Also avoid the basic fin for the same reason. [KSP] - Heavy Seaplane Take-off, Water-landing and Re-take-off! 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. This would indicate two problems. Is there a way to rectify this problem. When you are near the end of the runway, quickly activate then detach them to get the nose pointing up. Go on, and take the plane capsule which looks like a converted fuel storage device Contents 1 Making a fuselage 2 Understanding Lift 3 Control Surfaces 3.1 Elevator 3.2 Aileron 3.3 Rudder 4 Landing gear Making a fuselage Any plane needs speed - so you need thrust (usually). 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. 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). (Idea is moot, if you haven't unlocked them yet.) 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. 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. 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). These should be in the bottom left next to the display of the cost of the aircraft. 2022 Take-Two Interactive Software, Inc. 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! All the weight is pushed on the middle and it can't pull up. Pasted as rich text. You main problem is your landing gear. Note: Some high-efficiency rocket engines lose most of their power and efficiency in low atmosphere. There are several forces in Kerbal Space Program which have an effect on the flight characteristics of SSTO craft. Does your plane never pull up taking off? I have been building - reddit This ensures that your aircraft will go up once it achieves a high enough speed, and also helps with placing ailerons. Subscribe! Geometric shape of the body you attach the landing gear to. 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. Your link has been automatically embedded. 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. All of them had one thing in common though. 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. A control surface with 100% control surface portion will weigh twice as much as a wing with the same lift would weigh. When dealing with high-speed landings, you may touch down too quickly and cause the front of the plane to smack into the runway. First, I'm sure this is WAY overengineered, but I haven't gotten to the point of caring about that yet. You should have something called an "Elevon 1"; this will be the moving part for your wings. 3. angle of the wheels. Any plane needs speed - so you need thrust (usually). I just thought my planes were too heavy or not enough control surfaces. This plane will be able to take off, travel somewhere, perform a crew report, and then land. 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), which hinders the plane taking off. Ideally, the wings should be tilted upward at an angle about 3-5 from the fuselage for optimal lift-to-drag ratio.[1]. Then this tutorial is for you. Angled landing gear create rotational force for whatever reason. KSP Stock Space Shuttle by _ForgeUser18393701. 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. Mods needed for this aircraft to work: Procedural wings, Adjustable Landing Gear, FAR. 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. 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. Depending on which surface you place them on, they might not be parallel to the axis in which case. 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? You can deploy your chutes just prior to touchdown for rapid deceleration. (Yes, you personally, you lucky thing! Mechjeb Spaceplane Guidance. (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. I worked through the tutorials and I think my problem was most often a lack of lift, or perhaps more accurately sufficient control surfaces. All rights reserved. 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. My spaceplanes keep drifting off runway during takeoff. What am I doing Real planes do this as well. Or adding a RATO boosters. - KSP - YouTube 0:00 / 31:25 Flying a Space Station through a GAS GIANT! If you have an account, sign in now to post with your account. The Mk1 fuselage parts only tolerate up to 2000K, while Mk2 fuselages tolerate up to 2500K, and Mk3 fuselages tolerate up to 2700K. 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. 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 problem could be about the angle of wheels, though there could be more problems with the COM and wheels placement. Check out the following guide for some good info: Your wheel base is the problem. 4. http://www.youtube.com/user/Cruzanak?. Also, lift is usually placed in the middle-to-back of the wing, depending on the shape. For heavy rockets, it might be required to use structure to space the gears away from the body to allow more pitch. Some testing is usually required with new designs to determine the best ascent profile. 2022 Take-Two Interactive Software, Inc. http://forum.kerbalspaceprogram.com/threads/99660-0-25-Adjustable-Landing-Gear-v1-0-4%28doors-fixed%29-Nov-14. Kerbal Space Program 2 - Overview and Tutorial for All the New Parts What you ought to be using is the Swept Wings and Elevon 1s instead of the Delta-Deluxe Winglets. Tips aplenty in this thread: http://kerbalspaceprogram.com/forum/showthread.php/13851-The-woes-of-building-a-space-plane?highlight=woes+spaceplane It taught me everything I know, except for the stuff I learned elsewhere. 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. 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. If rear landing gear are strutted together, or braced to a center point, they are less likely to torque in different directions. i have no idea why this happens please help. You can also angle the wings themselves slightly upwards (using WASDQE) in order to make them generate more lift when horizontal. ), 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". One idea I haven't noticed here yet: "wire up" the landing gear, with strut connectors. A FedEx cargo plane in Austin nearly landed on a runway where a Southwest flight was preparing to take off. If you can't slow down in time, you can simply flick your engines back on to take off and turn around for another try as you pass over the coast. Tutorial: Basic Plane Design - Kerbal Space Program Wiki Quick context, I am a software engineer. Set up for a long glide path, and watch rate of climb indicator at top of screen, aim for -5 m/s. 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. 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? Plane wobble during takeoff - Kerbal Space Program Forums 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. All rights reserved. Another trick is to move the rear landing gear forward, closer to the center of gravity. That said, parachutes are an exceedingly effective means of reducing your stopping distance. Plane spins/lurches to the side during takeoff? As such, you will need various control surfaces. The reverse also happens. 1. make sure your main gear is not wobbling (ie. I removed them and it works fine now. You want to get up to get the gear tucked away and reduce drag. Bit late i know, but i had the same problem. They all had to use the runway drop to take off. - KSP Matt Lowne 527K subscribers 1.3M views 2 years ago I've wanted. Unstable Aircraft: "FAR Firehound" (Stock). They could go up to 120 m/s on the runway and still not lift up. I managed to successfully takeoff and land this aircraft at least 20 times in a roll now and I haven't even lost a single pilot flying this. This material may not be published, broadcast, rewritten, or redistributed. 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. http://kerbalspaceprogram.com, Press J to jump to the feed. Does anybidy have any tips on how to build spaceplanes? The rudder is mostly used when landing and when attempting to line up a shot (in a fighter plane). my planes keep flipping backwards on take off : r/KerbalAcademy - reddit LV-N "Nerv" nuclear thermal rockets are commonly used on SSTOs for the rocket stage if Rapiers are not used. 2 will usually do nicely, but 3 or 4 are usually better (but of course heavier, and this tutorial assumes you use 2). Your previous content has been restored. As such, you may want to line all forward Mk1 radial nodes on your aircraft with shock cones, if possible. First try speed over land reached over 210 m/s before flipping in the last second. 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. 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. 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. But regardless of that, try very hard to let the plane fly itself off the ground without you applying any controls. Your very own tutorial.). 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. Do you have new pics after you moved the rear wheels forward? 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. This can easily cause you to crash on landing. 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. If you keep all of the fuel in the front, you may find that your center of mass drifts backwards as your fuel drains. KSP short takeoff plane test | Simple Horten Ho 229 replica So if I start encountering wobble it's time to pull back on the stick and get in the air. DO NOT ANGLE THEM! My Space Plane Keeps Flipping Backwards On The Runway. You want an elevon on each set of wings. Wow, if you need 200 m\s to take off, you should think about adding more lift. I'm trying to do some of the surveying and taxi-ing missions because now that's all the games giving me but flying with a regular rockets just not working for me. My first test of the plane parts in KSP2.Like and Subscribe for more Kerbal stuffs!#kerbalspaceprogram #ksp2 #kerbalspaceprogram2 #shorts #spaceplane #nasa Why is it doing this? This page was last edited on 17 December 2021, at 13:14. 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! Note that the lift rating does not mean that the wings will automatically lift a spaceplane into the air when it's moving forward. It is due to the spinning up of the engines. 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. 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. If you need to carry more fuel, consider using the Big-S Delta Wing as it provides the same lift-to-drag and lift-to-weight ratio as any other wing of the same mass, yet has the ability to carry fuel as well. 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? Ailerons to roll your aircraft should be placed as far off to the edges of your wings as possible. My plane tends to wobble on the runway with the stock game so i decided to download FAR, but the problem still persists. Note that no wings will tolerate more than 2400K, so the difference in temperature tolerance between Mk2 and Mk3 fuselages isn't terribly significant. Yours is a very light plane, and the standard suspension settings are for a medium heavy plane -- so your suspension is too stiff. You can post now and register later. I have created planes that have landing gears place right under the wing tips but they still won't work. Make sure that all of your landing gears are pointing in exactly the same direction. 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. Now I'll walk you through a basic aircraft; fancy stuff like science equipment can be added later. When your nose is stable at about 10 degrees above the horizon, pull up hard and keep it pulled. 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. An altitude set to 18,000 meters tops off at 19,000 meters and drops to 15,700 meters . Note: Your post will require moderator approval before it will be visible. 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. For an example, see the A-10 Warthog's landing gears: link. If you placed the main wings at the centre of mass and then added the smaller wings behind, this should be correct already. To do this, take a few barrels of your jet fuel, stick them on the back of your aircraft. Although I usually only need 50 m/s for most planes to wobble out of control. When your altitude reaches 35km, start pulling up gently. 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. And above all: have fun! Brakes in the back keep you stable. * Gear not mounted to parts that will flex (e.g. 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. Kerbal Space Program 2's early access launch is only for seasoned You cannot paste images directly. Hit the launch button and watch your magnificent bird fly! At that point, the plane could potentially start spinning around as a result of losing the benefit of the gimbal control of the engine. 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 . . Heavy Cargo Space Plane SSTO Download. 6.4K Downloads Updated Jun 7, 2017 Created Jun 7, 2017. . 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. Reddit and its partners use cookies and similar technologies to provide you with a better experience. 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. Balanced fuel saves Kerbal lives. KSP 2 speculation: I believe terraforming will be a feature of the game. If you can maintain level flight at about 30-40 m/s, you should be able to perform an ocean landing if needed. You can post now and register later. A good example of this is at the KSC runway when landing on a 90 degree bearing. Be aware that landing on water is an option if your spaceplane can fly level at less than ~40-50 m/s. That way you can use aerodynamics to lower the tail, rather than trying to raise the nose. Tutorial:Aeris 4A mission - Kerbal Space Program Wiki How to Fly a Plane - KSP Beginner's Tutorial - YouTube As with everything in KSP, experiment, experiment, experiment. I scoured the entire web for a solution, but found no working solution or at least dont work every time. (For test purposes, all aircraft are not pitched up and SAS is turned off. 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. When I Start Why Engine, It Goes Straight But As Soon As I Takeoff. 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. It's said that takeoffs are optional but landings are mandatory. 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. * Unlock steering and disable brakes on front gear. 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). Center of Mass and Center of Lift are the usual causes of instability. Your aircraft might just be too heavy - there might not be enough wing lift for it to take off the ground. That, combined with a Unity joint bug, makes your plane bounce.
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