downloaderfan
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Alright, it's been almost two and a half years since I've been active on orbiter forum. I usually fired up orbiter about once in two months. At some point, I came across Flytandem's various slingshot scenarios and was inspired by it.
So after planning a few basic slingshot maneuvers over the years, I finally decided to go for the ultimate slingshot plan - A tour through ALL the planets of the solar system. And after failing like 2-3 times in the past, I was finally able to come up with a complete solution over a course of 2 days.
It goes like this:
Earth-Venus-Mercury-Venus-Venus-Venus-Mars-Earth-Venus-Venus-Venus-Jupiter-Saturn-Uranus-Neptune
My plan was to reach jupiter around the voyager dates, so I first started my plan around 1965,66,67 but reached dead ends after almost a hour of planning.So I went even earlier and found a solution starting from 1962.
The first sling from venus to mercury has a Pe/Pl Rad of 0.973, despite my best efforts, I was not able to get it above 1, so I performed the sling with an altitude of 112 km (Venus) and was later able to correct the trajectory with a 150 dv burn just outside of the Venusian SOI. All the other slings have Pe/Pl Rad above 1.
Falling as low as mercury and then rising up again without utilizing any fuel (MCCs excluded) required 3 slings around venus to rendezvous with mars. Now, after mars, at least 2 slings around the earth were required to get my apogee as high as jupiter's. Due to my early launch date, I could raise my orbit as high as jupiter's and then wait an entire orbit to rendezvous with jupiter. So I first tried EVMeVVVMaEEJ, however, I was rendezvousing with jupiter only in 1980, which was too late to perform the sling to saturn. :shrug:
So I went back to venus again to change my trajectory and performed 3 continuous slings to raise my apogee above jupiter's & rendezvoused in early 1978.
The rest was pretty easy. (Of course)
Reached neptune in August of 1987. BTW, I also made a plan for Pluto after saturn which was actually Voyager 1's original mission and was able to reach pluto in september of 1986, before Neptune. :blink:
I've attached all the scenarios below, one folder purely for the plan & the other consists of the execution. I had to split the complete plan into 3 scenarios because after 14 stages of planning on earth, transX went nuts & the values began to fluctuate way too fast to plan further. So I had no other choice but to execute the path & plan further slings later, midcourse.
And of course
View attachment Ultimate grand tour scenarios.zip
So after planning a few basic slingshot maneuvers over the years, I finally decided to go for the ultimate slingshot plan - A tour through ALL the planets of the solar system. And after failing like 2-3 times in the past, I was finally able to come up with a complete solution over a course of 2 days.
It goes like this:
Earth-Venus-Mercury-Venus-Venus-Venus-Mars-Earth-Venus-Venus-Venus-Jupiter-Saturn-Uranus-Neptune
My plan was to reach jupiter around the voyager dates, so I first started my plan around 1965,66,67 but reached dead ends after almost a hour of planning.So I went even earlier and found a solution starting from 1962.
The first sling from venus to mercury has a Pe/Pl Rad of 0.973, despite my best efforts, I was not able to get it above 1, so I performed the sling with an altitude of 112 km (Venus) and was later able to correct the trajectory with a 150 dv burn just outside of the Venusian SOI. All the other slings have Pe/Pl Rad above 1.
Falling as low as mercury and then rising up again without utilizing any fuel (MCCs excluded) required 3 slings around venus to rendezvous with mars. Now, after mars, at least 2 slings around the earth were required to get my apogee as high as jupiter's. Due to my early launch date, I could raise my orbit as high as jupiter's and then wait an entire orbit to rendezvous with jupiter. So I first tried EVMeVVVMaEEJ, however, I was rendezvousing with jupiter only in 1980, which was too late to perform the sling to saturn. :shrug:
So I went back to venus again to change my trajectory and performed 3 continuous slings to raise my apogee above jupiter's & rendezvoused in early 1978.
The rest was pretty easy. (Of course)
Reached neptune in August of 1987. BTW, I also made a plan for Pluto after saturn which was actually Voyager 1's original mission and was able to reach pluto in september of 1986, before Neptune. :blink:
I've attached all the scenarios below, one folder purely for the plan & the other consists of the execution. I had to split the complete plan into 3 scenarios because after 14 stages of planning on earth, transX went nuts & the values began to fluctuate way too fast to plan further. So I had no other choice but to execute the path & plan further slings later, midcourse.
And of course
View attachment Ultimate grand tour scenarios.zip
Last edited:
