However it's huge size can make it tricky to take off from the runway without destroying the engine. If your rear wheels are too far back the aircraft will not be able to pivot on the wheels and lift its nose up. This is good for spaceplanes operating in low-oxygen atmospheres where jet engines can't be used. Note that no wings will tolerate more than 2400K, so the difference in temperature tolerance between Mk2 and Mk3 fuselages isn't terribly significant. 67K subscribers in the KerbalAcademy community. Necessary for heavy/long spaceplane. 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. Check out the following guide for some good info: Your wheel base is the problem. I have found a solution to my problem. Your link has been automatically embedded. I have built lots of spaceplanes. For your first flight, it may be easiest to ignore yaw altogether and just maneuver by rolling slightly and pitching. If you keep all of the fuel in the front, you may find that your center of mass drifts backwards as your fuel drains. I have never successfully landed a single aircraft before as they all tend to roll over when landing at high speed. It is also said that a good landing is one you can walk away from. Your plane is almost finished. everytime i make a powered plane, it always flips over and points backwards after i take off. I have created a score of other aircrafts with different designs but deleted them because they didnt work even on the runway. http://www.youtube.com/user/Cruzanak?. One final point to consider is the mass you're planning to store in the fuselage. Privacy Policy. my center of lift is always slightly infront of my mass. 2022 Take-Two Interactive Software, Inc. 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. Your link has been automatically embedded. Pasted as rich text. 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! Clear editor. They could go up to 120 m/s on the runway and still not lift up. This plane will be able to take off, travel somewhere, perform a crew report, and then land. Create an account to follow your favorite communities and start taking part in conversations. 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. Display as a link instead, 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. They could go up to 120 m/s on the runway and still not lift up. (Sorry For Poor Image Quality) : r/KerbalAcademy 385 votes, 49 comments. What causes turbulence? | WOWK 13 News Another trick is to move the rear landing gear forward, closer to the center of gravity. But also check to make sure that your wheels are placed symmetrically and your engines are aligned properly. Congratulations! KSC's runway is slightly north of Kerbin's equator and perfectly flat. All of these problems can be exacerbated or reduced by adjusting the amount of fuel in your tanks during landing. I do add a strut to each wheel out of habit since my earlier versions use to roll, better safe than sorry. 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. The centre of mass was between the 2 landing gears. 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. These have extremely poor temperature tolerance and will almost inevitably break up during atmospheric reentry. Also, excessive use of the rudder usually causes the plane to spin out of control and crash. All trademarks are property of their respective owners in the US and other countries. For heavy rockets, it might be required to use structure to space the gears away from the body to allow more pitch. 32.5K Downloads Updated Dec 11, 2014 Created Dec 11, 2014. Also note that for maximum efficiency, you should make sure that your horizontal control surfaces are rotated to exactly the same pitch that you've rotated your wings. wings, unless they're very well braced). 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. 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. (Idea is moot, if you haven't unlocked them yet.) Thank you and happy landings. Keep at around 15 degrees to allow the plane to accelerate past 1000m/s. This is either a collider or design issue, if the craft doesn't have enough lift initially to get off the ground it will bounce a bit before taking off. When I Start Why Engine, It Goes Straight But As Soon As I Takeoff. You may also want to deploy your landing gears to increase your drag, as well as airbrakes if you have them. This is an important distinction; a plane with great lift rating but without any control surfaces will fly easily but will be almost uncontrollable. It provides a wider, more stable wheel base while keeping the wheels straight up and down (no camber). To slow down faster, you can increase the braking strength of your rear wheels. Place your rear wheels/gear in front of the flaps on your wings. if mounted on not struted part). Flying a Space Station through a GAS GIANT! - KSP - YouTube I was wrong. 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. I had this one plane, very fast, It would go to 170 m/s on the runway then drop of the end and soar very nicely. At that point, the plane could potentially start spinning around as a result of losing the benefit of the gimbal control of the engine. Before you can make a successful plane, you must understand what makes a plane go in places other than the ground - the wings. Heavy transport seaplane inspired to the Soviet Beriev A-40 Albatros which also appears in Evangelion 2.0! Cookie Notice 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. 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. Firstly you're going to want to make a short fuselage. You can even try refueling it before recovering your spaceplane further increasing your recovering value. 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. Or maybe launching it in a vertical, Space Shuttle-style config. Let it get good and clear of the ground before applying any control to it. Need to move them up. Mechjeb Spaceplane Guidance : r/KerbalSpaceProgram - reddit 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. 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 lift-rating means is that the wing section will resist motion perpendicular to its plane. If you have an account, sign in now to post with your account. (For test purposes, all aircraft are not pitched up and SAS is turned off. My Space Plane Keeps Flipping Backwards On The - Dive into anything 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! @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. When flying straight the plane is pretty stable but pitching up causes a sharp roll and I cant figure out why. At around . 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. (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. Then this tutorial is for you. 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. Display as a link instead, First try speed over land reached over 210 m/s before flipping in the last second. My plane usually take off at a little over 120m/s. Your previous content has been restored. Press question mark to learn the rest of the keyboard shortcuts. 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. Even a small deviation can cause serious instability, making your aircraft bounce and jolt left and right even during takeoff. 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. If rear landing gear are strutted together, or braced to a center point, they are less likely to torque in different directions. This is starting to get really frustrating. You cannot paste images directly. 