If you are using B9 Rocketery or other parts that utilize Firesplitter, this is normal. This thread is quite old. Such flight involves lift-induced drag, but reduces the total thrust required to traverse a distance at a given speed. Paste as plain text instead, 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. 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. 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. Here's a quick installment in to the. But be careful and don't crash it! I started investigating why this was happening. Also, excessive use of the rudder usually causes the plane to spin out of control and crash. 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 the center of Kerbin than the middle (because it's totally flat), the runway is a valley from a gravitational frame of reference. Does your plane never pull up taking off? I have been building - reddit 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. A good example of this is at the KSC runway when landing on a 90 degree bearing. 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. 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. To minimize the risk of such a situation, try to land on a large patch of flat open ground approaching a downhill slope. Planes and Ships - Shareables - Kerbal Space Program - CurseForge Thanks for all the help. The Kerbal Space Program subreddit. You want to get up to get the gear tucked away and reduce drag. 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. 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. 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'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. Tutorial: Basic Plane Design - Kerbal Space Program Wiki To do this, take a few barrels of your jet fuel, stick them on the back of your aircraft. Plane rolls uncontrollably on take-off : r/KerbalSpaceProgram 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. They all had landing gear placed at the front and at the back. When flying straight the plane is pretty stable but pitching up causes a sharp roll and I cant figure out why. i have no idea why this happens please help. When dealing with high-speed landings, you may touch down too quickly and cause the front of the plane to smack into the runway. Then this tutorial is for you. 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. 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. 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. What causes turbulence? | WOWK 13 News If you keep all of the fuel in the front, you may find that your center of mass drifts backwards as your fuel drains. As you reach 100m/s, hold S to pull the stick back, and you should be in the air! 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). Increasing the number of intakes will not allow you to continue using your jet engines at higher altitudes. 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? Ideally, the wings should be tilted upward at an angle about 3-5 from the fuselage for optimal lift-to-drag ratio.[1]. 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. All I have are the parts from the Aerodynamics tech and the gear bay (wheels). If your spaceplane is able to fly and land steadily at low speeds but just you're having difficulty slowing down as you approach the runway, try to reach your desired speed first and then approach the runway in almost level flight. Plane wobble during takeoff - Kerbal Space Program Forums All rights reserved. here are some images and a gif. 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. FOX 56 News Video More Videos 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/. 2022 Take-Two Interactive Software, Inc. LV-N exceeds 75% of its full power at just 7700m altitude on Kerbin. 2 will usually do nicely, but 3 or 4 are usually better (but of course heavier, and this tutorial assumes you use 2). Plane spins/lurches to the side during takeoff? Powered by Invision Community. While all other cargo bays are fine for making spaceplanes, the Mk3 Cargo Ramp produces obscene amounts of drag, which can easily prevent reaching orbital velocities by itself. Clear editor. 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. 2. For some reason, when the plane is trying to take off and pulling up, the plane begins to bounce on it's front wheels (the back wheel kicks up), whichhinders the plane taking off. Kerbal Space Program 2 - Overview and Tutorial for All the New Parts For spaceplanes, avoid the FAT parts (wing, tail fin, and control surface). 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. So I have played the game for 200 hours and I love it. Subscribe! Mods needed for this aircraft to work: Procedural wings, Adjustable Landing Gear, FAR. Center of Mass and Center of Lift are the usual causes of instability. 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. 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. Tutorial:Basic SSTO Design - Kerbal Space Program Wiki DO NOT ANGLE THEM! I was attaining high speeds on the runway without getting off the ground, which made the plane yaw back and forth. While I am not a great plane builder there is a part in the structural (I think it is a pylon?) This ensures that your aircraft will go up once it achieves a high enough speed, and also helps with placing ailerons. This can turn into a fatal scenario if the center of mass gets behind the center of lift and you enter a flat spin. However it's huge size can make it tricky to take off from the runway without destroying the engine. 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. Note: This is ONLY to be used to report spam, advertising, and problematic (harassment, fighting, or rude) posts. 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. 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. 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.