How to make a loop for linear actuator in Kerbal Space Program, Breaking Ground. (the engines will use very little at high altitude anyway). Sideslip handling. 2022 Take-Two Interactive Software, Inc. I don't have that other stuff yet. probably the easiest place to land in the system as terminal velocity is survivable for a craft less kerman. Kerbin | Kerbal Space Program Wiki | Fandom Using Kolmogorov complexity to measure difficulty of problems? So that means that even if you are inside the atmosphere but still orbital (such as during aerobraking), your science will not count as "Inside the atmosphere", For example, orbiting Kerbin above 250km altitude, your science is counted as "In Space High over Kerbin." This makes jets built using this engine considerably more maneuverable. There are two factors to that: how thick the air is, how fast the ship is going. Privacy Policy. Please consider starting a new thread rather than reviving this one. The thrust of jets (turbo or otherwise) depends on airspeed: basics deliver more thrust at low speeds, while turbojets only really come into their own when you fly very fast (which also means flying very high, 20km and over). This works, but it's not optimal. That will unlock: That's because wings need to have some AoA to the airstream in order to generate much lift. The Rapier, for example, works great as a high-altitude engine, precisely because it can go so fast. Then I increase throttle until about 2/3 or even full, climbing with a high inclination (it can also go straight up). 4. Planes in Space - The Kerbal Player's Guide [Book] You can spin around the whole world on just fumes. I followed a similar strategy. New comments cannot be posted and votes cannot be cast. So I've created those two planes, both with weasley turbofan engine: This is your problem-- as folks have pointed out, it's not a high-altitude engine. You'll notice that usually your prograde marker is slightly below your pitch. What are the minimum altitudes for each warp level? Since gravity is effectively lower, they don't need as much wing area to maintain altitude-- which, in turn, means less drag, which makes for more efficient flight. Incidentally, for these speeds and altitudes, ordinary jets are the better choice. This means that the only thing that decides wheter your engines run efficient is determined by how much thrust they produce (opt. Most SSTO space planes would be able to accomplish this easily. 1 Pod outside the level 3 VAB. Air temperatures vary with latitude and time of day. There's basically three ways to do that: lifting surfaces, thrust, and orbiting. with a thrust vectoring range of only 3 degrees. In the main KSP settings menu you should set the default throttle to 1.0 (technically the above mechjeb setting winds up restoring the default throttle, so it needs to be 1.0) In the attitude adjustment menu make sure you are using the "better controller" Whack the 45 degree phase margin button Whack the restore all other defaults button (Actually, four ways: but balloons aren't in the stock game) Lifting surfaces are great but they lose effectiveness just as fast with altitude as drag falls. ksp high altitude plane - digitalidentityorganization.com Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Create an account to follow your favorite communities and start taking part in conversations. Fighting oscillations. How do i build a high altitude plane? : r/KerbalSpaceProgram - reddit Check out the website and try the game out for yourself :Dhttps://kerbalspaceprogram.com/ Press question mark to learn the rest of the keyboard shortcuts. Air Flow + max. Display as a link instead, Using very light "engine rich" planes and "reverse swooping" (building velocity at 10km then gently curving up) you can temporarily get above 20km with Wheesely and Juno. When added to a plane it allows tuning of the controls vs speed/altitude/G load/other factors. Once you're at that regime, you should be able to cover huge distances on tiny amounts of fuel. Not only does it conk out at high altitudes, but also it conks out at high speeds, and you need to be able to go fast to fly up high. i dont know what kind of range youre looking for but i would make a significantly smaller plane. as a rule of thumb they all lose thrust at higher altitudes and at high velocities. Plane - Kerbal Space Program Wiki In my case, it brought me to 20km up at a 45-degree angle, but it is probably not optimal. Contents 1 Usage 2 Construction 3 Categories 3.1 Airplane 3.2 Seaplane 3.3 Spaceplane 3.4 VTOL 3.5 Glider 3.6 Mothership 4 Operation 4.1 Flight records 5 Notes Usage Grichmann's answer has been the most reliable way I've found to complete these missions. This way control surface max deflection can be programmed by an aircraft designer to make . This tutorial will cover designing and flying a plane that can soar at high altitudes! High altitude planes - Kerbal Space Program Forums TLDR: You need parts you don't have to make a plane that flies that high. 3x06: I design a new, high altitude, jet to collect high atmospheric science. The U-2 is probably the highest altitude aircraft still flying. The X-37 is operated by the United States Space Force for orbital spaceflight missions intended to demonstrate reusable space technologies. 