Can't feed fuel to the engines

[Fithian]

Hi Guys.

Mostly lurk here as there's usually an answer to every question I've had up until now. But alas, I need ye help!

Pre V25 my lunar (munar) rover worked fine. Now in the new release the four rear engines won't fire due to lack of fuel.

As you can see I've tried to feed fuel from Engine > Engine and from Tank > Engine, but the status is still, no oxidiser.

Bug? or am I doing something wrong?

[Tortoise]

From what I can see, your fuel line on the far right is going from the engine to the tank instead of the tank to the engine.

And this is the wrong section btw.

Cheers!

EDIT: Also looks like theres no fuel line from the far right engine to the middle one, therefore no fuel flow.

And the thread has been moved btw.

Edited July 20, 2014 by Tortoise

[Random Tank]

Yeah, Tortoise got it right, your fuel lines are the wrong way round. The little arrows on the Fuel Lines indicate where the fuel is going to, so if you want fuel going into the engines you have to have the arrows pointing towards those engines.

[Rhomphaia]

What is between the fuel tank and the science lab? I'm thinking some kind of decoupler/seperator

Guessing that part no longer has crossfeed, as otherwise everything should work without fuel lines.

[Fithian]

What is between the fuel tank and the science lab? I'm thinking some kind of decoupler/seperator

Guessing that part no longer has crossfeed, as otherwise everything should work without fuel lines.

What an idiot, so embarrassed now ><

That's a stack decoupler. I can land the whole thing with parachutes, but it still comes down pretty quick. If it got a bit hairy I was going to dump the fuel can.

I wanted to try and recover the lot if possible.

[Alshain]

What an idiot, so embarrassed now ><

That's a stack decoupler. I can land the whole thing with parachutes, but it still comes down pretty quick. If it got a bit hairy I was going to dump the fuel can.

I wanted to try and recover the lot if possible.

If you have fuel left, just fire the engines to slow it down.

[Fithian]

If you have fuel left, just fire the engines to slow it down.

Yeah, that was the plan too, but there was an imbalance, so you had to keep fine tuning the thrusters.

In the second revision I solved it by using the half cans at either end of the lab.

Worked perfectly and landed back home without chutes.

[SRV Ron]

This lander needs a redesign. Rather then fixing the fuel lines, you should have a fuel can for each pair of engines and have them attached to them. Otherwise, you are headed for major center of gravity issues as the single fuel can gets used up.

[Laie]

This lander needs a redesign. Rather then fixing the fuel lines, you should have a fuel can for each pair of engines and have them attached to them. Otherwise, you are headed for major center of gravity issues as the single fuel can gets used up.

Or use two 16-unit tanks, one before the lab and one behind it. You don't need it to be 100% balanced -- and if you have thrusters for the last few seconds, you don't need many parachutes either. Just one chute at either end and the thing shouldn't be more than 30° off from the horizontal and no faster than 18m/s. That's good enough, a spoonful of fuel will care about the rest.

(you may also need one drogue chute to deploy first, lest the others rip off).