Yakuzi

Congrats @katateochi and KerbalX team!!! Love the site, plugin and all the work you've been putting into it for all these years!

So the drag cubes for every part are recalculated between every KSP version? Or are they dynamically calculated every time you start up KSP? Why not calculate them once and keep them consistent between versions? These changes have significant ramifications in craft performance, so I'm very puzzled why they're being made in the first place. Especially without notifying the player base. My apologies for pinging once again, @JPLRepo @TriggerAu would either of you be able to explain what's going on? This is news to me. Which version were those changes made? Could you share a link where the devs explained why they changed the drag on purpose? 2020 would not be my first choice for a travel back in time destination... Then again, maybe I had no choice

I spend a lot of time in Kerbin's atmosphere to get my spaceplanes into orbit. Recently I've made the switch from 1.7.3 to 1.10.0 and to my surprise I noticed a substantial increase in the delta-v requirements to get my craft to orbit. Some SSTO designs with slim margins in 1.7.3 are now unable to reach orbit at all. Now I know that KSP 1.8.0 had some issues with drag cube calculations, but according to KSP's version history this should've been fixed in 1.8.1. I performed some basic aerodynamic evaluations to check whether my observations were legitimate or if was losing my mind... or worse, if my spacecraft flying abilities had deteriorated to disgraceful levels. Anyhow, I designed a simple rocket with a bit of fuel and LF ballast in the nose cone: Then I shot it straight up in KSP versions 1.7.3, 1.8.1, 1.9.1 and 1.10.0 (not 1.10.1, my bad, I'm not from the future) and logged the max altitude (repeated 5x per version, the standard deviation is indicated by the black error bars): As you can see from the graph, there is a substantial reduction (>5%) in the rocket's atmospheric performance post KSP 1.7.3. Since this test rocket has few parts, a high TWR and shoots straight up, I can imagine that these effects are exacerbated the longer you spend in the atmosphere and are particularly detrimental for high part-count air-breathing spaceplanes that rely on building up speed in the lower and medium atmosphere. @SQUAD Are you aware of this issue, and if so, are you looking into fixing it? Since the version history documentation doesn't mention any aerodynamic changes after KSP version 1.7.3, I'm assuming this wasn't planned. These changes greatly impact my designs so any info would be immensely appreciated!

I finished my first SSTO for KSP 1.10.0 today. My vanilla interpretation of Lockheed Martin's VentureStar, fully powered by a linear array of toroidal aerospikes . Full album here Craft file at KerbalX. It's super easy to get into orbit. No need to touch the flight controls, the only thing you need to do is set SAS to prograde at 100 m/s, burn to apoapsis and circularise.

Go Mun or bust!

Downloading from the store now...

That's unfortunate... Thanks for the reply @TriggerAu

Since you guys seem to be squashing symmetry bugs, has this ancient one finally been fixed? https://bugs.kerbalspaceprogram.com/issues/20423 (https://bugs.kerbalspaceprogram.com/issues/10098) *crosses fingers*

Nice to see you on the forums mr President

Agreed with @TranceaddicT, that's a work of art... great stuff!

Interesting update. Contains stuff and things that KSP fans like me like to hear about. @SQUAD @Nate Simpson Is there a reason why this is not posted in the Announcements or Daily Kerbal? If you decide not to post it there, could you make this thread a sticky at the very least? Thanks!

Very informative @OHara, thanks!

Still bugged in KSP 1.9.0.2781 (x64). Any news on a fix? @OHara Bit of a late reply, but do you see similar asymmetric physics with the stock Mk3 parts? The 'hack' you tried above was suggested by @Porkjet when we first discussed this issue back in 2016 (the thread was magically lost), and is used for Mk3 fuel tank symmetry if I'm not mistaken. They should display the same buggy behaviour, right? Or are their attachment nodes right at the center of the part?

@Cleperli created a thread a couple of days back, where (s)he asked if you can delete your KSP forum profile. A mod said deleting your profile is impossible and, alas, closed the thread before anyone could reply (hence this thread). I'm somewhat puzzled why we can't delete our profile on the KSP forums, especially since you can on other Take2 websites, as per their Privacy Policy. So it appears to directly infringe GDPR regulations - which state that any EU internet user has "The right to be forgotten" or "The right of erasure" on the internet. Since the KSP forums are providing services and store personal data (at least an email address, I take it an IP address, but who knows what else?*) of EU users, they are bound by EU regulations. So if we can't delete our full profile, can our personal data removed/deleted at the very least? Not trying to start an excrement storm here, but if personal data is currently not removed upon request of an EU user, 'KSP forums' and their owners are liable to GDPR regulation infringement, which can result in a lot of misery that no-one is waiting for. So @SQUAD and forum mods, it would be immensely appreciated if you could give us a bit more feedback on why we can't delete our profile/personal data, other than: "Nope, I'm sorry, but that is not something this forum does." To start, could you please answer the questions below, though I'm sure my fellow forum users will have some more: 1. In neglect of deleting profiles/accounts, how do you warrant that a user's personal data is deleted within 30 days upon request? 2. What personal data do the KSP forums store? 3. Is this personal data distributed/used in any way or form outside of the KSP forums? 4. If the answer to question 3 is "yes", are you informing the user when his/her personal data is used by third parties? 5. If the answer to question 3 is "yes", are you informing the user which third parties are using his/her personal data? 6. If the answer to question 3 is "yes", how do you warrant that this personal data is protected and deleted by third parties? I hope the reply to @Cleperli's post was just a bit on the scarce side, and that you guys already have this covered. I did a quick search on the topic and the privacy policy, but couldn't find anything specific to the KSP forums. If there's an existing thread that explains this in detail, please send me the link. *This is a serious question. Anyone?

Huh, which ones? Apart from the science msg spam fix, I can't find 1.8.0 fixes for any of the top 50 upvoted bugs on the tracker (or closed bugs). @nestor Does this mean there's gonna be a bug fix coming soon (as in 1.8.1 or 1.8.2)? Or is it just something that's in the pipeline? Again, there's some really low hanging fruit with a lot of upvotes on the bug tracker. Not unlike the bug listed below: Upvoted and SMH...