The more successful the flights, the more successful the space program is. Let me share what I know about jet engines, speed, and efficiency. I looked into the .cfg files and there are no special properties allocated to them. - "In Space High" means your craft is inside the given Sphere of Influence and above the "Space Border" altitude listed in the Celestial Body Multiplier Matrix. A well-designed jet with this engine and with the afterburner lit, flown properly, can momentarily climb to 30,000 m altitude. More air is better. You are just about at maximum speed and at the same time very close to stall speed. EDIT: Didn't notice you were using FAR. Did any DOS compatibility layers exist for any UNIX-like systems before DOS started to become outmoded? You can go above 20km with the J-404 Panther. 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). If you upgrade to the panther (or get one on a contract) that engine can get you much higher. I should perhaps start trying out NEAR to get ready of 0.90, though. To get there, you're going to want to climb at the fastest rate you can manage to 18-20 km, at which point you should mostly level off and start accelerating horizontally. It'll probably be more efficient with more intakes, but I wouldn't increase the number of engines. Additionally please know that .16 will feature new code that will change the way space planes work in every aspect. I only seem to be able to make planes that can fly a bit below that altitude and then temporary rise to it. All trademarks are property of their respective owners in the US and other countries. 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. Let me. I have enough patience to do the slow flying, but is it horribly inefficient? I did some testing and found that the turbojets get the best Isp around 5.2 km altitude, so I was thinking of flying at that altitude. Press question mark to learn the rest of the keyboard shortcuts. This way control surface max deflection can be programmed by an aircraft designer to make . Or it can supercruise at three times the speed of an equivalent Wheesley jet (with nearly equal fuel efficiency) at 15,000 m altitude. You can spin around the whole world on just fumes. i dont know what kind of range youre looking for but i would make a significantly smaller plane. The X-37 is operated by the United States Space Force for orbital spaceflight missions intended to demonstrate reusable space technologies. 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 Pasted as rich text. The Inland Kerbal Space Center itself, being in effect the old Kerbal Space Center from 0.2. even stranger is that the surface is textured. List of altitude levels? - Forums - Kerbal Space Program Forums Then I increase throttle until about 2/3 or even full, climbing with a high inclination (it can also go straight up). Also, while you mentioned the TJs most efficient altitude is ~ 5km (I'm not sure, but lets assume it's true), you need to realize that the drag you're getting at that altitude is going to wreck any efficiency gains. 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. Press J to jump to the feed. Don't rely on the efficiency indicator! The returns are diminishing so eventually you will hit a ceiling. You also need to be going very fast to generate adequate lift at high altitudes and unlike the real U-2, you don't need to fear about overspeeding and destroying the plane. A destructible memorial to the old Mk. as a rule of thumb they all lose thrust at higher altitudes and at high velocities. Planes and Altitude differences. :: Kerbal Space Program General The J-404 "Panther" Afterburning Turbofan is a jet engine added in version 1.0.5. Display as a link instead, 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. However, it seems as if your delta wing has has more area, might that be it? : : . 2022 Take-Two Interactive Software, Inc. 600+ m/s) and low altitudes (e.g. 1.) How can this new ban on drag possibly be considered constitutional? - but they were talking about having two intakes/engine. Only the fuel tanks attached to rockets have any oxidiser in them. 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. Unfortunately, there's no simple rule to tell you what the angle needs to be when you're building the plane-- it depends on lots of variables, such as your weight, drag, intended cruising altitude, intended cruising speed. GitHub - Boris-Barboris/AtmosphereAutopilot: Plugin for Kerbal Space . This thread is quite old. Fighting oscillations. At the equator, sea level temperatures vary between a nighttime low of 9 C and a daytime high of 15 C. I currently have a contract where I'm asked to take crew reports at certain spots on Kerbal at an altitude of 18,000m. 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. The most efficient way is, of course, to make a high altitude (or space) plane. What am I doing wrong here in the PlotLegends specification. Chapter 4. The main body is a fuel tank with a Swivel engine at the end. The Panther engine can hold 19,000 steady and oscillates around 20,000. A little while back I spent a long time trying to circumnavigate Kerbin on the least liquid fuel possible (i posted the record to the sub: 254 units of fuel. CONTROLABLE plane for ~20km altitude? :: Kerbal Space Program General Now lets combine these two indicators: The best performance your engine can achieve is when you have an optimal amount of Air Flow (obviously) but also the MAXIMUM amount of Air Intake. Listen to this guy, don't go much farther above 15000 with high altitude engines. If too much air runs into the turbine, the excessive amount just flows out unused through side-vents (I think). Here's my example of dealing with the situation. Build a plane or rocket for Kerbal high altitudes - Arqade TroubleshootingMechJebPVG - KSP-RO/RP-0 GitHub Wiki KSP also tends to have very harsh induced drag if angle of attack gets too high. Third, which I haven't given a good try, would be a carefully-timed deorbit maneuver so you come down through your desired location as you fall from space. What you should be concerned about is atmospheric drag, and that's minimized by high-altitude flight. That's all true, but just read the OP: hypersonic appears to be completely out of the question. principle. (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. The SR-71 could probably fly higher, but it isn't flying any more. I'm in career mode (have the turbofan engine) and trying to get some science readings for a mission at a high altitude. Unfortunately, most space plane designs are impossible (or at the very least impractical) at your current tech level. There are two factors to that: how thick the air is, how fast the ship is going. You cannot paste images directly. - Spamming airintakes didn't help. Or is it the same for all celestial bodies? http://www.youtube.com/user/Cruzanak?sub_confirmation=1Quicklinks to topics in this videoJet Engine Concepts: 0:30Air Intakes: 1:13Flameouts: 2:22Control Surfaces: 5:08Flying Tips: 5:57This video will go over everything that you need to know about to design a capable plane that can fly in the thinnest of atmospheres. Note that you need to activate the afterburner ("Wet Mode") manually. Powered by Invision Community. That's because wings need to have some AoA to the airstream in order to generate much lift. High altitude planes - Kerbal Space Program Forums Once you're at that regime, you should be able to cover huge distances on tiny amounts of fuel. I've added more engines, more intakes to no avail. Any of my search term words; All of my search term words; Find results in. Thats my problem right now. What are the units of measure used in Kerbal Space Program? A jet engine from KSP 0.18 A jet engine is an air-breathing engine which uses onboard liquid fuel and combusts it with the oxygen drawn from the atmosphere. 4. Planes in Space - The Kerbal Player's Guide [Book] With some fins to keep you stable and careful aim, you can hit your desired location and altitude and will have 5-10 seconds to collect data before you hurtle past it and pull your chute. Redoing the align environment with a specific formatting, Trying to understand how to get this basic Fourier Series. Information Changelog Stats You can post now and register later. with a thrust vectoring range of only 3 degrees. As said above, the Wheesley is specifically designed as a low altitude engine. Clear editor. Remember that you need to have intakes somewhere in line with the engine to function at that altitude. Early career high altitude observations question : r/KerbalAcademy 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)? You can post now and register later. 