3.) Tutorial: Making the AI fly | BDArmory Wikia | Fandom - Inside the atmosphere works the same way, except you need to be on an suborbital trajectory. To avoid running out of fuel altogether, I have a second plane with small tanks (no oxidizer) attached directly to the jet engines, and the rockets attached behind the fuselage, which is entirely oxidized tanks. For all your gaming related, space exploration needs. Grichman's answer got me in the right direction. By climbing, you reduce drag, exponentially with altitude. You do get certain inertial and lever-arm effects, but those aren't really relevant to 'do I have enough lift to stay up'. Why do small African island nations perform better than African continental nations, considering democracy and human development? Is anywhere a list of the altitude levels (I don't know a better term) available? The other thing to bear in mind is that tuning the AoA (angle of attack) of your wings makes a difference. Download (104.45 MiB) License: CC BY-NC-SA 4.0 Game Version: 1.8.1 Downloads: 371,115 Author: blackheart612 Mod Website: Forum Thread Support this mod: Donate Followers: 626 Outdated Mod This mod is not known to work with the latest version of Kerbal Space Program. Don't be too surprised if KSP's aero model breaks down in edge cases. Pasted as rich text. Designing a High Altitude Jet | KSP: Making Space Home AoA built into the wing relative to the plane body is called the angle of incidence, just to help clear up. I was even able to do this with three pairs of Junos instead of the large jet engine pair (I don't have the technology level for that). You may be correct and that 3 engine plane is a lemon. EDIT: Didn't notice you were using FAR. For more information, please see our Your previous content has been restored. If not, please explain why, which I know you have no problem doing! 600+ m/s) and low altitudes (e.g. My plane has turbojets and lots of fuel, but I am wondering what the optimal way to fly is. Early career high altitude observations question : r/KerbalAcademy By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Things that work at low altitude don't work so well up high and the plane ends up going up and down while slowly losing speed until it can't maintain altitude anymore. Once it's in the air, it's stable and easy to fly and manages to fly at altitudes between 11k 12k without problems. Yes. Press question mark to learn the rest of the keyboard shortcuts. That would argue for going as high as possible, as slow as possible, but apart from drag you also have to fight gravity. One problem is i'm running stock on career mode and only have 30 part to spare, so large planes are out of the question. This is my current best hi alt plane. - Spamming airintakes didn't help. Is it possible to get to an altitude of 16-20km with normal plane engines? As long a you can fly faster, the lower density at altitude can be compensated for. It has two modes: The first, Dry mode, is similar to that of the J-33 "Wheesley" Basic Jet Engine, with a bit more thrust. As I understand, the OP wanted "the most efficient way to fly", and simply needed a bit of help in realizing that that is a hypersonic, high-altitude, high-performance aircraft which is a RAPIER and a little oxidizer away from being an SSTO spaceplane. Orbiting is the most fun one: the higher the orbit, the less speed you need to maintain to stay in orbit, *and* the less air there is, so that's a double-whammy in terms of reducing fuel consumption. The high performance engine for me performs pretty good till about 15000 meter. The drag differential is because your long-wing layout is using a bunch of struts, and the reason your delta-wing has a higher ceiling is because it has more wing area to provide lift. Pvt. I recommend using a solid rocket booster (or 2 or 5) to you get you the altitude and then launch a small rocket powered plane. Technically, any rocket engine is also a jet engine as it forms a high-speed jet of reaction mass. Thanks, I'll go try to stuff a few extra turbojets and intakes on my plane Do you know how many intakes/turbojet are needed to run in the regime you described? Ep. Right now, my big, fat plane has trouble breaking 10 km altitude and 200 m/s forward speed (largely due to its payload). Air Intake) and how fast your aircraft ultimately flies (air resistance/altitude)! Use the reaction wheel to hold your attitude slightly nose down as you float down and you can guide yourself like a paraglider. I looked into the .cfg files and there are no special properties allocated to them. I generally don't fuss with AoI unless I'm making a long range cruiser. . How to tell which packages are held back due to phased updates. Once you're at that regime, you should be able to cover huge distances on tiny amounts of fuel. With the tanks disconnected that way, the rockets don't leach from the jets. Press J to jump to the feed. principle. Evidence. Thrust means that slower-is-better no longer applies: now, slower means less drag but more gravity, so there's a tradeoff (which I'm not going to carefully calculate for you, because it's hard). And how many km can I expect to get per v (as calculated by Engineer redux Kerbin atmospheric stats, I know this is weird with planes)? For comparison, the second most maneuverable engine is the CR-7 R.A.P.I.E.R. The Rapier, for example, works great as a high-altitude engine, precisely because it can go so fast. Powered by Invision Community. It is usually best for initial designs to be based on logic and real-world physics and then be prepared to experiment with non-logical alternatives for optimisation. : : . A destructible memorial to the old Mk. - Insane lift to weight didn't help. Air Intake: Air Intake shows the amount of force your engine uses to suck air into the turbine. Kerbal Space Program 2 . Does a plane consume more fuel if it flies at higher altitudes? How can this new ban on drag possibly be considered constitutional? 2022 Take-Two Interactive Software, Inc. The longest flight got them down to a little more than half full. What am I doing wrong here in the PlotLegends specification. If the wings are flat and your plane steadily loses altitude in level flight at a given speed (as most designs will by default), it means you either need to pitch up slightly, increasing the angle of attack and keeping your vertical velocity at 0 by flying up slightly to compensate for the pull of gravity that lift isn't compensating for. This can be done with moar boosters or more calculated wing and body design, depending on the aero model you use. Now I have a plane that will fly around the world at an altitude of the low-20s. GitHub - Boris-Barboris/AtmosphereAutopilot: Plugin for Kerbal Space At altitude the nose goes up and down until it goes out of control. The most efficient way is, of course, to make a high altitude (or space) plane. The most obvious solution is try and optimize your craft for high altitude lift by giving it long wingspan like a U-2 spyplane. KSP also tends to have very harsh induced drag if angle of attack gets too high. Very cool. It is stable but can not maintain altitude. Do plugins for Kerbal Space Program work on unix? Clear editor. Satellite Launcher - Kerbal Space Program Wiki I don't have any exact numbers for you, but you can right-click an engine in flight and it will show both current and optimal airflow, which should hopefully let you work out the best altitude. Though I'm still working on learning to be better at space planes. If you have an account, sign in now to post with your account. Strictly speaking this optimisation is unnecessary, but it can win you a bit of range. A well-designed jet with this engine and with the afterburner lit, flown properly, can momentarily climb to 30,000 m altitude. Watch out for your SAS if you're running batteries without a jet for a long time. But a rockets can do it. 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. You get tons of thrust if you put it into "wet" mode, but you lose fuel efficiency. The easiest "default" way to build a plane in KSP-- i.e. The SR-71 could probably fly higher, but it isn't flying any more. Ksp engine altitudes : r/KerbalSpaceProgram - reddit Paste as plain text instead, Ideally, you'll want to avoid these contracts until you get the High-Altitude Flight tech node and the improved jet engine that comes with it. 1Altitude requirement 2Orbit 3Speed, range, and altitude 4Flight duration 5Flight profiles 5.1Ballistic missiles 5.2Tourist flights 5.3Scientific experiments 5.4Sub-orbital transportation 6Notable uncrewed sub-orbital spaceflights 7Crewed sub-orbital spaceflights 8Future of crewed sub-orbital spaceflight 9See also 10References These designs are great for getting around Kerbin quickly, but without going orbital. So if you want to make a plane go as fast as possible, you want to minimise both angle of attack and angle of incidence necessary to sustain level flight at your target speed and altitude. . If drag were the only concern, at any given altitude the slower you go, the less fuel you need: the work done by drag over a distance grows linearly with speed (the force grows quadratically with speed, but the time falls linearly). Valve Corporation. alternatively, combine a liquid fuel rocket into your plane. its rather flat but its a solid surface. Since turbos are almost always enough to get you off the ground and up to altitude, I usually just do straight turbojets (with some RAPIERs for SSTO spaceplanes); the minute amount of fuel saved during the ascent isn't worth lugging those superfluous engines