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  1. flytandem

    Idea Roadster Rendezvous

    Wondering who might be first to model a Roadster in a solar orbit matching the resulting orbit following real Spacex heavy launch yesterday. Would make for a fun "Roadster Rendezvous" scenario.
  2. flytandem

    Challenge Varuna intercept

    Addiction? Guilt as charged. Night before last my wife asked me what I was doing. "Orbiter" I replied. "What?" she said. "You haven't done that in years." I do lurk the forum on occasion. It was nice to stumble onto this challenge. Thanks for creating and uploading it. cheers :cheers:
  3. flytandem

    Challenge Varuna intercept

    Doing pretty much the same thing. I opened your doc file and compared to my flight. When I flew it last night I took a screencapture of going across a saturn pole. Here's the dropbox link to the image... :)...
  4. flytandem

    Challenge Varuna intercept

    Saw this a few days ago but was busy over the weekend and couldn't get to it. Last night I gave it a try for a couple hours but was definitely going down the wrong path. I was thinking it was going to be something really exotic and ended up giving up. So about 30 minutes ago I started again and...
  5. flytandem

    Challenge Aldrin Cycler - Mars rendezvous

    Thanks. I hadn't touched orbiter in 3 years so I was rusty. Saw this scenario and couldn't resist. Took a while even to figure out how to turn the engine on and off. Not as efficient as I would have liked but did dock within a couple hours after the station passed Pe at Mars. Thanks for the fun...
  6. flytandem

    Hi Dimitri, I've been mostly away for about 3 years. I just tried to look at a scenario in the...

    Hi Dimitri, I've been mostly away for about 3 years. I just tried to look at a scenario in the challenges called "the ultimate great grand tour". It indicated some dozen or more stages but nothing showed up on any of them. Maybe I am using an out of date version of transx. Have you been able to...
  7. flytandem

    Scenario great-grand-tour

    The simple plan without Mars only took an hour or less. Maybe even 30 minutes. Can't remember. Then I tried for close to two hours the first evening looking for the Mars include and eventually gave up. Then tried again the next morning and found the solution in about another hour or two. But it...
  8. flytandem

    Scenario great-grand-tour

    I've been away from Orbiter for nearly two years working RL tasks. I did drop into the forum a few times to see what was happening. Glad to see some activity here. A couple days ago I fired it up and got to wondering about the idea of doing a combination of inner slings like Cassini but date it...
  9. flytandem

    Your thoughts, please.

    been "fool"ing around with orbiter for 10 years now...' looking up for 58. this seems to sum it up
  10. flytandem

    Update TransX development

    @blixel. I have tweaked the scenario you provided above for a Mars to Venus then Earth trip. I suppose one has to weigh how important fuel is as compared to time of flight. For example I have the same scenario changed to leaving about 12 days later. The eject burn from low mars orbit is about 91...
  11. flytandem

    Update TransX development

    Great job Enjo and all those assisting. FWIW, For a long time I have been wishing TransX could have multiple (stacked) maneuvers ability in a single stage. Just this morning I set up a 2018 EVVEJ with intent to land on Europa, and as I had the planned arrival at Jupiter, I wondered about the...
  12. flytandem

    Problem Precision Needed to Get to Moon

    I loaded the original scenario and even though the setup for the maneuver looked good it sure didn't execute how it was shown. I would ask how far in advance the planned maneuver had been set up? If I am planning a burn many orbits ahead I will use that planned maneuver just to know which orbit...
  13. flytandem

    Challenge Mission: Earth - Jupiter - Saturn - Earth

    Here's a tweak on this scenario that has an aerosling at Mars. As always it's just a guess on the arrival and departure speeds for the aerosling. In this case the encounter speed is about 12km/s and the departure is about 8km/s and the resulting arrival at Earth is about as soft as one can get...
  14. flytandem

    Challenge Mission: Earth - Jupiter - Saturn - Earth

    Nice plan blixel. Here's another one. Same flight duration at about 11.3 years. But instead of waiting 140 year to launch it leaves 2 years from now. Similar plan with minor differences. And instead of an encounter speed back at Earth of 17.8 km/sec it is a bit softer at 11.8 km/sec...
  15. flytandem

    re Math, one of the better threads. thanks./ rob

    re Math, one of the better threads. thanks./ rob
  16. flytandem

    Question I'm asking those who have jobs

    Withdrew from a co-op engineering program at Univ of Waterloo in 1976. Have been self employed teaching hang gliding ever since. aka... Haven't worked a day in my life.
  17. flytandem

    TransX Looking for a tutorial for TransX

    The tutorials are set in order from a basic start to more complex. If what you did was start with the earth to mars tutorials you would not understand since many things are assumed already learned in previous tutorials. I recommend you do them in order provided. And only go to the next tutorials...
  18. flytandem

    I was not paid. Am I wrong to refuse work?

    ... expect and prepare for the worst... FWIW, I have been one to be very strict in my business dealings. After all, business is business. I pride myself in providing a product or service exactly how and when I have stated it would be and go out of my way rapidly to correct any mistake I make. I...
  19. flytandem

    TransX Starting a new plan

    Couple of ways. In stage 1, Setup, Advanced= On, then Plan Type = Initial. Then forward to stage 2 and you should be able to plug in plan values for prograde etc. Or power off both MFD's. save (optional), exit orbiter, then either start current scenario or the save. Then power up MFDs and...
  20. flytandem

    Scenario Earth Mars Earth short mission duration

    The plan and all the stages should remain. But if you are missing Venus beyond some limited amount, it will appear as though you are not heading there. Is that what you mean? Post a save (scenario) for what you are describing. (edit) and it's normal that future slings need to be tweaked and...