Johnster_Space_Program

My First SRB To Orbit Rocket!

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So today I made my first SRB Only to Orbit Rocket! It can get into orbit with some fuel remaining to attempt a Trans-Munar Injection, but I wasn't able too.

Here is a video on the craft and if you want to download it there will be a link below:

https://kerbalx.com/JohnsterSpaceProgram/SRB-To-Orbit-Rocket

Here are images of some prototypes of the final design:

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And here is the final design:

yYjLqwc.png

Have you made an only SRB Rocket that can get into orbit yet? If so, tell me below and post some images of it! :cool:

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I have!  The real trick is getting something to orbit using ONLY Sepratrons.  I got pretty far with getting an Mk1 pod up once, but things started getting weird once I was lighting a couple hundred of the things at once.

 

BTW your rockets will go together a lot nicer if you turn on angle snap.  It's the one green.

62screenshot373.png

When it's a hexagon instead of a circle, everything snaps all nice, and you won't get your radially attached parts being attached at a slight off angle like you have there.

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37 minutes ago, Geonovast said:

I have!  The real trick is getting something to orbit using ONLY Sepratrons.  I got pretty far with getting an Mk1 pod up once, but things started getting weird once I was lighting a couple hundred of the things at once.

 

BTW your rockets will go together a lot nicer if you turn on angle snap.  It's the one green.

62screenshot373.png

When it's a hexagon instead of a circle, everything snaps all nice, and you won't get your radially attached parts being attached at a slight off angle like you have there.

ok, thanks! I will use it next time for the sepratrons on the orbiter stage.

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A long time ago in KSP 1.1.0, Valentina used a single Kickback SRB to get to LKO...

Spoiler

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The launch vehicle uses only a single fully fueled Kickback SRB

lFaBgb5.png

At the end of the ride, Valentina was in a 171x78km orbit.

Full album: https://imgur.com/a/7Q0pt (not sure if this works anymore, imgur seems to have killed the albums feature since yesterday.)

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On 1/30/2019 at 10:23 PM, PaperAviator said:

so thats why I can't make an album anymore..

It looks like they've renamed them to "posts" and tweaked the UI a bit, but you can still create new albums via the "New Post" button in the top bar. Here's one I just made as a test.

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Here is my SRB only "Smart Powder" Mun Rocket. 43 tons at launch, with 1 kickback, 2 thumpers and 44 separatrons.

Hammer and Flea must be avoided at all cost as they have poor TWR and poor ISP.

 

Spoiler

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It's a cool and fun challenge (there is a lowest mass SRB Mun challenge thread somewhere). Try it.

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12 hours ago, Muetdhiver said:

It's a cool and fun challenge (there is a lowest mass SRB Mun challenge thread somewhere). Try it.

Also, here's an "SRBs to orbit" challenge from the micro-challenges thread, with an optional extra challenge to rendezvous and dock two vessels in orbit using SRBs only.

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SRB docking seems extra hard. I'll give it a thought. 

I will try separators only to orbit. That will be fun. Their isp is crap but their dry mass is outstanding.

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This was way back in 0.90 but I was using FAR.

It didn't actually get orbit on SRBs only, but based on the numbers it easily could have. I wasn't going for orbit, though. I was going for Mun. :)

Actually, now that I've watched your video (and read your post :P )I see that you too were Mun bound.

If I may critique, I found that my method (start big) is much more mass efficient.

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I can't find the images, but I once landed a small probe on the mun for an SRB only challenge, and I've sent several probes into kerbolar orbit using SRB stacks.

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