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. I have also thought about a wider base. The Mk1 fuselage parts only tolerate up to 2000K, while Mk2 fuselages tolerate up to 2500K, and Mk3 fuselages tolerate up to 2700K. 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. Here are a few pictures of it: Take a picture with center of mass and center of lift turned on. While I am not a great plane builder there is a part in the structural (I think it is a pylon?) Angled landing gear create rotational force for whatever reason. Note: Some high-efficiency rocket engines lose most of their power and efficiency in low atmosphere. 6.4K Downloads Updated Jun 7, 2017 Created Jun 7, 2017. . * Unlock steering and disable brakes on front gear. But be careful and don't crash it! Firstly, inadequate air intakes for the number and type of engines you're using (causing some engines to shut down before others). 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. I see absolutely no need to be traveling that fast down the runway. Such as not producing lift, which is not what you want with a plane. Tell ya what, I'm gonna try to recreate that thing in my sandbox and see what I get. 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. 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. Tutorial:Basic SSTO Design - Kerbal Space Program Wiki Kerbal Space Program 2's early access launch is only for seasoned Plane wobble during takeoff - Kerbal Space Program Forums Close to empty tanks will allow you to fly slower, decelerate faster, and reduce touchdown strain. 1. The problem could be about the angle of wheels, though there could be more problems with the COM and wheels placement. However, I want to place my wheels where i want to and not only on X parallel surfaces. 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. All trademarks are property of their respective owners in the US and other countries. After placing wheels I always use the rotate gizmo on snap with absolute orientation. To minimize drag, vertical tail fins can be kept minimal, since aircraft can be maneuvered adequately by roll and pitch alone. 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. This aircraft handles smoothly, no matter how you turn, roll and flip this aircraft, it will never lose control. When gear is placed, it has just one point of attachment. I took off and at 60 m/s I was in the air! In fact, nothing will happen at all, and that's probably bad, so put an air intake on your plane anyway. While having the same stock parts as in the VAB, spaceplane design is obviously quite different from pure rocket design. - Have enough lift, either by a big wing area or high speed. 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 For a Mk1-based aircraft, your rear landing gears should not be tightly tucked together on the fuselage. 1. make sure your main gear is not wobbling (ie. 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. This thread is quite old. You cannot paste images directly. 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. Whether you're storing your fuel in fuselage sections, wing sections, or attached inside of cargo bays, it's generally a good idea to keep equal amounts of fuel at equal distances from your center of mass. 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. So yesterday I was playing some KSP2, and resumed the game from a save where I had landed in Duna. The same principle applies here. All of them had one thing in common though. Tutorial: Basic Plane Design - Kerbal Space Program Wiki Do you have new pics after you moved the rear wheels forward? Consequently, atmospheric reentry is less dangerous with a Mk2 or Mk3 fuselage, compared to reentry with Mk1 fuselages. They sometimes coincide with elevators. To do this, take a few barrels of your jet fuel, stick them on the back of your aircraft. Try disabling friction control with on the front landing gears. and our It is advised to place your control surfaces as far from your center of mass as possible. Please consider starting a new thread rather than reviving this one. How to keep an airplane stable on the runway in Kerbal Space - Arqade This helped immensely and if you haven't been doing this already, do it. Now I'll walk you through a basic aircraft; fancy stuff like science equipment can be added later. Notice how the landing gears are placed out on the wings. I also used Intake build aid to balance the intakes. http://kerbalspaceprogram.com, Press J to jump to the feed. 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. Clear editor. Your very own tutorial.). My Space Plane Keeps Flipping Backwards On The Runway. This would indicate two problems. 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. 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. This page was last edited on 19 February 2020, at 07:08. Either one of those being misaligned will cause instability on the runway during takeoff (and the engines misaligned will cause flight problems). Now for the engines. The design I used is similar to what I normally used for planes but I had to swap out parts and make it smaller to compensate for Career mode changes. The tutorial below explains everything very well. Hit the launch button and watch your magnificent bird fly! They all had landing gear placed at the front and at the back. 2022 Take-Two Interactive Software, Inc. 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 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. Planes and Ships - Shareables - Kerbal Space Program - CurseForge I've had stability issues in planes where I'd have proper gear setup, balanced weight and lift. 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. . 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. 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. 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. 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. Note that the lift rating does not mean that the wings will automatically lift a spaceplane into the air when it's moving forward. The reverse also happens. 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. 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. Easier just to bring the rear wheels closer as well as a in line reacton wheel. 2 will usually do nicely, but 3 or 4 are usually better (but of course heavier, and this tutorial assumes you use 2). And above all: have fun! Note: The large delta wing will ensure you won't backflip. A Ravenspear Mk3 taking off from the Runway in version 1.0.5. 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. Remember how you want your center of lift/drag to be behind the center of gravity? Keep your nose pointed prograde as you descend through the atmosphere. Landing is hard. KSP handling death investigation High Winds Cause Widespread Power Outages Ohio . Even if you can takeoff, landing will usually destroy tat aircraft so survival rate on an aircraft for a typical kerbal is nearly zero. I started investigating why this was happening. That's over 2x the normal recommended max. As lift increases you remove some strain on the gear, however you've just increased the amount of sag. "Type E" is the smallest you should have, and you want a set of those connected at the back of the fuselage. EDIT: It was the b9 procedural wings. my planes keep flipping backwards on take off : r/KerbalAcademy - reddit 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.