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. When your spaceplane rolls shortly after touchdown, veers to one side and then explodes on the runway, you have a problem with landing stability. everytime i make a powered plane, it always flips over and points backwards after i take off. 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. my planes keep flipping backwards on take off . As lift increases you remove some strain on the gear, however you've just increased the amount of sag. Check out the following guide for some good info: Your wheel base is the problem. 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. In vanilla KSP, wings have a predefined lift factor. Wow, if you need 200 m\s to take off, you should think about adding more lift. 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. 6.4K Downloads Updated Jun 7, 2017 Created Jun 7, 2017. . If you are using B9 Rocketery or other parts that utilize Firesplitter, this is normal. I started investigating why this was happening. At that point, the plane could potentially start spinning around as a result of losing the benefit of the gimbal control of the engine. More mass will mean it takes more drag to slow down on reentry, which will mean you go faster at lower altitudes and experience more reentry heating. It's said that takeoffs are optional but landings are mandatory. Do you have new pics after you moved the rear wheels forward? If you forget to put an air intake on your airplane, don't worry! Bit late i know, but i had the same problem. I scoured the entire web for a solution, but found no working solution or at least dont work every time. Clear editor. 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. But, likely guess is your craft is not producing enough lift. 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. Please consider starting a new thread rather than reviving this one. Depending on which surface you place them on, they might not be parallel to the axis in which case. And, of course, try to take off and land as slow as possible. 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. I don't have any mods but sometimes a problem may be a simple bug. 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. Mk2 aircraft may be able to get away with it, but even then it's often best to space them further out. 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). My first test of the plane parts in KSP2.Like and Subscribe for more Kerbal stuffs!#kerbalspaceprogram #ksp2 #kerbalspaceprogram2 #shorts #spaceplane #nasa Paste as plain text instead, I was attaining high speeds on the runway without getting off the ground, which made the plane yaw back and forth. EDIT: It was the b9 procedural wings. 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. @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 cheesy and wouldn't solve the root problem. KSP handling death investigation High Winds Cause Widespread Power Outages Ohio . Valve Corporation. First try speed over land reached over 210 m/s before flipping in the last second. If you keep all of the fuel in the front, you may find that your center of mass drifts backwards as your fuel drains. Any ideas? "Type E" is the smallest you should have, and you want a set of those connected at the back of the fuselage. Enable mirror symmetry to save yourself some alignment effort. 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. 1. The reverse also happens. You main problem is your landing gear. 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. Firstly, inadequate air intakes for the number and type of engines you're using (causing some engines to shut down before others). Angled landing gear create rotational force for whatever reason. 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. The issue is my plane rolls very sharply to the left any time I pitch up. When your altitude reaches 35km, start pulling up gently. Here are a few pictures of it: Take a picture with center of mass and center of lift turned on. Note that most air intakes tend to produce less drag than aerodynamic nose cones and pointy cockpits, especially shock cone intakes. 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. 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. At around . If you placed the main wings at the centre of mass and then added the smaller wings behind, this should be correct already. When you are near the end of the runway, quickly activate then detach them to get the nose pointing up. However it's huge size can make it tricky to take off from the runway without destroying the engine. Valve Corporation. They all had to use the runway drop to take off. 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. 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. My plane usually take off at a little over 120m/s. They are able to operate at higher altitudes and can even continue operating in a vacuum by switching to a rocket mode. I see absolutely no need to be traveling that fast down the runway. Then this tutorial is for you. This helped immensely and if you haven't been doing this already, do it. ), 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". Press question mark to learn the rest of the keyboard shortcuts. - KSP - YouTube 0:00 / 31:25 Flying a Space Station through a GAS GIANT! Suggest a Correction Copyright 2023 Nexstar Media Inc. All rights reserved. Notice how the landing gears are placed out on the wings. if mounted on not struted part). 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. Hello, I am having a small problem with a plane I have built. 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! Remember how you want your center of lift/drag to be behind the center of gravity? I was wrong. You can also angle the wings themselves slightly upwards (using WASDQE) in order to make them generate more lift when horizontal. This helps to keep the performance of your spaceplane stable with any amount of fuel. They all had to use the runway drop to take off. The plane is clearly unstable. 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? LV-N has less than 25% of its full power at Kerbin sea level. LV-N "Nerv" nuclear thermal rockets are commonly used on SSTOs for the rocket stage if Rapiers are not used. Just after having taken off, the plane will immediately start rolling to the right, and completely uncontrollably. Hit the launch button and watch your magnificent bird fly! Now for the engines. 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. 2022 Take-Two Interactive Software, Inc. Espaol - Latinoamrica (Spanish - Latin America), http://forum.kerbalspaceprogram.com/threads/65638-Basic-Airplane-Space-Plane-Aero-Tutorial. Subscribe! For your first flight, it may be easiest to ignore yaw altogether and just maneuver by rolling slightly and pitching. 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. Be aware that landing on water is an option if your spaceplane can fly level at less than ~40-50 m/s. Now right click each elevon and the tail fin and set what movement each controls; the ones on the large wings control roll only, the ones on the back wings control pitch only, and the tail fin controls yaw only. Keep your nose pointed prograde as you descend through the atmosphere. That said, parachutes are an exceedingly effective means of reducing your stopping distance. KSP v.22 Takeoff Troubleshooting Guide/Tutorial Lots of info to help get your plane off the runway! - Make sure the landing gear is as close to the center of gravity as possible, just slightly behind it (for nosewheel aircraft). In subsequent missions, you may want to launch with less fuel to cut down on cost and make landing a quicker and easier process. Is there a way to rectify this problem. Mods needed for this aircraft to work: Procedural wings, Adjustable Landing Gear, FAR. 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. This material may not be published, broadcast, rewritten, or redistributed. Here is the best aircraft I have created to date: Jet Aircraft. Here is your convenient solution to this problem! Re-entry heating can destroy parts of your spaceplane, or destroy it entirely. 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! 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? They sometimes coincide with ailerons on some, more space-economical, aircraft. Be warned that if you do not provide sufficient air intakes for the engines you've placed, you may find that some of your engines shut down before others. Edit: I made a simple easy plane in career mode that is both stable and cheap: A trick i've used before is to put modular girders on the sides of the fuselage and putting the gear on the bottom of the girders. And above all: have fun! 1. make sure your main gear is not wobbling (ie. Privacy Policy. . Your link has been automatically embedded. Try disabling friction control with on the front landing gears. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Powered by Invision Community. So I have played the game for 200 hours and I love it. Thanks for everyone trying to help! 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. LV-N engines also have the advantage of using the same liquid for propellant that jet engines use for fuel. Either put more engines or reduce the amount of rocket fuel. Note: This is ONLY to be used to report spam, advertising, and problematic (harassment, fighting, or rude) posts. So if I start encountering wobble it's time to pull back on the stick and get in the air. Symmetry placement should give you perfect symmetry, as far as the game is concerned. Lift maxes out at 30 and declines beyond that point, so avoid excessive fuselage tilt.[1]. 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. They sometimes coincide with elevators. Thanks for the help guys. I have built lots of spaceplanes. 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. To recover the most value from your spaceplane, you should try to land on the runway at the Space Center (this tutorial, although it has been written for spacecraft and not spaceplanes, is a great help). . 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. 200 m/s runway stability just doesn't seem to have a worthwhile purpose to me, and is inducing counter productive engineering challenges. I was wrong. In an aircraft with two or more engines, this can potentially cause you to enter a flat spin which can be unrecoverable if your center of mass is behind your center of lift. Firstly you're going to want to make a short fuselage. 2022 Take-Two Interactive Software, Inc. Thank you and happy landings. 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. 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. 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. You probably won't have much luck landing the fuselage intact if your Mk3 plane gets its wings scorched off on reentry. One idea I haven't noticed here yet: "wire up" the landing gear, with strut connectors. Real planes do this as well. This thread is quite old. Close to empty tanks will allow you to fly slower, decelerate faster, and reduce touchdown strain. You may also want to deploy your landing gears to increase your drag, as well as airbrakes if you have them. When I Start Why Engine, It Goes Straight But As Soon As I Takeoff. KSP Stock Space Shuttle by _ForgeUser18393701. If you have a very short length of runway remaining and your parachutes can't slow you down fast enough, you'll be forced to cut the chutes and attempt a second landing without them. 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. Landing is hard. If you have trouble pitching up enough to land at a reasonable speed, you can increase your maneuverability by toggling your flaps, canards and ailerons to greater than 100% control authority. if mounted on not struted part) 2. put your main gear slightly behind center of mass. T-1 "Dart" engines are unique amongst conventionally-fuelled rocket engines: They have close to the highest efficiency in both vacuum and low atmosphere. A Ravenspear Mk3 taking off from the Runway in version 1.0.5. To takeoff and land at low speed, it's helpful to rotate the wings so the leading edge is slightly above the trailing edge. Descending greater than -10 m/s usually makes a mess. As you reach 100m/s, hold S to pull the stick back, and you should be in the air! Now imagine what happens like that. They could go up to 120 m/s on the runway and still not lift up. The tutorial below explains everything very well. 2022 Take-Two Interactive Software, Inc. For this to happen, I'm assuming you're using rocket fuel tanks. To do this, take a few barrels of your jet fuel, stick them on the back of your aircraft. Increasing the number of intakes will not allow you to continue using your jet engines at higher altitudes. 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. Pasted as rich text. 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. Maybe ;making the tailwheel less stiff would help, too. Second try, speed over land reached over 210 m/s and it didn't flip. 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. here are some images and a gif. 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). How do I fix this? Having said all that, these are the issues you must contend with. Also, excessive use of the rudder usually causes the plane to spin out of control and crash. You cannot paste images directly. If rear landing gear are strutted together, or braced to a center point, they are less likely to torque in different directions. 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. I've had stability issues in planes where I'd have proper gear setup, balanced weight and lift. 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. 2022 Take-Two Interactive Software, Inc. http://kerbalspaceprogram.com/forum/showthread.php/13851-The-woes-of-building-a-space-plane?highlight=woes+spaceplane. Vice versa a plane with lots of control surfaces will be perfectly controllable (maybe even too much) but may have big difficulties with taking off and landing at reasonable speeds. This can easily cause you to crash on landing. The FedEx plane pulled back up in time to avoid a collision. Unstable Aircraft: "FAR Firehound" (Stock). This allows you to takeoff at lower speeds and on shorter runways, and likewise for landing. Works well on small craft. 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. 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. 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. Note that the lift rating does not mean that the wings will automatically lift a spaceplane into the air when it's moving forward. 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. When your nose is stable at about 10 degrees above the horizon, pull up hard and keep it pulled. Even with a stable landing, you may find that you don't have enough room on your desired landing area to come to a stop before you reach the end. Paste as plain text instead, So I have played the game for 200 hours and I love it. For a Mk1-based aircraft, your rear landing gears should not be tightly tucked together on the fuselage. 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. Thanks for all the help. 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. Brakes in the back keep you stable. 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 can turn into a fatal scenario if the center of mass gets behind the center of lift and you enter a flat spin. I have no problems using Mechjeb to launch rockets into orbit, rendezvousing and docking with other craft. Ideally, you ought to test landing the spaceplane with full fuel tanks and with nearly empty fuel tanks prior to taking your spaceplane to orbit. All of them had one thing in common though. Note that when your jet engines shut down simultaneously while climbing in otherwise normal flight, it is generally due to a lack of pressure from the altitude you're flying at. This is generally an issue of not spacing your landing gears out far enough apart. Next you need landing gear. However, they are extremely heavy for their power, weighing as much as a conventional rocket nearly 11 times more powerful. But also check to make sure that your wheels are placed symmetrically and your engines are aligned properly. I also used Intake build aid to balance the intakes. 1. tilt of the plane. Note that as you fly higher the air intakes will become less effective and you may come to a point when the engines will shut down due to the lack of air. To slow down faster, you can increase the braking strength of your rear wheels. I just thought my planes were too heavy or not enough control surfaces. But I am still not sure if there are more reasons or perhaps it is just a physics bug which I am wasting my time on. 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. For an example, see the A-10 Warthog's landing gears: link. They could go up to 120 m/s on the runway and still not lift up. 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. For myself, it always was the position of landing gear in terms of pitch. This page was last edited on 19 February 2020, at 07:08. Easier just to bring the rear wheels closer as well as a in line reacton wheel. This is starting to get really frustrating. As with everything in KSP, experiment, experiment, experiment. 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/.
Dave Dave Is He Michael Jackson,
Oldest Black Funeral Home United States,
Articles K