Regarding specific impulse, the reason that it uses the unit of seconds (as opposed to meters per second, because specific impulse is directly proportional to exhaust velocity) is so the figure is the same in any unit system that uses seconds. Otherwise, you'd have specific impulse for SI units, Imperial units, etc. Meters per second is also dimensionally equivalent to Newton-seconds / kilogram, or the impulse (change in momentum) provided by each kilogram of fuel. By using seconds for Isp, you can put in whatever gravitational acceleration value in whatever units system you want and it will still be valid.
@ThylineTheGay11 ай бұрын
Mmh, they could show the current calculated Delta v m/s also
@butteronmytoasts11 ай бұрын
i figured g would be a relative usage for an equation that calculates the decrease in drag along the projected flight path. unless they just have good enough tolerances for that
@leokastenberg80011 ай бұрын
There's also an alternative to the version of the rocket equation used in the video which uses exit velocity of the engine instead of Isp
@kerbinsphere11 ай бұрын
The other reason I believe has to do with how you measure specific impulse itself when testing an engine. You can't put a speedometer on rocket exhaust, so they have to measure how much force it's generating for how long with a certain amount of fuel, and then do calculations from there, and guess what you can't get rid of on the surface of earth (which is the only place you can test rocket engines) is? Yeah, that pesky 9.81m/s^2 gravity, which means I believe they also model force measurements around that? I could be wrong and it's true that they could just convert it, but irl you can't just set specific impulse in a config file, you have to have some way of testing it, and since gravity is in there, it makes sense that that would work it's way into the equation somewhere
@kerbinsphere11 ай бұрын
@@leokastenberg800 yeah, it's just dv = Ve * ln(m0/m1) instead of dv = ISP * g * ln(m0/m1) * important to note that Ve is exhaust velocity here
@SPACECATIZZY11 ай бұрын
damn 2 years. It seriously hasn't even felt like that long wtf, glad to see you back
@Nicolas_Gamer547611 ай бұрын
it’s seriously been 2 years???
@SPACECATIZZY11 ай бұрын
@@Nicolas_Gamer5476 right? i could’ve sworn id just watched his latest videos
@Nicolas_Gamer547611 ай бұрын
@@SPACECATIZZY yea last time i checked it was 5 months ago but that doesnt feel like 5 months ago
@Stratzenblitz7511 ай бұрын
BRAD! I'm so excited to another video from you! It's cool to see how well KSP1 spaceplane design has translated over: it seems KSP2 uses a similar drag model as KSP1 so I guess its not too surprising. Have you noticed any changes in the atmosphere in KSP2? Does it seem thinner, soupier, or about the same? Looking forward to more antics from Bill!
@hsbylo11 ай бұрын
Yo it’s him!
@tricky291711 ай бұрын
Your turn, buddy.
@bongchong111 ай бұрын
Oh my god they both are still alive!!
@mephisto810111 ай бұрын
Welcome back to you too, good Sir! Seems KSP2 is getting on track again.
@BradleyWhistance11 ай бұрын
It seems quite similar on the whole. In essence, the same drag model
@KerbalSpaceProgramOfficial11 ай бұрын
Welcome back 💚
@Voxelowo11 ай бұрын
Any idea when the full ksp2 release is coming?
@TheRocketForge7 ай бұрын
@@Voxelowojust wait
@totallynottitan1265 ай бұрын
It never will! 😩
@isaactrockman4417Ай бұрын
@@Voxelowowelp
@anekdoche7055Ай бұрын
huh, that was disappointing
@MattLowne11 ай бұрын
Has it really been 2 years? 😯😯 Welcome back!
@ShadowZone11 ай бұрын
Good to see new content from you, Bradley, and that spaceplane is really something! Regarding the fairing stuff mentioned at 7:50, even after playing months of KSP2, I am still not sure if interstage fairings actually close or of I have just created an open cylinder. But then again, it doesn't appear that fairings really protect against hat yet, soooo.... I guess the devs have still some work to do on that front.
@TheWinsmith11 ай бұрын
Almost all use cases for interstage fairings can be replaced by engine plates. An engine plate is basically an interstage fairing that builds itself.
@ShadowZone11 ай бұрын
@@TheWinsmith I can't remember how long you can make the engine plates fairing, so maybe interstage fairings can be extended longer?
