peak acceleration:'''||7.7 g (74.5 m/s&sup2;)
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|'''Mass:'''||1,331 kg
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!align="center" colspan="2" cellspacing="0" cellpadding="2" bgcolor="#FFDEAD"|Crew Picture
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|colspan="2" align="center"|[[Image:S61-04398.jpg|center|thumb|175px|Mercury 2 crew portrait (NASA)]]
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!align="center" colspan="2" cellspacing="0" cellpadding="2" bgcolor="#FFDEAD"|'''Enos''' the Chimp
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'''Mercury-Atlas 5''' was an [[United States|American]] unmanned [[spaceflight]] of the [[Mercury program]]. It was launched on [[November 29]], [[1961]] with [[Animals in space|Enos]], a [[chimpanzee]], aboard. The craft orbited the [[Earth]] twice and splashed-down off the coast of [[Puerto Rico]], a territory associated with the [[United States]] in the eastern [[Caribbean]]. Enos was unharmed.
 
==Summary of War==
By November 1961, the Soviets had launched two men into orbit and the United States still had not orbited a chimp. Some NASA leaders opposed the chimpanzee flight. NASA headquarters questioned the wisdom of MSC wasting time on another unmanned Mercury mission, when the Soviet's had already flown two successful manned orbital flights. NASA Headquarters Public Affairs Office finally issued the following statement, "The men in charge of Project Mercury have insisted on orbiting the chimpanzee as a necessary preliminary checkout of the entire Mercury program before risking a human astronaut."
The AZK had several advantages in the war, notably:
*Prior to the war the Jammu and Kashmir state forces had been spread thinly around the border as a response to terrorist activity, and so were badly deployed to counter a full scale invasion.
*Some of the state forces rebelled and joined the invaders.
*The AZK were also aided by regular Pakistani soldiers who manned some of their units, with the proportion increasing throughout the war.
*British officers may have helped the Pakistanis plan the attack.
As a result of these advantages the main invasion force quickly brushed aside the Jammu and Kashmir state forces. But the attacker’s advantage was not vigorously pressed and the Indians saved the country by airlifting reinforcements. This was at the price of the state formally succeeding to India. With Indian reinforcements the Pakistani / AZK offensive ran out of steam towards the end of 1947. The exception to this was in the High Himalayas sector where the AZK were able to make substantial progress until turned back at the outskirts of Leh in late June 1948. Throughout 1948 many small-scale battles were fought. None of these gave a strategic advantage to either side and the fronts gradually solidified. Support for the AZK forces by Pakistan became gradually more overt with regular Pakistani units becoming involved. A formal cease-fire was declared on [[31 December]], 1948.
==Results of the War==
The independent state of Jammu and Kashmir ceased to exist. The cease fire line has over the years became a de facto division of the country. This has given about one third of the land area to Pakistan and about two thirds to India. The Indians retained control of the relatively wealthy and populous Kashmir Valley, and a majority of the population. In [[1956]], this area became the state of Jammu and Kashmir in the India union.
 
==Stages of the War==
The flight used Mercury spacecraft # 9 and [[Atlas (rocket)|Atlas]] # 93-D. On [[February 24]], [[1961]] spacecraft # 9 arrived at [[Cape Canaveral]]. It took 40-weeks of preflight preparation. This was the longest preparation time in the [[Mercury program]]. The mission of spacecraft # 9 kept changing. It had been first been configured for a suborbital instrumented flight, then for a suborbital chimpanzee flight, then a three-orbit instrumented mission, and finally for the orbital flight that ''Enos'' flew.
This war has been split into ten stages by time. The individual stages are detailed below.
 