2/3 (KSP 1.11.2) - YouTube I break out the Mk2 parts and Panther engines to build a better jet that can go higher and faster. Subscribe -. What's the difference between a power rail and a signal line? Air Intake: Air Intake shows the amount of force your engine uses to suck air into the turbine. A well-designed jet with this engine and with the afterburner lit, flown properly, can momentarily climb to 30,000 m altitude. Why that? 2022 Take-Two Interactive Software, Inc. So if you replace the turbos with basic jets, you will have more thrust from the ground up, and your vessel will weigh slightly less. . It will be expensive and time consuming. its rather flat but its a solid surface. Cookie Notice 2022 Take-Two Interactive Software, Inc. Make sure we're on the same page with terminology. Which lets you go faster, which lets you climb higher. That annoys me but I can't seem to get a design to make it work. Note: Your post will require moderator approval before it will be visible. To get higher with the low tech jet engines, you need rocket assist. Then it is "In Space Low over Mun.". Running the 60U engine at about 40U seems to give me a good balance between reduced drag and air intake. Technically, any rocket engine is also a jet engine as it forms a high-speed jet of reaction mass. Each stage of the rocket has a delta-v that depends on the stage fuel mass and the engine specific impulse. When I say ", You know you've nailed it correctly if, when you're in level flight, your. Once it's in the air, it's stable and easy to fly and manages to fly at altitudes between 11k 12k without problems. Ksp engine altitudes : r/KerbalSpaceProgram - reddit In addition to the traditional giant tube of explosions that flings things up high approach, Kerbal Space Program includes a very useful piece of equipment that became quite popular in the 20th century: wings.. You can post now and register later. Powered by Invision Community, Thanks, I'll go try to stuff a few extra turbojets and intakes on my plane, I was generally under the impression that basic jets were mostly deadweight on high-performance aircraft: [] at hypersonic velocities. Rockets aren t the only way to get to space. 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. Or you need to put a little bit of angle of incidence in your wings, which will reduce drag since you don't have to pitch the entire plane up, but will be stuck at a fixed angle meaning you'll have to pitch up or down anyway during certain phases of the flight that the plane isn't optimised for. J-404 "Panther" Afterburning Turbofan - Kerbal Space Program For example, the RAPIER engine doesn't seem as the first choice as the "best" high altitude air-breathing engine but in long-distance and high-altitude challenges it is. I start with the normal jet engines (which takes almost the complete runway). The other thing to bear in mind is that tuning the AoA (angle of attack) of your wings makes a difference. I've since shaved that down more but that was by going even higher and even faster). That would argue for going as high as possible, as slow as possible, but apart from drag you also have to fight gravity. But. 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. Laythe - Kerbal Space Program Wiki Aircraft can be very temperamental to fly, especially on the keyboard. 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. If you want to cover your aircraft with loads of intakes, I'm sure you could easily fly above 35km and reach 2000+ m/s velocity. Air temperatures vary with latitude and time of day. KSP Delta-V Calculator - KSP HOW TO CALCULATE DELTA-V 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?). 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. I'm in career mode and got all groups of the 45-science-cost level, except Flight Control, and additionally have Electrics, Heavy Rocketry and Fuel Systems. If it's above the cross-hairs, you need a little less. At that point your engines will be running about .7-.8 efficiency and you will be out of the thicker atmo which will allow you to go faster. Build a plane or rocket for Kerbal high altitudes, We've added a "Necessary cookies only" option to the cookie consent popup, Screenshot of the Week #85 [Submissions Closed - Vote Now!]. Powered by Invision Community. Valve Corporation. Yes. Connect and share knowledge within a single location that is structured and easy to search. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 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). Please consider starting a new thread rather than reviving this one. alternatively, combine a liquid fuel rocket into your plane. Challenges If it's below the cross-hairs, you need a little more AoA. I'd almost expect it to work better in stock since infini-gliders can be done. Editing Kerbal Space Program save files for KSO, Rasterpropmonitor for Kerbal Space Program. 