As you reach 100m/s, hold S to pull the stick back, and you should be in the air! 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. 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. They sometimes coincide with elevators. This plane will be able to take off, travel somewhere, perform a crew report, and then land. This would indicate two problems. (Source). . When I Start Why Engine, It Goes Straight But As Soon As I Takeoff. I shouldn't have placed landing gears on the fuselage, I found that placing landing gears on flat surfaces like wings make landing gears a lot more stable. 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. 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. Lift maxes out at 30 and declines beyond that point, so avoid excessive fuselage tilt.[1]. Paste as plain text instead, 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. Any plane needs speed - so you need thrust (usually). Also, excessive use of the rudder usually causes the plane to spin out of control and crash. 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. Descending greater than -10 m/s usually makes a mess. Bit late i know, but i had the same problem. As with everything in KSP, experiment, experiment, experiment. Description: "Originally called the Cockpit-plus-two, the 5 seat "Cockatoo" is a second-generation command pod that provides both safety and comfort It is rumored to have enough room to pack several days of emergency snack rations and board games" Useful stats: As the description states this large command pod holds 5 kerbals Just like with rockets, get some courageous Kerbal in the cockpit and let's get started! 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). 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. Beyond that, you're going to get some wobble once you get close to take off speed. 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. When your nose is stable at about 10 degrees above the horizon, pull up hard and keep it pulled. All trademarks are property of their respective owners in the US and other countries. 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). As such, don't use control surfaces as substitutes for wings, and don't use more control surfaces than you need. Reddit and its partners use cookies and similar technologies to provide you with a better experience. - KSP - YouTube 0:00 / 31:25 Flying a Space Station through a GAS GIANT! Necessary for heavy/long spaceplane. 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. It's a prolem enough I have sever differen gear subassemblies that are stable (un wobbly) I can then position depending on COM. 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. Take the large delta wings and place them on the aircraft. Keep at around 15 degrees to allow the plane to accelerate past 1000m/s. I have done everything imaginable to try to remedy this problem. If you placed the main wings at the centre of mass and then added the smaller wings behind, this should be correct already. You probably won't have much luck landing the fuselage intact if your Mk3 plane gets its wings scorched off on reentry. 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. Powered by Invision Community. See the tutorial below. This is generally an issue of not spacing your landing gears out far enough apart. You cannot paste images directly. 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. @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. * Unlock steering and disable brakes on front gear. If the front landing gear touches down first and has its brakes on, it's going to make the rest of your aircraft pivot around it as it's pressed into the ground. I dont really need 200m/s for take off. Privacy Policy. This plane will be able to take off, travel somewhere, perform a crew report, and then land. Similar principles apply when finding suitable landing sites away from the KSC. Increasing the number of intakes will not allow you to continue using your jet engines at higher altitudes. 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. They are able to operate at higher altitudes and can even continue operating in a vacuum by switching to a rocket mode. Pasted as rich text. 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. 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. 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. A control surface with 100% control surface portion will weigh twice as much as a wing with the same lift would weigh. 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. Balanced fuel saves Kerbal lives. An altitude set to 18,000 meters tops off at 19,000 meters and drops to 15,700 meters . 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. How do I fix this? (For test purposes, all aircraft are not pitched up and SAS is turned off. The problem could be about the angle of wheels, though there could be more problems with the COM and wheels placement. Now I'll walk you through a basic aircraft; fancy stuff like science equipment can be added later. They all had landing gear placed at the front and at the back. http://www.youtube.com/user/Cruzanak?. 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. Having said all that, these are the issues you must contend with. All I have are the parts from the Aerodynamics tech and the gear bay (wheels). . Wow, if you need 200 m\s to take off, you should think about adding more lift. I am definitely aware that there are multiple reasons as to why the plane flips. One idea I haven't noticed here yet: "wire up" the landing gear, with strut connectors. All rights reserved. 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. Here, the. All trademarks are property of their respective owners in the US and other countries. I see absolutely no need to be traveling that fast down the runway. 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. This is good for spaceplanes operating in low-oxygen atmospheres where jet engines can't be used. At around . You want to get up to get the gear tucked away and reduce drag. Keep your nose pointed prograde as you descend through the atmosphere. Upload or insert images from URL. Real planes do this as well. If there is, I would have found it long ago. 