But it should most definitely be in front of it, and preferably NEVER move behind it, even with empty fuel tanks. 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. Touch down, CUT throttle, CUT engines, BRAKES ON. Also stock fuel priority is in 1.2, allowing very stable CoM builds. 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. I've always found that best way to not crash on the take off is to take off. Cookie Notice Next you need landing gear. 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. Remember the, fuel flows from the front in KSP, so you might want to start off with the CoM in front of the CoL. do you put them vertically or are they at an angle to the ground? Sorry if this is just too basic, it is kind of for beginners, edit: [snipped the stupid thought] i need to stop trying to post when dead tired, I like rules of thumb like these All the info you need without getting bogged down with specifics, Just a quick FYI, you say that CoL is center of thrust and CoT is center of lift; these are the wrong way around. That would oscillate slowly between 16000m and 17000m but was otherwise fully controllable. First off, make whatever you want, just, start off making sense. I've spent some time scouring the internet for ways of solving this problem, and found a number of pieces of advice on preventing wobble and improving planes in general, some of which made it into the above list, but Valentina's still dying, and I'm tired of Kerbal funerals. If the CoM is in the back, then it will ALWAYS not be able to get out of a stall, flatspin all the time, and will be an all around horrible plane. May 19, 2013 in KSP1 Tutorials. 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. What are the arguments for/against anonymous authorship of the Gospels. It's unlikely you're doing this but just in case: while on the ground use only yaw controls to change direction, don't touch the roll controls. Unless you are using canards (not ideal for lots of reasons, IMHO), adding elevons will pull the CoL backwards since they also provide lift in their neutral position. Rockets are much less efficient than air-breathers, so it needs to be much bigger than a Kerbin-bound craft performing the same mission! This guide will show how to make simple-ish planes and other aerodynamic tips. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 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). You can "smooth" controls by toggling capslock on your keyboard, the control indicators in the bottom left will turn blue from orange and they are instance dependant (if you revert your flight you'll have to toggle capslock again). I actually like canard layouts, but I'm going to endorse this post because it's a simple, easy way to do it. As you reach 100m/s, hold S to pull the stick back, and you should be in the air! So thanks for the pointers - I'll take a look (and try to cure my prejudice re canards). Then at the top, we'll put one tail fin, centred on the end of the fuselage. Drive gently off the runway and use the huge grassy field to take off, without care in the world about the plane veering to a side. Also, excessive use of the rudder usually causes the plane to spin out of control and crash. Keep pitching up as you approach stall speed. How to force Unity Editor/TestRunner to run at full speed when in background? if that does not work, lower the spring strength until it works properly. And you would need to stay hours spectating the ship, because the game doesn't simulate atmospheric drag otherwise. Remember the, fuel flows from the front in KSP, so you might want to start off with the CoM in front of the CoL. (KSP 1.9.1) Subscribe - http://www.youtube.com/c/MikeAben?sub-confirmation=1 Patreon - https://. You arent doing anything wrong. This tutorial was created primarily based on a Reddit post by the incredibly helpful u/AnArgonianSpellsword. Set the thrust limiter on your main engines to zero. I've been having some trouble lately in newer with respect to air flow. Learn more about Stack Overflow the company, and our products. From my experience using a panther it starts to lose speed after 15-16 kms, a more suitable cruising height is 9-13km. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Hopefully this gets you your first aircraft that can take off and land, which is the biggest hurdle to being able to make KSP aircraft. You should talk about the rocket engine's dV (approx., since not all users use Mechjeb or any other mod capable of showing dV for a given engine and tank). The Cyclone uses Aerospikes for propulsion. Archived post. I moved the wheels from the tail to the fuel fuselage, and now she takes off like a dream! the front should be close to double the rear gears strength) And Good Guide! 2 will usually do nicely, but 3 or 4 are usually better (but of course heavier, and this tutorial assumes you use 2). Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI, Screenshot of the Week #89 [Submissions Closed, Vote Now!]. Your airspeed will also fall. Always look at your aircraft from a 90* angle on the side. One of the most finicky problems with VTOL craft is managing centre of mass. Flight records. That is something I am really looking forward to. Then go into the move part thing with the "2" key in the editor, remove the degree setting, and then drag them apart manually and position parts with fine tuning that way. Edit: After reading it again, it just seems to have a bit too many errors. Adding more engines without adding intakes will make the problem worse. Jets are good for a certain amount of static thrust but they don't allow quick control of your vertical speed because of their slow spool time. A Screenshot of Kerbal Space Program. These tend to handle . 3. 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. Privacy Policy. Your link has been automatically embedded. For what it's worth - watching 1.2 pre-release streams, the upcoming changes to SAS are profound. The main challenge for hover control is to keep the craft horizontal. Even though it just spawned. (Yes, you personally, you lucky thing! Before building planes though, there are some inportant things to know. The gear of the craft can also easily be overlooked, but can make the difference between flying masterpiece and soon-to-be-scraps. One point I would mention is that the more wing area you have relative to your control surfaces, the less angle of attack you can generate. How do I build a good stable basic plane? You will need more jets at the nose and tail than on the wingtips, as there will be more forces on pitch when transitioning to or from level flight. Eventually you either crash, or you reach a high enough speed that SAS wiggling can't cause a significant enough difference in engine speeds. Ill link it if interested. Privacy Policy. Intakes aren't something usually causing planes to fail, however need some thought. Just like with rockets, get some courageous Kerbal in the cockpit and let's get started! Two MacBook Pro with same model number (A1286) but different year. If it doesn't, he can just make the stabilizer bigger; instead of turning down control authority, just add more fixed wing. The CoL should be behind the CoM on a horizontal angle, unless you're building a shuttle. 2023 Take-Two Interactive Software, Inc. Yes! Aircraft are surprisingly difficult beasts to build and control, building a stable, flyable aircraft is surprising complicated, so this is the first of a num. What i do when i build a plane (except the tings others allready mentioned) is playing a lot with the Fuel sliders on fuel tanks in SPH and then moving the tanks and adding removing "balance mass" to the plane untill the COM doesnt move at all relatively to COL, no matter how much fuel i have with tanks. 2. The further along in plane-building experience and flying you go, the more designing them becomes more natural(and the more this guide becomes irrelevant :( ). Whether VTOL craft arepracticalor efficientcompared to other solutions is a different matter -- and to be perfectly honest, I'm inclined to think not really. Paste as plain text instead, Center of Mass - The average of all weight on the plane, this tool will show where gravity will pull . Then this tutorial is for you. These should be in the bottom left next to the display of the cost of the aircraft. The two engines have been mounted every imaginable way with the same result: Over the wings, on the fuselage, on girder segments, on the wingtips, etc. Making a fuselage. You may be correct and that 3 engine plane is a lemon. What Trump's very stable geniuses lack in intelligence they more than make up for in confidence. This makes one engine generate more thrust than the other, exacerbating the turn. Can't remember where I saw/read about it - Scott Manley maybe? To start off with, use ANY cockpit you want, this tutorial is going to teach you how to make anything using anything, as long as you follow these directions. If you have an account, sign in now to post with your account. Powered by Invision Community. (The spacing of COM and COL in your second picture is about right.) Set the thrust limiter on your main engines to zero. That should just about do it for basic planes. In vanilla KSP, wings have a predefined lift factor. Good, strong control authority - instead of reducing the pitch control authority, make the plane aerodynamically stable, so that even if you do flip it, it will right itself. However, don't put any fuel tanks on it yet, and empty any fuel-containing parts that you are using. Aim to get your speed below 50m/s, and have plenty of water ahead of you; keep the plane level, and pitch up to shed velocity. After the drag was sorted out, it wasn't very hard to create a dockable SSTO version. This item will only be visible in searches to you, your friends, and admins. Also, layout matters: aircraft with a wing that runs along the length of the craft, but with a narrow wingspan (like the Mk2 fuselages or wing strakes, and to a lesser extend swept or delta wings) will take more effort to pitch over but will roll very, very easily. How to keep an airplane stable on the runway in Kerbal Space Program? Also, I would like to know how I can tweak my aircraft to make them smooth at the controls. zombie2u, Control your vector primarily with pitch, and your descent rate with throttle. A V/STOL atmospheric craft built for Duna can drop you on any dime, anywhere on the surface. Stunt planes tend to go for the latter layout and use powerful ailerons, because getting more roll authority is easier than getting more pitch and causes much fewer knock-on effects. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. To land a VTOL aircraft, approach the landing zone as you would with a regular HTOL craft, until on final approach. We look at the principles behind designing a basic jet. You need enough intakes to keep them fed. The solution is to house the hoverjets in a cargo bay of some kind, with the doors opening downwards. This plane will be able to take off, travel somewhere, perform a crew report, and then land. So, if you're having this problem then. Some more advanced tips you can use in the guide: In stock (no FAR) game to have a stable plane its also important to place control surfaces behind the wings, since their lift increases faster with AoA. That is really weird. Getting all of this into one craft is a pretty intricate business, however. Here's how you go about building a VTOL under these constraints. I only very recently got into planes. It flames out at 25,000. It only takes a minute to sign up. Upload or insert images from URL. How do I make aircraft stable & smooth to control? Remembering the FW TA152 and the U2 I put long wings on it and while its turn rate makes an airliner look like a fighter plane it is stable enough at 19000m. This happens in two instances; initial placement and plane body deformation. Because they're fun and educational and you can. This is always my strategy for building planes (although sometimes things go horribly wrong for a different reason.) We're also not discussing helicopters here, because stock kerbals have not invented the propeller, and stock propellers are a whole big topic of their own. Any insights? With a decent lever arm to work with you can be both perfectly stable in level flight and very agile in pitch and yaw controls. there aren't any aerodynamics when you are a kraken scientist like me. This guide also applies to STOL (Short Take-Off and Landing) aircraft which do their thing using downward-pointing jets or rockets, because they're pretty much the same thing. Mount your rear wheels out on the wings for better stability. All rights reserved. (if the front gear is the same ditance from the CoM as the 2 rear gears. You need to sign in or create an account to do that. It can be as crazy or as normal as you want, just remember these basic tips, 1. principle. The buttons show you CoM (Center of Mass, The anvil button), CoL (Center of, Lift, the canard button), and finally CoT (Center of Thrust, the thruster button). 3. The cargo is near the centre of mass, but because it can shift, it's important to adjust the exact balance by tuning the power on the nose hoverjet At its core, a VTOL aircraft is a plain old aircraft, with downward-pointing jets that produce a TWR of > 1.0 with the vector centred on the craft's centre of mass, and some way of controlling its attitude when it is hovering, because control surfaces do nothing at an airspeed of zero. Paste as plain text instead, My first VTOL craft was the Bumblebee, and it's still one of my favourites! If it starts tipping in one direction, you're really likely to flip over and crash dramatically, like a tree falling over. What is Wario dropping at the end of Super Mario Land 2 and why? Put the big wings right at the back of the plane. @italian man Great guide, and for people who would like to know the basics of plane building i will be pointing them here. one last thing to verify: look from the side, observe where your center of mass is, then how the control surfaces are located relative to it and if the way they react to your controls makes sense (just try to pull up, down, or roll, on the runway without even starting the engine or disengaging brakes and watch which way the control surfaces move). So if you're getting those flame-outs, add more intakes until you don't get them anymore. Which reverse polarity protection is better and why? 2023 Take-Two Interactive Software, Inc. by fixing the suspension issues the need to sacrifice traction, and in turn, braking power, is not needed. New comments cannot be posted and votes cannot be cast. Level:Intermediate/Advanced:You need to be able to slap together a plane that flies reasonably well before attempting a VTOL.Background reading:Start with the fantastic Basic Aircraft Design tutorial in this very forum.Craft used to illustrate this tutorial: VTOL stands for "Vertical Take-Off and Landing." Plane body deformations can cause the wheels to touch the ground at a slightly different angle. Paint a picture in that little head of yours, imagine that the Mass was in the back, when you stall it, it will ALWAYS fall backwards and. 5. You can pick the main cockpit and rotate the whole craft with it in SPH to see where your CoL will drift. If his problem is the plane doing backflips at a touch of 's', I wouldn't go with 'slightly'. This item has been removed from the community because it violates Steam Community & Content Guidelines. Your main lift, though, should always be as closely centered on your CoM as you can manage. Your very own tutorial.). No, the intakes don't have to be vertical. For more information, please see our You want those tires facing straight to the ground! Just sounds like the engines can't get enough air, in KSP high speed also generates air intake so I'm guessing what is happening is that you have the initial speed to get to altitude but the lack of air at altitude is starving the engine resulting in lower speed which further reduces air intake and it cascades until either the engine shuts down or you return to denser atmosphere at a lower altitude. As such, you will need various control surfaces. So you want to make a plane but all your contraptions explode on the runway, crash into the runway a few seconds after taking off, crash into the side of the runway, crash into the ocean after doing a tight turn or otherwise fail to do what you intended? Build yourself a plane. The best answers are voted up and rise to the top, Not the answer you're looking for? Love it!! You may need to change control authority to a negative value if they bend "the wrong way". That way you can tuck them away for normal flight, and expose them for hovering. 2. Start with simplest, easiest planes you can and then increase complexity observing and mitigating problems as they arise. Or about the same speed but 1000 m higher. Interesting design!! The fastest known plane demonstrated, in version 0.23, a top speed of about 2377 m/s relative to Kerbin's surface just short of Mach 7. I have not had much success usingonly horizontally oriented intakes - the engines do not have sufficient air flow to generate enough thrust to actually lift the craft. Connect and share knowledge within a single location that is structured and easy to search. (KSP 1.9.1) Subscribe - http://www.youtube.com/c/MikeAben?sub-confirmation=1 Patreon - https://www.patreon.com/MikeAbenPatreon supporters receive early, ad-free, access to videos, kOS and craft files, and more. Absolute Beginner's Playlist - https://www.youtube.com/playlist?list=PLB3Ia8aQsDKgGHrNZnz2ca8NVuyj7eHXc Craft File - https://drive.google.com/file/d/1cfFBMm4EBhDh8mQ2UuOn9f5DL6jBgM05/view?usp=drivesdk0:00 - Introduction1:42 - Planning our Science Collection3:36 - Starting our Build4:49 - Changing Symmetry Mode6:40 - Adding Fuel8:07 - Adding Jet Engines \u0026 Air Intakes9:10 - Adding Wings \u0026 Elevons10:55 - Adding a Tail12:03 - Understanding Center of Lift16:24 - Understanding Control Surfaces18:31 - Adding Landing Gear22:25 - Summary i dont know what kind of range youre looking for but i would make a significantly smaller plane. Thank you and happy landings. Simply changing the intakes made it fly completely out of control and impossible to land. Good, strong control authority - instead of reducing the pitch control authority, make the plane aerodynamically stable, so that even if you do flip it, it will right itself. hope you and others find that useful in the future! My question is really about controllability. and our and adust the springs according to how much weight thier carrying. Building planes is one of the more fun things to do in Kerbal Space Program, and also leads to more science on kerbin and eventually SSTO spaceplanes. +1 for "If that all fails, you may try building your plane lighter and with mightier (or just more) engines, so it just doesn't have the time to start misbehaving on the runway before you bring it up in the air." By Set up your control scheme: one action group for toggling the hover jets, another action group for toggling the main jets, plus yet another one to toggle the hover jet bays, if you're using them (as you should). Do you have a picture? and i usually find having my dampening a little lower then the spring strength keeps the wheels from "biting". Air-breathing hoverjetsneedintakes. Reddit and its partners use cookies and similar technologies to provide you with a better experience. It's a flatbed freighter suitable for shuttling base modules to and from the surface. Haha I think Ive perfected an aestheticallyclean turbine jet VTOL USAF F-35b Lightning II2020 https://imgur.com/gallery/918HyM4 https://imgur.com/gallery/f0NDJxR. But mostly, the answer is still "because they're fun and educational and you can.". There's no tutorial in KSP that explains plane design to you and this guide could have taken the lead on that. If that all fails, you may try building your plane lighter and with mightier (or just more) engines, so it just doesn't have the time to start misbehaving on the runway before you bring it up in the air. Nah, the stabilizer will do it. @gokcet @DANKTER I usually run my front wheel override friction on 0.3 when the front gear has steering disabled, it needs lower friction. Take the large delta wings and place them on the aircraft. You do need rather a lot of them. Usually, having one or two medium-sized intakes will more than suffice on a regular plane. Ill edit this sometime this week. Powered by Invision Community. The CoT (Center of Thrust) is purple. Kerbal Space Program, how do you disable autosave? The Kerbal Space Program subreddit. Note the landing area markers. A twin-pod design is similar to a twin-boom, except that it has a conventional tail extending from the fuselage. You are simply running out of atmosphere (i.e. The parts regarding landing gear placement is especially relevant in 1.1.x. Whiplash is the engine you would want to use on a plane meant to go 20km. Arqade is a question and answer site for passionate videogamers on all platforms. My Hats off to Brikoleur, as a fellow VTOL/general spaceplane [stock] enthusiast, your tips were easy to read and right on the money!
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