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. As you found out, it basically konks out at 15km. The Rapier, for example, works great as a high-altitude engine, precisely because it can go so fast. KSP - High Altitude Aircraft 16,702 views Jan 22, 2016 172 Dislike Share Save Phoenix Fleet Systems 222 subscribers Have a type of atmospheric craft you'd like to see me experiment with? The easiest "default" way to build a plane in KSP-- i.e. You can do that by right-clicking the engine and clicking "Toggle Mode." Should i add a larger wing area for higher lift? I also set it to enable the cockpit's reaction wheels to improve control at high altitude, and close air intakes to reduce drag. How do i build a high altitude plane? : r/KerbalSpaceProgram - reddit Have a plane that ditches its wings and rockets up to 18km once you reach the right point. 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. Sustained flight at over 20km requires at a minimum the Panther in Afterburning mode. Thank you, I was able to reach up to 24km altitude with this design. Even up there the plane acts squirrely. Check out the website and try the game out for yourself :Dhttps://kerbalspaceprogram.com/ Plane - Kerbal Space Program Wiki Basically you just need to fiddle with it and try some test flights. 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." 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. How do I install mods for Kerbal Space Program 1.1? Pasted as rich text. 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. Air Flow + max. Tutorial: Making the AI fly | BDArmory Wikia | Fandom I got this game so I could over-engineer rockets, so I mostly ignore the airplanes. KSP - High Altitude Aircraft - YouTube June 3, 2022 . These are the building blocks of solid spaceplane design!Subscribe! Using indicator constraint with two variables, Is there a solution to add special characters from software and how to do it. Put a couple of radial mount parachutes just above the com and add a reaction wheel. It is boosted into space by a launch vehicle, then re-enters Earth's atmosphere and lands as a spaceplane. What determines the maximum altitude a plane can reach? Your previous content has been restored. These designs are great for getting around Kerbin quickly, but without going orbital. Highest and fastest possible is best. What plane in existence can fly at the highest altitude, and - Quora 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. Anyway thanks in advance. Air Intake) and how fast your aircraft ultimately flies (air resistance/altitude)! Designing a High Altitude Jet | KSP: Making Space Home Mike Aben 24.8K subscribers Join Subscribe 85 Share 3.4K views 1 year ago Ep. Be aware that heat buildup can gradually become a problem when the afterburners are used in sustained flight. Welcome to the forums, ZDW. This can make it a good alternative for when you want something that can be controllable and doesn't need excessive heat shielding, but still need to be able to go incredibly fast if necessary, at the expense of increased fuel consumption. Have you checked out the wiki yet? If you nudge your wing's angle up slightly with rotate tool then it'll move your prograde closer to your direction of flight and significantly reduce drag. surface of jool. 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. This thread is quite old. Using Kolmogorov complexity to measure difficulty of problems? The longest flight got them down to a little more than half full. Is it even possible? 1 Pod outside the level 3 VAB. Once I'm near or in the target area, I set the throttle to 0 and start the Swivel. a screenshot of kerbal space program 2. by: lord bird. At sea level, it produces 120 kn thrust, but at 15 km altitude, it only produces 13.7 kn of thrust, barely enough to provide any thrust to climb higher, Long and narrow wing has less surface area to provide lift, and at higher altitude, the atmospher is so thin that the lift generated by long and narrow wings is insufficient for sustainable flight. When added to a plane it allows tuning of the controls vs speed/altitude/G load/other factors. i recently used a single whiplash plane and was able to maintain a stable 21-22k meter altitude. Another approach, which I was managing with some success before I figured out jets, is to build a rocket and catapult yourself towards the measurement point. Keep in mind that wheesley engine's performance decreases significantly as the altitude increases. Grichmann's answer has been the most reliable way I've found to complete these missions. edited 6 yr. ago. Dedicated to the growth and advancement of amateur rocket scientists! It may work with stock too, I just don't know. I don't have that cockpit in my career game yet, but maybe it will work with