1. tilt of the plane. The default max stress value is just ridiculous, its like flying in hair gel, everything gets torn apart so easily, like that will ever happen in real life. It's strongly recommended to keep your landing gears well-spaced from each other to ensure that the aircraft will be difficult to roll into a collision. I have doubled the max stress value for aerodynamics failure in FAR for every category. It is also advisable to add some control surfaces to your plane to have some control in the atmosphere: you can manually add them to the wings or choose winglets with effective control surfaces, like the Standard Canard. However, it's not a matter of "atmosphere or not", just a matter of air pressure which decreases rapidly with altitude. Note that a Wheesley or Goliath engine can reverse its thrust to allow rapid deceleration during landing, but these are not recommended for a spaceplane due to being unreasonably heavy and inducing excessive drag when attempting to transition to orbital velocities. Whether you're storing your fuel in fuselage sections, wing sections, or attached inside of cargo bays, it's generally a good idea to keep equal amounts of fuel at equal distances from your center of mass. In fact, nothing will happen at all, and that's probably bad, so put an air intake on your plane anyway. Re-entry heating can destroy parts of your spaceplane, or destroy it entirely. Now imagine what happens like that. There are multiple ways to place them: Ailerons control the roll of the aircraft, and are (almost) always placed on the wings, as far out as possible and as centered (compared to the center of mass) as could be. I just built a plane but when i launch it just slides and spins slowly to the right, any ideas on why this is happening? Install S5 moon rocket By lightbreaker_64. Alternatively, if you're returning from a high orbit or from an interplanetary trip, you can try repeated shallow passes through the atmosphere. Hot ground causes air to rise, cooling as it moves away from the heat, which leads to increased density and a resulting fall back down. Depending on which surface you place them on, they might not be parallel to the axis in which case. Here's a quick installment in to the. (Yes, you personally, you lucky thing! Any ideas? Either put more engines or reduce the amount of rocket fuel. You can slow down either by deploying landing gears (and airbrakes if you have them) or by repeatedly pitching up and then back down to increase your drag. I took off and at 60 m/s I was in the air! Why is it doing this? Then this tutorial is for you. The only drawback to the reduced friction is reduced steering control, so this setting may need to be adjusted when taxiing to/from a runway, but should otherwise be kept minimal for takeoff and landing. This is generally an issue of not spacing your landing gears out far enough apart. My Space Plane Keeps Flipping Backwards On The Runway. Drive gently off the runway and use the huge grassy field to take off, without care in the world about the plane veering to a side. Your aircraft might just be too heavy - there might not be enough wing lift for it to take off the ground. If you're planning on landing on a somewhat uneven surface, like an open grassland somewhere on Kerbin or an island on Laythe, consider packing some parachutes for deceleration. Plane wobble during takeoff - KSP1 Gameplay Questions and Tutorials - Kerbal Space Program Forums Is there a way to place landing gear so that i can guarantee my plane can remain stable on the runway even at high speed in excess of 200m/s? Beyond that, you're going to get some wobble once you get close to take off speed. Set up for a long glide path, and watch rate of climb indicator at top of screen, aim for -5 m/s. This is starting to get really frustrating. - Make sure you have enough control authority to lift the nose up. After externsive testing and bloodpressure rise, results: it doesnt matter where you place the wheels, as long as they are not angled on the X (nose-tail) axis. All trademarks are property of their respective owners in the US and other countries. While I am not a great plane builder there is a part in the structural (I think it is a pylon?) As you would expect, spaceplanes need wings: they have various shapes and dimensions, and they differ basically in lift rating: you will want to have enough lift to keep your fuselage approximately prograde during your ascent to orbit. Note: Your post will require moderator approval before it will be visible. I made a KSP replica of the Horten Ho 229 while trying to make a short takeoff plane.If you have any questions or suggestions, let me know in the comments.My. See the tutorial below. Elevators are usually places in the front or back of an aircraft, and their function, as the name implies, is to change the pitch of the nose up and down. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Thermal turbulence, caused by convection, happens below clouds and typically only impacts planes during takeoff and landing. I have built lots of spaceplanes. KSP handling death investigation High Winds Cause Widespread Power Outages Ohio . Here is the best aircraft I have created to date: Jet Aircraft. I dont really need 200m/s for take off. After that, you face the challenge of touching down on the ground and coming to a stop safely without rolling and breaking off a wing or taking a nosedive and blowing your aircraft up on touchdown, or rolling off of the runway and into the ocean. That, combined with a Unity joint bug, makes your plane bounce. Center of Mass and Center of Lift are the usual causes of instability. Lift maxes out at 30 and declines beyond that point, so avoid excessive fuselage tilt.[1]. 2022 Take-Two Interactive Software, Inc. Keep at around 15 degrees to allow the plane to accelerate past 1000m/s. Flying a Space Station through a GAS GIANT! But also check to make sure that your wheels are placed symmetrically and your engines are aligned properly. Also pay attention to your fuel balance, especially if you're using several tanks placed in parallel to each other. I scoured the entire web for a solution, but found no working solution or at least dont work every time. That way you can use aerodynamics to lower the tail, rather than trying to raise the nose. i have no idea why this happens please help. However, make sure to use struts when placing landing gears on the far edges of a multi-part wing because they may sag enough to cause a fuselage collision with the runway during landing. If your rear wheels are too far back the aircraft will not be able to pivot on the wheels and lift its nose up. First of all, since the launch happens horizontally, you will have to include landing gears, and you will most likely want to include jet engines for the first stage for excellent fuel and cost efficiency. Conversely, if you keep all of the fuel in the back, you may find that your center of mass gradually drifts so far in front of your center of lift that you can't keep your nose up anymore, also potentially resulting in a fatal scenario. I found biggest cause of this as well as not being able to possibly correct is having sas on during takeoff, make sure that is off during take off and should find problem is less likely to occur, but I too struggle to make working space planes even when center of lift, mass, thrust are all as needed. As long as you're in space, your spaceplane won't differ from any spacecraft: you will probably want to add batteries and generators to prevent the command pod from running out of power. As you approach 35-50 km, your aircraft will most likely level itself out, at which point you can try aiming about five degrees above the horizon line. I moved the back landing gear to right underneath the COM. 4. You're going to have a bad time. 2. Hit the launch button and watch your magnificent bird fly! Aircraft in this game is almost unfeasible, especially in career mode, you will lose all your money before you finally design an aircraft that can even takeoff. All lift-rating means is that the wing section will resist motion perpendicular to its plane. These occur at their worst when your center of gravity is far ahead of your rear landing gears and you have a heavy plane at high speeds and a high angle of attack on landing, resulting in your front landing gear rapidly striking the runway after your rear landing gears touchdown. Having landing gears near the front and back of your aircraft can also help to ensure that you won't break your engines or smash your cockpit into the runway. Necessary for heavy/long spaceplane. I was attaining high speeds on the runway without getting off the ground, which made the plane yaw back and forth. (However, it must be noted that it is bad practice to use ailerons as elevators since it makes it hard to control the aircraft), The rudder moves the tip of the plane left and right; it is rarely used, since it is hard to put it both up and down due to the possibility of hitting the ground. and our A plane is any craft which flies horizontally in an atmosphere utilizing lift primarily generated by wings, winglets, or control surfaces. Firstly you're going to want to make a short fuselage. Basic structure Firstly you're going to want to make a short fuselage. ), Stable aircraft: "Untitled" (lost the file upon loading after aircraft), Stable jet car: "Untitled" (Lost the file), Speed over land > 350 m/s before veering off the runway, Sometimes Stable Spaceplane: "Hypersonic Experimental". When your altitude reaches 35km, start pulling up gently. The tutorial below explains everything very well. LV-N "Nerv" nuclear thermal rockets are commonly used on SSTOs for the rocket stage if Rapiers are not used. Or adding a RATO boosters. How do I fix this? Close to empty tanks will allow you to fly slower, decelerate faster, and reduce touchdown strain. It Flips Up And Towards The Opposite Direction. You may also want to deploy your landing gears to increase your drag, as well as airbrakes if you have them. If