Either put more engines or reduce the amount of rocket fuel. If you're tired of big rockets that use tons of fuel and disintegrate in the atmosphere when coming back to Kerbin, this tutorial is perfect for you! Why does my plane roll left on takeoff : r/KerbalSpaceProgram - reddit KSC's runway is slightly north of Kerbin's equator and perfectly flat. Flying a Space Station through a GAS GIANT! 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. Plane spins/lurches to the side during takeoff? 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. Nothing bad will happen. Saves a lot of headache in wheels placement. Rapiers generally provide less thrust than a Whiplash at speeds below mach 2, but provide more thrust at higher speeds. First try speed over land reached over 210 m/s before flipping in the last second. 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. When your altitude reaches 35km, start pulling up gently. 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. One FL-T100 tank can't power any rocket into space, yet a Shock Cone Intake, a Mk1 Inline Cockpit, a half-filled FL-T100 and a J-X4 "Whiplash" Turbo Ramjet Engine aimed in the general direction of "up" will let you laugh your way past the 70km mark at nearly 1200m/s. Tutorial:Basic SSTO Design - Kerbal Space Program Wiki 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. 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. 3. make sure your center of mass is slightly in front of center of lift force. Now for wings, the "Wing Connector Type B" is the largest you have so far; connect a set of those where the centre of mass is. I have done everything imaginable to try to remedy this problem. (Idea is moot, if you haven't unlocked them yet.) In subsequent missions, you may want to launch with less fuel to cut down on cost and make landing a quicker and easier process. Heavy transport seaplane inspired to the Soviet Beriev A-40 Albatros which also appears in Evangelion 2.0! 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. See if there is still a problem when only travelling slowly, say <20m/s. - SF. For your first flight, it may be easiest to ignore yaw altogether and just maneuver by rolling slightly and pitching. Safety note: Disable the brakes on the front landing gear. . If your rear wheels are too far back the aircraft will not be able to pivot on the wheels and lift its nose up. 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. An altitude set to 18,000 meters tops off at 19,000 meters and drops to 15,700 meters . It's said that takeoffs are optional but landings are mandatory. 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. http://www.youtube.com/user/Cruzanak?. 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. I've had stability issues in planes where I'd have proper gear setup, balanced weight and lift. Alternatively, if you're returning from a high orbit or from an interplanetary trip, you can try repeated shallow passes through the atmosphere. This is all right if their high efficiency saves enough fuel, but that may not be the case in small spaceplanes with limited fuel capacity. Just after having taken off, the plane will immediately start rolling to the right, and completely uncontrollably. All the weight is pushed on the middle and it can't pull up. That, combined with a Unity joint bug, makes your plane bounce. For spaceplanes, avoid the FAT parts (wing, tail fin, and control surface). 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. If you plan on either dropping off cargo or picking up cargo and traveling with it, you'll generally want to locate your cargo bay at the middle of your center of gravity. 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! 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. Paste as plain text instead, Then at the top, we'll put one tail fin, centred on the end of the fuselage. You can also angle the wings themselves slightly upwards (using WASDQE) in order to make them generate more lift when horizontal. Hello, I am having a small problem with a plane I have built. However, I want to place my wheels where i want to and not only on X parallel surfaces. 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). Cookie Notice The same principle applies here. Center of Mass and Center of Lift are the usual causes of instability. All I have are the parts from the Aerodynamics tech and the gear bay (wheels). I have doubled the max stress value for aerodynamics failure in FAR for every category. For myself, it always was the position of landing gear in terms of pitch. This can turn into a fatal scenario if the center of mass gets behind the center of lift and you enter a flat spin. As such, you may want to line all forward Mk1 radial nodes on your aircraft with shock cones, if possible. You should have something called an "Elevon 1"; this will be the moving part for your wings. When your nose is stable at about 10 degrees above the horizon, pull up hard and keep it pulled. Check out the following guide for some good info: Your wheel base is the problem. What causes turbulence? | WOWK 13 News Thanks for the help guys. 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. https://wiki.kerbalspaceprogram.com/index.php?title=Tutorial:_Your_First_Plane&oldid=103052. 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). You could do it the kerbal way by attaching two SRBs to the nose of the plane pointing upwards. Note that the lift rating does not mean that the wings will automatically lift a spaceplane into the air when it's moving forward. 5.whether the body you anchor the landing gears to are firm. 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. KSP Stock Space Shuttle by _ForgeUser18393701. This thread is archived . - Make sure the landing gear is as close to the center of gravity as possible, just slightly behind it (for nosewheel aircraft). And also place them further apart. What you ought to be using is the Swept Wings and Elevon 1s instead of the Delta-Deluxe Winglets. This helps to keep the performance of your spaceplane stable with any amount of fuel. If there is, I would have found it long ago. 1. make sure your main gear is not wobbling (ie. This plane will be able to take off, travel somewhere, perform a crew report, and then land. 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). My plane won't take off :: Kerbal Space Program - Steam Community I removed them and it works fine now. Thanks for everyone trying to help! Planes and Ships - Shareables - Kerbal Space Program - CurseForge The Mk1 fuselage parts only tolerate up to 2000K, while Mk2 fuselages tolerate up to 2500K, and Mk3 fuselages tolerate up to 2700K. Not sure why you would want that stability for speeds in excess of 200 m/s though, as most planes will take off and land at far slower speeds. You need to make sure that the Orange axis on the rotate sphere is parallel to your, nose-tail axis. Suggest a Correction Copyright 2023 Nexstar Media Inc. All rights reserved. Re-entry heating can destroy parts of your spaceplane, or destroy it entirely. 