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. Is there a way to rectify this problem. Second try, speed over land reached over 210 m/s and it didn't flip. And also place them further apart. 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 helps to keep the performance of your spaceplane stable with any amount of fuel. To takeoff and land at low speed, it's helpful to rotate the wings so the leading edge is slightly above the trailing edge. 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. Heavy transport seaplane inspired to the Soviet Beriev A-40 Albatros which also appears in Evangelion 2.0! Try not to place your gears to wings, especially wingtips - if they wobble even slightly, your plane lose the balance. The issue is my plane rolls very sharply to the left any time I pitch up. Do you have a screenshot of the craft? Try disabling friction control with on the front landing gears. 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. Such as not producing lift, which is not what you want with a plane. Landing can be trickier for spaceplanes since they are designed for higher speeds than other aircraft and may not be able to fly level at speeds low enough for an easy landing (<50 m/s). It's said that takeoffs are optional but landings are mandatory. Cookie Notice I've had stability issues in planes where I'd have proper gear setup, balanced weight and lift. If rear landing gear are strutted together, or braced to a center point, they are less likely to torque in different directions. This ensures that your aircraft will go up once it achieves a high enough speed, and also helps with placing ailerons. Make sure that all of your landing gears are pointing in exactly the same direction. These have an ISP of 800 in a vacuum which is significantly better than all other rocket motors except the very weak IX-6315 ion rocket. LV-N engines also have the advantage of using the same liquid for propellant that jet engines use for fuel. 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. I can not get any aircraft-style spaceplane take off from the runway, they will stay on until the end, where the engines crash into the ground and explode. 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. Although I usually only need 50 m/s for most planes to wobble out of control. 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? Either put more engines or reduce the amount of rocket fuel. All of them had one thing in common though. 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! You can post now and register later. I was wrong. The issue is my plane rolls very sharply to the left any time I pitch up. 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. The Kerbal Space Program subreddit. wings, unless they're very well braced). 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 have never successfully landed a single aircraft before as they all tend to roll over when landing at high speed. 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. You can also angle the wings themselves slightly upwards (using WASDQE) in order to make them generate more lift when horizontal. 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! Easier just to bring the rear wheels closer as well as a in line reacton wheel. For this to happen, I'm assuming you're using rocket fuel tanks. Note: Some high-efficiency rocket engines lose most of their power and efficiency in low atmosphere. The same principle applies here. Alternatively, you can try landing at higher speeds with your nose pointed further down, but this increases challenges with stability and deceleration while on the runway. 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. For spaceplanes, avoid the FAT parts (wing, tail fin, and control surface). So you want to make a plane but all your contraptions explode on the runway, crash into the runway a few seconds after taking off, crash into the side of the runway, crash into the ocean after doing a tight turn or otherwise fail to do what you intended? Ailerons to roll your aircraft should be placed as far off to the edges of your wings as possible. 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. 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? Powered by Invision Community. 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. My first test of the plane parts in KSP2.Like and Subscribe for more Kerbal stuffs!#kerbalspaceprogram #ksp2 #kerbalspaceprogram2 #shorts #spaceplane #nasa When gear is placed, it has just one point of attachment. Clear editor. Pasted as rich text. Note: The large delta wing will ensure you won't backflip. - Make sure the landing gear is as close to the center of gravity as possible, just slightly behind it (for nosewheel aircraft). Here is the best aircraft I have created to date: Jet Aircraft. Be aware that while this angle will provide the lowest possible landing speed for your spaceplane, it will create problems if your center of gravity is too far ahead of your rear landing gears (causing a high-speed nose collision on touchdown) or if your rear landing gears are too far ahead of your engines, causing them to strike the runway first. Valve Corporation. 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 above all: have fun! 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. Your aircraft might just be too heavy - there might not be enough wing lift for it to take off the ground. When dealing with high-speed landings, you may touch down too quickly and cause the front of the plane to smack into the runway. For all your gaming related, space exploration needs. Notice how the landing gears are placed out on the wings. Firstly you're going to want to make a short fuselage. 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. Firstly, inadequate air intakes for the number and type of engines you're using (causing some engines to shut down before others). The tutorial below explains everything very well. Now for the engines. This page was last edited on 17 December 2021, at 13:14. Note: This is ONLY to be used to report spam, advertising, and problematic (harassment, fighting, or rude) posts. Alternatively, if you're returning from a high orbit or from an interplanetary trip, you can try repeated shallow passes through the atmosphere.
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