Jump to content

How does KerbalEnginer/Mechjeb calculate deltaV for mixed massless/massed propellant engines?


MatterBeam
 Share

Recommended Posts

Hi.

While designing an engine mod, often I've had the idea of creating an engine that uses a regular propellant (liquid fuel, intakeAir) alongside a massless 'propellant', such as ElectricCharge.

How do Mechjeb or KerbalEngineer calculate deltaV in that case?

Is there a workaround if they can't?

Is there a way to create some sort of Generator module with its consumption of a massless resource tied to that of the propellant flow, outside of an Engine module that Mechjeb/Kerbal Engineer reads?

Link to comment
Share on other sites

Propellant, by definition, has mass. However, as a "fuel" (energy provider) it can certainly exist. So I assume what you mean to ask is: how do MJ/KER account for the amount of electricity available to provide for propulsion? So if you only propellant for 5 minutes of burn time, but only electric charge for 2 minutes, the amount of DV available would be, say, 200 m/s and not 500 m/s?

I don't write mods but I suspect inspecting the available charge in the batteries will go a long way.

Link to comment
Share on other sites

This thread is quite old. Please consider starting a new thread rather than reviving this one.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...