===Initial Invasion 22 Oct 1947 – 26 Oct 1947 (Op Gulmarg)===
MA-5 was planned as a close approximation of the upcoming MA-6 manned orbital mission.
[[Image:J&K01low.jpg|Initial Invasion 22 Oct 1947 – 26 Oct 1947 (Op Gulmarg)]]<br>
Mercury-Atlas 5 would be launched from Complex 14 at Cape Canaveral on a heading 72.51 degrees east of north. Orbital insertion of the Mercury spacecraft would occur 480 miles (722 km) from Cape Canaveral. The altitude would be 100 miles (161 km) and the speed would be 25,695 ft/s (7,832 m/s). Retrofire was planned to take place at 4 hours, 32 minutes, and 26 seconds after launch. The spacecraft would land 21 minutes and 49 seconds after retrofire. Reentry temperatures should reach 3,000 degrees F (1,650 deg C.) on the heatshield, 2,000 degrees F (1,095 deg C) on the antenna housing, 1,080 degrees F (582 deg C) on the cylindrical section, and 1,260 degrees F (682 deg C) on the conical section. The spent Atlas sustainer engine should reenter the atmosphere after 9 1/3 orbits.
A large invasion of the Kashmir valley was mounted by the irregular forces, aimed at Srinagar, the capital of Jammu and Kashmir. The state forces were defeated and the way to the capital, ([[Srinagar]]), was open. There was also a mutiny by state forces in favour of the AZK in Domel.
In desperation, Hari Singh, the ruler of Kashmir requested the Indian Government for Indian troops to stop the uprising. The Indians told him that if Singh signed an Instrument of Accession allowing Kashmir to join the Indian Union, only then would India rush in troops for the protection of one of its territories. This, the Maharaja promptly did. Following this accession, the Indian troops arrived and quickly blocked the advance of the invaders, preventing the imminent sacking of Srinigar.
However, many of the irregular forces went home with their loot after plundering local towns and thus failed to press the attack home. In the Punch valley the Jammu and Kashmir state forces retreated into towns and were besieged.
 
----
On [[October 29]], [[1961]], three chimps and 12 medical specialists moved into quarters at the Cape to prepare for the flight. The name given to "Enos," the chimp selected to fly the MA-5 mission, in Greek or Hebrew means "man". '''Enos's''' backups were (in order possible call-up) ''Duane'', ''Jim'', ''Rocky'' and ''Ham'' (the MR-2 veteran). Enos was from [[Cameroun]], Africa, (originally called Chimp # 81), and was purchased by the USAF on April 3, 1960.
 
