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. Quick context, I am a software engineer. FAR says it would take an Angle of Attack of 24.3 degrees at 119 m/s to generate enough lift to get it to take off. For heavy rockets, it might be required to use structure to space the gears away from the body to allow more pitch. the I place on the wing and attach landing gear on those, it sometimes takes a few tries to find the right spot but well worth it. Landing is hard. Although I usually only need 50 m/s for most planes to wobble out of control. Wing shapes do not appear to have a significant impact on drag or drag-to-lift ratio at this time, but swept wings are still an easy way to help ensure that your center of lift stays behind your center of mass. Maybe ;making the tailwheel less stiff would help, too. https://wiki.kerbalspaceprogram.com/index.php?title=Tutorial:_Your_First_Plane&oldid=103052. Keep your nose pointed prograde as you descend through the atmosphere. When flying straight the plane is pretty stable but pitching up causes a sharp roll and I cant figure out why. As such, don't use control surfaces as substitutes for wings, and don't use more control surfaces than you need. Privacy Policy. 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. Also note that for maximum efficiency, you should make sure that your horizontal control surfaces are rotated to exactly the same pitch that you've rotated your wings. Doesnt make sense so just do this: Nope that didn't solve anything, even when the plane is past the runway and gliding on the little bit of space before the ocean it will slowly lower to the ocean, what am I doing wrong? This is starting to get really frustrating. So the answer is: in the SPH, click on your front gear, set the spring to .5 and set the damper to .5 -- then save it and give it another shot at launching. Control surfaces are heavier than wings. as Shkeec said check gear check gear check gear. 2 will usually do nicely, but 3 or 4 are usually better (but of course heavier, and this tutorial assumes you use 2). 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. Canards and horizontal tail fins should be placed as far towards the front and back of your aircraft as possible, respectively. Ailerons to roll your aircraft should be placed as far off to the edges of your wings as possible. This is either a collider or design issue, if the craft doesn't have enough lift initially to get off the ground it will bounce a bit before taking off. To minimize the risk of such a situation, try to land on a large patch of flat open ground approaching a downhill slope. I have built lots of spaceplanes. 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. This aircraft can takeoff at just above 50 m/s and can glide for a few minutes without engine. Notice how the landing gears are placed out on the wings. 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? 2022 Take-Two Interactive Software, Inc. When dealing with high-speed landings, you may touch down too quickly and cause the front of the plane to smack into the runway. What you ought to be using is the Swept Wings and Elevon 1s instead of the Delta-Deluxe Winglets. Please consider starting a new thread rather than reviving this one. You can resolve the emergency by transferring fuel from rear fuel tanks to forward fuel tanks, but you should alter your design to bring your wings further back to prevent such incidents in the future. Clear editor. Safety note: Disable the brakes on the front landing gear. 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. if its too far behind plane cannot lift. If you use an Advanced SAS, and raise your front landing wheel so that it is higher than the rear wheels, by just turning the SAS on and going full throttle, due to the 10 degree angle of the plane, it should eventually take off by itself. Landing also often requires rapid deceleration to avoid running off the end of the runway or crashing into a slope when landing on open terrain. Rapiers generally provide less thrust than a Whiplash at speeds below mach 2, but provide more thrust at higher speeds. S5 moon rocket by lightbreaker_64. The SSTO I took to Laythe recently has only one minor flaw using this design, I have to raise the landing gear and pull back slightly to take off. This is also the same reason why planes start rolling toward the middle of the runway; because both ends of the runway are further from . For a Mk1-based aircraft, your rear landing gears should not be tightly tucked together on the fuselage. Landing speed (minimum speed for level flight) can be reduced by adding components to increase maneuverability, by using larger wings, by increasing wing angle of attack on the fuselage (3-5 degrees is the recommended range for a spaceplane to achieve the best lift-to-drag ratio [source]), and by decreasing the weight of the aircraft. When you are near the end of the runway, quickly activate then detach them to get the nose pointing up. If your spaceplane is difficult to land when full of fuel but easy to land when empty, then it may be helpful to burn off or transfer out most of the excess fuel before landing to make the aircraft lighter. 6.4K Downloads Updated Jun 7, 2017 Created Jun 7, 2017. . And also place them further apart. Here are a few pictures of it: Take a picture with center of mass and center of lift turned on. 1. make sure your main gear is not wobbling (ie. Thanks for everyone trying to help! Just after having taken off, the plane will immediately start rolling to the right, and completely uncontrollably. And above all: have fun! 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. Install S5 moon rocket By lightbreaker_64. I'm making sure that I keep trying to get it up but it just wont go! KSP 2 speculation: I believe terraforming will be a feature of the game When your nose is stable at about 10 degrees above the horizon, pull up hard and keep it pulled. A Mk1 Cockpit, two Mk 1 Liquid Fuel Tanks, and then cap the back with a round nose cone (use the A/D keys to rotate it as necessary). All rights reserved. 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. When landing, you can achieve the highest lift for a given speed by raising the total angle of attack of your wings to 30 degrees (although this induces a great deal of drag). and our You could do it the kerbal way by attaching two SRBs to the nose of the plane pointing upwards. But, likely guess is your craft is not producing enough lift. Espaol - Latinoamrica (Spanish - Latin America), http://steamcommunity.com/sharedfiles/filedetails/?id=484107795, http://steamcommunity.com/sharedfiles/filedetails/?id=484107807, http://steamcommunity.com/sharedfiles/filedetails/?id=484107735, http://steamcommunity.com/sharedfiles/filedetails/?id=484107761, http://steamcommunity.com/sharedfiles/filedetails/?id=484119427, http://forum.kerbalspaceprogram.com/threads/52080-Basic-Aircraft-Design-Explained-Simply-With-Pictures, http://steamcommunity.com/sharedfiles/filedetails/?id=484137556, http://images.akamai.steamusercontent.com/ugc/443953434412162923/42B3BB54A6A524CCC2E5C102AD88C8E521790F55/. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. 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. This ensures that your aircraft will go up once it achieves a high enough speed, and also helps with placing ailerons. KSP Stock Space Shuttle by _ForgeUser18393701. This plane will be able to take off, travel somewhere, perform a crew report, and then land. symmetry building makes them face slightly towards (or away from) each other, with wobbly results. Similar principles apply when finding suitable landing sites away from the KSC. You main problem is your landing gear. Alright, it's late where I live so I'm gonna hit the hay and come back to it tommorrow, I read on the guide someone sent me and I think it is taht it doesn't have any way of pointing the up, so I'll tinker with some of the wings and see what I can do. (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. mods used are OPT for most of the body and the front canards and tail plane, B9 procedural wings for the wings, and mk4 spaceplane parts for the engines. That's over 2x the normal recommended max. - Make sure you have enough control authority to lift the nose up. 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. Congratulations! Plane wobble during takeoff - Kerbal Space Program Forums Firstly, inadequate air intakes for the number and type of engines you're using (causing some engines to shut down before others). 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. Suggest a Correction Copyright 2023 Nexstar Media Inc. All rights reserved. A plane is any craft which flies horizontally in an atmosphere utilizing lift primarily generated by wings, winglets, or control surfaces. So yesterday I was playing some KSP2, and resumed the game from a save where I had landed in Duna. This allows you to takeoff at lower speeds and on shorter runways, and likewise for landing. If that's not an option, you can still recover some value by landing at any suitable flat place on Kerbin. First thing you're going to want to do in the SPH is turn on your centre of mass indicator (this is the point that the plane will rotate around when rolling, pitching, or yawing) and your centre of lift indicator (the Aerodynamic Overlay). 2022 Take-Two Interactive Software, Inc. Powered by Invision Community. 1. make sure your main gear is not wobbling (ie. How to Fly a Plane - KSP Beginner's Tutorial - YouTube Note: This is ONLY to be used to report spam, advertising, and problematic (harassment, fighting, or rude) posts. 2022 Take-Two Interactive Software, Inc. Descending greater than -10 m/s usually makes a mess. They could go up to 120 m/s on the runway and still not lift up. All lift-rating means is that the wing section will resist motion perpendicular to its plane. LV-N "Nerv" nuclear thermal rockets are commonly used on SSTOs for the rocket stage if Rapiers are not used. A FedEx cargo plane in Austin nearly landed on a runway where a Southwest flight was preparing to take off. I removed them and it works fine now. Note: The large delta wing will ensure you won't backflip. Try getting the wings to deflect the air down, either by lifting the front end up using canards or by mounting them at an angle using shift + wasdqe. They could go up to 120 m/s on the runway and still not lift up. While having the same stock parts as in the VAB, spaceplane design is obviously quite different from pure rocket design. Consequently, atmospheric reentry is less dangerous with a Mk2 or Mk3 fuselage, compared to reentry with Mk1 fuselages. Remember how you want your center of lift/drag to be behind the center of gravity? There are several forces in Kerbal Space Program which have an effect on the flight characteristics of SSTO craft. Here, the. How wide is the base. My first test of the plane parts in KSP2.Like and Subscribe for more Kerbal stuffs!