- Make sure the landing gear is as close to the center of gravity as possible, just slightly behind it (for nosewheel aircraft). I am accelerating it to over 200m/s on the runway just to test the stability of those wheels since the faster you go, the more likely the plane will wobble and flip on the runway. It is also said that a good landing is one you can walk away from. 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. When I Start Why Engine, It Goes Straight But As Soon As I Takeoff. 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. This material may not be published, broadcast, rewritten, or redistributed. This page was last edited on 19 February 2020, at 07:08. if its too far behind plane cannot lift. So yesterday I was playing some KSP2, and resumed the game from a save where I had landed in Duna. Subscribe! This is good for spaceplanes operating in low-oxygen atmospheres where jet engines can't be used. Sometimes taking things off and re-attaching them does it, or you may have to go so far as to scrap the design and rebuild. At around . Keep at around 15 degrees to allow the plane to accelerate past 1000m/s. A relatively low-drag alternative is to use an inverted cargo bay and some hydraulic cylinders with structural panels as a cargo elevator. Brakes in the back keep you stable. 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. 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). Angled landing gear create rotational force for whatever reason. Lift maxes out at 30 and declines beyond that point, so avoid excessive fuselage tilt.[1]. A FedEx cargo plane in Austin nearly landed on a runway where a Southwest flight was preparing to take off. http://kerbalspaceprogram.com, Press J to jump to the feed. You're going to have a bad time. First try speed over land reached over 210 m/s before flipping in the last second. 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/. Let it get good and clear of the ground before applying any control to it. I have also thought about a wider base. When flying straight the plane is pretty stable but pitching up causes a sharp roll and I cant figure out why. That, combined with a Unity joint bug, makes your plane bounce. I dunno why but this picture makes the one side look like it is tipped in but I know they are straight, I believe it just the angle that the picture was taken that is causing it to look like this. For more information, please see our So I have played the game for 200 hours and I love it. LV-N engines also have the advantage of using the same liquid for propellant that jet engines use for fuel. 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. Install S5 moon rocket By lightbreaker_64. The most dangerous part of a spaceplane flight is returning from orbit. For myself, it always was the position of landing gear in terms of pitch. Either put more engines or reduce the amount of rocket fuel. The Mk1 fuselage parts only tolerate up to 2000K, while Mk2 fuselages tolerate up to 2500K, and Mk3 fuselages tolerate up to 2700K. Clear editor. Enable mirror symmetry to save yourself some alignment effort. The issue is my plane rolls very sharply to the left any time I pitch up. Tell ya what, I'm gonna try to recreate that thing in my sandbox and see what I get. All you need to do is add landing gear (one right before the cockpit, and two on the tips or middle of the wings), and you're done! I was wrong. If you have an account, sign in now to post with your account. 1. make sure your main gear is not wobbling (ie. My plane usually take off at a little over 120m/s. Try disabling friction control with on the front landing gears. 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. I have created planes that have landing gears place right under the wing tips but they still won't work. Note that most air intakes tend to produce less drag than aerodynamic nose cones and pointy cockpits, especially shock cone intakes. For example, having your landing gears located near the ends of the wings is an easy way to ensure that you don't roll and shred your wings when landing or taking off. Paste as plain text instead, as Shkeec said check gear check gear check gear. How do I fix this? Your wings provide the lift, and they cant provide lift if your wheels are too far back because then your base is to stable and the craft wont pivot upwards. All rights reserved. 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. It is advised to place your control surfaces as far from your center of mass as possible. In subsequent missions, you may want to launch with less fuel to cut down on cost and make landing a quicker and easier process. When your jet engines stop working, it is time to ignite the old, reliable liquid fuel engine. (Idea is moot, if you haven't unlocked them yet.) This allows you to takeoff at lower speeds and on shorter runways, and likewise for landing. As such, you may want to line all forward Mk1 radial nodes on your aircraft with shock cones, if possible. EDIT: So, I set the front landing gear spring and damper to 0.5, and also set the tail gear spring and damper to 2, and the problem was fixed! Canards and horizontal tail fins should be placed as far towards the front and back of your aircraft as possible, respectively. When your altitude reaches 35km, start pulling up gently. Keep your nose pointed prograde as you descend through the atmosphere. 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. My first test of the plane parts in KSP2.Like and Subscribe for more Kerbal stuffs!#kerbalspaceprogram #ksp2 #kerbalspaceprogram2 #shorts #spaceplane #nasa The rudder is mostly used when landing and when attempting to line up a shot (in a fighter plane). I've had stability issues in planes where I'd have proper gear setup, balanced weight and lift. 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!). Please consider starting a new thread rather than reviving this one. This page was last edited on 17 December 2021, at 13:14. A plane is any craft which flies horizontally in an atmosphere utilizing lift primarily generated by wings, winglets, or control surfaces. Note that canards are somewhat more efficient than horizontal tail fins since canards provide an upward force with upward rotation, and downward force with downward rotation. . 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). Thank you and happy landings. 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. KSP v.22 Takeoff Troubleshooting Guide/Tutorial Lots of info to help get your plane off the runway! With initial passes, you start off with a periapsis at 50-60 km and gradually lower your apoapsis until you're in an almost circularized low orbit and then transition to your usual re-entry approach. You could do it the kerbal way by attaching two SRBs to the nose of the plane pointing upwards. 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? When your nose is stable at about 10 degrees above the horizon, pull up hard and keep it pulled. All rights reserved. 