you plan on either dropping off cargo or picking up cargo and traveling with it, you'll generally want to locate your cargo bay at the middle of your center of gravity. I don't have any mods but sometimes a problem may be a simple bug. Upload or insert images from URL. However, don't bother going overboard with intakes because your engines will still shut off at high altitudes due to the low air pressure regardless of how many intakes you have. It's said that takeoffs are optional but landings are mandatory. Upload or insert images from URL. Keep in mind that lift rating and control surfaces are not connected: lift rating is basically the capacity of your wings to sustain the weight of your spaceplane, while control surfaces are parts of wing that can be moved to change the flow of the air around the plane and through this change a plane's direction, angle of attack or inclination. Consequently, atmospheric reentry is less dangerous with a Mk2 or Mk3 fuselage, compared to reentry with Mk1 fuselages. Plane spins/lurches to the side during takeoff? I have also thought about a wider base. This is for the same reason that you keep your fuel balanced. 2022 Take-Two Interactive Software, Inc. This ensures that your aircraft will go up once it achieves a high enough speed, and also helps with placing ailerons. Here is an example of landing gear place on a complex geometric surface: Unstable plane Rear landing gears only seems to work on cylindrical fuselage, if you place them on a fuselage intake or anything other than a cylinder, the wheels can behave strangely. 3. angle of the wheels. LV-N engines also have the advantage of using the same liquid for propellant that jet engines use for fuel. This tutorial was created primarily based on a Reddit post by the incredibly helpful u/AnArgonianSpellsword. mods used are OPT for most of the body and the front canards and tail plane, B9 procedural wings for the wings, and mk4 . I have no problems using Mechjeb to launch rockets into orbit, rendezvousing and docking with other craft. Keep your spaceplane pointed about 90 degrees above prograde so that the wings and body of your aircraft slow you down as much as possible. Notice how the landing gears are placed out on the wings. 5.whether the body you anchor the landing gears to are firm. [KSP 2] I'm trying really hard to make a Mun capable ship but this rocket . KSP v.22 Takeoff Troubleshooting Guide/Tutorial Lots of info to help get your plane off the runway! There are several forces in Kerbal Space Program which have an effect on the flight characteristics of SSTO craft. I have never successfully landed a single aircraft before as they all tend to roll over when landing at high speed. http://www.youtube.com/user/Cruzanak?. FOX 56 News Video More Videos - KSP Matt Lowne 527K subscribers 1.3M views 2 years ago I've wanted. The reverse also happens. You want to start by attaching a Mk 0 Liquid Fuel Tank under the wings, making sure you're mirrored so it goes under both wings. EDIT: It was the b9 procedural wings. That's over 2x the normal recommended max. Note: This is ONLY to be used to report spam, advertising, and problematic (harassment, fighting, or rude) posts. This allows you to takeoff at lower speeds and on shorter runways, and likewise for landing. Saves a lot of headache in wheels placement. For spaceplanes, avoid the FAT parts (wing, tail fin, and control surface). * Gear not mounted to parts that will flex (e.g. 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). Now put on center of mass and center of lift view, and move the delta wings until the center of lift is slightly behind of the center of mass - not in front, otherwise your aircraft will be able to easily flip out of control. Also, try this mod: http://forum.kerbalspaceprogram.com/threads/99660-0-25-Adjustable-Landing-Gear-v1-0-4%28doors-fixed%29-Nov-14 (still works in 0.90 if you get updated firespitter.dll). Thank you and happy landings. To avoid swerving on takeoff and landing, it is strongly recommended to turn off or reduce the strength of the front brake on your aircraft, as well as to reduce the friction control. Take the large delta wings and place them on the aircraft. Congratulations! 2 will usually do nicely, but 3 or 4 are usually better (but of course heavier, and this tutorial assumes you use 2). Note: Some high-efficiency rocket engines lose most of their power and efficiency in low atmosphere. First try speed over land reached over 210 m/s before flipping in the last second. So I started a new career file after not really playing for a long time and I'm now at the point where I just dropped 45 Science to unlocked Aviation to get some of the plane parts that I need. If your aircraft is burning up during this stage, you may need larger wings to slow you down faster, radiator panels to carry away the heat more effectively, parts with a higher temperature tolerance (like the Mk2 liquid fuel fuselage instead of the Mk1 liquid fuel fuselage), or parts to increase your maneuverability, like