#kerbalspaceprogram #ksp2 #kerbalspaceprogram2 #shorts #spaceplane #nasa They all had to use the runway drop to take off. Thanks for the help guys. All the weight is pushed on the middle and it can't pull up. 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. If the problem has to do with lift then travelling very slowly, possibly even slower than that, should counteract the effects of lift and you won't drift nearly as much. 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. As the title says, my plane dips and turns to the side, clips its wing on the runway and loses it, does the same on the other side, then crashes and explodes, without even getting airborne. Upload or insert images from URL. Kerbal Space Program 2's early access launch is only for seasoned I had this one plane, very fast, It would go to 170 m/s on the runway then drop of the end and soar very nicely. When your spaceplane rolls shortly after touchdown, veers to one side and then explodes on the runway, you have a problem with landing stability. Note: This is ONLY to be used to report spam, advertising, and problematic (harassment, fighting, or rude) posts. Note: Your post will require moderator approval before it will be visible. Press question mark to learn the rest of the keyboard shortcuts. For your first flight, it may be easiest to ignore yaw altogether and just maneuver by rolling slightly and pitching. All of these problems can be exacerbated or reduced by adjusting the amount of fuel in your tanks during landing. 5.whether the body you anchor the landing gears to are firm. 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. Brakes in the back keep you stable. This allows you to avoid the extra weight and mass of additional fuselage parts, so you only have to deal with the extra weight of the fuel itself. One final point to consider is the mass you're planning to store in the fuselage. While I am not a great plane builder there is a part in the structural (I think it is a pylon?) This thread is quite old. It's said that takeoffs are optional but landings are mandatory. This is most likely the standard jitterbugging problem. 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. I wanted to develop a plane to check how are the aerodynamics physics working, and went back to the KSC VAB to design a little plane. Plane spins/lurches to the side during takeoff? Note: This tutorial was last updated for version 1.7.2. 2022 Take-Two Interactive Software, Inc. Geometric shape of the body you attach the landing gear to. Beyond that, you're going to get some wobble once you get close to take off speed. KSP 2 speculation: I believe terraforming will be a feature of the game. "Type E" is the smallest you should have, and you want a set of those connected at the back of the fuselage. 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. You want an elevon on each set of wings. Second try, speed over land reached over 210 m/s and it didn't flip. In subsequent missions, you may want to launch with less fuel to cut down on cost and make landing a quicker and easier process. You can post now and register later. Mechjeb Spaceplane Guidance : r/KerbalSpaceProgram - reddit Managed to fix it with some different wings; idk what was going on with the other ones but I was just thr FAT aeroplane wings. My spaceplanes keep drifting off runway during takeoff. What am I doing Valve Corporation. When your altitude reaches 35km, start pulling up gently. 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. At around . 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! Pasted as rich text. At that point, the plane could potentially start spinning around as a result of losing the benefit of the gimbal control of the engine. To maximize lift, your aircraft should rest on the ground with the fuselage tilted upward at anywhere up to a 25-27 angle so that the wings will end up tilted back at up to 30. Temperature tolerance is the primary consideration for fuselage choice. I have found a solution to my problem. A Mk1 Cockpit, two Mk 1 Liquid Fuel Tanks, and then cap the back with a round nose cone (use the A/D keys to rotate it as necessary). - Make sure the landing gear is as close to the center of gravity as possible, just slightly behind it (for nosewheel aircraft). You've just unlocked "Aviation" tech, you have a bunch of contracts that require you to stay at low altitude, and you want to build your first plane? However, they do take a conventional mix of fuel and oxidizer, and thus require much more fuel mass than jet engines or LV-N Nerv. Enable mirror symmetry to save yourself some alignment effort. Does your plane never pull up taking off? I have been building - reddit Consider placing your rear landing gears close to the spaceplane's center of mass, but be careful to avoid an engine collision with the runway. This plane will be able to take off, travel somewhere, perform a crew report, and then land. 