This material may not be published, broadcast, rewritten, or redistributed. . A control surface with 100% control surface portion will weigh twice as much as a wing with the same lift would weigh. 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. This is for the same reason that you keep your fuel balanced. Symmetry placement should give you perfect symmetry, as far as the game is concerned. Although I usually only need 50 m/s for most planes to wobble out of control. Do you have new pics after you moved the rear wheels forward? 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. What you ought to be using is the Swept Wings and Elevon 1s instead of the Delta-Deluxe Winglets. Then at the top, we'll put one tail fin, centred on the end of the fuselage. So if I start encountering wobble it's time to pull back on the stick and get in the air. It is also said that a good landing is one you can walk away from. my planes keep flipping backwards on take off . Tell ya what, I'm gonna try to recreate that thing in my sandbox and see what I get. This can turn into a fatal scenario if the center of mass gets behind the center of lift and you enter a flat spin. * Unlock steering and disable brakes on front gear. When dealing with high-speed landings, you may touch down too quickly and cause the front of the plane to smack into the runway. 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. Any ideas? Maybe ;making the tailwheel less stiff would help, too. I'm making sure that I keep trying to get it up but it just wont go! I was attaining high speeds on the runway without getting off the ground, which made the plane yaw back and forth. Also pay attention to your fuel balance, especially if you're using several tanks placed in parallel to each other. Slowly pitch up to avoid overheating. In an aircraft with two or more engines, this can potentially cause you to enter a flat spin which can be unrecoverable if your center of mass is behind your center of lift. The centre of mass was between the 2 landing gears. You can slow down either by deploying landing gears (and airbrakes if you have them) or by repeatedly pitching up and then back down to increase your drag. LV-N has less than 25% of its full power at Kerbin sea level. 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. 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). All lift-rating means is that the wing section will resist motion perpendicular to its plane. It provides a wider, more stable wheel base while keeping the wheels straight up and down (no camber). However, I want to place my wheels where i want to and not only on X parallel surfaces. Note that most air intakes tend to produce less drag than aerodynamic nose cones and pointy cockpits, especially shock cone intakes. They could go up to 120 m/s on the runway and still not lift up. Cookie Notice Having said all that, these are the issues you must contend with. 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. Hit the launch button and watch your magnificent bird fly! . A relatively low-drag alternative is to use an inverted cargo bay and some hydraulic cylinders with structural panels as a cargo elevator. 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). How to Fly a Plane - KSP Beginner's Tutorial - YouTube 0:00 / 25:53 How to Fly a Plane - KSP Beginner's Tutorial Mike Aben 30.6K subscribers 78K views 2 years ago KSP - Absolute Beginner's. Canards and horizontal tail fins should be placed as far towards the front and back of your aircraft as possible, respectively. These should be in the bottom left next to the display of the cost of the aircraft. 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! In subsequent missions, you may want to launch with less fuel to cut down on cost and make landing a quicker and easier process. Create an account to follow your favorite communities and start taking part in conversations. My first test of the plane parts in KSP2.Like and Subscribe for more Kerbal stuffs!#kerbalspaceprogram #ksp2 #kerbalspaceprogram2 #shorts #spaceplane #nasa Make sure that all of your landing gears are pointing in exactly the same direction. Need to move them up. 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). After that, you face the challenge of touching down on the ground and coming to a stop safely without rolling and breaking off a wing or taking a nosedive and blowing your aircraft up on touchdown, or rolling off of the runway and into the ocean. This thread is archived . All I have are the parts from the Aerodynamics tech and the gear bay (wheels). Check out the following guide for some good info: http://forum.kerbalspaceprogram.com/threads/52080-Basic-Aircraft-Design-Explained-Simply-With-Pictures Remember how you want your center of lift/drag to be behind the center of gravity? Suggest a Correction Copyright 2023 Nexstar Media Inc. All rights reserved. If you are using B9 Rocketery or other parts that utilize Firesplitter, this is normal. I have built lots of spaceplanes. 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. I scoured the entire web for a solution, but found no working solution or at least dont work every time. - Have enough lift, either by a big wing area or high speed. 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 dont really need 200m/s for take off. Increasing the number of intakes will not allow you to continue using your jet engines at higher altitudes. This is generally an issue of not spacing your landing gears out far enough apart. They all had to use the runway drop to take off. Congratulations! (Yes, you personally, you lucky thing! But I am still not sure if there are more reasons or perhaps it is just a physics bug which I am wasting my time on. This helps to keep the performance of your spaceplane stable with any amount of fuel. Even a small deviation can cause serious instability, making your aircraft bounce and jolt left and right even during takeoff. Some testing is usually required with new designs to determine the best ascent profile. Mechjeb Spaceplane Guidance. EDIT: It was the b9 procedural wings. As you reach 100m/s, hold S to pull the stick back, and you should be in the air! T-1 "Dart" engines are unique amongst conventionally-fuelled rocket engines: They have close to the highest efficiency in both vacuum and low atmosphere. The rudder is mostly used when landing and when attempting to line up a shot (in a fighter plane). Vice versa a plane with lots of control surfaces will be perfectly controllable (maybe even too much) but may have big difficulties with taking off and landing at reasonable speeds. My plane tends to wobble on the runway with the stock game so i decided to download FAR, but the problem still persists. 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. 1. make sure your main gear is not wobbling (ie. Install S5 moon rocket By lightbreaker_64. 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. Depending on which surface you place them on, they might not be parallel to the axis in which case. 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. Paste as plain text instead, @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. 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. If you've been able to successfully re-enter on previous low orbit test runs, you should be able to use this method to achieve similar rates of success once you've slowed down sufficiently. There are several forces in Kerbal Space Program which have an effect on the flight characteristics of SSTO craft. 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. 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. 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. 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). Clear editor. Lift maxes out at 30 and declines beyond that point, so avoid excessive fuselage tilt.[1]. mods used are OPT for most of the body and the front canards and tail plane, B9 procedural wings for the wings, and mk4 . 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. They could go up to 120 m/s on the runway and still not lift up. Any plane needs speed - so you need thrust (usually). ), 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". 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. Balanced fuel saves Kerbal lives. A FedEx cargo plane in Austin nearly landed on a runway where a Southwest flight was preparing to take off. Do you have a screenshot of the craft? Control surfaces are heavier than wings. 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! 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. 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).

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