I have been working on a 2-stage Falcon 9 style auto reuse for more than a month now. It is finally done!
The JSO Sparrow 1
The JSO Sparrow 1 is the first rocket in the Sparrow series. It is fully automatic, and the first stage is reusable. The Sparrow 1 can not carry any payload. The Sparrow 2 is in progress, and will be bigger and have an improved code fit for carrying payloads. The Sparrow 2 will also be able to carry the Phoenix 2.2 Crew Capsule into orbit.
How to Use the JSO Sparrow 1
Just launch from the launch pad in the stock system and press 1 when the command chip asks for an input. After that the Sparrow 1 will do everything on it’s own, until after stage 1 lands. Then, the code will prompt you to activate AG 1. After you do that, the craft will finish everything on it’s own.
Notes:
- There are still many bugs. Please tell me if anything does not work right.
- Every once in a while the first stage will run out of fuel before landing
- This was made and tested on high settings, I do not know how it works on other settings
Edit:
A bug was found. Unlisted fixed version
GENERAL INFO
- Predecessor: JSO Phoenix Crew lift v1.1
- Created On: iOS
- Game Version: 0.9.509.0
- Price: $13,765k
- Number of Parts: 127
- Dimensions: 55 m x 5 m x 5 m
PERFORMANCE
- Total Delta V: 5.0km/s
- Total Thrust: 3.0MN
- Engines: 8
- Wet Mass: 1.86E+5kg
- Dry Mass: 20,732kg
STAGES
| Stage | Engines | Delta V | Thrust | Burn | Mass |
|---|---|---|---|---|---|
| 1 | 7 | 5.0km/s | 2.5MN | 3.0m | 1.86E+5kg |
| 3 | 0 | 0m/s | 0N | 0s | 1.7E+5kg |
20 Comments
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3,679 JSO184.4 years ago
@Tweedle_Aerospace great! The Sparrow 1 still has bugs, so things like that will happen sometimes.
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4,813 TweedleAerospace4.4 years ago
@JSO18 makes sense. I am glad that it is working as it is expected to now though!
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3,679 JSO184.4 years ago
@Tweedle_Aerospace yeah when it is out of fuel or has too much fuel it will want to start the landing burn at a negative number. It calculates the burn using TWR, so when TWR is too low it goes into negative. (It thinks TWR is 0 when fuel is 0)
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4,813 TweedleAerospace4.4 years ago
@JSO18 now it worked on the old version. Same settings and normal speed.
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4,813 TweedleAerospace4.4 years ago
@JSO18 this last time I used the old one it wanted to start the landing burn negative 1000 meters. It was out of fuel so it didn’t have a chance either way.
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3,679 JSO184.4 years ago
@Tweedle_Aerospace that is very weird, since the only edit I made was not going into fast forward after stage separation.
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4,813 TweedleAerospace4.4 years ago
@JSO18 yep I am on the Juno system. It worked the second time though. I used the 1.5
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3,679 JSO184.4 years ago
@Tweedle_Aerospace were you playing on the stock system? I am pretty sure the landing code should work on all systems, but that is the only other thing I can think of.
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3,679 JSO184.4 years ago
@Tweedle_Aerospace that is very weird. I have had it run out of fuel 100 meters above the ground and hit the ground too hard, but every time it has enough fuel, it lands correctly for me.
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4,813 TweedleAerospace4.4 years ago
@JSO18 it was on normal speed. I have high quality with part lift forces on. Like I said; it started burning at the correct height. It just didn’t have enough throttle I think. Weird you didn’t have that happen.
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3,679 JSO184.4 years ago
@kittman Thanks! It could be a while before Sparrow 2 is ready though, since I have to design the rocket and then make edits to the code to work with the new design.
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4,265 kittman4.4 years ago
looking good, dude! 😁
Can't wait to see Sparrow 2 with the Phoenix sitting on top... -
3,679 JSO184.4 years ago
@Tweedle_Aerospace I put a link to the fixed version in the craft description.
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3,679 JSO184.4 years ago
@Tweedle_Aerospace I think sometimes it goes into fast forward after stage separation. I will try to release new rocket (maybe Sparrow 1.5) that will have some bug fixes and maybe a launch pad.
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3,679 JSO184.4 years ago
@Tweedle_Aerospace that has never happened to me. Did it run out of fuel? Were you in fast forward? What settings were you playing on?
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4,813 TweedleAerospace4.4 years ago
Well it exploded. It hit the ground at 125 m/s. It started the burn at the correct height but then it had to low throttle.
@JSO18 yea, but even some of the most reliable kinds of these fail sometime or have bugs.