From Kerbin to Eve and back with single ship.

[totalitor]

Has anyone succeeded using only stock parts?

I can go to Eve and land and back to orbin but have no fuel to return home. Using pressurised capsule, not that chair. And no docking. Just being all the time inside that capsule.

[r_rolo1]

It has been done a lot of times, but it requires massive ships, especially if you're not picky with the landing spot ( the diference between landing at Eve sea level and in the highest spot means a handful of thounsands of seconds of dV saved ). If you dig a little you will find some examples, especially of the earlier times ( pre docking doors and pre EAS chair ).

[astropapi1]

Just leave a capsule with an ion engine in orbit before doing the de-orbit burn.

[EdFred]

Above 2000m any of my Eve landers would be able to return to Kerbin. From Eve 0m, I only have about 400dV left upon reaching orbit with my Eve Lander. However, I still have 3000dV left in my orbiter. It all leaves Kerbin as one ship, but it decouples in orbit around Eve, into the lander and orbiter.

Edited August 24, 2014 by EdFred

[cantab]

If you don't want to do an Eve orbit rendezvous it'll be tough. Doable, but the extra mass on the top will mean every stage needs to be much heavier and more powerful.

[sedativechunk]

Eve is my biggest challenge in this game. I've dumped nearly 400 hours into this game over the summer and have not successfully got a ship to and from Eve. In fact, even science vessels have gotten destroyed by the heat/atmosphere alone.

I've done several test/probe landings. Let me tell you now that it is VERY hard to land in a precise location on Eve. Attempting to land near a probe on the surface in a spot 2,000m above sea level, every time I landed about 40-80km away.That scares me for a manned mission. Nevertheless, I attempted one. I build a pretty nifty lander that could return from Eve if it landed on one of the plateaus. Unfortunately it burned up during reentry (I'm using deadly reentry). It is truly a demon planet.

[juanml82]

You mean with no refueling? A single (staged) ship can do it, but it will need to refuel, maybe at least twice.

Otherwise you need a lander with 12 km/s, which needs a previous stages with some 2.5 km/s to reach Eve IIRC and, below it, something with 5 km/s to get into KEO. Oh, and you need to add (to the lander) enough dV for the return trip (1 km/s?)

We're talking about 20 km/s total, most of which can not be nukes or ions due their low thrust. Maybe if the lander is some sort of plane perhaps nukes or ions can be used? But, OTOH a plane would expend a lot more time fighting Eve's thick atmosphere.

[EdFred]

You mean with no refueling? A single (staged) ship can do it, but it will need to refuel, maybe at least twice.

Otherwise you need a lander with 12 km/s, which needs a previous stages with some 2.5 km/s to reach Eve IIRC and, below it, something with 5 km/s to get into KEO. Oh, and you need to add (to the lander) enough dV for the return trip (1 km/s?)

We're talking about 20 km/s total, most of which can not be nukes or ions due their low thrust. Maybe if the lander is some sort of plane perhaps nukes or ions can be used? But, OTOH a plane would expend a lot more time fighting Eve's thick atmosphere.

I've made at least 6 different Kerbin-Eve Surface-Kerbin single launch, no refueling ships. It's not that difficult. 2.5km/s dV to Eve is over kill. Even at non optimal launch windows I am rarely above 1.5km/s dV

[r_rolo1]

2500 dV is almost enough to go from LKO to Jool Eve OTOH is barely above Duna in terms of dV to get there ...

[magnemoe]

You mean with no refueling? A single (staged) ship can do it, but it will need to refuel, maybe at least twice.

Otherwise you need a lander with 12 km/s, which needs a previous stages with some 2.5 km/s to reach Eve IIRC and, below it, something with 5 km/s to get into KEO. Oh, and you need to add (to the lander) enough dV for the return trip (1 km/s?)

We're talking about 20 km/s total, most of which can not be nukes or ions due their low thrust. Maybe if the lander is some sort of plane perhaps nukes or ions can be used? But, OTOH a plane would expend a lot more time fighting Eve's thick atmosphere.

Why do it need to refuel, with the ARM parts its not hard to lift 200 ton to LKO.

Eve lander, if you only use aerospikes, put it upside down, nuclear transfer stage, this is perhaps 50% weight increase, Pod, a medium 1.25 meter fuel tank and a 48-7s hand on the side of the core of nuclear stage, this let you use leftover fuel in the nuclear stage to get home. Launcher using the 3.75 meter tanks in asparagus around the transfer stage.

Don't have it here but this is a grand tour in one launch ship (yes it uses command chairs and even ladders)

[totalitor]

I forgot to mention I want to land to sea level...that makes it very hard. So far on orbit I have 400 m/s dV left and that is not enough to get back home.

My landing ship is over 400 t. It is a bit diificult to land on one piece.

[EdFred]

I forgot to mention I want to land to sea level...that makes it very hard. So far on orbit I have 400 m/s dV left and that is not enough to get back home.

My landing ship is over 400 t. It is a bit diificult to land on one piece.

That's overkill. My current iteration of my Eve sea level ascent vehicle is 113t. And no, It not a strap Jeb to a chair vehicle.