===Indian defence of the Kashmir Valley 27 Oct 1947 – 17 Nov 1947===
On [[November 29]], [[1961]], about five hours before launch, ''Enos'' and his spacesuit-couch were inserted in the spacecraft. During the countdown, various holds took 2 hours and 38 minutes. Liftoff came at 15:08 UTC. The Atlas launched the MA-5 spacecraft into an orbit of 99 miles (159 km) by 147 miles (237 km).
[[Image:J&K02low.jpg|Indian defence of the Kashmir Valley 27 Oct 1947 – 17 Nov 1947]]<br>
Indian forces, rapidly airlifted to Srinagar managed to defeat the irregular forces on the outskirts of the town. This was partially due to an outflanking manoeuvre by armoured cars. Shattered, the AZK were pursued as far as Baramula and Uri and these towns were recaptured. In the Punch valley the sieges of the loyal Jammu and Kashmir state forces continued. Meanwhile, the troops in Gilgit (the Gilgit Scouts) mutinied and this yielded most of the far north of the state to the AZK.
----
=== Attempted link-up at Punch 18 Nov 1947 – 26 Nov 1947===
[[Image:J&K03low.jpg|Attempted link-up at Punch 18 Nov 1947 – 26 Nov 1947]]<br>
The Indian forces ceased their pursuit of the shattered AZK forces and swung south in an attempt to relieve Punch. This was less successful than hoped, because inadequate reconnaissance had underestimated the difficulty of the roads. Although the relief column eventually reached Punch, the siege could not be lifted. A second relief column reached only Kotli and was forced to evacuate its garrison. Mirpur was captured by the AZK and its inhabitants particularly the Hindus were slaughtered.
----
===Fall of Jhanger and attacks on Naoshera and Uri 25 Nov 1947 - 6 Feb 1948===
[[Image:J&K04low.jpg|Fall of Jhanger and attacks on Naoshera and Uri 25 Nov 1947 - 6 Feb 1948]]<br>
The Pakistani/AZK forces attacked and captured Jhanger. They then attacked Naoshera unsuccessfully. In both areas they killed and raped not only Hindus but any muslims who were against them. Other Pakistani/AZK forces made a series of unsuccessful attacks on Uri. In the south a minor Indian attack secured Chhamb. By this stage of the war the front line began to stabilise as more Indian troops became available.
----
===Op Vijay: counterattack to Jhanger 7 Feb 1948 - 1 May 1948===
[[Image:J&K05low.jpg| Op Vijay: counterattack to Jhanger 7 Feb 1948 - 1 May 1948]]<br>
The Indian forces launched a counterattack in the south recapturing Jhanger and Rajauri. In the Kashmir Valley the Pakistani/AZK forces continued attacking the Uri garrison. In the north Skardu was brought under siege by Pakistani/AZK forces.
----
===Indian Spring Offensive 1 May 1948 - 19 May 1948===
[[Image:J&K06low.jpg|Indian Spring Offensive 1 May 1948 - 19 May 1948]]<br>
The Indians held onto Jhanger against numerous counterattacks from the AZK, who were increasingly supported by regular Pakistani Forces. In the Kashmir Valley the Indians attacked, recapturing Tithwail. The AZK made good progress in the High Himalayas sector, infiltrating troops to bring Leh under siege, capturing Kargil and defeating a relief column heading for Skardu.
----
===Operations Gulab and Erase 19 May 1948 - 14 Aug 1948===
[[Image:J&K07low.jpg|Indian Spring Offensive 1 May 1948 - 19 May 1948]]<br>
The Indians continued to attack in the Kashmir Valley sector driving north to capture Keran and Gurais. They also repelled a counterattack aimed at Tithwail. In the Punch Valley the forces besieged in Punch broke out and temporarily linked up with the outside world again. The AZK made good progress in the High Himalayas sector and got to the outskirts of Leh and eventually captured Skardu. However an attempt to take the town of Leh itself was unsuccessful.
----
===Operation Duck 15 Aug 1948 - 1 Nov 1948===
[[Image:J&K08low.jpg|Operation Duck 15 Aug 1948 - 1 Nov 1948]]<br>
During this time the front began to settle down with less activity by either side, the only major event was an unsuccessful attack by the Indians towards Dras (Operation Duck). The siege of Punch continued.
----
===Operation Easy. Punch link-up 1 Nov 1948 - 26 Nov 1948===
[[Image:J&K09low.jpg|Operation Easy. Punch link-up 1 Nov 1948 - 26 Nov 1948]]<br>
The Indians now started to get the upper hand in all sectors. Punch was finally relieved after a siege of over a year. The AZK forces in the High Himalayas, who had previously made good progress, were finally defeated. The Indians pursued as far as Kargil before being forced to halt due to supply problems. The Zoji-La pass was forced by using tanks (which had not been thought possible at that altitude) and Dras was recaptured. The use of tanks was based on experience gained in Burma in 1945.
----
===Moves up to cease-fire. 27 Nov 1948 - 31 Dec 1948===
[[Image:J&K10low.jpg| Moves up to cease-fire. 27 Nov 1948 - 31 Dec 1948]]<br>
 
Realising that they were not going to make any further progress in any sector, the Pakistanis decided to end the war. A UN cease-fire was arranged for the 31st Dec 1948. A few days before the cease-fire the Pakistanis launched a counter attack, which cut the road between Uri and Punch.
The turnaround and damping maneuver consumed 6 pounds (2.7 kg) of the 61.5 pounds (27.9 kg) of control fuel aboard. The spacecraft used less fuel than the MA-4 did during the same maneuver. MA-5 assumed its planned 34 degree orbital attitude and after that, through the first orbit the thrusters used only 1.5 pounds of fuel to maintain a correct position.
After protracted negotiations a cease-fire was agreed to by both countries, which came into effect. The terms of the cease-fire as laid out in the UNCIP resolution (http://www.mtholyoke.edu/acad/intrel/uncom1.htm) of [[August 13]], 1948 were adopted by the UN on [[January 5]], 1949. This required Pakistan to withdraw her forces, both regular and irregular, while allowing India to maintain minimum strength of her forces in the state to preserve law and order. On compliance of these conditions a plebiscite was to be held to determine the future of the territory. In all, 1,500 soldiers died on each side during the war and Pakistan was able to acquire roughly two-fifths of Kashmir. (http://www.globalsecurity.org/military/world/war/indo-pak_1947.htm)
 