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. Obviously jet engines are air-breathing, so you need to include air intakes in your spaceplane. Do you have new pics after you moved the rear wheels forward? It is advised to place your control surfaces as far from your center of mass as possible. i have no idea why this happens please help. 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. - KSP Matt Lowne 527K subscribers 1.3M views 2 years ago I've wanted. Tutorial:Aeris 4A mission - Kerbal Space Program Wiki 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. I moved the back landing gear to right underneath the COM. Angled landing gear create rotational force for whatever reason. http://kerbalspaceprogram.com, Press J to jump to the feed. Also note that shock cone intakes appear to provide the best air supply at all mach speeds, and unlike other air intakes, they do not decline in performance beyond certain mach speeds. Real planes do this as well. Valve Corporation. Clear editor. 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. Secondly, it would suggest that your spaceplane's center of lift is too far forward compared to its center of gravity (causing the uncontrollable spin). This tutorial was created primarily based on a Reddit post by the incredibly helpful u/AnArgonianSpellsword. LV-N exceeds 75% of its full power at just 7700m altitude on Kerbin. http://www.youtube.com/user/Cruzanak?. Tell ya what, I'm gonna try to recreate that thing in my sandbox and see what I get. Plane bouncing on takeoff - Kerbal Space Program Forums With a tail-dragger, the plane is already angled up just sitting on its wheels so once the speed is high enough, it should just float up by itself. You cannot paste images directly. A good example of this is at the KSC runway when landing on a 90 degree bearing. KSP v.22 Takeoff Troubleshooting Guide/Tutorial Lots of info to help get your plane off the runway! Keep at around 15 degrees to allow the plane to accelerate past 1000m/s. 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. A relatively low-drag alternative is to use an inverted cargo bay and some hydraulic cylinders with structural panels as a cargo elevator. 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!). If you forget to put an air intake on your airplane, don't worry! Your plane is almost finished. 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. 4. Works well on small craft. wings, unless they're very well braced). [KSP] - Heavy Seaplane Take-off, Water-landing and Re-take-off! They sometimes coincide with ailerons on some, more space-economical, aircraft. Check out the following guide for some good info: Your wheel base is the problem. Spaceplanes generally ascend best on a 10-30 degree incline, often leveling out towards higher altitudes to pick up the maximum horizontal velocity before switching to rocket motors. You may also want to deploy your landing gears to increase your drag, as well as airbrakes if you have them. T-1 "Dart" engines are unique amongst conventionally-fuelled rocket engines: They have close to the highest efficiency in both vacuum and low atmosphere. In contrast, if you attempt a landing at the KSC runway on a 270 degree bearing, you run the risk of colliding with the upward slope shortly beyond the runway if you can't slow down initially and then can't speed up fast enough. I just thought my planes were too heavy or not enough control surfaces. Your previous content has been restored. Then this tutorial is for you. Either put more engines or reduce the amount of rocket fuel. You can also use parachutes on landing, but care must be taken to ensure that an adequate length of runway remains since you'll only get one chance to use them. If your Mk3 design jam-packed full of heavy gear can't seem to survive reentry, one option might be to reduce the payload a bit. I was wrong. Alternatively, if you're returning from a high orbit or from an interplanetary trip, you can try repeated shallow passes through the atmosphere. KSP Quick Guides: Takeoff Troubleshooting Stock v.22 - YouTube here are some images and a gif. First try speed over land reached over 210 m/s before flipping in the last second. Mk2 aircraft may be able to get away with it, but even then it's often best to space them further out. 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. When flying straight the plane is pretty stable but pitching up causes a sharp roll and I cant figure out why. Need to move them up. 3. make sure your center of mass is slightly in front of center of lift force. However, they are extremely heavy for their power, weighing as much as a conventional rocket nearly 11 times more powerful. You can even try refueling it before recovering your spaceplane further increasing your recovering value.
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