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UPDATE: Fixed issue with departure timing from Tydos to inner planets.

This craft has a Vizzy program that will automatically execute an interplanetary Hohmann Transfer with a single burn. To use it start from an approximately circular orbit with an inclination of zero degrees around your starting planet. Then set the planet of your choice as your target (it can be an inner or outer planet relative to your starting planet). Once this is done the program will determine the necessary planetary alignment and time warp to that point, it will then determine the ideal
position around the current planet for the departure burn and time warp to that point, and finally it will execute the necessary burn to acheive a hyperbolic trajectory that will result in the Hohmann Transfer.

Note: This flight program is designed for circular planetary orbits. Which means for now it will only work with the Circulo System

GENERAL INFO

  • Created On: Mac
  • Game Version: 0.9.306.0
  • Price: $951k
  • Number of Parts: 36
  • Dimensions: 11 m x 3 m x 3 m

PERFORMANCE

  • Total Delta V: 3.0km/s
  • Total Thrust: 83kN
  • Engines: 1
  • Wet Mass: 8,280kg
  • Dry Mass: 2,063kg

STAGES

Stage Engines Delta V Thrust Burn Mass
1 1 3.0km/s 83kN 3.0m 8,280kg

14 Comments

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    Mod sflanker

    Zero inclination means an equatorial orbit. ( also assuming no axial tilt, which was standard for SR2 planets last I checked)

    3 months ago
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    @sflanker what exactly does “zero inclination” mean

    3 months ago
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    Mod sflanker

    @Playery this flight program does not use activation groups. Instead it waits for you to set your target to a planetary body that is orbiting Juno. I have another variant that has an activation group for each planet in the base solar system, but I haven't uploaded yet because I've been trying to fix a lingering bug. This flight program is not exactly a plug and play script like some others. It is mean to be a proof of concept for those learning about orbital mechanics.

    3.6 years ago
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    @sflanker oh ok, I was curious as to why the program just stopped before I even reached Tydos. I’ve still got a lot to learn about getting into planetary orbits. Every time I tried to get into Tydos’s orbit I would shoot right past. I’ll probably figure it out eventually.

    3.7 years ago
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    Mod sflanker

    @Halodoublej sorry, forgot to click reply. See response below. Also, just FYI, this is meant more of a proof of concept of the math than to be a user friendly utility.

    3.7 years ago
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    Mod sflanker

    Yes, this program warps to the next available departure window, then warps to the ideal burn position and executes a single burn to exit your current SOI and get on a transfer orbit to your destination. It will then display "en route to _" and go back to it's initial state. It does not perform inclination correction burns or capture burns. That is left up to you.

    3.7 years ago
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    Is the program supposed to end once you leave Droo’s orbit and begin to travel towards (for example) Tydos?

    3.7 years ago
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    Mod sflanker

    @Halodoublej This flight program is designed to be used on a rocket after it has gotten to a circular orbit with zero inclination. So you'll need to build a rocket capable of making orbit and use a separate flight program to automate the launch. Kell Auto Launch is a popular option. I have my own auto-launch script but it may not be as easy to use as Kelly's.

    3.7 years ago
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    I’m very new to this game I downloaded this cause I want an orbit around Tydos and Urados. My rocket doesn’t want to even lift off the pad. Is it a problem on my part?

    +1 3.7 years ago
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    Mod sflanker

    Yeah, I'm not sure what would cause that but it is probably a small discrepancy between the predicted velocity after the SOI transition and the actual velocity computed at that time. In my testing it hasn't made a huge difference.

    4.1 years ago
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    6,017 Natedoge

    One thing I noticed is that the after you leave the SOI of a planet your orbit path changes. I haven’t really thoroughly tested it on this or the other version, but it happens with all my other crafts. It might happen here is all I’m saying. I think it’s a glitch. @sflanker

    4.2 years ago
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    21.3k Rafaele

    Awesome :3

    4.2 years ago
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    Mod sflanker

    Known Issue: transfers from Tydos to inner planets miss rendezvous by ~1-2 days, even after making a manual inclination correction burn. I'm not yet sure why this is happening.

    4.2 years ago
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    Mod sflanker

    I have only tested this flight program on transfers from Droo to Cylero and Tydos and vice versa, and only with this craft. However, this should work for other vehicles and for other transfers, so long as the vehicle has sufficient delta-v and enough thrust to make the necessary burn in a timely fashion.


    Assistance in testing this with other vehicles and transfers would be appreciated. Remember that your starting orbit must be circular and have zero inclination. If you encounter a failure I would love to know the following: 1) mass/delta-v/Isp/Thrust stats for your craft, 2) your initial orbit parameters (origin planet and SMA), 3) your target planet, and 4) the nature of the failure (apoapsis too high, to low, burn up in the atmosphere of your starting planet, etc).

    4.2 years ago

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