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Posts posted by camacju
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I completely forgot to post this here!
A collaboration between myself and @Ultimate Steve, trying to build and fly the lowest mass stock+DLC grand tour possible. While we didn't quite hit that goal, as there is still quite a bit of mass to be saved, we did take a lot of mass off the previous record.
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1.447 ton to Moho by JeDoesStuff -
18 hours ago, Robin Patenall said:
The big problem is that there is no easy way to re-root your vessel while in EVA construction, the closest thing is to dock / grapple it with another vessel that has a higher priority
You can also change the vessel type to Debris or DroppedPart and pick it up that way
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Here's a challenge for exactly this. People have gone way beyond just one lap of Kerbin.
Here's another for flying all the way around Earth. This took me 59 hours but luckily I could put on time warp and let autopilot fly while I did something else in the background.
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Eve in 4 tons. 3996 kg without pilot or cargo, 4061 kg by this thread's rules.
@Alpaca Z The central trick of this mission is the use of a ladder to effectively ignore a kerbal's mass and drag. By the rules of this thread as they are now, this should be legal, but an official ruling on this specific trick would be nice. -
What are the rules for drag reduction techniques? It's possible to SSTO on Jupiter with stock parts and all the aero tricks in the book, but I don't think it fits with what you're thinking.
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6 hours ago, king of nowhere said:
that's why i see your new records only every once in a while
6 hours ago, king of nowhere said:nine months for a simple stock system grand tour is mind blowing.
The issue was that it wasn't a simple grand tour. Even something like designing the structure connecting the landers to the main craft was a puzzle that required several days, and we still didn't get the optimal end point as we stopped on something that would be relatively user friendly.
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3 hours ago, JacobJHC said:
I think this would fit on the low mass leaderboard
At the core it's really similar to the low mass Jool 5 that I already did, I guess it's up to you to decide where it fits better (you're the challenge manager after all) but please remember to also credit Ultimate Steve (:
3 hours ago, JacobJHC said:This mission is so perfect I don't even know where to start. Seriously.
about that...
There's actually a fair amount of improvement in the mission. Once we got it below 8 tons the primary focus was to preserve our sanity while flying it. We possibly could have gotten it below 7 tons but this already took nine months and I'm unsure if the maximally optimized version would ever be finished.
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For the past nine months I've been working with @Ultimate Steve on a grand tour mission:
This doesn't quite make it on the low mass leaderboard, but I think it's pretty cool regardless.
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I think launch clamp trickery should be banned because someone is going to just start in interplanetary space and that isn't really fun. You could have the rules say the craft has to start stationary and in contact with the surface of Kerbin, which does allow mountain launches but that's a bit more interesting than just sticking a 1 million km long launch clamp on the craft.
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4 hours ago, Celeste SI said:
Looking at the rules, it seems as if KJR isn't allowed? (I haven't played without it for months, that'll be painful!)
If you're going for a spot on the table then the crafts are gonna be light enough to not need KJR. Autostrut is perfectly fine for anything here. Actually, a lot of the time, you will want to not use autostrut, for example with DLC propellers.
4 hours ago, Celeste SI said:Mechjeb's computer (for readouts and orientation) should be allowed, right?
Yes, at least that's what I've been using
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For the record, you don't need to use craft file editing to align the Spider engine thrust and the kerbal. All you need to do is get close enough with angle snap turned off, and use the engine gimbal to compensate for any imbalance.
Edit: I'm pretty sure we cannot allow all forms of craft file editing, because you can get negative fuel in a fuel tank and that makes a mockery of this whole challenge. I would err on the side of no craft editing, and if there's any doubt, have a requirement to show the in-game construction method that was used.
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the
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1 hour ago, Donmy Kerman said:
@camacju I was wondering where you landed your Eve SSTO.
Latitude -25, longitude -158.5
Pretty sure this is the tallest mountain on Eve and it's got a nice smooth takeoff area
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On 9/2/2023 at 12:32 AM, ItanMark said:
Seems like fun! Ima try and do it via mining on Gilly.
