NASA Approves Production of Most Powerful Rocket Ever

As reported by the Sydney Morning Herald, NASA has given a green light to the production of a new motor, dubbed the Space Launch System, intended to enable deep space exploration. Boeing, prime contractor on the rocket, announced on Wednesday that it had completed a critical design review and finalized a $US2.8-billion contract with NASA. The last time the space agency made such an assessment of a deep-space rocket was the mighty Saturn V, which took astronauts to the moon. ... Space Launch System's design called for the integration of existing hardware, spurring criticism that it's a "Frankenstein rocket," with much of it assembled from already developed technology. For instance, its two rocket boosters are advanced versions of the Space Shuttle boosters, and a cryogenic propulsion stage is based on the motor of a rocket often used by the Air Force. The Space Frontier Foundation, an advocacy group and frequent NASA critic, said Space Launch System was "built from rotting remnants of left over congressional pork. And its budgetary footprints will stamp out all the missions it is supposed to carry, kill our astronaut program and destroy science and technology projects throughout NASA."

Comments

I dont see a problem here

[ganjadude]

. Space Launch System's design called for the integration of existing hardware, spurring criticism that it's a "Frankenstein rocket," with much of it assembled from already developed technology.

I would much rather them use existing tried tech and incrementally advance them rather than try a radical new design. A new design would take extra years of testing before it is ready for use but if we can tweak existing tech, and make it useful for deep space why not??

Based on the next sentence it tells me that they are more concerned with bringing home the bacon than making progress in space.

Re:I dont see a problem here

[Charliemopps]

. Space Launch System's design called for the integration of existing hardware, spurring criticism that it's a "Frankenstein rocket," with much of it assembled from already developed technology.

I would much rather them use existing tried tech and incrementally advance them rather than try a radical new design. A new design would take extra years of testing before it is ready for use but if we can tweak existing tech, and make it useful for deep space why not??

  Based on the next sentence it tells me that they are more concerned with bringing home the bacon than making progress in space.

It's the standard problem when you're a tech. The client likes to give you a solution and ask you to build it, rather than give you a problem and ask you to solve it.

If their goal is to save money, then state that in the requirements. If you want it to work with existing tech, then state that. By instead putting what you think the solution is directly into the requirements you're not only limiting your techs ability to solve the problem, you're also hiding your true goals from them. That tech probably has far better solutions for that problem than you could possibly think of so let them work on it.

Better requirements would be:
We want to go to mars for less than $20 billion.

Short, simple, Let the technical experts run with that.

Re:I dont see a problem here

[cheesybagel]

This summary is a load of bull. As is the article. Production of a new motor my ass. The SLS is supposed to use 4 RS-25 Space Shuttle Main Engines in the center core, of which there are 15 and parts of another in stock, and two 5 segment Solid Rocket Boosters similar to those of the Space Shuttle. The second stage is based on a Delta IV EELV second stage using the RL-10. What is 'new' here in terms of propulsion? They are adding another segment to the SRBs. Whoopie do.

Get this: SLS is predicted to cost as much as the Space Shuttle did per year, but it will launch once every 2-3 years instead of 4 times a year like the Space Shuttle. If you do the math they have RS-25 engines for 3-4 flights. SLS is expendable remember? The production assembly line for RS-25 has been closed years ago. So if they want to fly more than 3-4 flights with it they will probably have to design a new engine which will take like 5 years to do. At best. The whole thing is sheer nonsense.

Re: i dont see a problem here

[FatLittleMonkey]

Falcon 9 has a payload capicity of 13,150 Kg to LEO.

He said "Falcon 9 Heavy" (the original name of the Falcon Heavy). So 50,000kg to LEO, should fly in the next year or two, and cost less than $100m per launch (say $150m with a "NASA paperwork tax".)

SLS is to have a payload capacity of 130,000 Kg to LEO.

SLS Block "zero" will lift around 60,000kg, and may fly in 2017 or 2018. Development will have cost $10-12 billion from now 'til then. It won't be able to lift Orion (which won't be ready anyway).

Block I is meant to loft 70,000 kg to LEO, flying in 2021 at the earliest. Development will have cost $21 billion from now 'til then. It will be able to lift Orion, but only for 14 day missions around the moon and back.

Block IA is meant to lift 105,000kg, some time in the mid-2020's. And Block II, the one you are talking about, with 130,000kg to LEO, by 2032. Development will have cost over $50 billion from now 'til then.

That doesn't include any other hardware, nor any launch or mission costs. Just development.