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. Obviously jet engines are air-breathing, so you need to include air intakes in your spaceplane. A relatively low-drag alternative is to use an inverted cargo bay and some hydraulic cylinders with structural panels as a cargo elevator. So I have played the game for 200 hours and I love it. Tell ya what, I'm gonna try to recreate that thing in my sandbox and see what I get. I worked through the tutorials and I think my problem was most often a lack of lift, or perhaps more accurately sufficient control surfaces. To minimize drag, vertical tail fins can be kept minimal, since aircraft can be maneuvered adequately by roll and pitch alone. So I have played the game for 200 hours and I love it. This aircraft handles smoothly, no matter how you turn, roll and flip this aircraft, it will never lose control. If you have an account, sign in now to post with your account. 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). When you are near the end of the runway, quickly activate then detach them to get the nose pointing up. S5 moon rocket by lightbreaker_64. 2022 Take-Two Interactive Software, Inc. http://kerbalspaceprogram.com/forum/showthread.php/13851-The-woes-of-building-a-space-plane?highlight=woes+spaceplane. The reverse also happens. Powered by Invision Community. #2 DaSkippa Mar 14, 2014 @ 2:56am as Shkeec said check gear check gear check gear. Note: This is ONLY to be used to report spam, advertising, and problematic (harassment, fighting, or rude) posts. 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). 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. This helped immensely and if you haven't been doing this already, do it. They are able to operate at higher altitudes and can even continue operating in a vacuum by switching to a rocket mode. You may also want to deploy your landing gears to increase your drag, as well as airbrakes if you have them. Either one of those being misaligned will cause instability on the runway during takeoff (and the engines misaligned will cause flight problems). Tutorial: Your First Plane - Kerbal Space Program Wiki See the tutorial below. Plane rolls uncontrollably on take-off : r/KerbalSpaceProgram Please consider starting a new thread rather than reviving this one. My Space Plane Keeps Flipping Backwards On The - Dive into anything (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. 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. First, I'm sure this is WAY overengineered, but I haven't gotten to the point of caring about that yet. Your previous content has been restored. A control surface with 100% control surface portion will weigh twice as much as a wing with the same lift would weigh. Privacy Policy. You main problem is your landing gear. - KSP Matt Lowne 527K subscribers 1.3M views 2 years ago I've wanted. I do add a strut to each wheel out of habit since my earlier versions use to roll, better safe than sorry. FAA investigating 'close call' between planes at Boston airport Here is your convenient solution to this problem! It helps to have a center of gravity which is close to your engines so that the landing gears can be close to both. Kerbal Space Program 2 - Overview and Tutorial for All the New Parts I have found a solution to my problem. I have built lots of spaceplanes. You can either go with four "LY-O1 Fixed" or a tricycle of two LY-01 near the back and one "LY-05 Steerable" at the front; either is fine for now. Descending greater than -10 m/s usually makes a mess. You cannot paste images directly. 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. 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. 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. 4. Plane wobble during takeoff - KSP1 Gameplay Questions and Tutorials - Kerbal Space Program Forums 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? 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. But be careful and don't crash it! 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. An active front brake can cause your aircraft to rapidly and uncontrollably pivot left or right during landing, and high friction from the front wheel can potentially cause your plane to swerve violently both in landing and takeoff. 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. Plane - Kerbal Space Program Wiki 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. (Source). Here's a quick installment in to the. All rights reserved. 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. 200 m/s runway stability just doesn't seem to have a worthwhile purpose to me, and is inducing counter productive engineering challenges. 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. As such, you will need various control surfaces. wings, unless they're very well braced). [KSP] - Heavy Seaplane Take-off, Water-landing and Re-take-off! Espaol - Latinoamrica (Spanish - Latin America), http://forum.kerbalspaceprogram.com/threads/65638-Basic-Airplane-Space-Plane-Aero-Tutorial. Note: This tutorial was last updated for version 1.7.2. 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. 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. 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? 2022 Take-Two Interactive Software, Inc. For more information, please see our They sometimes coincide with ailerons on some, more space-economical, aircraft. 3. angle of the wheels. Keep at around 15 degrees to allow the plane to accelerate past 1000m/s. Note: Your post will require moderator approval before it will be visible. This is generally an issue of not spacing your landing gears out far enough apart. my center of lift is always slightly infront of my mass. 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. if its too far behind plane cannot lift. Display as a link instead, 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. Remember how you want your center of lift/drag to be behind the center of gravity? Note: Some high-efficiency rocket engines lose most of their power and efficiency in low atmosphere. All rights reserved. So if I start encountering wobble it's time to pull back on the stick and get in the air. Install S5 moon rocket By lightbreaker_64. Control surfaces are heavier than wings. If that's not an option, you can still recover some value by landing at any suitable flat place on Kerbin. Congratulations! 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. - Make sure you have enough control authority to lift the nose up. You should be able to navigate fairly readily, and with the superb efficiency of jet engines, you should have plenty of fuel to go anywhere you need to go. 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. 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. When flying straight the plane is pretty stable but pitching up causes a sharp roll and I cant figure out why. I moved the back landing gear to right underneath the COM. 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!

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