==Military insights gained from the war.==
At the end of the first orbit, ground controllers noticed the capsule clock was 18 seconds too fast. As it passed over Cape Canaveral a command was sent to update the clock to the correct time. The Mercury Control Center at Cape Canaveral received information that all spacecraft systems were in good condition.
===On the use of armour===
The use of light tanks and armoured cars was important at two stages of the war. Both of these Indian victories involved very small numbers of AFVs. These were:-
*The defeat of the initial thrust at Srinagar, which was aided by the arrival of 2 armoured cars in the rear of the irregular forces.
*The forcing of the Zoji-La pass with 11 Stuart M5 light tanks.
This may show that armour can have a significant psychological impact if it turns up at places thought of as impossible.
It is also likely that the invaders did not deploy anti-tank weapons to counter these threats. Even the lightest weapons will significantly encumber leg infantry units, so they may well have been perceived as not worth the effort of carrying about, and left in rear areas. This will greatly enhance the psychological impact of the armour when it does appear.
The successful use of armour in this campaign strongly influenced Indian tactics in the 1962 war where great efforts were made to deploy armour to inhospitable regions (although with much less success in that case).
 
===Progression of front lines===
Then as the MA-5 passed over the Atlantic tracking ship at the beginning of the second orbit, indications were received that inverter temperatures were rising. The environmental control system malfunction was also confirmed by Canary Island trackers. Abnormal heating had occurred on earlier flights, inverters had continued working or had been switched to standby in such cases. There was no alarm at Mercury Control. When the spacecraft reached Muchea, Australia, high thruster signals and capsule motion excursions were detected. Other data indicated that the 34-degree orbit mode was being maintained. When the MA-5 crossed the Woomera, Australia, tracking station, attitude control problems were not detected, so earlier reports were discounted.
*It is interesting to chart the progress of the front lines. After a certain troop density is reached progress was very slow with victories being counted in the capture of individual villages or peaks. Where troop density was lower (as it was in the High Himalayas sector and at the start of the war) rates of advance can be very high.
===Deployment of forces===
*The Jammu and Kashmir state forces were spread out in small packets along the frontier to deal with terrorist incidents. This made them very vulnerable to a conventional attack. India used this tactic against East Pakistan in 1971.
==References==
===Major Sources===
*“Operations In Jammu and Kashmir 1947-1948” Ministry of Defence, Government of India, Thomson Press (India) Limited. New Delhi 1987. This is the Indian Official History, and was the major source for this work.
*“The Indian Army After Independence”, by KC Praval, 1993. Lancer International, 1-897829-45-0
*“Slender Was The Thread: The Kashmir confrontation 1947-1948”, by Maj Gen LP Sen, 1969. Orient Longmans Ltd New Delhi.
*“Without Baggage: A personal account of the Jammu and Kashmir Operations 1947-1949” Lt Gen. E. A. Vas. 1987. Natraj Publishers Dehradun. ISBN 81-85019-09-6.
===Other Sources===
*“The Indian Armour: History Of The Indian Armoured Corps 1941-1971”, by Maj Gen Gurcharn Sandu, 1987, Vision Books Private Limited, New Delhi, ISBN 81-7094-004-4.
*“Thunder over Kashmir”, by Lt Col Maurice Cohen. 1955 Orient Longman Ltd. Hyderabad
*“Battle of Zoji La”, by Brig Gen SR Hinds, Military Digest, New Delhi, 1962.
*“History of Jammu and Kashmir Rifles (1820-1956)”, by Maj K Barhma Singh, Lancer International New Dehli, 1990, ISBN 81-7062-091-0.
 
