Jump to content

Nuclear Engines produce no thrust


Recommended Posts

Hello.

Nuclear engines on my SSTO produce no thrust, while using fuel in vacuum. In atmosphere it works fine. I understand the low TWR, and it's my second flight with this issue. Right clicking the engine shows regular parameters, ISP, thrust, fuel usage. Technicly they are fine, but not phisically. (IDK how to spell that). Hope you'll help me!

Have a nice day!

Link to comment
Share on other sites

  On 6/13/2019 at 3:02 PM, FinioM said:

Hello.

Nuclear engines on my SSTO produce no thrust, while using fuel in vacuum. In atmosphere it works fine. I understand the low TWR, and it's my second flight with this issue. Right clicking the engine shows regular parameters, ISP, thrust, fuel usage. Technicly they are fine, but not phisically. (IDK how to spell that). Hope you'll help me!

Have a nice day!

Expand  

Do you have something placed beneath the nozzle, blocking the thrust?

Link to comment
Share on other sites

Can you post a clear picture (ie properly lit, from an angle that shows the motor) of the craft? You did a good job in providing essential information (it’s using propellant, it works in atmo) but having a picture would reduce the guesswork significantly.

Link to comment
Share on other sites

  On 6/13/2019 at 4:47 PM, Kerbart said:

Can you post a clear picture (ie properly lit, from an angle that shows the motor) of the craft? You did a good job in providing essential information (it’s using propellant, it works in atmo) but having a picture would reduce the guesswork significantly.

Expand  

Thanks for replying! I hope this image is ok. Here is a link, it wouldn't let me insert an url. https://imgur.com/fIAVmzm

Link to comment
Share on other sites

TWR maybe a little to low. Because I know that if your TWR is off it can cause problems. Plus Nuclear Engines have A REALLY LOW TWR

Link to comment
Share on other sites

  On 6/13/2019 at 8:00 PM, FinioM said:

Thanks for replying! I hope this image is ok. Here is a link, it wouldn't let me insert an url. https://imgur.com/fIAVmzm

Expand  

Your engines are blocked by the rest of your ship.  The thrust is essentially hitting your ship and pushing it the opposite way with the same amount of force.

Link to comment
Share on other sites

Looking at the ship it looks like what others are telling you that the thrust is blocked. BAUT I learned this trick from @Matt Lowne. Just put your engines somewhere and offset them somewhere else. KSP weirdly doesn't take psychics on where the places are but where they were placed :/

Link to comment
Share on other sites

  On 6/14/2019 at 1:17 AM, The Doodling Astronaut said:

Looking at the ship it looks like what others are telling you that the thrust is blocked. BAUT I learned this trick from @Matt Lowne. Just put your engines somewhere and offset them somewhere else. KSP weirdly doesn't take psychics on where the places are but where they were placed :/

Expand  

I tried fixing it, but it didn't work. I don't think that thrust is blocked, as it works in the atmosphere, but only when it's on the bottom of staging tab. I also have sufficient TWR, fuel, but no burn time. I mean, how can it be blocked in vacuum, and not in the atmosphere? Have some screens:

 https://imgur.com/DQViMgJ

https://imgur.com/FHrrCdY

https://imgur.com/3lWAZYk

Link to comment
Share on other sites

  On 6/14/2019 at 6:29 AM, FinioM said:

I tried fixing it, but it didn't work. I don't think that thrust is blocked, as it works in the atmosphere, but only when it's on the bottom of staging tab. I also have sufficient TWR, fuel, but no burn time. I mean, how can it be blocked in vacuum, and not in the atmosphere? Have some screens:

 https://imgur.com/DQViMgJ

https://imgur.com/FHrrCdY

https://imgur.com/3lWAZYk

Expand  

Update: this rocket works https://imgur.com/BAfZOzV

In Spaceplane Hangar nuclears have no thrust, because RAPIERs will use all liquid fuel first. I switch the calculator to vacuum - still no thrust. But when i move them to the bottom stage everything works, but only in SH, not in flight. Meanwhile my space station module has it's thrust unaffected. I tried launching without the module, still nuclears don't thrust. 

Link to comment
Share on other sites

  On 6/14/2019 at 6:50 AM, FinioM said:

Update: this rocket works https://imgur.com/BAfZOzV

In Spaceplane Hangar nuclears have no thrust, because RAPIERs will use all liquid fuel first. I switch the calculator to vacuum - still no thrust. But when i move them to the bottom stage everything works, but only in SH, not in flight. Meanwhile my space station module has it's thrust unaffected. I tried launching without the module, still nuclears don't thrust. 

Expand  

Engines don't work in atmosphere. The runway is just a little sloped. I think they are blocked. I will rebulid the ship. I'll keep you updated.

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.

×
×
  • Create New...