Actually, the real winner here is that crazy cannon. Doing a quick conversion we find that the initial velocity of the jet after being accelerated through 130 ft of cannon is 2380.4m/s. Now 130ft = 39.6m so using
a = v**2/(2*x)
with x = 39.6m and v = 2380.4 m/s we find
a = 71,544m/s**2 . With g = 9.8 m/s**2 this means
a = 7300.4 g.
After being ejected the average velocity over the next 30ms is 2641.6m/s. Doing more calculations like the one above (assuming constant acceleration) gives a max velocity of 2902.8m/s which tells us that while the scramjet is operating the acceleration is a puny 1776 g. (a U.S. funded project produces the number 1776. Coincidence? I think not...)
So, I guess that 10,000g number occured sometime in the cannon (acceleration cant be uniform there). Personally, I find 1776g acceleration from an engine to be completely amazing...
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Actually, the real winner here is that crazy cannon. Doing a quick conversion we find that the initial velocity of the jet after being accelerated through 130 ft of cannon is 2380.4m/s. Now 130ft = 39.6m so using a = v**2/(2*x) with x = 39.6m and v = 2380.4 m/s we find a = 71,544m/s**2 . With g = 9.8 m/s**2 this means a = 7300.4 g. After being ejected the average velocity over the next 30ms is 2641.6m/s. Doing more calculations like the one above (assuming constant acceleration) gives a max velocity of 2902.8m/s which tells us that while the scramjet is operating the acceleration is a puny 1776 g. (a U.S. funded project produces the number 1776. Coincidence? I think not...) So, I guess that 10,000g number occured sometime in the cannon (acceleration cant be uniform there). Personally, I find 1776g acceleration from an engine to be completely amazing...