Venus return mission

[Mars_rover]

The rocket


Venus return vehicle compared to Mars return vehicle

More fuel, wider landing legs, aero nose cone, I used fairings instead of seperators to keep the weight down,
and an extra stage with an ion engine to ger 'er back to earth

To LEO


To Venus, passing through the atmosphere once for an aero capture.
22km is the sweet spot between burning up and not slowing down enough to get captured


Venus descent


I chose a great landing spot

~near verticle incline

luckily the landing legs could handle it


Back to Earth

Liftoff


Punching straight up through the atmosphere starting the gravity turn at about 5km


1/2

 

[Mars_rover]

Return to Earth

I think it might be possible to do it without an ion engine without changing the whole mission I just need to find 400m/s of delta v somewhere

2/2

 

[Catalyst_Kh]

Very beautiful ships designs!

Also look there: Venus Land and Return

 

[Altaïr]

Great mission. That ship returning from Venus is so tiny, I like how all your hopes of return rely on that small ion engine and that tiny amount of fuel. It tells a lot about the power of ion engines

 

[Cresign]

The rocket
View attachment 101459

Venus return vehicle compared to Mars return vehicle
View attachment 101475
More fuel, wider landing legs, aero nose cone, I used fairings instead of seperators to keep the weight down,
and an extra stage with an ion engine to ger 'er back to earth

To LEO
View attachment 101460 View attachment 101476 View attachment 101461 View attachment 101462

To Venus, passing through the atmosphere once for an aero capture.
22km is the sweet spot between burning up and not slowing down enough to get captured
View attachment 101463 View attachment 101464 View attachment 101465

Venus descent
View attachment 101466 View attachment 101467 View attachment 101468

I chose a great landing spot
View attachment 101469
~near verticle incline

luckily the landing legs could handle it
View attachment 101470

Back to Earth

Liftoff
View attachment 101458

Punching straight up through the atmosphere starting the gravity turn at about 5km
View attachment 101471 View attachment 101472 View attachment 101477 View attachment 101473

1/2

That could easily be turned into Venus²

 

[p0wermac1]

sweet holy dog geez this is good!!

 

[Phoenix Aerospace]

sweet holy dog geez this is good!!

hot diggity dog

 

[Mars_rover]

Very beautiful ships designs!

Also look there: Venus Land and Return

11 times denser irl? damm, post your mission sometime id be interested to see how you did it.

 

[Catalyst_Kh]

Maybe i will record video performing it.

 

[Mars_rover]

sweet holy dog geez this is good!!

Thank you

 

[Mars_rover]

Great mission. That ship returning from Venus is so tiny, I like how all your hopes of return rely on that small ion engine and that tiny amount of fuel. It tells a lot about the power of ion engines

Thank you only a drop of fuel to get back to Earth, I want to try doing it without ions, any gravity tricks I can use? does breaking up the Earth return burns in multiple passes create a stronger oberth effect?

 

[Republic of planet]

Hi this is my 1st message on the forum the rocket looks cool

 

[Catalyst_Kh]

Thank you only a drop of fuel to get back to Earth, I want to try doing it without ions, any gravity tricks I can use? does breaking up the Earth return burns in multiple passes create a stronger oberth effect?

There are some tricks you may try.

You can use Moon to gain some extra speed and then put this speed back to Earth to make Oberth near Earth, i don't know how much extra +delta V you will get, but that should be more useful than slingshoting from Moon with escape trajectory, since instead you can escape with huge Oberth bonus from Earth, which is much better, and you keep extra free +delta V from Moon too, even if it is small.

While if you are slingshoting from Moon to escape trajectory, then you need to make Oberth burn near Moon and that most likely will eat away all gravity assist back and you might not get any +delta V at all.

You can practice that free untaxed bonus acceleration in that challenge: New challenge - save your ship and yourself after major accident

Also you can stage 2 or 3 normal gravity assists with moon and make Oberth burn only at the last assist, in this way you can collect more +delta V and will have to burn less fuel on that Oberth, which might be more beneficial, than previous trick, but the problem is - it is hard to plan ahead in which direction exactly you will be thrown away and after how much months or weeks that will happen, for this time Earth will change it's position around the sun and your trajectory can be too inefficient, which will require a lot of more burning again. But theoretically, this can give some +delta V, if everything performed ideally.

You can watch examples of trajectories to collect 2-3 GA from Moon in second video in that topic: Moon mission with the smallest launcher at Realistic level

Though i like first trick more, since it will take only days and Earth will remain where it were, so it is easy to plan trajectory all the way.