#KERBAL CROSSFEED HOW TO#
#KERBAL CROSSFEED SERIAL#

You might also have a heat shield or some part through which supposedly no fuel can flow in between the two tanks.

#KERBAL CROSSFEED HOW TO#

Note: I have two vessels docked and have enabled advanced tweakables but I don't see how to tranfer fuel Electric flows fine but not mono or fuel Showing 1 - 11 of 11 comments.Д¬orvus View Profile View Posts. I think that covers all of them, right? Posted September 11, Home Discussions Workshop Market Broadcasts. On linux, do exactly the same thing described above. Posted September 10, On a MAC, do exactly the samething described above.

Share this post Link to post Share on other sites. How to transfer fuel in orbit Asked by glibbo. Gameplay Questions and Tutorials Search In. Note: Your post will require moderator approval before it will be visible. If you have an account, sign in now to post with your account. In fuel transfer via alt clicking, You can transfer fuel between any existing tank that is connected, regardless of crossfeed capable parts. Hi all I've been dabbling and playing the game for a while now and I've ended up with three ships docked in orbit but I cannot seem to transfer fuel from or to any of the three, I have searched this forum but to no avail, any pointers much appreciated By the way, if there is some part that doesn't support fuel crossfeed between a docking port and fuel tank, would fuel transfer work? Both tanks drain. Longer burn-times can sometimes mean less efficient burns because you can't hit your maneuver nodes that exactly, but this only matters in situations where a burn is very time-critical.Asked by glibbo. This, however, is bought with longer burn-times to get the same amount of delta-v.

An orbital transfer stage with less engine power is more efficient, only because it tends to have a lower overall mass. All that matters is to avoid having more mass than necessary (get rid of fuel tanks when they are empty). It doesn't matter how fast (through how many engines) you spend it. The amount of delta-v you get per liter of fuel depends on the total weight of the ship and the average fuel-efficiency (Isp) of the engines you use. But my general experience is that a rocket gets higher with cross-feeding.

#KERBAL CROSSFEED SERIAL#

To get back to your initial question 'what's better: serial staging or parallel crossfeed staging': It depends on your total thrust-to-weight ratio in the lower atmosphere. When you go slower than this, you are spending unnecessary fuel to fight gravity. When you go faster than this, you are wasting fuel on atmospheric drag. That speed depends on how aerodynamic your vehicle is. The ideal speed to balance atmospheric drag and gravity drag (assuming perfectly vertical ascent) is equal to the terminal velocity on the current atmospheric density. So where do these two factors cancel out? That means it might not be so good after all to go too fast while you are still in the lower atmosphere.

The faster you go, the more speed ('delta-V') you lose through air friction. The relationship with speed is quadratic. Atmospheric drag depends on atmospheric pressure and speed. For that reason it is economically to accelerate early, so you get to your orbit faster and consume less acceleration from the gravity.Д«ut there is also the second force: atmospheric drag. The more time you spend affected by gravity, the more speed ('delta-v') does the gravity give you which you have to cancel by expending additional fuel. The first, gravity, is accelerating your rocket constantly downward until you have enough horizontal velocity to cancel it (achieved a stable orbit). There are two forces which prevent your rocket from getting into orbit. To answer this question, we first need to talk about what forces affect a rocket during lift-off. Your question is actually about how fast you are going to spend the fuel of your first stage: Are you using four or five engines simultaneously to convert it into speed? When you use all 5 engines but throttle down to 80% thrust, it's exactly the same as if you would use 4 engines at 100% thrust.

Kerbal crossfeed