Sunday, July 4, 2010

ISRO Heavy Lift Vehicle

A slide for Dr. B N Suresh's presentation titled 'Indian Space Transportation System: Present Scenario and Future Directions' at TIFR-Mumbai, 19th June 2009 Credit:ISRO

In an earlier post Super Nova had reported on the preliminary concept of an Indian Lunar manned mission presented at IAC-2009. That concept envisaged the development of a crew launch vehicle and a Cargo Launch Vehicle with payload capabilities of 31 and 84 tons respectively to Low Earth Orbit.

The above image shows another concept Heavy Lift Vehicle (HLV) which would be able to haul 100 tons to LEO. What is interesting in this architecture is that no solid stages would be used on the vehicle. 4 SC460 Semi-cryogenic boosters with the SC800 first stage would generate the lift-off thrust for the vehicle. The C100 upper stage would probably serve as an Earth Departure stage (EDS) .

In addition to the HLV, the presentation slide also gives us an idea of the role that the GSLV-Mk III would play in lead up to Lunar manned mission and more importantly in the Indian Human Spaceflight Program.

As we know the present Human Spaceflight concept envisages the development of a crew capsule (Orbital Vehicle) which would be launched by the GSLV-Mk II. This capsule would probably not feature any docking system due to restriction in the payload capacity of GSLV-Mk II (around 5 tons).

Given the greater capability of Mk-III, ISRO plans to use the vehicle to launch a bigger, better equipped crew capsule which would be use to demonstrate rendezvous and docking in addition Extra Vehicular Activity (EVA).

38 comments:

  1. Would this be all-indigenous technology, or would it be dependent upon buying critical components from abroad?

    What are the suggested timelines for these mission activities?

    What kind of budgetary outlay would be required to accomplish these goals?

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  2. They even didn't fully tested the Cryogenic Engine at! We can expect this in 2025!

    ReplyDelete
  3. What is the significance of the fact that the 460t semi-cryo upper stage is the same weight as the 460t semi-cryo boosters?

    Is there a specific reason for this? Are they meant to use common engines or components? The boosters are operating closer to sea-level, whereas the upper stage is operating at higher altitude - so wouldn't their engines most likely be different? In which case, what is the basis for commonality of components between boosters and upper stage?

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  4. On page 105 of ELEVENTH FIVE YEAR PLAN PROPOSALS
    there is mention of a 600 KN heavy cryo engine. Has any progress been made on that?

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