around at the hypersonic regime. Powered by Invision Community. If released at a speed of 700 or more m/s and an altitude of 20 or more km, the satellite will achieve orbit with its second stage mostly full, leaving it with approximately 1600 m/s of delta-V -- enough to achieve lunar or interplanetary orbits and, on small bodies, landings. Learn more about Stack Overflow the company, and our products. The benefits should be obvious. Note that KSP planes get one substantial speed benefit that's much more pronounced than IRL aircraft, due to the freakishly small planet sizes: they're actually flying at a large fraction of orbital velocity. Even better, burn a little more, and you can pop out of the atmosphere for a bit and avoid all that nasty drag stuff. A temple in the desert (6 29 47 S 141 40 3 W) known as Tut-Un Jeb-Ahn, although this name can only be seen when a vessel crashes into it. Unfortunately I won't be able to test it today, but @SaintWacko's proposal sounds promising. 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. Most efficient cruise altitude for jet planes? : r/KerbalSpaceProgram It's Kerbal Space Program v.22! Dedicated to the growth and advancement of amateur rocket scientists! List of altitude levels? - Forums - Kerbal Space Program Forums Your answer got me in the right direction, though I ended up with a different design (see my own answer). Upload or insert images from URL. But you'll need to unlock: High Altitude Flight Which cost 300 science. Because when your engine has to take in air forcefully it automatically means there isn't enough surrounding your engine and that again means that air density and therefor air resistance must be pretty low too. There are no requirements as far as size or power are concerned, as the AI Pilot is capable of flying pretty much anything - from tiny scout planes to oversized freight craft. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. Really. Don't rely on the efficiency indicator! This is particularly useful for pairs of engines, since this makes it possible to keep the thrust equal when activating the afterburners. Under some circumstances, you may want to reduce the engine gimbal range or disable it altogether, particularly when flying at high speeds (e.g. Rationale: If that's all a case of Too Many Words, think of it this way: Suppose you just build a plane the "default" way and don't put any AoA at all on the wings. Chapter 4. KSP Career: Episode 13 - High Altitude Surveys - YouTube That annoys me but I can't seem to get a design to make it work. Another problem is jet engines stealing fuel from the rockets' tanks - you may want to pump the fuel manually (requires an R&D centre upgrade) or add some pipes between them. Building a rocket to fly vertical seems to be nearly impossible, in the atmosphere they tend to become unstable (or maybe I missed a trick?). 1 1: The basics 2 2: Setting it up 3 3: First flight 4 4: Finishing touches 1: The basics First of all, you're going to need an airplane. Steam Workshop::damn wow The flight time won't be as long, but you'll be able to fly a "plane" above 18km. Or is it the same for all celestial bodies? Is it suspicious or odd to stand by the gate of a GA airport watching the planes? CONTROLABLE plane for ~20km altitude? :: Kerbal Space Program General If it's above the cross-hairs, you need a little less. From my experience using a panther it starts to lose speed after 15-16 kms, a more suitable cruising height is 9-13km. Any of my search term words; All of my search term words; Find results in. Best altitude to fly a plane? - Kerbal Space Program - GameFAQs Let me share what I know about jet engines, speed, and efficiency. Unfortunately, most space plane designs are impossible (or at the very least impractical) at your current tech level. Anyway thanks in advance. If it's above the cross-hairs, you need a little less. Basically you just need to fiddle with it and try some test flights. At 3500m, you have half the drag you'd have at the surface; at 7km, 1/4 the drag, at 10.5km, 1/8 the drag, etc. Did any DOS compatibility layers exist for any UNIX-like systems before DOS started to become outmoded? Immediately starting rocket engines at full throttle turned out to make most of my aircrafts totally unstable, turning them up gradually worked way better. EDIT: Essentially, make like an SR-71, if an SR-71 didn't have cooling problems limiting it to Mach 3.4. If it's below the cross-hairs, you need a little more AoA. 1.) Maneuver node plans don't take drag into account, so you'll have to overshoot quite a bit to compensate. You are simply running out of atmosphere (i.e. The returns are diminishing so eventually you will hit a ceiling. Thanks for asking this, I've been struggling with the same problem in career mode. 2022 Take-Two Interactive Software, Inc. Make sure we're on the same page with terminology. Will post my results. - but they were talking about having two intakes/engine.