ksp how to make a stable plane

Hi all so I accepted a contract to do temp scans on Kerbin and guessed a plane was the right way to do it so I made this. Here is your convenient solution to this problem! If that all fails, you may try building your plane lighter and with mightier (or just more) engines, so it just doesn't have the time to start misbehaving on the runway before you bring it up in the air. https://wiki.kerbalspaceprogram.com/index.php?title=Tutorial:_Your_First_Plane&oldid=103052. Remembering the FW TA152 and the U2 I put long wings on it and while its turn rate makes an airliner look like a fighter plane it is stable enough at 19000m. I'm finding it quite surprising you didn't manage to get the plane to fly yet. Body deformation can be caused by heavy parts, many parts connected together, or forces on the plane. I decided to look into that two intakes thing, and it turns out to make 11-12 m/s difference at 19,000m with my plane. People put waaaaaaaaay too many control surfaces on things from a lot of the screenshots I see. The best answers are voted up and rise to the top, Not the answer you're looking for? - but they were talking about having two intakes/engine. For more information, please see our Aircraft are surprisingly difficult beasts to build and control, building a stable, flyable aircraft is surprising complicated, so this is the first of a num. If you're going for full VTOL you need to have a TWR > 1.0 at take-off weight; adding more vertical engines will make vertical landings easier and (if they're air-breathers) will make it possible to operate at higher elevations. Pasted as rich text. Clear editor. Ill edit this sometime this week. If you placed the main wings at the centre of mass and then added the smaller wings behind, this should be correct already. http://kerbalspaceprogram.com. NEVER go forwards, causing the aircraft to crash itself. Your, Add enough downward-pointing jets to lift the plane, as symmetrically as you can around the, Adjust the thrust limiter on the fore (or aft) hoverjets until the thrust vector lines up with the. So thanks for the pointers - I'll take a look (and try to cure my prejudice re canards). Center of Mass - The average of all weight on the plane, this tool will show where gravity will pull . In that vein I drag optimized the Karmilla, and added science parts. Part of the reason I like the standard canards so much, though, is because they're an all-moving surface, which means you get the maximum possible profile changes with your commands. 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. Your plane is almost finished. This can be most helpful when transitioning to or from level flight. Hi @Brikoleur, nice work! The downside is that it isn't as pretty, but it *does* top out at mach 1.8 with a humble wheesly. The second one is likely to be aerodynamics if you just stick on some downward-pointing jets, you will find that they produce a lot of drag, which is going to be really inefficient. Please consider starting a new thread rather than reviving this one. How do I make aircraft stable & smooth to control? This happens in two instances; initial placement and plane body deformation. I haven't found a sure-fire solution to this, but I think I know what causes it. The CoL (Center of Lift) is a blue ball. Things get ugly!!). You would need a lot of orbits at 69 km to come down into the ground. If the CoM is in the back, then it will ALWAYS not be able to get out of a stall, flatspin all the time, and will be an all around horrible plane. There are a few missions for which a VTOL aircraft is ideal. Simply changing the intakes made it fly completely out of control and impossible to land. Mach speed - 343 mps. +1 for "If that all fails, you may try building your plane lighter and with mightier (or just more) engines, so it just doesn't have the time to start misbehaving on the runway before you bring it up in the air." Their hoverjets just have a TWR of less than 1.0. Additionally if you have any off-center fuel tanks, double check the fuel is drawn from both at the same rate (same priority). Congratulations! Set up your control scheme: one action group for toggling the hover jets, another action group for toggling the main jets, plus yet another one to toggle the hover jet bays, if you're using them (as you should). principle. This one is balanced with reaction wheels. Yes, although they have only been flown with nearly full tanks. When your airspeed is near zero and you're above your landing spot, reduce throttle until you start descending. Love it!! One challenge I've run into for myself with more elegant VTOL SSTOs is low-speed-hover controllability; beyond using brute-force RCS or SAS. Adding a vertical intake helps. Switch on the CoM and CoT overlays. In other words classic tripod. 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! They optimize use of oxidizer in SSTOs. They sometimes coincide with ailerons on some, more space-economical, aircraft. Wings on the front of the craft can cause pitching and rolling, causing you to hold W constantly. https://wiki.kerbalspaceprogram.com/index.php?title=Tutorial:_Basic_Plane_Design&oldid=97453, In the front of the plane - In this position, the control surfaces are also known as , In the back of the plane, on the tail - The most usual position; usually, close to the rudder. Making a fuselage. 2023 Take-Two Interactive Software, Inc. Do you have a picture? Espaol - Latinoamrica (Spanish - Latin America), https://steamcommunity.com/sharedfiles/filedetails/?id=1933948095, https://steamcommunity.com/sharedfiles/filedetails/?id=1933948668, https://steamcommunity.com/sharedfiles/filedetails/?id=1934517923, https://steamcommunity.com/sharedfiles/filedetails/?id=1335577943, https://steamcommunity.com/sharedfiles/filedetails/?id=1640213502, https://steamcommunity.com/sharedfiles/filedetails/?id=1640214586, https://steamcommunity.com/sharedfiles/filedetails/?id=1937826505, https://steamcommunity.com/sharedfiles/filedetails/?id=1937931692. I really hope that this will help you, if you would like more tutorials, click these links: Hello, today I will be showing you how to make an absolutely perfect space plane! You can park a ship into an elliptical . This item will only be visible in searches to you, your friends, and admins. Best way to get down into thicker air and land is to perform what dogfighters called a 'Split-S'. Kerbal Space Program, how do you disable autosave? If you believe your item has been removed by mistake, please contact, This item is incompatible with Kerbal Space Program. Intakes are your friend when you use liquid fuel. Also stock fuel priority is in 1.2, allowing very stable CoM builds. Note the landing area markers. An aircraft without control surfaces is like a rocket without RCS or reaction wheels - it will hardly turn and will be equally hard to control (perhaps even impossible!). Also there it's important to place small landing gear after setting up CoL to CoM relation since it's mass is calculated in CoM in SPH/VAB but not counted in flight. As with everything in KSP, experiment, experiment, experiment. 