@creativecarveciteclimb568411 ай бұрын
Let's go you're back! I thought you quit youtube after those years of waiting. Also, a few months later, after figuring out what is causing the "phantom roll", you are going to find a way to save 50% of the initial mass somehow. Keep it going!
@N9GamingOfficial11 ай бұрын
HE'S BACK! BY THE NINES HE'S BACK! Always loved watching your videos, super stoked to see your name in my uploads again :D
@blockgqmer11 ай бұрын
We all missed you so much. Welcome back to ksp
@thespacepeacock11 ай бұрын
Welcome back Bradley! It's great to see you back and playing KSP2. i'm excited to see what feats you can pull off in the game!
@DrBlort11 ай бұрын
I haven't been playing enough KSP 2 yet to know why the phantom roll happens, but don't discard an actual bug at this stage Also, welcome back! It's good to see you again, I missed your videos!
@nonsaline11 ай бұрын
2 years! Welcome back!, I'm imagining that you just got back from a mars flyby round trip that you spent sitting in a lawn chair strapped to a rocket to save mass. I'd love to see a crack at the land speed record for ksp2 if you ever find yourself bored of space :)
@alexsiemers789811 ай бұрын
With how upsetting the initial launch was last year it’s nice to hear that your first impressions of the game as it is now seem pretty positive.
@Izayuukan11 ай бұрын
Hi Bradley, this made my day. I'm not sad about the gap in uploads, I'm just happy that you're back!
@tobiassteindl230811 ай бұрын
12:50 THANK YOU!! For ages I have been wondering on why we measure ISP divided by g, and came to the conclusion that there's no damn reason to do so. I'm glad someone like you is getting the word out there.
@matrick135611 ай бұрын
THE LEGEND IS BACK
@Matthew_ksp11 ай бұрын
Welcome back! It's good to see you're back, I can only imagine what crazy missions you'll do in KSP2, can't wait!
@mephisto810111 ай бұрын
Nice to see you too here. And congrats to your 1500 Subs!
@Matthew_ksp11 ай бұрын
@@mephisto8101 thanks!
@ProfoundKrab11 ай бұрын
Just when the world needed him the most, he returned. Kraken speed, Bradley
@phoenics246511 ай бұрын
THE LEGEND IS BACK! the community missed you bradley, welcome back
@galacticalliance480111 ай бұрын
man disappears for 2 years, comes back to not ksp, but ksp 2 and immediately builds the most ridiculous nuclear spaceplane out there right now. im happy to see youre still alive, thought we lost you there.
@OliverPI-v6j11 ай бұрын
Good to see you back!
@elenawhistance11 ай бұрын
Welcome back!
@spartanjack17511 ай бұрын
It's really been 2 years? You made some of the best ksp videos, glad to see you're still around.
@JohnSmith-cb6qx11 ай бұрын
Can't wait to see what you have cooked up for KSP2!
@thatoneguy929111 ай бұрын
You’re one of the reasons I made it to my first planet other than Kerbin, welcome back.
@gabecichocki391511 ай бұрын
Holy heck the king the legend has returned!1 Love your content
@IvanRodriguez-tl2zr11 ай бұрын
I'm glad you're doing well after 2 years! Don't feel rushed to make new videos and take your time to make great videos.
@distinguished19911 ай бұрын
I was literally just rewatching the odyssey by Bill today! So happy you're back Bradley.
@royeverett11 ай бұрын
I've been patiently waiting for a KSP 2 video from you. Thank you for delivering! I'm excited to see what you'll accomplish in this game!
@macebobkasson162911 ай бұрын
I am so glad to hear from you. Your wit and professionalism were sorely missed.
@phoenix016611 ай бұрын
Welcome back Bradley! Can’t wait to see just what you do with these new hyper-efficient engines lol
@mephisto810111 ай бұрын
Welcome back! Nice to see you again.
@fRiX1511 ай бұрын
Finally you are back! I was waiting for more than one year, you are one of the best youtuber and I was expecting a videos from you one of these months
@Ricky-CC11 ай бұрын
Welcome back Bradley! So happy you’re back. I’m really looking forward to what you can do in KSP 2. A low mass SSTO mission would be interesting to see!
@snottytoe695711 ай бұрын
One feature I would love to have back is the maneuver node planner mode where you can fine tune your node with the little UI in the bottom instead of having to angle my camera so that I can see my SOI intercept path and the node from wherever I may already be orbiting. Also being able to adjust the node with scroll wheel was always nice, and seeing my projected periapsis from the UI instead of having to look at the orbital trajectory itself to see my height.