It's actually a lot easier to skip Gilly entirely and just go direct, you'll use more fuel slowing down to land than just continuing your escape burn.
2 hours ago, ItanMark said:[UPDATE] How do you guys even do a normal eve ssto? At first glance it looks impossible☹️
There are a few different ways to do it. Since this challenge requires no propellers, I would suggest starting with one of Astrobond's designs:
SpoilerFrom there you can tweak ascent profile, wing area, and thrust-to-weight ratio. Try to get as much payload in orbit as you can.
Another thing to try is to assist the ascent with nuclear engines. If you fill the wing tanks with liquid fuel, you can have zero additional dry mass (besides the engine), which is nice.
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3 hours ago, Poppa Wheelie said:
I think I see some fairings and clipping at the front, but can't really tell what's going on. Two blue stripes up front - is that a kerbal helmet? More fairings at the back? Maybe you're doing some things with the fairings to reduce drag?
One fairing is the entire fuselage of the craft. Fuel tanks are clipped inside the fairing along with the vector engine. The blue stripes up front is an ISRU module because I was trying to do a full self contained mission at the time.
The fairing is the root part of the craft so drag is reduced but this is probably not strictly necessary.
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Ok, I'm not sure if this is a good topic for this forum because it might or might not be possible.
I was playing around with some Eve SSTO designs and got this:
SpoilerThis craft uses a single Vector engine for the ascent - no propellers. It actually has enough payload capacity to fit in some ion propulsion and go all the way back to Kerbin.
This alone is nothing new - Brad Whistance did it years ago. But this is a much lighter design and has a greater payload fraction, which leaves another possibility.
The main question I have is:
Is it possible to go from Eve's surface to Kerbin's surface in a single stage, with no propellers and no ion engines?I've done some calculations and it seems like it may be possible, especially if the craft is scaled up and a Mammoth engine is used instead of four Vectors. I know that it's possible to go from Eve to Kerbin with propellers and no ion engines, but propellers definitely make the challenge easier. I think this will push right up against the limit of what's possible on a purely rocket-powered Eve plane.
More detailed rules:
-The craft should be able to start on the surface of Eve (stationary) and end up stationary on the surface of Kerbin.
-No staging (also: no docking with or clawing anything, no burning off parts or removing them through EVA construction)
-No ion engines (because we already know that's possible)
-No propellers (Stock props should already be disallowed through the no staging rule, so just don't use any parts from the Breaking Ground dlc. If there are any loopholes they will be patched)
-ISRU optional (you can edit the craft to Eve's surface if you want) but if you manage to take a set of ISRU equipment as well then I will be impressed. -
3 hours ago, JacobJHC said:
What were those two tiny blue things? Were you using tiny flags as sleds?
Yeah, I got the idea from Ultimate Steve's grand tour. It's a bit annoying to take off successfully because of seams in the terrain but it's a lot lighter than normal landing gear.
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On 7/30/2023 at 10:04 PM, camacju said:
I haven't gotten around to editing the video yet.
Oops, I forgot about this.
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4 hours ago, OJT said:
... perhaps you guys might be interested?
you could use a Big-S wing and control the craft just through gimbal and reaction wheel, that would save 5 parts or so. Also maybe remove the battery and just use the cockpit internal battery?
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Update: I finished the mission a while ago with 332 liquid fuel remaining. I haven't gotten around to editing the video yet.
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Haven't quite finished my attempt yet. I'll post some teaser images I guess
SpoilerLooks normal so far...
Wait, this isn't Mun!
?????????
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ooh I've got some ideas for this one. Will take a crack at it when I get home!
Kerbfleet: A Jool Odyssey-CHAPTER 21 pg 18--He's a docking wizard! (there had to be a twist?)
in KSP1 Mission Reports
Posted
Bill pulls out his standard issue laser welder and wonders why they never read the cargo manifest before?