2023 Take-Two Interactive Software, Inc. Also, excessive use of the rudder usually causes the plane to spin out of control and crash. ps2. On 11/1/2018 at 10:54 AM, Brikoleur said: On 1/25/2019 at 4:03 AM, panzerknack said: This thread is quite old. OK, I have a really pedantic question here: Is it even possible to have a practical VTOL craft without using the unlimited fuel cheat? You've landed. I didn't try for 20000m as it probably wouldn't do well. Before you can make a successful plane, you must understand what makes a plane go in places other than the ground - the wings. And there's the ever awesome 101 from @keptin. and our The solution is to house the hoverjets in a cargo bay of some kind, with the doors opening downwards. (The spacing of COM and COL in your second picture is about right.) Also stock fuel priority is in 1.2, allowing very stable CoM builds. You too!Like - Subscribe - Check out my other tutorials. The first challenge you're likely to hit is choice of hoverjet. Your main lift, though, should always be as closely centered on your CoM as you can manage. I've been having some trouble lately in newer with respect to air flow. Not so with VTOLs: if the CoM shifts, you're not going to be able to land vertically anymore. It is only visible to you. She has a horrible turn rate and oscillates a couple of thousand meters at cruise, but it's flyable. Display as a link instead, @TheEnvironmentalist No clue, but it doesn't need to be much because it's a feedback loop. Espaol - Latinoamrica (Spanish - Latin America). i recently used a single whiplash plane and was able to maintain a stable 21-22k meter altitude. Note: This is ONLY to be used to report spam, advertising, and problematic (harassment, fighting, or rude) posts. You may be correct and that 3 engine plane is a lemon. @gokcet @DANKTER I usually run my front wheel override friction on 0.3 when the front gear has steering disabled, it needs lower friction. You can "smooth" controls by toggling capslock on your keyboard, the control indicators in the bottom left will turn blue from orange and they are instance dependant (if you revert your flight you'll have to toggle capslock again). This plane will be able to take off, travel somewhere, perform a crew report, and then land. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. The BAK Cyclone hard at work on Duna. For most small-to-normal-sized craft, you should end up with CoL sitting right at the back of the yellow CoM ball. It is entirely powered by Terriers. Then I'd go with moving it towards more maneuvrable by moving CoL towards CoM. "Type E" is the smallest you should have, and you want a set of those connected at the back of the fuselage. Touch down, CUT throttle, CUT engines, BRAKES ON. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Build yourself a plane. 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. How do I build a good stable basic plane? Wheels need to be touching the ground exactly as they were intended to, you cannot angle them in any direction other then their intended direction when placing them. What is this brick with a round back and a stud on the side used for? I moved the wheels from the tail to the fuel fuselage, and now she takes off like a dream! Hovering is expensive but you don't really need all that many seconds of hover either for take-off or for landing. I don't have that other stuff yet. We're also not discussing helicopters here, because stock kerbals have not invented the propeller, and stock propellers are a whole big topic of their own. These should be in the bottom left next to the display of the cost of the aircraft. All trademarks are property of their respective owners in the US and other countries. My Hats off to Brikoleur, as a fellow VTOL/general spaceplane [stock] enthusiast, your tips were easy to read and right on the money! Arqade is a question and answer site for passionate videogamers on all platforms. Most of my planes I'm able to knock each of them down to 40% and still perform 7-8G maneuvers. Also as others have pointed out, keeping the COM/COL/COT alignments proper is essential for aircraft. You may need to change control authority to a negative value if they bend "the wrong way". Kerbal Space Program max Surface Sample storage? You can post now and register later. Please see the. Now I have a plane that will fly around the world at an altitude of the low-20s. Interesting design!! Good, strong control authority - instead of reducing the pitch control authority, make the plane aerodynamically stable, so that even if you do flip it, it will right itself. In a twin-boom design, you have one hoverjet at the nose, and one in each of the booms. You may need to add several on bigger craft. You want an elevon on each set of wings. The BAK Karmilla. That SAS can hold a craft stable doesn't mean it's a stable craft. All rights reserved. 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. If you have a delta wing with a slight AoA and pitch-control elevons at the back, I also find it works well to rotate the elevons back to the pure horizontal. Next you need landing gear. Two MacBook Pro with same model number (A1286) but different year. Note: Your post will require moderator approval before it will be visible. At low speeds, this difference can be significant. 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. Enable mirror symmetry to save yourself some alignment effort. 