@asmodeus103311 ай бұрын
i missed you so much glad you are back again with quality content ❤️
@cost-pluscontent237111 ай бұрын
Looked up your channel several times to see if you’d uploaded. Welcome back!
@NevinThinagar11 ай бұрын
I'm so happy that you're back! Can't wait to see what you'll do in this new game!
@ДмитрийКовальчук-р9и11 ай бұрын
You have returned! What a legend!
@randomguy004711 ай бұрын
Welcome back brad!!!!
@andrewwright901811 ай бұрын
Welcome back Brad! So good to hear from you, looking forward to whatever you make!
@Kurgutt11 ай бұрын
Glad you're back Bradley ❤ Can't wait to see more cutting edge efficient designs or some Bill shenaniganries in KSP 2
@ArmyPig00711 ай бұрын
Spaceplanes always feel like such a cheat but I love them so much because of it. Good to see you again Bradley, doesn't feel like it's been two years at all.
@leonidasi617011 ай бұрын
Holy crap welcome back!!
@clayel111 ай бұрын
woah, bradley is back!
@ethanochs157011 ай бұрын
The legend is back!
@NickBDesigns11 ай бұрын
Great to see you back in the saddle I am excited to see the progress this game makes in the future
@zachbowles451611 ай бұрын
oh my god hes back
@lb279111 ай бұрын
Glad you're back and with an excellent video to boot! As to the power of the nuclear engines: I think when the game came out they were so good you could build a spaceplane with only swervs. I hope they toned it down a little. I get why we need more efficient engines given they plan on implementing other star systems but they should be balanced in some way to the other engines, maybe make them massive or at least absolutely useless in atmosphere.
@epsiloneridani773711 ай бұрын
I was literally rewatching your eve 9t mission, and you drop a new one today. What a treat and it's never too long a wait for your content
@RadSlayer6711 ай бұрын
wonder how krumpf reacted to bill's long awaited return! (seriously though, welcome back!)
@SpaceMan22611 ай бұрын
the goat is back
@entropy133111 ай бұрын
So glad to see you back Brad!!!
@red12b11 ай бұрын
Yay! The return of Bill's Odyssey!
@Joshs4stro11 ай бұрын
welcome back!!!
@f4lenwarrior11 ай бұрын
Welcome back to content production, ive missed seeing your vids in my feed.
@dill247911 ай бұрын
so happy to see you back :D
@admiralfluffy4211 ай бұрын
Welcome back! Hope you’re doing well. Missed your videos.
@SpainSpace11 ай бұрын
As someone said, it really didn't feel that long since you last uploaded. Welcome back! I was happy to see the video notification pop up on my phone. Hopefully KSP2 gives us a second decade of great videos :)
@commonsenseless989411 ай бұрын
*ding* (Bradley Wistance video upload) Me: Woooooo!!! Yeah baby! That's what we've been waiting for! Thats what its all about!
@GarrettBodley11 ай бұрын
RETURN OF THE KING
@whatdadogdoin41911 ай бұрын
Welcome back to the internet, Brad! Glad to see you uploading again
@AeroplaneB2911 ай бұрын
Your Finally back! You were always my favorite KSP you-tuber
@kingofthewimps282811 ай бұрын
One of the most accomplished kerbalnauts has made a return.
@schrimblo11 ай бұрын
oh my god, welcome back bradley
@andrewelliott328411 ай бұрын
Very excited to see you back!
@GuybrushKerman11 ай бұрын
Well well well look who came crawwwwling back. So happy to wake up to a new Brad video waiting for me and very excited for the next! Always enjoy SRB only challenges, or perhaps a nuclear engine-only video to demonstrate how strong the new ones are?
@mephisto810111 ай бұрын
Hey, it's been a while sice I saw something from you too. Good to see all the folks somehow returning.
@GuybrushKerman11 ай бұрын
You'll have to wait a while longer (apologies) but my next project is in production. It's a big'un. Hopefully you'll catch it when it eventually comes out!