the other one. My 'plane science' is more advanced than my 'rocket science' (career mode) because I got tired of seeing all the high-altitude missions I had on the books and wanted to finish them. This lowers their effective "weight"-- for example, a craft flying at 1400 m/s on Kerbin is effectively flying as if gravity were only 2/3 of its actual value. Kerbal Space Program ( KSP) is a space flight simulation video game developed by Mexican developer Squad for Linux, OS X, Windows, PlayStation 4, PlayStation 5, Xbox Series X/S and Xbox One. 3.) By climbing, you reduce drag, exponentially with altitude. The U-2's published maximum altitude is somewhere above 74,000 feet. Even if the air is thin, you can still put out plenty of power if you are shoving enough in with raw speed. 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. How to tell which packages are held back due to phased updates. Any advices for building a vehicle for this task? Display as a link instead, Yes. I started by attaching two LV-909 rocket engines to a regular low-atmosphere plane: In this save, I don't have custom action groups yet, so I'm using the RCS control to toggle between jet and rocket modes. I also added a parachute and decoupler since I find it too hard to correctly land this thing yet ;-) I managed to land in the water once, though. Even better, burn a little more, and you can pop out of the atmosphere for a bit and avoid all that nasty drag stuff. ksp high altitude planebad bunny tour 2022 tickets ksp high altitude plane. Also, Valley and Theomon fly to different corners of Kerbin and three mapping satellites are launched. 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. Discord - https://discord.gg/HTvT7dZ Making Space Home Playlist - https://www.youtube.com/playlist?list=PLB3Ia8aQsDKhqoFyoZ4d33MG7rS9KmDm_0:00 - Designing the Dudley Mk16:42 - Test Flights \u0026 Iterating13:45 - Col. Valley take the Seaplane to the Northern Ice Shelf19:30 - Launch \u0026 Insertion of the Maxwell Vb21:04 - Col. Theomon \u0026 Orlin Visit the Badlands in the Panther24:20 - Launch \u0026 Ejection of the Maxwell VI26:34 - Designing the SENTINEL 129:47 - Launch \u0026 Insertion of the Maxwell VIIFull List of Mods: Aviation Lights Chatterer Community Tech Tree Crew R\u0026R Croud Sourced Science Contract Configurator Contract Packs: Bases and Stations Reborn CommNet Relays Exploration Plus Field Research Kerbal Academy Tourism Plus Contracts Window+ Decoupler Shroud Easy Vessel Switch Kerbal Alarm Clock Kerbal Attachment System Kerbal Construction Time Kerbal Engineer Redux Kerbal Inventory System Kerbalism kOS KRASH Maneuver Node Evolved Navball Alignment Indicator Near Future Aeronautics Near Future Construction Near Future Electrical Near Future Propulsion Near Future Solar Near Future Spacecraft Persistent Rotation Rational Resources RCS Build Aid Continued Restock Restock+ SCANsat Scrapyard SMART Parts Stage Recovery Stockalike Station Parts Expansion Redux TAC Fuel Balancer Texture Replacer Trajectories Transfer Window Planner Universal Storage 2 Unkerballed Start Waypoint Manager This makes jets built using this engine considerably more maneuverable. I'm going to try adding a small solid fuel rocket engine toned down to get the initial height then dump it, as well as check into that high end gear mentioned. - "In Space Low" means your craft is inside the "Space Border" altitude and in an orbital path. A full suite of flaps on the trailing edges of the main wings give it exceptional low-speed lift, and small hydroplane steps mounted on each side of the fuselage bottom help lift it out of the water (lowering water drag) during takeoff runs. As high and fast as you can go without engine flameout: preferably ~2000 m/s at 25-30 km (and yes, that's almost orbital velocity). Under some circumstances, you may want to reduce the engine gimbal range or disable it altogether, particularly when flying at high speeds (e.g. Your link has been automatically embedded. Long distance airplane flight tips? - Kerbal Space Program Forums Air Flow: Air Flow represents with how much force air passes the turbine (notice: different amounts of air at the same speed equals in different amounts of force!). 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. In this case lots of fuel is the wrong approach, I can get more than half way around Kerbin on 2 cans of Jet Fuel and a turbojet if I glide most of it. Welcome to the forums. Unfortunately I won't be able to test it today, but @SaintWacko's proposal sounds promising. 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.