Auto Credit Based on JSO18's Sparrow 3 V0.8

JSO Sparrow 3

The Sparrow 3 is a reuseable and automatic heavy lift launcher by JSO. The booster returns to the launch site to be caught by the launch tower after sending the upper stage to space, where it will continue flying to orbit.

To use

Launch from any launch pad and raise the throttle. The craft will do the rest.

Improvements from the last version

  • Completley new ascent and landing programs with higher efficiency, acuracy, and consistency than the previous programs
  • Launch tower/booster catch tower
  • Tweaks to the old programs that are still being used

    Features to come in the next versions

Note: none of these are guranteed, just goals that I have
  • The tower will either set down to dock to the booster after it lands to prevent it from clipping through the tower after switching away
  • Orbit customizability: ex. Orbit height, inclination, etc.
  • Better reliability: while testing, I noticed that every once in a while, the booster misses the tower or hits it and blows up.

GENERAL INFO

  • Predecessor: Sparrow 3 V0.8
  • Created On: Windows
  • Game Version: 0.9.704.0
  • Price: $84,469k
  • Number of Parts: 763
  • Dimensions: 109 m x 9 m x 9 m

PERFORMANCE

  • Total Delta V: 4.1km/s
  • Total Thrust: 18.9MN
  • Engines: 9
  • Wet Mass: 6.41E+6kg
  • Dry Mass: 3.19E+5kg

STAGES

Stage Engines Delta V Thrust Burn Mass
1 7 3.7km/s 16.2MN 2.8m 1.27E+6kg
3 2 376m/s 2.7MN 2.8m 1.27E+6kg

Comments

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  • Profile image

    Update broke stage separation

    4 months ago
  • Profile image
    100 Bishobe

    @JSO18 I figured it out, I had stock engine overhaul on

    +1 8 months ago
  • Profile image
    3,614 JSO18

    @Bishobe I haven’t really played the game in a few months, and sorry for the long wait for a response. I don’t really know what the problem is but my best guess would be that maybe the new update changed the weight of fuel? Check the weight of the fuel tank on top, and try making it a little smaller. I am sorry I don’t have a better response, I haven’t played the game in a while and I don’t have time to find out what the problem is right now.

    +1 8 months ago
  • Profile image
    100 Bishobe

    when i try to launch the unmodified craft it tells me the payload is too heavy

    8 months ago
  • Profile image
    3,614 JSO18

    @W4RP Thanks!

    one year ago
  • Profile image
    1,964 W4RP

    @JSO18 I’m also part of the IAAR and I say with pride that this has to be the best reusable booster I’ve seen

    +1 one year ago
  • Profile image
    3,614 JSO18

    @Profighter159 The only other thing I could think of that would affect the stage separation so drastically would be frame rate. Was your frame rate low during the separation? Sometimes with low frame rates the calculations do not happen often enough and random unintended things can happen.

    one year ago
  • Profile image

    @JSO18 It was on high physics, I'll see if I can experiment with different settings to find a cause.

    one year ago
  • Profile image
    3,614 JSO18

    @Profighter159 thanks for the feedback, I will try to fix that for the next version. Until then, try running it on high physics settings if it was not already on high physics.

    one year ago
  • Profile image

    There seems to be a problem for me when MECO happens where the 2 crafts aren't separated enough, do a little dance and an engine on the second stage is busted, leaving the craft dancing and super-high speeds and the first stage crashing because it isn't triggering the switch.

    one year ago
  • Profile image
    3,614 JSO18

    @xXFrankyJoeXx You did nothing wrong, the program is just not perfect, so it does not work 100% of the time. I am working on better consistency for the next version.

    one year ago
  • Profile image
    3,614 JSO18

    @GLaDOSpOrtal22 thanks!

    one year ago
  • Profile image

    I don’t know what i did wrong but not only did the tower explode and the rocket, but I switched to the second stage and it fell out of orbit and exploded

    one year ago
  • Profile image

    Nice recreation of the SpaceX tower rocket catching mechanism for Starship’s Super Heavy Booster!

    one year ago
  • Profile image
    3,614 JSO18

    @KellyNyanbinary Thanks for the tips, and the circularization is a very old program of mine because I have never really cared that much about it, and I put all of my effort into the booster program. Hopefully eventually I will have a better circularization program.

    one year ago
  • Profile image

    The booster catch is very cool. It's unfortunate SR2 despawned it. Circularization on the other hand took forever.

    Also, the booster exhaust pressure is much higher than ambient sea level pressure, maybe lower that?

    1.1 years ago
  • Profile image
    1,964 W4RP

    ah ok thanks

    1.1 years ago
  • Profile image
    3,614 JSO18

    @W4RP I don't really know what is happening, but try a few more times, and make sure part lift forces is on

    1.1 years ago
  • Profile image
    1,964 W4RP

    this seems to be a me problem but the booster doesnt get caught for me

    1.1 years ago
  • Profile image
    2,149 ISX

    @TerTech Our contract will ended after Eagle launch ASRS X-5 (MC-3). We thinking not gonna continue the contract.

    1.1 years ago
  • Profile image
    3,000 TerTech

    Woah, nice catch! I have seen how reliable your rocket is and how it can drive down the cost of spaceflight. I would like you to join the Atmospheric Satellite Reconnaissance System program. @ISX and @RocketScienceCo are launching too, with @ISX launching on @iSpace and @AshtvinayakAerospace launchers and @RocketScienceCo launching on their in house launch vehicles. Join now!

    https://www.simplerockets.com/Forums/View/133385/TerTech-announces-ASRS

    1.1 years ago
  • Profile image
    3,614 JSO18

    @Vedhaspace Thanks!

    1.1 years ago
  • Profile image
    13.3k Vedhaspace

    Very cool

    1.1 years ago
  • Profile image
    1,713 DrexxVolv

    @ChaoticGraviton Exactly my life.

    1.1 years ago
  • Profile image
    1.1 years ago
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