eve reentry

[kiros]

n 1.0.2 for tourist missions I would use a space plane to take tourists into lko refuel and continue to duna or eve and I never had a problem with aero capture but now in 1.0.4 my same space plane design explodes at 85km on eve with a periapse of 65km coming in at about 5km\s is this what it's supposed to do or does my design just suck? Should I use radiators?

It doesn't have enough dv to do a capture burn and return to kerbin unfortunately I don't think I have the nan bug in ker

[Nansuchao]

Eve it's really difficult in 2.04. Be really careful entering its atmosphere without the help of some rockets. Now it's similar to our Venus.

[Aragosnat]

Have yet to go to eve do to waiting on contract as well as rep. Sold rep for Funds. But, since Kerbin now has re-entry effects at 55 km up if hitting it fast enough. And the things I used to get down it. Have been those airbrake parts. Those should help out a lot as well as the static radiators (Not sure if they really work). As well as getting an orbit close to skimming Eve's atmosphere before being slowly dragged in. As well as what Nansuchao mentioned.

[maccollo]

5 km/s will wreck anything unprotected in seconds. Fortunately it's possible to design large aeroshells from several heatshields to protect a larger craft.

This rickety contraption I threw together actually works.

Edited June 27, 2015 by maccollo

[Nansuchao]

5 km/s will wreck anything unprotected in seconds. Fortunately it's possible to design large aeroshells from several heatshields to protect a larger craft.

This rickety contraption I threw together actually works.

https://dl.dropboxusercontent.com/u/22015656/EDAV.png

https://dl.dropboxusercontent.com/u/22015656/EDAV2.png

Interesting design. When you land, how much Ablator you've left? In my tries, with a rockets I lose all my Ablator, starting from a 150/85 km orbit, so, 3400 m/s more or less.

[maccollo]

I removed most of the ablator that wouldn't burn off to reduce the mass, which was like 80% IIRC. When I land there's pretty much nothing left. That's coming in from an interplanetary trajectory at about 4.8 km/s. The amount of ablator lost on each shield was reduced as I added more of them. When you increase the heatshield surface area the thermal energy is spread out, so you get lower temperatures and less ablation. At least I think that's how it goes?

It does add a substantial amount of mass tough. The lander is about 65 tonnes. The student heatshield project adds another 25 tonnes to that.

Edited June 27, 2015 by maccollo

[Nansuchao]

So, multiple heat shields are better than a single one, good find...