Stratzenblitz75 did a video lag-busting the game recently, and he found that the fuel crossfeed system: the way the game handles many engines using fuel from many tanks at the same time is horribly broken. and this can be worked around for high part count crafts by keeping the engines always only able to see/drain 1-2 tanks at a time. This could be of use if you ever run into a laggy situation? i hope this could help in the future.
You should look up how to do hyper-symmetry. It'd save you a ton of time when trying to place hundreds of engines. Also, when you are 3.5km above the mun? That's the best time to burn prograde to maximize the oberth effect and slingshot much further.
@Aaron If you are already planning to use the Mun for a gravity assist, you might as well also burn at Mun periapsis, rather than much later, say at the periapsis of the largest body (the sun). I almost always do this and save hundreds of m/s getting out of the home system (Rhode, in my case).
Instead of using multiple engine stages you can use one line of engines connected using fuel lines and drop emty tanks, way more optimum and weight/lag reducing
It pays to also drop some of the engines when dropping empty tanks. The only time you really need the extra engines is for getting into Kerbin orbit. Also... you don't really need fuel lines anymore. Just change the settings on the decouplers to allow fuel throughput.
One option you could have use (whilst using the method where you copied and pasted the same fuel tank + engines 2:37) would have been to use fuel pipes to drain the bottom tank into the uppers one, and to use all the engines of the rocket. When the bottom tank is empty, jettison it with its set of engines. That way your thrust/weight ratio would have been fine, and the craft would have been simpler
One way you might have been able to save some parts: enable fuel crossfeed on the decouplers, activate all engines at launch, and ensure the fuel priorities on the tanks are set so the bottom tanks drain first. Then you don't need nearly as many engines on the bottom stages.
ISP in vacuum: 290 Spider 315 Mammoth :) The little engines just aren't efficient. The Ant is the best of them in vacuum, but it's only equal to the Mammoth.
9:21 when making maneuvers you can double click the body you are going to while adjusting your maneuver to better see what your orbital line will look like after you enter it’s SOI
You actually can use the seat as the main control point. I do it all the time with aircraft, rovers, and really anything that needs to be small and lightweight.
What would be interesting but would definitely be a marathon would be rescuing all the stranded kerbals using landers of the same type as what stranded them there
If you're making your maneuver node you can hover over another body (like mun) and see periapsis and apoapsis if your trajectory in close enough to it. You can even have this display toggled by right clicking on the numbers iirc. Then you adjust the node and see the values change.
@@ReidCaptain if you focus a planet or moon you're adjusting your encounter with and zoom in close you'll be able to see your periapsis and trajectory. Useful for making fine adjustments to your trajectory from far away!
You increase the symmetry over 8 by taking a single part, doing a symmetry on that, then doing a symmetry with that, then put the part you want to have the higher symmetry with on it.
All I ever look at is the thrust to weight ratio and the Dv budget. That tell you whether or not you can get to where you need to go. Also helps to have a moon base to launch from.
I think if you'd have focused on the moon, you would see you eventual trajectory in the sphere of influence of the moon. That way you could have predicted if you were going to crash without trial and error.
Brother, spider engines probably don't eat much fuel, you could have gotten a small tank and ant engines for reduced weight more TWR, I got 2500 m/s delta V with the small fuel tank, and a pug engine for my probe. (You ended up doing that later, good on you) And why did you still bring a Kerbal if you had a probe core? Bruh, Kerbals have weight too.
I struggle to get to Minmus and you come along and use those tiny engines to get to a planet I don’t think I’ll ever get to. What’s sad is I’d make fun of these challenges and say something like “Now get to orbit without any fuel or engines” Except that’s been done. Someone has achieved orbit by only using decouples… You guys are insane
I wonder... for high part-count challenges like this - would it be better to simply enable fuel-transfer through the decouplers, and re-use engines across stages? You would probably need to add some fins to the bottom to stabilize the craft, but the weight savings from having fewer engines, plus the performance benefits of reducing the number of engines - I think it would work out better.
If you find yourself using a bunch of the exact same engine setup and dropping tanks you should really set up fuel flow priority and cross flow and just drop the tanks and save yourself the weight of the engines.
this brings back memories of when everyone did this😂 they used to have to mass and aerodorce, their small size made them "negligible" I guess😂 and well you had 1000 of em and the craft still weighed nothing
Tip thats too late to help you: Have all engines fire at launch and have pipes push fuel up between stages so that each stage lasts longer than the last one.
Initial thought; No, because the ant engine isn't really powerful enough to lift its own weight on kerbin. 5 seconds later: "Oh, the spider. Interesting." Didn't expect you to make it! Also, 6:08 Pretty sure the reason for this is because your engines are shooting fuel directly at your own ship.
