ggPeti

But can you efficiently lift off with it on the lowest possible trust? That is the question. @OP: 25% trust means not 12.5, but 6.125% fuel consumption.

http://kerbalspaceprogram.com/forum/showthread.php/16520-Reach-the-Speed-of-Light%21-%28Read-desc%29 It's on the first page on this forum. Read before you post. Btw it's nigh impossible even with modified parts.

Never mind, it landed. Got 6.3 million meters, which is mindblowing. Should I upload pictures, or does such a lucky flight not count?

I blew up a launch but a single advanced canard got shot out to outerspace, now it seems to be bouncing on atmosphere forever. What is the circumference of Kerbin along a straight line?

How are things developing, EndlessWaves?

The most efficient way is to never lift off. You're already orbiting the Sun

It's not a requirement to have a manned vessel, so here's my entry. It was an accident, but hey, I was following The Path of Jeb: more boosters. 523,5 m/s at 47m, so 429,5 is my score.

I didn't invent this craft by the way, here's the post I copied it from: http://kerbalspaceprogram.com/forum/showthread.php/12266-Get-a-plane-into-space?p=181462&viewfull=1#post181462 But I did find out how to push it over 1800 m/s, which is not trivial

you never even showed the slightest sign of trying your own challenge yourself, so that\'s not very hard to believe. also, 'couldn\'t of' means naught.

That is completely false. This is not how you calculate delta-v. Stop spreading misinformation please.

I\'m pretty sure it has a surface, I crashed into it several times. It\'s just not visible.

How does sundiving help escaping in the first place?

But it is very irregular, its almost spherical shape is due to ice filling up the deep parts. And whatever kind of ice it is, it\'s very amorphous so it relaxes into a sphere easily.

(also worth mentioning that you\'d have to imagine some serious life support mechanism aboard the ship and a habitable destination if you\'d want interstellar flight to qualify as survivable, but it\'s still a whole lot more credible that they can survive it than crashing into the surface of a giant thermonuclear sphere at several kilometers a second)