ww1612

There are multiples problems to resolve: Eve atmosphere entry, landing, and coming back, as well as lifting a giant rocket from Kerbin (too many parts would induce game stability issue) Challenging though, mission complete:

Finally, get this mission done. However, the mission tracker might have some bugs...

Game version 0.2.0 Use "Flight Plan" "K2-D2" and "Maneuver Node Controller" for assistance. Thank you modders! Two-crew pod plus 8 seats: >400 ton rocket to launch from Eve. Mix of T-1 and KS-25 engines. (Cross-feeding configuration, the delta-V calculation is inaccurate) Heat shields on the bottom to protect the rocket during Eve entry; heat shields extending wider on the top to stabilize the orientation, preventing flipping during Eve entry. >7000 ton ultra-heavy rocket to launch from Kerbin: On low Kerbin orbit: Eve fly-by. Should target for ~40km for air-brake: It's fast, it's hot! Slow down: Landed! (Landing legs are fragile now, ks-25 engine are better for touching down!) Back to low Eve orbit: Dock with a fuel tank vessel (launched separately) for re-fueling. Would have ~2400 dV to come back: ... Made a mistake: The medium heat shield cannot protect the two-crew pod (although it is also the medium size). So made another docking at Kerbin orbit to bring a large heat shield: landed! Note that there are still some bugs Sometimes, it can trigger the mission completion for the "Under Pressure". But sometimes, it wouldn't. Save-load a lot and use teleport to get my vessel back to Kerbin to check the situation. It seems to me that this bug is pretty random. I must say, for this kind of challenge, this kind of bugs are pretty annoying and depressing.

I think I encounter a bug: The interplanetary transfer seems to be inaccurate. It usually miss the target, cannot even make a intercept. Game version 0.2.0. Only has this mods and its recommended mod

Thank you for the advice. In fact, I also use a similar design in KSP1. Based on my experience, this configuration (one Inflatable Heat Shield on the bottom, and the other on the top) works for the vessel <200 ton; if the vessel >300 ton, it would still flip. Furthermore, in KSP2, the Inflatable Heat Shield can not resist heat. Even the one on the top would get overheat and explode during re-entry.

Try to land a 400-ton rocket on Eve. Using the parachutes and firing the engines to get the touchdown speed to 6~8 m/s Have 6 large landing leges attached, but it always fails due to "structural failure on linkage between LT-3 'Wallaby' and [the attached body. in my case, FL-T800]" Also tried with 12 legs, but it also fails. I understand the surface gravity on Eve is higher than Kerbin, so the its Impact Tolerance would be lower at Eve. But its Kerbin number is 20 m/s. Any recommendation for the landing gears for Eve?

Thank you for the explanation. I guess this effect is stronger at lower orbit? Besides, to be captured by the target planet, should I aim for lower fly-by orbit for delta-v efficiency?

Try to go to Jool. The Community's Delta V map and the built-in travel planer both give similar estimation. It takes 980~1250 m/s to intercept Jool As I just escaped Kerbin and circled the the orbit, the orbit height of my vessel is pretty close to that of Kerbin and the angle is near 0. However, when I try to make a Hohmann transfer to Jool, it needs ~2500 m/s to raise its ap to Jool's The similar siltation also occurs when going to other planets. So I am wondering why it need much more delta v than estimated?

I try to land a 300-ton-rotcket on Eve, or 100-ton-rocket on Laythe. Of course, I have SAS, the reaction wheel with sufficient battery, and the heat shield on the bottom for airbrake. At first, the vessels can maintain its orientation, but it would always flip in the high atmosphere, then get destroyed. In fact, I encountered very similar situation in KSP1, when I also tried to land a 300-ton-rotcket on Eve. Some said it relates to the center of mass being too high, or need more control surfaces, or making the top parts more draggy. Some said it is a bug about heatshield ("PhysicsSignificance") So what are your thoughts about it?

Reported Version: v0.2.0 (latest) | Mods: none | Can replicate without mods? Yes OS: Win11 | CPU: 12900 | GPU: 4080 | RAM: 32 Unlike the normal heat shield, which burns ablator, the inflatable heat shield would simpily reach the maximum temperature and explode. It makes the inflatable heat shield useless for reentry of heavy vessels. is it a bug? Or is it the feature? (only for light vessels, which decelerate quickly by air drag) Included Attachments: