Aluminum is magnitudes cheaper than Inconel. And since volume is cubic, and pric... | Hacker News

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quartesixte 9 months ago | parent | context | favorite | on: Building a rocket engine from scratch

Aluminum is magnitudes cheaper than Inconel. And since volume is cubic, and pricing mostly on based on powder weight, you are about an order of magnitude or two off for the size of engine ABL is producing here.

avmich 9 months ago | [–]

That's correct, but it's still interesting that you have that opportunity to shave - slash? - costs here.

And also the other engine mentioned isn't an aluminum one.

aaronblohowiak 9 months ago | [–]

Would $100,000 still be a “steal” for all that? (Especially with repeatability and nimbleness) ?

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