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Questions tagged [hllv]

Questions about Heavy Lift Launch Vehicles (HLLV) that are capable of lifting payloads of between 20 to 50 metric tons to Low-Earth Orbit (LEO).

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Launch Vehicle LM2D

As it is well known, the circularization of orbits needs at least 3 stages. How could the Chinese launch vehicle LM2D circularizes its orbit with only 2 stages?
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2answers
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Did the N-1 have future plans, like the Apollo Applications Program?

The Saturn-V booster was only really used for two types of missions. Lunar Skylab (ASTP used a Saturn-1B booster) That is, heavy lift to lunar orbit, and heavy lift with a space craft. There ...
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109 views

What uncrewed interplanetary exploration probes have launched on heavy/superheavy-lift vehicles?

What uncrewed interplanetary probes have launched on heavy/superheavy-lift rockets? I'm using NASA's definitions of heavy and super-heavy vehicles; heavy-lift is 20-50 metric tons to LEO, super-heavy ...
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Couldn't the shuttle orbiter be replaced with a cargo bay, instead of creating the SLS?

Are there any technical reasons for not simply continuing the space shuttle production, except for replacing the orbiter with a pretty simple cargo bay (a payload fairing)? Like the Russians planned ...
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1answer
186 views

What are the tradeoffs of docking multiple small launches in orbit vs a single heavy launch?

What are the benefits of having a heavy lift launch vehicle, compared to using several smaller launches and assemble the spacecraft in orbit? There must've been more than a hundred successful ...
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2answers
1k views

What eventually killed the Augustine Commission Report Option 4B, Directly Shuttle-Derived Heavy-Lift Launch Vehicle, a.k.a. DIRECT?

Before the Space Shuttle retirement, there was a huge pressure on NASA, U.S. Administration, and everyone else directly involved in U.S. human space exploration using Heavy-Lift Launch Vehicle (HLLV) ...
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3answers
590 views

What's the advantage of using an SLS system rather than a number of small lift rockets?

I just read this article, in which former director Kraft is described as deriding NASA's current plan to use a single heavy-lift vehicle (Space Launch System, or SLS) as a primary launch platform. Why ...
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4answers
3k views

What will be NASA's successor to the Saturn V rocket?

The Saturn V rockets were the "tallest, heaviest, and most powerful rocket ever brought to operational status and still holds the record for heaviest payload launched and heaviest payload capacity to ...