RCS thrusters, reaction wheels, or canards and elevons. As with everything in KSP, experiment, experiment, experiment. After a successful touchdown, high-speed motion on the runway (let alone uneven ground) can be unstable, causing the aircraft to careen to one side or the other, potentially resulting in loss of a wing and sometimes the entire aircraft. If you need to carry more fuel, consider using the Big-S Delta Wing as it provides the same lift-to-drag and lift-to-weight ratio as any other wing of the same mass, yet has the ability to carry fuel as well. While it's true that jet engines don't work in space, they offer one large advantage over rocket engines while inside the atmosphere: fuel efficiency. (For test purposes, all aircraft are not pitched up and SAS is turned off. Control surfaces are heavier than wings. Your link has been automatically embedded. This tutorial will help you with the basics of spaceplane flight, and will help you avoid the most common errors that could ruin your day as a spaceplane pilot! Just like with rockets, get some courageous Kerbal in the cockpit and let's get started! I started investigating why this was happening. Because of how small Kerbin is and how high its gravity is, a perfectly flat surface just north of the equator will cause planes taking off to bias to the right of the runway, as if they were rolling downhill. Cure: Draw a mental axis from the nose to the tail of the plane and use the rotate tool (summetry on), on one of the wheels. T-1 "Dart" engines are unique amongst conventionally-fuelled rocket engines: They have close to the highest efficiency in both vacuum and low atmosphere. I managed to successfully takeoff and land this aircraft at least 20 times in a roll now and I haven't even lost a single pilot flying this. It doesn't really matter if you angle them or not, there is not a single configuration for the wheels that can work on all plane parts. This makes them a very effective choice for SSTOs since they do a good job of getting maximum velocity out of air-breathing mode, and then allow you to use oxidizer without needing the added weight and drag of a separate rocket engine. You probably won't have much luck landing the fuselage intact if your Mk3 plane gets its wings scorched off on reentry. https://forum.kerbalspaceprogram.com/index.php?/topic/124380-wing-lift-amp-wing-lift-to-drag-ratio-charts/, https://wiki.kerbalspaceprogram.com/index.php?title=Tutorial:_Spaceplane_basics&oldid=100619. When dealing with high-speed landings, you may touch down too quickly and cause the front of the plane to smack into the runway. I do add a strut to each wheel out of habit since my earlier versions use to roll, better safe than sorry. Also, excessive use of the rudder usually causes the plane to spin out of control and crash. As lift increases you remove some strain on the gear, however you've just increased the amount of sag. Press question mark to learn the rest of the keyboard shortcuts. You can even try refueling it before recovering your spaceplane further increasing your recovering value. I've had stability issues in planes where I'd have proper gear setup, balanced weight and lift. However, they are extremely heavy for their power, weighing as much as a conventional rocket nearly 11 times more powerful. Some testing is usually required with new designs to determine the best ascent profile. Landing is hard. They all had to use the runway drop to take off. KSC's runway is slightly north of Kerbin's equator and perfectly flat. How to Fly a Plane - KSP Beginner's Tutorial - YouTube 0:00 / 25:53 How to Fly a Plane - KSP Beginner's Tutorial Mike Aben 30.6K subscribers 78K views 2 years ago KSP - Absolute Beginner's. I was wrong. To survive re-entry, it's recommended to start your approach back into the atmosphere at a shallow angle, ideally with a periapsis of around 30-35 km. They sometimes coincide with elevators. You want an elevon on each set of wings. Everything looks perfectly symmetrical as far as I can tell. For more information, please see our Do agree that the rear wheels either need to be brought closer or or the Nenter of mass needs to be move closer to the rear wheels. I just thought my planes were too heavy or not enough control surfaces. 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. If you have seen the examples above, I have planes that have angled landing gear and they work perfectly, yet some planes with straight landing gears don't. You can post now and register later. Another trick is to move the rear landing gear forward, closer to the center of gravity. Note that most air intakes tend to produce less drag than aerodynamic nose cones and pointy cockpits, especially shock cone intakes. Here is your convenient solution to this problem! It can be helpful to use a slightly taller front landing gear and slightly shorter rear landing gears so that your fuselage points slightly upward on the ground, thereby increasing the angle of attack of your wings while on the ground.