I was a diehard rocketer (5k hours or so) until a month ago and then suddenly got the spaceplane bug, I can now see why some people (*cough*Val*cough*) come out with dozens of designs: it's neat when it works so well. Kerbal Space Program, how do you disable autosave? Another way to manage this is to mount your wings above your CoM. jet engine efficiency in this game is based on built in thrust curves. What i do when i build a plane (except the tings others allready mentioned) is playing a lot with the Fuel sliders on fuel tanks in SPH and then moving the tanks and adding removing "balance mass" to the plane untill the COM doesnt move at all relatively to COL, no matter how much fuel i have with tanks. Some more advanced tips you can use in the guide: In stock (no FAR) game to have a stable plane its also important to place control surfaces behind the wings, since their lift increases faster with AoA. Nothing bad will happen. I'd start with a lawn arrow that can be hardly pulled up, horrible to maneuver, with CoL way behind, but rock-stable. Such a simple and basic tip, but so unknown throughout KSP. Sorry if this is just too basic, it is kind of for beginners, edit: [snipped the stupid thought] i need to stop trying to post when dead tired, I like rules of thumb like these All the info you need without getting bogged down with specifics, Just a quick FYI, you say that CoL is center of thrust and CoT is center of lift; these are the wrong way around. The more intakes added, the higher a plane can go before a flame-out, which makes multiple intakes a must on SSTO spaceplanes. Archived post. I have some really good tips and tricks to add to your tutorial,but Im on my phone at the moment. I've never found them to be practical (at least on Kerbin) for anything except short flights around the KSC and flying to the island runway and back. A Screenshot of Kerbal Space Program. First off, make sure you are using the newest version of Kerbal Space Program, and it is NOT pirated, when you buy it, the devs get helped out. Do you by chance know how much the thrust varies with these small velocity perturbations? Things that work at low altitude don't work so well up high and the plane ends up going up and down while slowly losing speed until it can't maintain altitude anymore. Yes, although they have only been flown with nearly full tanks. As with everything in KSP, experiment, experiment, experiment. Then at the top, we'll put one tail fin, centred on the end of the fuselage. Are there any canonical examples of the Prime Directive being broken that aren't shown on screen? It uses six Mk 1 utility bay-mounted Junos for hovering. You can park a ship into an elliptical . These tend to handle . Have fun with your S/VTOL craft and don't forget there are more ways to do them as well, including helicopter-like things that don't fly aerodynamically at all. In that vein I drag optimized the Karmilla, and added science parts. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. You can horse hundreds of tonnes, up and down both, with the standard canard pieces. If the fuel flows from the. 5. Unless you are using canards (not ideal for lots of reasons, IMHO), adding elevons will pull the CoL backwards since they also provide lift in their neutral position. As you reach 100m/s, hold S to pull the stick back, and you should be in the air! For your first flight, it may be easiest to ignore yaw altogether and just maneuver by rolling slightly and pitching. by fixing the suspension issues the need to sacrifice traction, and in turn, braking power, is not needed. This guide also applies to STOL (Short Take-Off and Landing) aircraft which do their thing using downward-pointing jets or rockets, because they're pretty much the same thing. To fly a VTOL craft, you need to be able to perform the following actions, which must be bound to a an action group: If you have full RCS control, you will additionally need control for that, and if your hoverjets are inside pods, you will want a control for toggling them too. Standard KSP airplane-stability request: post a screenshot of your airplane in the SPH, with the center-of-mass, center-of-lift, and center-of thrust markers shown. Roll is the main way to change direction in flight, and best way to crash the plane on the ground. Getting a plane of the round isn't that hard. The craft will lift off once generated lift + hoverjet thrust overcome its mass. So the ones that go straight up and down can only be straight up and down, no angling left, right, backwards or forwards such as when you place the little wheel on the angled body of the cockpit part. Stunt planes tend to go for the latter layout and use powerful ailerons, because getting more roll authority is easier than getting more