Instead of having ring after ring of engines, why not use a single ring of engines on the top stage. Then just drop the fuel tanks below them as they empty. Just rig fuel transfer so the bottom of the rocket empties first. That way you're not carrying the extra weight of so many engines only to drop them and ignite new ones.
I'm so confused about the mun encounter section. There is a maneuver marker to indicate your expected periapsis + it'll be concrete after you've done the burn - should be no need to "check" by warping close, and if you messed it up you can correct this type of thing with ~10m/sec of delta v Even on an extreme budget where the 10m/sec is too much to spend, there's no need to warp closer, your periapsis should be displayed! Above about ~20-25km is guaranteed to be safe, at least on the mun.
Yeah, the orbital trajectory said I was going to slam into the moon but I was pretty sure that was just a graphical glitch. That’s a pretty ripe sentiment 🤣
What should the next "going to _____ using only ______" be?
going to the moon using only decouplers
going to pol only with nucliar
Going to duna with kraken engines
Ions to duna
going to pol using only reaction wheels
I can imagine the media circus if NASA tried to put that makeshift crew capsule into space
I think the FAA would laugh when they saw the design
@@astron4606 FAA certification? What's that?
@@vsetenjoyer The Federal Aviation Administration, you have to prove your vehicle is safe to them before you can do crewed flights irl
@@astron4606 No no, I know I was making a joke.
@@vsetenjoyer a traffic light that never changes from red
Stratzenblitz75 did a video lag-busting the game recently, and he found that the fuel crossfeed system: the way the game handles many engines using fuel from many tanks at the same time is horribly broken. and this can be worked around for high part count crafts by keeping the engines always only able to see/drain 1-2 tanks at a time. This could be of use if you ever run into a laggy situation? i hope this could help in the future.
i cant wait to see the insane things this man will do when KSP 2 comes out
Whenever that may be lol
The insane thing would KSP 2 actually releasing
KSP 2 got canceled the studio went bankrupt sadly
Maybe some day...
@@lonkthesoupknight1315 wtf
The parachute was actually useless weight. Kerbals on external sits can deploy their own parachute and it would allow you to glide pretty well
Maybe he played earlier version
@@Austeja608why would he have? he has no mods
I love your system of just putting kerbals in space and completely stranding them
the ultimate challenge: go to eve and back with only RCS
no jool 5
You should look up how to do hyper-symmetry. It'd save you a ton of time when trying to place hundreds of engines. Also, when you are 3.5km above the mun? That's the best time to burn prograde to maximize the oberth effect and slingshot much further.
@Aaron If you are already planning to use the Mun for a gravity assist, you might as well also burn at Mun periapsis, rather than much later, say at the periapsis of the largest body (the sun). I almost always do this and save hundreds of m/s getting out of the home system (Rhode, in my case).
@@oasntet Wow wow slow down i got lost
casually taking just shy of a year to land a trash can on a giant rock
I never played kerbal but i love watching this series, especially rescuing the lost guys on other planets
Instead of using multiple engine stages you can use one line of engines connected using fuel lines and drop emty tanks, way more optimum and weight/lag reducing
It pays to also drop some of the engines when dropping empty tanks. The only time you really need the extra engines is for getting into Kerbin orbit.
Also... you don't really need fuel lines anymore. Just change the settings on the decouplers to allow fuel throughput.
One option you could have use (whilst using the method where you copied and pasted the same fuel tank + engines 2:37) would have been to use fuel pipes to drain the bottom tank into the uppers one, and to use all the engines of the rocket. When the bottom tank is empty, jettison it with its set of engines. That way your thrust/weight ratio would have been fine, and the craft would have been simpler
Yup, would have been good!
@@ReidCaptain People often call this "Asparagus staging" and it is indeed very useful in KSP.
It would have worked, but the horrible crossfeed mechanics would make the lag horrible
@@jonmab6990 The lag is absolutely tiny when compared to the lag of adding THAT many "extra" engines.
@@SephirothRyu I'm talking about when it's used at a large scale, such as an eve return mission. I'm not really concerned with smaller crafts
One way you might have been able to save some parts: enable fuel crossfeed on the decouplers, activate all engines at launch, and ensure the fuel priorities on the tanks are set so the bottom tanks drain first. Then you don't need nearly as many engines on the bottom stages.
Reid actually using an efficient engine for once! (:
But pointed at fule tanks
ISP in vacuum:
290 Spider
315 Mammoth :)
The little engines just aren't efficient. The Ant is the best of them in vacuum, but it's only equal to the Mammoth.