==See also==
As the MA-5 capsule reached the Canton Island station, Mercury Control realized that the attitude control system was malfunctioning. A metal chip in a fuel supply line had caused one of the clockwise roll thrusters to fail. The failed thruster allowed the spacecraft to drift from its normal attitude. This drift caused the automatic stabilization and control system to correct the spacecraft attitude. The spacecraft would swung back into the normal 34 degree orbital attitude, and the sequence would start again. The spacecraft repeated this drift and correction process nine times before retrofire. It did it once more between retrofire and the receipt of the 0.05 g (0.49 m/s&sup2;) light telemetry signal. The remaining thrusters used 9.5 pounds of fuel to keep the spacecraft properly aligned during the second orbit. Each loss of attitude cost over 1 pound (0.45 kg) of fuel as compared with the entire first orbit consumption of only 1.5 pounds (0.68 kg).
*[[Indo-Pakistani War of 1965]]
*[[Partition of India]]
 
[[Category:Indo-Pakistan Wars]]
In addition to the attidude control problems, the environmental control system started having problems during the second orbit. The couch-suit circuit temperature rapidly rose from 65 to 80 degrees F (18 to 26 deg C.). This was an indication that the heat exchanger was freezing. The rise in suit temperature caused Enos' body temperature to rise to 99 F (37.2 deg C), then to 100 degrees F (37.8 deg C). The medical observers began to worry, about the chimp's condition. At 100.5 degrees F (38 deg C), his body temperature stabilized. This indicated that the environmental system had started to function again. The cooling system seemed to correct itself, but the attitude problems continued.
[[Category:Kashmir]]
 
[[Category:1947]]
As the spacraft neared Hawaii on its second orbit, medical monitors were willing to let Enos continue the flight for a third orbit. Engineers were concerned, however, about fuel consumption. They worried that after a third orbit, there would not be enough fuel for attitude control during reentry.
[[Category:Jammu and Kashmir]]
 
Flight Director Christopher Kraft alerted the Hawaii controllers to be ready to initiate retrofire to bring the spacecraft down in the Pacific, if necessary. He also alerted controllers at Point Arguello, California, to be ready to initiate retrofire as MA-5 passed over their position. He allowed the spacecraft to continue to its normal second orbit, retrofire position near California. Twelve seconds before the retrofire point was reached for the normal second-orbit Atlantic primary recovery point, Kraft decided to bring Enos back to Earth. The chief flight controller at Point Arguello, executed the command.
 
There was one more attitude control excursion early in reentry, after that, the rest of reenty and recovery were uneventful. The destroyers Stormes and Compton and a P5M airplane were waiting for the spacecraft at Station 8, the predicted landing point. Three hours and 13 minutes after launch and nine minutes before splashdown, the aircraft spotted the spacecraft at an altitude of 5000 feet (1,525 m)descending on its main parachute. The information was relayed to the Stormes and the Compton, who were 30 miles (48 km) away. The spacecraft recovery aids, except for the sarah beacon, were functioning. During the descent, the airplane continued to circle and report landing events. It remained in the area until the Stormes arrived, an hour and 15 minutes after the landing. The Stormes hauled Enos and his spacecraft aboard. On the deck of the Stormes, the MA-5 hatch was blown explosively. It was released from outside the capsule by a pulling a lanyard. Blowing the hatch caused the spacecraft "picture" window to crack.
 
The spacecraft and Enos were both found to have survived the mission in good condition.
 
On Nov. 4, 1962, Enos died of dysentery caused by shigellosis, which was resistant to antibiotics of the time. He had been under constant observation for two months before his death. Pathologists at Holloman reported that they found no symptom that could be attributed or related to his space flight a year before.
 
The Mercury spacecraft had now been qualified to carry a human into orbit.
 
Mercury spacecraft # 9 used in the Mercury-Atlas 5 mission , is currently displayed at the North Carolina Museum of Life and Science, Durham NC. [http://aesp.nasa.okstate.edu/fieldguide/pages/mercury/MA-5.html Mercury spacecraft #9 display page on A Field Guide to American Spacecraft website.]
 
===See also===
[[Splashdown]]
 
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