pitch and causes much fewer knock-on effects. All three wheels (one steerable in front, two fixed in back) are mounted with angle snapping, symmetrically, Wheels are mounted to the fuselage, rather than to the wings (which flex under load), Center of lift is behind center of mass, and slightly raised, Rear wheels are in front of tail, but not enough to make tail strikes easy. Go ahead and make a new save file or use an old one, it doesn't matter! You can post now and register later. I have a simple Vtol SSTO that can take off with junos, hit LKO with rapiers, maybe with 100 m/s left on the rocket side, then return to spaceport and have sufficient liquid fuel for vertical landing. Powered by Invision Community. Cookie Notice If you placed the main wings at the centre of mass and then added the smaller wings behind, this should be correct already. Terriers will also work on Duna. 2023 Take-Two Interactive Software, Inc. A basic tutorial on building a single prop plane. You need to sign in or create an account to do that. It can be as crazy or as normal as you want, just remember these basic tips, 1. That is something I am really looking forward to. You do need rather a lot of them. However, don't put any fuel tanks on it yet, and empty any fuel-containing parts that you are using. I'm trying to build a high altitude plane and have found out that the rules are different. Finally, it is really difficult to land a HTOL atmospheric craft on Duna because of the thin air: you'll be going really fast and terrain is really bumpy, so there's a huge risk of ending up as a big ball of fire, whereas it's very hard to land a conventional rocket lander precisely,like when you're aiming for your surface base. Rasterpropmonitor for Kerbal Space Program, How can I cheat docking in Kerbal Space Program. high altitude flight :: Kerbal Space Program General Discussions It is also said that a good landing is one you can walk away from. SAS sees this and turns the other way, which just causes the same problem in the other direction. 1. Level:Intermediate/Advanced:You need to be able to slap together a plane that flies reasonably well before attempting a VTOL.Background reading:Start with the fantastic Basic Aircraft Design tutorial in this very forum.Craft used to illustrate this tutorial: VTOL stands for "Vertical Take-Off and Landing." We look at the principles behind designing a basic jet. A V/STOL atmospheric craft built for Duna can drop you on any dime, anywhere on the surface. Valve Corporation. It only takes a minute to sign up. One point I would mention is that the more wing area you have relative to your control surfaces, the less angle of attack you can generate. From my experience using a panther it starts to lose speed after 15-16 kms, a more suitable cruising height is 9-13km. Check out Mike from Merrimack, New Hampshire as he explains to filmmaker Rod Webber what' Absolutely! Tutorial: Your First Plane - Kerbal Space Program Wiki Pasted as rich text. You too!Like - Subscribe - Check out my other tutorials. Thank you and happy landings. Two MacBook Pro with same model number (A1286) but different year. They both create a dihedral effect, tending to return you to level through a roll-sideslip interaction. Tutorial: Basic Plane Design - Kerbal Space Program Wiki Throttle up to full, activate SAS, stage to start the engine (you'll only have one stage here), and start rolling (or sliding) down the runway! ps. So you want to make a plane but all your contraptions explode on the runway, crash into the runway a few seconds after taking off, crash into the side of the runway, crash into the ocean after doing a tight turn or otherwise fail to do what you intended? Except for the parts regarding drag and number of intakes, everything else is still very valid. Put the big wings right at the back of the plane. If you forget to put an air intake on your airplane, don't worry! The hoverjets are housed in the big wing-mounted pods. We look at the principles behind designing a basic jet. I had my rear wheels mounted on the tail, and it seems the taper of the tail messed up the angle of the wheels creating instability. Guest, It is only visible to you. Now for wings, the "Wing Connector Type B" is the largest you have so far; connect a set of those where the centre of mass is. Now, imagine it forward, it will stall like a REAL plane and will go forward, Front is on the left, and back is on the right. Things get ugly!!). Then go into the move part thing with the "2" key in the editor, remove the degree setting, and then drag them apart manually and position parts with fine tuning that way. My Hats off to Brikoleur, as a fellow VTOL/general spaceplane [stock] enthusiast, your tips were easy to read and right on the money! Finally