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SSLV или мини PSLV

Автор Salo, 21.12.2019 19:15:42

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Salo

"Были когда-то и мы рысаками!!!"

Salo

"Были когда-то и мы рысаками!!!"


Salo

"Были когда-то и мы рысаками!!!"

Salo

https://thewire.in/space/isro-kulasekarapattinam-thoothukudi-sdsc-sriharikota-sslv-pslv-gslv-antrix
ЦитатаISRO's Second Spaceport, for New SSLV Rocket, to Come up in Tamil Nadu
Late  last year, ISRO had said it was looking for a suitable spaceport site  "near Gujarat", but the idea was likely dropped and attention shifted to  Tamil Nadu.

The relative location of Kulasekarapattinam, Tamil Nadu. Image: Google Maps

The Wire Staff
Space
17 hours ago

The  Indian Space Research Organisation (ISRO) has commenced land  acquisition for its second launchpad in Kulasekarapattinam, a town in  the Thoothukudi (Tuticorin) district of Tamil Nadu, news agency IANS reported on November 29.
 Скрытый текст:
News of this launchpad has been doing the rounds for a year or so but  a confirmation of the scale of activities planned in the chosen area  was hard to come by.


IANS also quoted Thoothukudi district collector Sandeep Nanduri as saying the total land requirement will be 2,300 acres.


ISRO's first and only spaceport, the Satish Dhawan Space Centre  (SDSC), is located in Sriharikota, about 100 km north of Chennai, in the  state of Andhra Pradesh. The organisation launches its PSLV and GSLV  rockets fr om here.


The SDSC, setup in 1971, currently has two active launchpads. Its  first launchpad was decommissioned once the Augmented Satellite Launch  Vehicle programme ended in 1994. The first of the two active pads mostly  services the PSLV and the second, the GSLV, and which ISRO is currently  modifying to accommodate crewed vehicle missions as part of its  upcoming human spaceflight project, Gaganyaan. A third launchpad in the  same premises is also in the works.


The second spaceport at Kulasekarapattinam is expected to provide an  important advantage to ISRO's upcoming Small Satellite Launch Vehicle  (SSLV), a smaller counterpart of the PSLV that the organisation has  developed to launch small-satellites more frequently.


The PSLV is designed to launch satellites into pole-to-pole, or  polar, orbits around Earth. However, it can't enter into such an orbit  straightaway after launch because its trajectory needs to avoid flying  over Sri Lanka, protecting its popular centres fr om any debris from the  rocket. So once the rocket lifts off from Sriharikota, it flies further  east to avoid Sri Lanka and then steers itself back towards the South  Pole.


This manoeuvre requires more fuel, and for a smaller rocket like the  SSLV, the addition could eat into its already limited payload capacity  and reduce the rocket's value for Antrix, ISRO's commercial ventures  operator. By setting up a spaceport in Kulasekarapattinam, however, the  SSLV will lift off over the Lakshadweep Sea and won't have to swerve  around Sri Lanka as it climbs to higher altitudes.


This flight path is beneficial to the PSLV as well. However, analysis by Reddit user @Ohsin earlier  this year suggested the size of the proposed spaceport together with  limitations imposed by the exclusive economic zones of Sri Lanka,  Maldives and the British Indian Ocean Territory confined the launch  corridor to an area too small to be used by the PSLV.


India prefers its spaceports as close to the equator as possible and  located on the east coast for two reasons. First, Earth's rotation  provides a speed boost to rockets launched in the eastward direction,  such as the GSLV Mk II and Mk III, and headed for an equatorial orbit  around the planet. The strength of the boost is higher closer to the  equator. Second, in the event of a failure, debris from an explosion  would fall into the Bay of Bengal instead of onto land, potentially  damaging property or taking lives.


Late last year, ISRO had said it  was looking for a suitable spaceport site "near Gujarat", but the idea  was likely dropped and attention shifted to Tamil Nadu because a  southern spaceport reduces the distance to the South Pole and ensures  access to a vast, unpopulated area below the flight path.


IANS quoted an unnamed ISRO official saying the site in  Kulasekarapattinam had in fact been "considered long ago" as a spaceport  but was abandoned after "the locals opposed" it.


There has been some opposition this time as well, though not  widespread. In June 2019, residents of Alagapuram panchayat in  Thoothukudi district, near wh ere the proposed launch site is located,  petitioned the district collector after discovering that a part of the  residential area of the panchayat, home to 2,000 families, was to be  acquired to develop the site.


"Any development should not affect the people living there," a former president of the panchayat had told Times of India then.


The state of Tamil Nadu in general has been wary of centrally funded  Big Projects. Local activists and politicians had already successfully  prevented the Department of Atomic Energy from setting up a very large science experiment in Theni district before the tragic events of May 2018,  when the state government ordered police personnel to open fire against  a mass protest against the Sterlite copper-smelting plant in  Thoothukudi district - wh ere Kulasekarapattinam is also located.  Thirteen people were killed.

The first two launches of the SSLV - both developmental flights - are  set to happen from the SDSC in Sriharikota. The first flight is  scheduled for early 2020 (moved from November 2019 after delays due to  the Chandrayaan 2 surface mission failure  in September). Subsequent, operational flights will be moved to the  Kulasekarapattinam spaceport, and ISRO has said it would like to  transfer the SSLV programme over to private industry as well.


Note: This article originally stated that Gaganyaan missions  would be flown from the upcoming third launchpad at SDSC. It's actually a  modified version of the second launchpad. The mistake was correct on  December 1, 2019, at 5:57 pm.

 
"Были когда-то и мы рысаками!!!"

Salo

"Были когда-то и мы рысаками!!!"

Salo

"Были когда-то и мы рысаками!!!"

Старый

Извиняюсь, но это же МБР.  МХ Пискипер...  :oops: 
1. Ангара - единственный в истории мировой космонавтики случай когда новая ракета по всем параметрам хуже старой. (с) Старый Ламер
2. Всё что связано с Ангарой подчинено единственной задаче - выкачать из бюджета и распилить как можно больше денег.
3. Чем мрачнее реальность тем ярче бред.

Salo

Там первая ступень весит больше чем весь Пискипер.
"Были когда-то и мы рысаками!!!"

Старый

ЦитатаSalo написал:
Там первая ступень весит больше чем весь Пискипер.
Значит это СуперПискипер. Под индийскую массу ядерных зарядов. 
1. Ангара - единственный в истории мировой космонавтики случай когда новая ракета по всем параметрам хуже старой. (с) Старый Ламер
2. Всё что связано с Ангарой подчинено единственной задаче - выкачать из бюджета и распилить как можно больше денег.
3. Чем мрачнее реальность тем ярче бред.

Дмитрий В.

А она что? Хилее Эпсилона?
Lingua latina non penis canina

Старый

ЦитатаДмитрий В. написал:
А она что? Хилее Эпсилона?
Злые языки говорят что Эпсилон это тоже как бы... 
Индийкая правда слегка длинновата для шахтной МБР.
1. Ангара - единственный в истории мировой космонавтики случай когда новая ракета по всем параметрам хуже старой. (с) Старый Ламер
2. Всё что связано с Ангарой подчинено единственной задаче - выкачать из бюджета и распилить как можно больше денег.
3. Чем мрачнее реальность тем ярче бред.