10 fuel tanks - efficiency challenge

[jebbe]

@dashcunning,

what was the height you had when reaching your top speed? Would be interesting to compare the specific energy!

[khyron42]

Dash, we need the screenshot.

[chaz]

@dashcunning,

what was the height you had when reaching your top speed? Would be interesting to compare the specific energy!

I had tried that but my ship kept falling over.

[dashcunning]

[jebbe]

dash, that would be 18.37 MJ/kg - quite a mark you set there...

[Godot]

Seems like I beat Don Lorenzos Altitude by a few kms

(which seems to give me an orbital specific energy of:

6,079 ^2 * 0,5 - 3530,461 / (600 + 734) ~ 15,83)

(Edit: Corrected an Error in my Formula)

[Godot]

Was able to beat my own altutude and reach 800 km by replacing the normal engine of my final stage with a gimballing engine

[Entroper]

Speed: 6472.7 m/s

Altitude: 605.23 km

Specific Orbital Energy: .5*6.4727^2 - 3530.461/(600.00 + 605.23) = 18.019

[khyron42]

It\'s amazing how people keep finding ways to do this better!

I\'ve updated the original post with the current best results.

[SteevyT]

So close....

No pictures until I do my next run though, I have a small tweak I want to make first.

18.1 KJ/kg is my best run so far. I know I can beat that though.

[SteevyT]

So close....

No pictures until I do my next run though, I have a small tweak I want to make first.

18.1 KJ/kg is my best run so far. I know I can beat that though.

Edit: Nevermind, I can\'t seem to beat 18.1, and that was supposed to just be a test run. I don\'t know what I did, but I can\'t replicate it.

My second run was 17.91 and the fourth was 17.9.

The third run crashed into the ocean.

Pictures of what I do have.

Run 2:

Run 3:

[Deadly crash into ocean due to lack of control not shown]

Run 4:

Wow, how did I not realize I clicked quote?

[Darkshadow]

Here is my craft the DI-010-Challenger:

Made it to 408km at burnout from flying directly upwards. Removing the parachute and decoupler would probably help even more...

In the VAB

just before burnout

[StelarCF]

I\'ve managed ~9000 m/s in solar orbit at kerbin\'s altitude. In Kerbin orbit it was ~3300 m/s

[Godot]

I\'ve managed ~9000 m/s in solar orbit at kerbin\'s altitude. In Kerbin orbit it was ~3300 m/s

But I doubt that this was with just 10 fueltanks and during the time that the engine was still active