Gravity assist has been used by space craft long before Voyager and has continuously been used since.
Do you mean alignment of the outer planets for the grand tour? If it happened in 5 years, we'd miss it. It took over a decade to assemble and launch the Voyager probes.
As in doing a similar grand tour? For Jupiter & Saturn, it feels especially silly since they have already had orbiter follow-up missions (Galileo & Juno for Jupiter, Cassini for Saturn).
In the cases of Uranus and Neptune, a lot of the mission proposals (including the planetary decadal survey are also for orbiters rather than flybys. Trident is something of an exception.
Hello u/RealitySmasher47, your submission "what if the gravity assist from the Voyager 1 & 2 happened in 5 years" has been removed from r/space because:
Such questions should be asked in the "All space questions" thread stickied at the top of the sub.
Please read the rules in the sidebar and check r/space for duplicate submissions before posting. If you have any questions about this removal please message the r/space moderators. Thank you.
SpiritualCatch6757 t1_iu5wsdr wrote
Gravity assist has been used by space craft long before Voyager and has continuously been used since.
Do you mean alignment of the outer planets for the grand tour? If it happened in 5 years, we'd miss it. It took over a decade to assemble and launch the Voyager probes.