you need to make sure it's all balanced, this means the centre of lift marker needs to be very slightly behind the centre of mass marker. In a twin-boom design, you have one hoverjet at the nose, and one in each of the booms. If I'm running something with a long delta-wing layout, I'll then use canards and have the dynamic instability to allow for manouvering; if it's something without a lot of pitch inertia, I'll go tail stabilizer. Try not to make your first airplanes longer than 3 MK1 fuselages. one last thing to verify: look from the side, observe where your center of mass is, then how the control surfaces are located relative to it and if the way they react to your controls makes sense (just try to pull up, down, or roll, on the runway without even starting the engine or disengaging brakes and watch which way the control surfaces move). In other words, your fuel tanks need to be placed symmetrically around the centre of mass so it doesn't shift as the tanks dry, and you need to get your vertical thrust vector exactly aligned with said centre of mass. I haven't found a sure-fire solution to this, but I think I know what causes it. First, @TheEnvironmentalist There is one more method I'm sure would work in your case, although I didn't write about it because I think it's, Hahaha absolutely right, but distinctly less satisfying. Ok, you will want to start building. You would need to get down into the 37k-45k zone to aerobrake enough to come down in one orbit. Powered by Invision Community. If it starts tipping in one direction, you're really likely to flip over and crash dramatically, like a tree falling over. Wings on the front of the craft can cause pitching and rolling, causing you to hold W constantly. Unfortunately, with only these basic parts, landing on the runway won't be easy; a viable alternative is to throttle down to nothing, then belly-flop in the ocean. @gocket the reason why your solution works is because you are counteracting the imbalance of friction in the wheels as they wobble. Also, lift is usually placed in the middle-to-back of the wing, depending on the shape. This reduces the amount of trim you need to apply to get the craft level in flight. Also, I would like to know how I can tweak my aircraft to make them smooth at the controls. I might try to write a more advanced guide for spaceplane construction. Here's how you go about building a VTOL under these constraints. If it doesn't, he can just make the stabilizer bigger; instead of turning down control authority, just add more fixed wing. This happens in two instances; initial placement and plane body deformation. If you have an account, sign in now to post with your account. Really nice overview and some incredible looking craft! By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Interesting design!! front, then it automatically disbalances the weight moving the weight to the back. You should be able to navigate fairly readily, and with the superb efficiency of jet engines, you should have plenty of fuel to go anywhere you need to go. How do I build a good stable basic plane? : r/KerbalAcademy - Reddit To do this, take a few barrels of your jet fuel, stick them on the back of your aircraft. That way you can tuck them away for normal flight, and expose them for hovering. Does the order of validations and MAC with clear text matter? They sometimes coincide with ailerons on some, more space-economical, aircraft. (if the front gear is the same ditance from the CoM as the 2 rear gears. Intriguingly, there is one thing I've found that does prevent the wobble from starting, and that is to use a single engine mounted directly on the back of the fuselage, which prevents using a tail and is ultimately a fairly significant restriction to build around. the front should be close to double the rear gears strength) And Good Guide! Pasted as rich text. Otherwise, you can either shift your wings till it's right (though this may crowd them near the back), or you can very slightly rotate the big wings so they're slightly higher near the front of the plane. You want an elevon on each set of wings. So, if you're having this problem then. Before building planes though, there are some inportant things to know. Then this tutorial is for you. Can I use the spell Immovable Object to create a castle which floats above the clouds? Aim to get your speed below 50m/s, and have plenty of water ahead of you; keep the plane level, and pitch up to shed velocity. Because of that if you for example place control surfaces at the front you can make a plane that has CoL behind CoM (like in the picture) unstable because CoL will drift forward past CoM as AoA increases (contrary to your 4th point).
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