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. Light craft have a single engine at the rear of the fuselage. Any insights? front, then it automatically disbalances the weight moving the weight to the back. Better still, three screenshots showing side, top, and rear views. 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). That should just about do it for basic planes. Can I use the spell Immovable Object to create a castle which floats above the clouds? When off the ground at a sufficient altitude to clear obstacles, main jets ON, When at sufficient speed for aerodynamic flight, hoverjets OFF, pods CLOSED, gear UP. The procedure for a vertical take-off is as follows: The procedure for a short take-off is the same, except that forward jets and hoverjets will both be ON from the start. I have some really good tips and tricks to add to your tutorial,but Im on my phone at the moment. For the vertical engines, do you also need to have some verticalintakes? You can post now and register later. You can pick the main cockpit and rotate the whole craft with it in SPH to see where your CoL will drift. Your CoT vector will disappear. It's said that takeoffs are optional but landings are mandatory. The BAK Cyclone, delivering a station module to Duna. Valve Corporation. Here's how you go about building a VTOL under these constraints. Plane body deformations can cause the wheels to touch the ground at a slightly different angle. A Screenshot of Kerbal Space Program. Interesting, though even being exponential theres a chance it starts out so small it takes longer than a takeoff to reach noticeable levels. I would really suggest this guide for beginners trying to get into the world of planes in Kerbal Space Program. If additionally you can give it a controlled tilt and hold it there, then it'll start accelerating in that direction, like a helicopter. Also, layout matters: aircraft with a wing that runs along the length of the craft, but with a narrow wingspan (like the Mk2 fuselages or wing strakes, and to a lesser extend swept or delta wings) will take more effort to pitch over but will roll very, very easily. Guest, From my experience using a panther it starts to lose speed after 15-16 kms, a more suitable cruising height is 9-13km. The Kerbal Space Program subreddit. You don'thave touse their fuel capacity you might want to leave them dry if they're not symmetrical to the CoM. Once you got a hang of these, try bigger stuff. Hit the launch button and watch your magnificent bird fly! I've covered all my bases, as far as I can tell: It seems if I turn off SAS, I can prevent the oscillation from starting as it's initiated by some control input, whether from me or SAS, but then the plane veers off the runway until it hits something. If you forget to put an air intake on your airplane, don't worry! LTTP but anyway: the question is, practical for what? I've found that all my runway wiggling planes are caused by the wheels. First off, make whatever you want, just, start off making sense. So if you're getting those flame-outs, add more intakes until you don't get them anymore. All rights reserved. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Check out Mike from Merrimack, New Hampshire as he explains to filmmaker Rod Webber what' 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. But it flies horribly, it's all over the place even with SAS on it doesn't fly even remotely stable. However, don't put any fuel tanks on it yet, and empty any fuel-containing parts that you are using. What are the arguments for/against anonymous authorship of the Gospels. 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. It is usually placed back because it can be placed further back than it is possible in the front (if it is placed in the front, it can obstruct the view of the pilot, which is undesired) as well as making the plane unstable (by the same effect that you would get if the center of lift (horizontal lifting surfaces) were in front of the center of mass, but with vertical surfaces). You need to sign in or create an account to do that. Does the order of validations and MAC with clear text matter? Always look at your aircraft from a 90* angle on the side. Even though it just spawned. Flight records. Your very own tutorial.). Control surfaces are your friend. 3. Another way to manage this is to mount your wings above your CoM. We look at the principles behind designing a basic jet. When braking most of the power should be on the rear, or you may see Kerbin up close. You can horse hundreds of tonnes, up and down both, with the standard canard pieces. (if the front gear is the same ditance from the CoM as the 2 rear gears. And start small. Remembering the FW TA152 and the U2 I put long wings on it and while its turn rate makes an airliner look like a fighter plane it is stable enough at 19000m. This should reduce ground control authority and make oscillations less powerful. i dont know what kind of range youre looking for but i would make a significantly smaller plane. Imagine that first plane but with the bubble cockpit and the old style round intakes. Set the thrust limiter on your main engines to zero. Sometimes though, planes need to do more complex jobs, like flying farther or making it to space, so I am planning on adding another guide to explain how to make and what to consider in an SSTO spaceplane. Ok, the panther engine is still not good enough. Terriers will also work on Duna. Clear editor. Now for the engines. 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. Next question? Even exponential growth can take a while to get going if it starts out microscopic, and Id be fascinated to find someone who could figure out a way of measuring the growth rate. Could a subterranean river or aquifer generate enough continuous momentum to power a waterwheel for the purpose of producing electricity? We still don't know what his craft even looks like yet For all we know it could be a single SRB with canards at the front. Good, strong control authority - instead of reducing the pitch control authority, make the plane aerodynamically stable, so that even if you do flip it, it will right itself. 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. To do this, take a few barrels of your jet fuel, stick them on the back of your aircraft.

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