Realism Overhaul: some engines allways report 'feed pressure too low'

[CitizenVeen]

Hey everyone,

I have some trouble in Realism Overhaul, some engines will allways report 'feed pressure too low' no matter what I do, even if I am excelerating fast, spinning, stable, even when starting stable on the launch pad (gravity should pull the fluids down I assumed?). I can't get the AJ10 or the aerobee to fire in wathever circustances. I have no clue why this is...

On those engines it says Status: Flame-out! right from the launch on. Even before I decoupled the Launch Stabelizer Enhanchers.

Any tips?

Edited December 23, 2015 by CitizenVeen

[NathanKell]

If the part tooltip says the engine is pressure fed, its propellants must be put in tank(s) of type ServiceModule or Fuselage (those are the Highly Pressurized tank types). Either use proc parts and change the type from Default to one of them, or use stock RCS tanks which start out type ServiceModule.

If you're ever in doubt, right-click on a placed tank. It will say if it is, or is not, highly pressurized.

[CitizenVeen]

Thank you sir, that solved it!

[katjap]

I have the same problem.

My craft is 3 parts. Sounding Rocket Telemetry->Procedural Tank->Aerobee Engine

The tank is set to type Fuselage, but the motor always says feed pressure too low.

 

[katjap]

Nevermind I found the problem! I needed to click on the button next to where it was describing the fuel type in order to fill the tank!

[NathanKell]

That engine is pressure-fed. That means you need a highly pressurized tank for it. Right-click on the tank and ensure Highly-Pressurized is set to true. If not, switch tank type until it is, and _then_ fill the tank.

[Perry Apsis]

Gah!

30km above the surface of the Moon was not the place to discover this.