Flight Question 2Qs，about earth to Venus and other "going in" trensfer

[769270865]

Today I try to go to Venus use Transx I find out is hard to lower the Min Alt for arrive. And I heard that going from "outside" sole system to "inside" is hard.What is different between going "outside"?
Second can you land on Venus use XR vessel or DGIV with out overheat or Damage?

 

[PhantomCruiser]

I've used IMFD to go to Venus and Mercury several times, and I've been to Mars and Jupiter. I've not noticed that it's all that different getting to the outer planets versus the inner planets.

I have heard that landing on Venus can be done with a DGIV, but I've not tried it. I usually just drop probes.

 

[N_Molson]

The main difference is that, to reach the inner planets, you have to perform the ejection burn retrograde relatively to Earth orbit around the Sun (if you are starting on Earth, that is).

What is important to consider is that Earth give you an initial velocity relatively to the Sun. In the first case, the burn adds more velocity, so you are going away from the Sun. In the second case, the burns substracts velocity, so you are going closer from the Sun.

Second can you land on Venus use XR vessel or DGIV with out overheat or Damage?

Try. You can save your game at any moment.

 

[flying coffin]

I've not noticed that it's all that different getting to the outer planets versus the inner planets.

I have an amusing story abut this very thing. (kinda long, but bear with me)
I was taking a 400 (senior) level astrophysics class at Arizona State University where I worked. The professor knew all the math, but was a little
short on practical details. i'm just the opposite. Anyway i ended up teaching the class occasionally. I was demoing orbit eject burns with orbiter, during the daytime of course, so it could be clearly seen. I said "we are going to either venus or mars, which one?"

I get blank stares from the class. Finally one guy raises his hand and says "Mars?"

So I draw a picture of the sun, venus, earth, and mars on the whiteboard with circles and arrows and a paragraph explaining the orbits of each one of them, and the rotation of the earth, with a standard prograde orbit. I explained that if the orbit eject is during the daytime, you're going to venus. If it is at night, you're going to mars.

 

[769270865]

Ok，I made to venus, and I land on it......yes I made my own base,and land on it after demage gear and hover doors.Here is a question,if I want to Rendezvous with a ship，but I
orbit opposite direction with that ship can I still Rendezvous somehow?(like I going from east to west ,other ship from west to east)I don't thing it can rendezvous。。

 

[Ripley]

No, you can't.
Relative speeds are way too high.

 

[N_Molson]

You will end up with a relative velocity of nearly 14,000 m/s (the two vessel close in 14 kilometers each second !). Orbiter doesn't check the speed when you dock so theorically it is possible. Practically, there are not enough frames/second to acheive this. Even if you had lighning-fast reflexes and you were running the sim at 0.1x time warp.

Some have tried. Closest approaches were around 40 km AFAIR, which is already very good.

 

[Urwumpe]

Some have tried. Closest approaches were around 40 km AFAIR, which is already very good.

If you try often enough, you can also get docking with 15 km/s. The monte carlo principle there. It is no problem to manually hit a Shuttle PB sized target with a ASAT projectile, if you switch to 0.1x time.

 

[Bonanza123d]

If you try often enough, you can also get docking with 15 km/s. The monte carlo principle there. It is no problem to manually hit a Shuttle PB sized target with a ASAT projectile, if you switch to 0.1x time.

If you are talking about rendezvous with ships between planets. I have done it before. All you need is a XR5 with a lot of fuel to slow down your relative velocities.

 

[Urwumpe]

If you are talking about rendezvous with ships between planets. I have done it before. All you need is a XR5 with a lot of fuel to slow down your relative velocities.

There are also others ways, that require less fuel and simply better planning.