I love how this guy has like a 5 second intro and just gets right into content
It bugs me so much that you don’t just fire up all the engines on launch and use fuel priority to drop tanks.
this
9:21 when making maneuvers you can double click the body you are going to while adjusting your maneuver to better see what your orbital line will look like after you enter it’s SOI
you should bring all the kerbals back home with one rocket
nah that's a job for the blunderbirds
You actually can use the seat as the main control point. I do it all the time with aircraft, rovers, and really anything that needs to be small and lightweight.
What would be interesting but would definitely be a marathon would be rescuing all the stranded kerbals using landers of the same type as what stranded them there
This has actually helped me in ksp I did not know that there was a thrust to weight ratio thing in a menu and I struggle with gravity turns so thanks
bro it's been 3 years since that update how did you not know that
01:00 barely getting off the launch pad? bro, check yo stagin`! u got a chute pulling u down
If you're making your maneuver node you can hover over another body (like mun) and see periapsis and apoapsis if your trajectory in close enough to it. You can even have this display toggled by right clicking on the numbers iirc.
Then you adjust the node and see the values change.
Didn't know it was togglable, that is handy. Thanks!
@@ReidCaptain if you focus a planet or moon you're adjusting your encounter with and zoom in close you'll be able to see your periapsis and trajectory. Useful for making fine adjustments to your trajectory from far away!
I live in the matrix. I was just watching his video of rescuing Jeb and wondering when he would rescue the others. I can tell the future!!
Could’ve saved even more weight by just having the kerbal parachute
LETS GO! Ksp is definitely my favourite series of you
Asparagus staging would have helped a lot here.
I have a challenge for you try fly to moon without engines. With sling, catapult or something, i dunno.
This is mostly a joke, but if you can do this it would be cool.
One question...should it land safely or just perform a lithobr(e)aking with rapid planned dissasembly?
kracken drive :p
Decouplers and an EAS seat
He said fly to the moon, not land safely.
You could have saved a few extra dv by staging the faring as soon as you broke 70k meters. The faring was almost half a tonne.
Great job! Now you've stranded a Kerbal on another planet with no hope of rescue. 🥳🥳
You increase the symmetry over 8 by taking a single part, doing a symmetry on that, then doing a symmetry with that, then put the part you want to have the higher symmetry with on it.
Brotip: Look up the KSP symmetry trick, it makes the rings look prettier and makes the construction take up much less time.
were you planning on going to eve from the start or did you decide to go there when you noticed the orbits lining up?
Before I launched I had to wait for a transfer window, but the way it lined up was far closer than I was expecting
Quick tip, when making stages in atmosphere an ideal twr is ~1.2-1.3 (you can view that by right clicking the stage on the staging bar)
loving these kerbal videos! here's a quick tip, there's a setting to increase the minimum brightness so you can see in the dark.
Try to transport as many kerbals as you can, but with 1 engine. It can be any engine, but it has to be 1
And no refueling*
@@NotHereLookAway yea, that would be difficult
going to every planet with ant engines
All I ever look at is the thrust to weight ratio and the Dv budget. That tell you whether or not you can get to where you need to go.
Also helps to have a moon base to launch from.
1:40 research "ksp symmetry glitch" that will be helpful
Spider has worse vacuum ISP, but better sea level ISP than Ant
I think if you'd have focused on the moon, you would see you eventual trajectory in the sphere of influence of the moon. That way you could have predicted if you were going to crash without trial and error.
Now I want you to make an asymmetric rocket and no reaction wheel usage. And A limit of 4 parts of tanks and 6 parts reaction control rockets.
Your destination is a 2 parter the moon to collect a kerbal and landing on an asteroid the smallest 1.
Crew:How am I suppose dot get back home?
Reid: that’s the near part, you dont
When you're planning maneuvers you can select a planet and there will be a "set focus" button. You don't need to suffer like this
Seriously. That looked so frustrating when it didn't need to be.
ur ksp vids are enjoyable
Brother, spider engines probably don't eat much fuel, you could have gotten a small tank and ant engines for reduced weight more TWR, I got 2500 m/s delta V with the small fuel tank, and a pug engine for my probe.
(You ended up doing that later, good on you)
And why did you still bring a Kerbal if you had a probe core? Bruh, Kerbals have weight too.
Kerbals are cool
That device at four minutes was the Green Goblin's dream
Lol this is awesome. I have a challenge. to go to duna and land safely, and if your feeling up to it, return to kerbin
And now you've got to call the BlunderBirds to rescue the poor Sonpond Kerman
After that mun slingshot sequence...I tried that once and it worked flawlessly. First try. Did I...did I just get lucky?