@linecraftman390711 ай бұрын
Welcome back Bradley! To build an interstage you can use the engine plates or tube parts, which are both procedural
@linecraftman390711 ай бұрын
Additionally, there are two nuclear engines in KSP 2. One is the same as in ksp 1, a nuclear thermal rocket which passes hydrogen over hot nuclear core and the second is a gas core NTR, which heats hydrogen with nuclear plasma, thus putting way more energy into yhe exhaust. Considering the game isn't making you use up uranium when you burn the engine, I'd guess it uses closed cycle. Soon we should also get a third NTR engine which has an afterburner mode that lets you burn the hydrogen with oxygen for more thrust.
@TheOneGaming011 ай бұрын
WELCOME BACK!
@feuby848011 ай бұрын
When I saw you posted, I immediatly watched. I Want an odyssey by bill mission on KSP2. No matter what. Put someone somewhere, rescue him, I don't care, I'm here just for the jokes and the story ! good to see you back !
@ChrisHovord11 ай бұрын
Yoooo Bradley!! so glad to see you doing videos again... I was generally wondering if we would see a return from you just a few weeks ago so glad to see you back. As for missions though I would suggest the Odyssey of Bill 2.0 of course, especially when they let us go interstellar with KSP2. either way looking forward to the break down of the math ( that I will never understand ) in future videos
@charliekempf11 ай бұрын
Always a good day when Brad uploads
@phillip911 ай бұрын
The Return of the King.
@Dinkymod11 ай бұрын
So happy to see some new vids - and of KSP2!! :-)
@timharnans11 ай бұрын
Thanks Brad, you made me remember I have KSP 1, I haven’t played it in probably a year.
@Countryballsandstuff99911 ай бұрын
Welcome back, Brad! We thought you were gone
@ruskiwaffle199111 ай бұрын
THE KSP KING IS BACK!!!
@GamingWithNikolas11 ай бұрын
Oh wow, welcome back!
@UnoReversecard-ys8vl11 ай бұрын
The legend is back!!
@jacksonclark358111 ай бұрын
And when the word needed him most…… He came back!
@proxima_fish11 ай бұрын
omg he's back :D
@SALTrobot11 ай бұрын
proxima sighting
@EnderRobber10111 ай бұрын
Welcome Back!
@tomblack45811 ай бұрын
THE LEGEND RETURNS
@Kennanjk11 ай бұрын
Nice new video.
@palauxhing11 ай бұрын
I literally just finished binging all of the odyssey by bill episodes earlier today, and suddenly Brad uploads again after 2 years.
@LostXOR11 ай бұрын
Glad to see you making another video!
@billdoor903811 ай бұрын
THE KING IS RETURNED
@alexadamsky11 ай бұрын
Return of the king. 👑
@xilia91111 ай бұрын
Return of the King
@SteinGaming200611 ай бұрын
This is why i stay subscibed
@agtshaw11 ай бұрын
welcome back king💪
@huntermclaren32211 ай бұрын
the legend returns
@volksgenosseerichhonecker510411 ай бұрын
This is very important regarding unrestricted angles: Turn of the Magnet Snapping and press shift while rotating. Then it will be smooth and you can choose an angle.
@AwesomeJack_2447611 ай бұрын
Dudes op for playing my fav game
@MinerBat11 ай бұрын
Also, the ability to thrust during timewarm now makes ion engines a lot more fun to use. Also there is a bug that if power runs out during timewarm with an ion engine the engine will continue producing thrust (despite playing the engine shutdown noise)
@necrosniper11 ай бұрын
I played through the whole of KSP 2 mission. A few tips I came across: Never trust the Dv readout. The thickness of wings matter when it comes to heat and aerobraking. The inflatable heat shield isn't reliable. There are a few new mods that will make everything so much easier: Science Arkive, Alarm Clock, Kerbal Life Hacks, Community Fixes, Micro Engineer, Maneuver Node Controller. Also, the Under Pressure mission is currently bugged probably due to vessel name change or docking and will not complete in some cases. Also if your craft wobbles and flys apart on the launchpad, returning to launch pad resets the craft and makes it a lot more riggid.
@plebicite370411 ай бұрын
the man myth and legend himself
@johnseekins385011 ай бұрын
Oh how we've missed you so Bradley!
@throwback1984111 ай бұрын
THE BOSS IS BACK and he's here to exploit the jank.
@TonyChan-eh3nz11 ай бұрын
>disappears for 2 years >Returns and makes video again >Gives us hope >As according to "youtube disappearing 101" disappear again to crush said hope(we haven't gotten here yet) I hope this doesn't happen