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. Then this tutorial is for you. As such, you will need various control surfaces. This can easily cause you to crash on landing. Plane spins/lurches to the side during takeoff? You want to get up to get the gear tucked away and reduce drag. I moved the back landing gear to right underneath the COM. 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. 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. Though, I use the FAR mod which will change things, so I can't guarantee the results will be useful, but it might be interesting. 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. Second try, speed over land reached over 210 m/s and it didn't flip. 2022 Take-Two Interactive Software, Inc. This is just a general briefing section with lots of "to do" or "not to do" things: when you think you've got it, check the Aeris 4A tutorial mission to learn how to get into space easily. Either one of those being misaligned will cause instability on the runway during takeoff (and the engines misaligned will cause flight problems). 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. The Kerbal Space Program subreddit. You can post now and register later. To avoid wobble, wheels need to be absolutely vertical, and they shouldn't be attached to something that is likely to flex as speed builds up, as this could also affect the vertical alignment. Control surfaces are heavier than wings. Yours is a very light plane, and the standard suspension settings are for a medium heavy plane -- so your suspension is too stiff. my center of lift is always slightly infront of my mass. Thanks for the help guys. Plane bouncing on takeoff - Gameplay Questions and Tutorials - Kerbal Space Program Forums Hello, I am having a small problem with a plane I have built. For heavy rockets, it might be required to use structure to space the gears away from the body to allow more pitch. 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. "Type E" is the smallest you should have, and you want a set of those connected at the back of the fuselage. 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. Note: This is ONLY to be used to report spam, advertising, and problematic (harassment, fighting, or rude) posts. 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. (Yes, you personally, you lucky thing! 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. You should have something called an "Elevon 1"; this will be the moving part for your wings. I worked through the tutorials and I think my problem was most often a lack of lift, or perhaps more accurately sufficient control surfaces. 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. Why is it doing this? Place your rear wheels/gear in front of the flaps on your wings. Symmetry placement should give you perfect symmetry, as far as the game is concerned. Display as a link instead, Go on, and take the plane capsule which looks like a converted fuel storage device. They could go up to 120 m/s on the runway and still not lift up. 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. Beyond that, you're going to get some wobble once you get close to take off speed. All of them had one thing in common though. I believe the issue is there is not enough control surfaces to offset this issue, but it comes up very easy so it is not a very big deal. Such as not producing lift, which is not what you want with a plane. 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. The Whiplash's ridiculous fuel efficiency allows a spaceplane to climb high into the atmosphere and gain a lot of speed while barely using any fuel at all. 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. 1. tilt of the plane. . They all had to use the runway drop to take off. You probably won't have much luck landing the fuselage intact if your Mk3 plane gets its wings scorched off on reentry. 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. When you are near the end of the runway, quickly activate then detach them to get the nose pointing up. If you can give a craft file and a mod list I could take a look. Also, lift is usually placed in the middle-to-back of the wing, depending on the shape. I thought after buying this I would have all the parts I need to build a small plane that can at least get off the ground, but I'm having trouble. Keep in mind that as your altitude increases, your control surfaces and winglets will become increasingly ineffective and will no longer work at all once you leave the atmosphere, so you may need to add alternative control systems like reaction wheels or RCS thrusters. All of them had one thing in common though. Easier just to bring the rear wheels closer as well as a in line reacton wheel. 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. 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. It is also common to add an Inline Clamp-O-Tron, which, unlike all the other docking ports, can be placed in the middle of the spacecraft (a handy solution, since there is not much space at either end of the craft) to allow your plane to dock with space stations or other spacecrafts. Upload or insert images from URL. Another trick is to move the rear landing gear forward, closer to the center of gravity. So I have played the game for 200 hours and I love it. For your first flight, it may be easiest to ignore yaw altogether and just maneuver by rolling slightly and pitching. You can also angle the wings themselves slightly upwards (using WASDQE) in order to make them generate more lift when horizontal. The problem could be about the angle of wheels, though there could be more problems with the COM and wheels placement. T-1 "Dart" engines are unique amongst conventionally-fuelled rocket engines: They have close to the highest efficiency in both vacuum and low atmosphere. * Gear not mounted to parts that will flex (e.g. 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. This aircraft can takeoff at just above 50 m/s and can glide for a few minutes without engine. 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. 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. Any plane needs speed - so you need thrust (usually). Now stick a jet engine on the back, and don't forget to put an air intake or other air-sucking device (you can find them in aerodynamics) on the airplane. This makes design easier, eliminating all concern for balancing jet fuel against rocket fuel. Kerbal Space Program 2's simulation is a lot more in-depth than its predecessor, where it was feasible for any wannabe Goddard to punch through the atmosphere with overwhelming thrust. You main problem is your landing gear. If, instead, all goes well, then once your jet engines have shut down you will need to start the second part of your space mission by switching to rockets. All I have are the parts from the Aerodynamics tech and the gear bay (wheels). Consequently, atmospheric reentry is less dangerous with a Mk2 or Mk3 fuselage, compared to reentry with Mk1 fuselages.

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