You had BETTER save my boy Sonpond
I struggle to get to Minmus and you come along and use those tiny engines to get to a planet I don’t think I’ll ever get to.
What’s sad is I’d make fun of these challenges and say something like
“Now get to orbit without any fuel or engines”
Except that’s been done. Someone has achieved orbit by only using decouples…
You guys are insane
Use r to switch to mirror mode, also click the little circle for hexaganol attatchment mode, its just better
Alternate title : sending a kerbal to kerbonaut jail with maximum efficiency
I wonder... for high part-count challenges like this - would it be better to simply enable fuel-transfer through the decouplers, and re-use engines across stages? You would probably need to add some fins to the bottom to stabilize the craft, but the weight savings from having fewer engines, plus the performance benefits of reducing the number of engines - I think it would work out better.
SpiderRocket SpiderRocket doing all the things that SpiderRocket does
If you find yourself using a bunch of the exact same engine setup and dropping tanks you should really set up fuel flow priority and cross flow and just drop the tanks and save yourself the weight of the engines.
reid has never heard of symmetry
Omg first time seeing this game 😱wow it is awesome 👍
please try to build an missle launcher that can succesfully hit targets while flying
Imagine ksp 2 to be very optimized for huge ships !! It would be amazing 😍
* casually places parachute bigger than the crew mate on the small rocket*
no way. 20 gigs of ram.
Now get off eve
this brings back memories of when everyone did this😂 they used to have to mass and aerodorce, their small size made them "negligible" I guess😂 and well you had 1000 of em and the craft still weighed nothing
Ok but now you have to bring the Kerbal back using only tiny parts
I have a challenge for you try fly to eeloo with the spark engine
Cool
I have no idea what he's talking about but God do I love it 😄
Love your content!!!
Tip thats too late to help you: Have all engines fire at launch and have pipes push fuel up between stages so that each stage lasts longer than the last one.
Take a kerbal to land on vall and back to the kerbal space center. The challenge is that your tank to engine ratio must be 1:1
Initial thought;
No, because the ant engine isn't really powerful enough to lift its own weight on kerbin.
5 seconds later: "Oh, the spider. Interesting."
Didn't expect you to make it!
Also,
6:08 Pretty sure the reason for this is because your engines are shooting fuel directly at your own ship.
I don't know a lot about ksp. But I like spiders, and this video was interesting!
I only watch this channel for the KSP content
Next time: spider-only rescue mission
you can fine tune a manuever to an encounter by focusing on the planet. the orbit is much easier to see
Next video, rescue a kerbal from Eve
Instead of having ring after ring of engines, why not use a single ring of engines on the top stage. Then just drop the fuel tanks below them as they empty. Just rig fuel transfer so the bottom of the rocket empties first. That way you're not carrying the extra weight of so many engines only to drop them and ignite new ones.
I'm so confused about the mun encounter section. There is a maneuver marker to indicate your expected periapsis + it'll be concrete after you've done the burn - should be no need to "check" by warping close, and if you messed it up you can correct this type of thing with ~10m/sec of delta v
Even on an extreme budget where the 10m/sec is too much to spend, there's no need to warp closer, your periapsis should be displayed! Above about ~20-25km is guaranteed to be safe, at least on the mun.
Imagine the failure rate on a rocket with this many individual parts.
Fail rate: 98%
@@notjebbutstillakerbal just like Soviet moon rockets
It takes about 900 m/s to leave Kerbin and 100 to get to Eve. You burned 250 m/s when you were close to Eve‘s orbit so you were very inefficient.
Ant Engine based space craft looks so mutch like space X one
now try getting him back with monopropelent engines
kerbal rescue mission doing only spider engines now
You can use the 64x symmetry glitch to make placing the engines easier.
Symmetry glitch would have really helped here…
You can get to the moon with only the spider engines but I can’t get there at all
you can only use each part once
Carbon foam with mushroom leather for the seats
Love these!
Explosives
Make an orbital missile
Make an Intercontinental Ballistic Missile
Make a interplanetary missile
Hello! I love your videos!!!
"I had no lag so Im going with this design" Most players have been there xD
Now get the Kerbal back to Kerbin.
"probably or else i would have posted this video"
lol
I had no idea the kerbal could explode! XD
Yeah, the orbital trajectory said I was going to slam into the moon but I was pretty sure that was just a graphical glitch. That’s a pretty ripe sentiment 🤣
Ok so if Elon Musk is building big engines is to avoid the lag, I get it now.
Ok. Now do this but return back to kerbin.
Make a car in kerbal space program using kerbals as wheels