Either one of those being misaligned will cause instability on the runway during takeoff (and the engines misaligned will cause flight problems). Or maybe launching it in a vertical, Space Shuttle-style config. 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. This page was last edited on 19 February 2020, at 07:08. It helps to have a center of gravity which is close to your engines so that the landing gears can be close to both. After externsive testing and bloodpressure rise, results: it doesnt matter where you place the wheels, as long as they are not angled on the X (nose-tail) axis. LV-N exceeds 75% of its full power at just 7700m altitude on Kerbin. 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. This aircraft can takeoff at just above 50 m/s and can glide for a few minutes without engine. 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. This tutorial was created primarily based on a Reddit post by the incredibly helpful u/AnArgonianSpellsword. I started investigating why this was happening. I have no problems using Mechjeb to launch rockets into orbit, rendezvousing and docking with other craft. 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. KSP v.22 Takeoff Troubleshooting Guide/Tutorial Lots of info to help get your plane off the runway! If you keep all of the fuel in the front, you may find that your center of mass drifts backwards as your fuel drains. Hello, I am having a small problem with a plane I have built. 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? 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). Need to move them up. 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? (Source). 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. 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. Your aircraft might just be too heavy - there might not be enough wing lift for it to take off the ground. They are able to operate at higher altitudes and can even continue operating in a vacuum by switching to a rocket mode. my center of lift is always slightly infront of my mass. You can post now and register later. 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. For all your gaming related, space exploration needs. T-1 "Dart" engines are unique amongst conventionally-fuelled rocket engines: They have close to the highest efficiency in both vacuum and low atmosphere. KSP Stock Space Shuttle by _ForgeUser18393701. 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. For this to happen, I'm assuming you're using rocket fuel tanks. 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! If you are using B9 Rocketery or other parts that utilize Firesplitter, this is normal. Is there a way to rectify this problem. Thermal turbulence, caused by convection, happens below clouds and typically only impacts planes during takeoff and landing. 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. This page was last edited on 17 December 2021, at 13:14. This makes design easier, eliminating all concern for balancing jet fuel against rocket fuel. 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. However it's huge size can make it tricky to take off from the runway without destroying the engine. You can even try refueling it before recovering your spaceplane further increasing your recovering value. . Some testing is usually required with new designs to determine the best ascent profile. Lift maxes out at 30 and declines beyond that point, so avoid excessive fuselage tilt.[1]. Mods needed for this aircraft to work: Procedural wings, Adjustable Landing Gear, FAR. You can post now and register later. Do you have a screenshot of the craft? My plane tends to wobble on the runway with the stock game so i decided to download FAR, but the problem still persists. These should be in the bottom left next to the display of the cost of the aircraft. I was wrong. This is most likely the standard jitterbugging problem. Set up for a long glide path, and watch rate of climb indicator at top of screen, aim for -5 m/s. Although I usually only need 50 m/s for most planes to wobble out of control. In vanilla KSP, wings have a predefined lift factor. 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. All trademarks are property of their respective owners in the US and other countries. For more information, please see our Second try, speed over land reached over 210 m/s and it didn't flip. When your spaceplane rolls shortly after touchdown, veers to one side and then explodes on the runway, you have a problem with landing stability. I checked my planes and I found the problem. Upload or insert images from URL. * Unlock steering and disable brakes on front gear. Notice how the landing gears are placed out on the wings. 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. All of these problems can be exacerbated or reduced by adjusting the amount of fuel in your tanks during landing. The issue is my plane rolls very sharply to the left any time I pitch up. You cannot paste images directly. Also, excessive use of the rudder usually causes the plane to spin out of control and crash. However, I want to place my wheels where i want to and not only on X parallel surfaces. Slowly pitch up to avoid overheating. here are some images and a gif. Nothing bad will happen. 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. Subscribe! Note that no wings will tolerate more than 2400K, so the difference in temperature tolerance between Mk2 and Mk3 fuselages isn't terribly significant. In subsequent missions, you may want to launch with less fuel to cut down on cost and make landing a quicker and easier process. Bit late i know, but i had the same problem. 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. Valve Corporation. Clear editor. Having said all that, these are the issues you must contend with. 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). 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. All the weight is pushed on the middle and it can't pull up. Clear editor. Thanks for everyone trying to help! Works well on small craft. Just after having taken off, the plane will immediately start rolling to the right, and completely uncontrollably. If you placed the main wings at the centre of mass and then added the smaller wings behind, this should be correct already. This ensures that your aircraft will go up once it achieves a high enough speed, and also helps with placing ailerons. For an example, see the A-10 Warthog's landing gears: link. An aircraft without control surfaces is like a rocket without RCS or reaction wheels - it will hardly turn and will be equally hard to control (perhaps even impossible!). 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. When flying straight the plane is pretty stable but pitching up causes a sharp roll and I cant figure out why. It's said that takeoffs are optional but landings are mandatory. 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. Your previous content has been restored. If that's not an option, you can still recover some value by landing at any suitable flat place on Kerbin. A Ravenspear Mk3 taking off from the Runway in version 1.0.5. You may also want to deploy your landing gears to increase your drag, as well as airbrakes if you have them. 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. 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 Any plane needs speed - so you need thrust (usually). This can easily cause you to crash on landing. 2022 Take-Two Interactive Software, Inc. 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. It's strongly recommended to keep your landing gears well-spaced from each other to ensure that the aircraft will be difficult to roll into a collision. Similar principles apply when finding suitable landing sites away from the KSC. Unfortunately, with only these basic parts, landing on the runway won't be easy; a viable alternative is to throttle down to nothing, then belly-flop in the ocean. Make sure that all of your landing gears are pointing in exactly the same direction. Upload or insert images from URL. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Any ideas? To minimize the risk of such a situation, try to land on a large patch of flat open ground approaching a downhill slope. https://forum.kerbalspaceprogram.com/index.php?/topic/124380-wing-lift-amp-wing-lift-to-drag-ratio-charts/, https://wiki.kerbalspaceprogram.com/index.php?title=Tutorial:_Spaceplane_basics&oldid=100619. https://wiki.kerbalspaceprogram.com/index.php?title=Tutorial:_Your_First_Plane&oldid=103052. My Space Plane Keeps Flipping Backwards On The Runway. That, combined with a Unity joint bug, makes your plane bounce. 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. Plane spins/lurches to the side during takeoff? When I use it for spaceplane guidance it keeps me on the correct heading, but the flight is very busy sine wave of a path. Controllability of a plane is on you. Before you can make a successful plane, you must understand what makes a plane go in places other than the ground - the wings. A relatively low-drag alternative is to use an inverted cargo bay and some hydraulic cylinders with structural panels as a cargo elevator. - KSP - YouTube 0:00 / 31:25 Flying a Space Station through a GAS GIANT! This helped immensely and if you haven't been doing this already, do it. 1. make sure your main gear is not wobbling (ie. An altitude set to 18,000 meters tops off at 19,000 meters and drops to 15,700 meters . All of them had one thing in common though. 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. Try disabling friction control with on the front landing gears. Keep your nose pointed prograde as you descend through the atmosphere. 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. Thanks for all the help. 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. 1. make sure your main gear is not wobbling (ie. 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. It is due to the spinning up of the engines. #2 DaSkippa Mar 14, 2014 @ 2:56am as Shkeec said check gear check gear check gear. Unstable Aircraft: "FAR Firehound" (Stock). So I have played the game for 200 hours and I love it. Place your rear wheels/gear in front of the flaps on your wings. I've had stability issues in planes where I'd have proper gear setup, balanced weight and lift. Because of how small Kerbin is and how high its gravity is, a perfectly flat surface just north of the equator will cause planes taking off to bias to the right of the runway, as if they were rolling downhill. This helps to keep the performance of your spaceplane stable with any amount of fuel. This thread is quite old. Display as a link instead, As long as you're in space, your spaceplane won't differ from any spacecraft: you will probably want to add batteries and generators to prevent the command pod from running out of power. 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). 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). Note: Some high-efficiency rocket engines lose most of their power and efficiency in low atmosphere. I made this aircraft based on real life commercial jet design. 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. Also avoid the basic fin for the same reason. http://www.youtube.com/user/Cruzanak?. See if there is still a problem when only travelling slowly, say <20m/s. It is also said that a good landing is one you can walk away from. 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. So the answer is: in the SPH, click on your front gear, set the spring to .5 and set the damper to .5 -- then save it and give it another shot at launching. I have created planes that have landing gears place right under the wing tips but they still won't work. To do this, take a few barrels of your jet fuel, stick them on the back of your aircraft. My first test of the plane parts in KSP2.Like and Subscribe for more Kerbal stuffs!#kerbalspaceprogram #ksp2 #kerbalspaceprogram2 #shorts #spaceplane #nasa Real planes do this as well. Tell ya what, I'm gonna try to recreate that thing in my sandbox and see what I get. However, it's not a matter of "atmosphere or not", just a matter of air pressure which decreases rapidly with altitude. Consequently, atmospheric reentry is less dangerous with a Mk2 or Mk3 fuselage, compared to reentry with Mk1 fuselages. Quick context, I am a software engineer. Firstly you're going to want to make a short fuselage. I have built lots of spaceplanes. 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 . All trademarks are property of their respective owners in the US and other countries. 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. All I have are the parts from the Aerodynamics tech and the gear bay (wheels). 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. For example, having your landing gears located near the ends of the wings is an easy way to ensure that you don't roll and shred your wings when landing or taking off. 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. DO NOT ANGLE THEM! . 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. 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. Press question mark to learn the rest of the keyboard shortcuts. Control surfaces are heavier than wings. Everything looks perfectly symmetrical as far as I can tell. 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. mods used are OPT for most of the body and the front canards and tail plane, B9 procedural wings for the wings, and mk4 .