General Electric F-404 Afterburning Turbofan, Stratus-V Cylindrified Monopropellant Tank, Kerbodyne KR-2L+ "Rhino" Liquid Fuel Engine, LFB KR-1x2 "Twin-Boar" Liquid Fuel Engine, T-1 Toroidal Aerospike "Dart" Liquid Fuel Engine, S1 SRB-KD25k "Kickback" Solid Fuel Booster, IX-6315 "Dawn" Electric Propulsion System, AE-FF1 Airstream Protective Shell (1.25m), AE-FF3 Airstream Protective Shell (3.75m), PB-NUK Radioisotope Thermoelectric Generator, https://wiki.kerbalspaceprogram.com/index.php?title=J-404_%22Panther%22_Afterburning_Turbofan&oldid=95515. Or try using SRBs instead. The U-2 is probably the highest altitude aircraft still flying. The most efficient way is, of course, to make a high altitude (or space) plane. You arent doing anything wrong. KSP doesn't care (much) about aspect ratio; the total lift is the same regardless of configuration. The other one I stay around 6000 meters. The Rapier, for example, works great as a high-altitude engine, precisely because it can go so fast. You cannot paste images directly. Challenges What's the difference between a power rail and a signal line? That's sub-optimal, because having the fuselage pitched like that means it'll have more drag than it otherwise would have. It seems to be based on the General Electric F-404 Afterburning Turbofan, which shares the same name and maximum thrust (85 kN dry). The high performance engine for me performs pretty good till about 15000 meter. 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." You get tons of thrust if you put it into "wet" mode, but you lose fuel efficiency. Display as a link instead, It's also worth noting that this engine has the widest thrust vectoring range of all of the jet engines, with a full 10-degree range in all directions. Here's my example of dealing with the situation. 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 -. I've added more engines, more intakes to no avail. If your using NEAR/FAR, once you get high and fast, kill the engine and glide to save fuel. It's Kerbal Space Program v.22! 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. Of course, this thing has very limited range, speed and acceleration because of the extra weight. Pasted as rich text. If not, please explain why, which I know you have no problem doing! You can go above 20km with the J-404 Panther. Best way to get down into thicker air and land is to perform what dogfighters called a 'Split-S'. But a rockets can do it. I am currently designing a mission that will involve several very long distance plane flights. Strictly speaking this optimisation is unnecessary, but it can win you a bit of range. All other versions are slower and lower and unstable in turns. Or it can supercruise at three times the speed of an equivalent Wheesley jet (with nearly equal fuel efficiency) at 15,000 m altitude. 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. lost birth certificate near berlin; ksp high altitude plane. Early career high altitude observations question : r/KerbalAcademy It is boosted into space by a launch vehicle, then re-enters Earth's atmosphere and lands as a spaceplane. 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. In my case, it brought me to 20km up at a 45-degree angle, but it is probably not optimal. First off as of .15.1 intakes don't do anything. 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.. Visit Stack Exchange With the tanks disconnected that way, the rockets don't leach from the jets. I was hoping that the new intakes would give it the added altitude. Approximately 12km up the main engines stop providing enough thrust to maintain the climb, so it's time to switch to rocket mode. TLDR: You need parts you don't have to make a plane that flies that high. Powered by Invision Community. That would argue for going as high as possible, as slow as possible, but apart from drag you also have to fight gravity. 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. Why do many companies reject expired SSL certificates as bugs in bug bounties? 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. Most SSTO space planes would be able to accomplish this easily. Its an approximation missing someelements. Display as a link instead, It will be expensive and time consuming. I also set it to enable the cockpit's reaction wheels to improve control at high altitude, and close air intakes to reduce drag. The most efficient way is, of course, to make a high altitude (or space) plane. The flight time won't be as long, but you'll be able to fly a "plane" above 18km. 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)? Slap that behind a plane you'll be able to go beyond 20km without any trouble. Even if the air is thin, you can still put out plenty of power if you are shoving enough in with raw speed. The SR-71 could probably fly higher, but it isn't flying any more. Hello there. High altitude planes - Kerbal Space Program Forums It may take some practice to hit your target area this way, because you'll be picking up additional horizontal speed, and thus it's possible to under or overshoot. Yes. 2.) If you have an account, sign in now to post with your account. Arqade is a question and answer site for passionate videogamers on all platforms. - Inside the atmosphere works the same way, except you need to be on an suborbital trajectory. The more successful the flights, the more successful the space program is. As you found out, it basically konks out at 15km. The Kerbal Space Program subreddit. The ideal case for optimally efficient flight (which is what you want if you're trying to maximize cruise altitude) is when your wings are mounted to the body, pitched up just enough that when cruising in level flight, the body of the aircraft is pointing perfectly . Really. rev2023.3.3.43278. This tutorial will cover designing and flying a plane that can soar at high altitudes! There is no such thing as "so high radar can not detect it", since radar can detect things in outer space. 2022 Take-Two Interactive Software, Inc. Be sure to have enough intakes (I think maximum efficiency in stock is 1 ramjet intake per ~2 tons of plane, though that is aesthetically ridiculous), and if you're still running short of intake air, you can dip down a bit to speed up and get to denser air. I also had problems with a high altitude plane until I decided to follow the K.I.S.S. Steam Workshop::damn wow You do get certain inertial and lever-arm effects, but those aren't really relevant to 'do I have enough lift to stay up'. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Or is it the same for all celestial bodies? Kerbal Space Program - Wikipedia Your previous content has been restored. This thread is quite old. The benefits should be obvious. Double your speed, you need twice as much fuel. I don't have the numbers handy, but you can expect something like 400m/s at 15km. Thats my problem right now. Kerbin | Kerbal Space Program Wiki | Fandom Building a High Altitude Jet | Stream pt. I looked into the .cfg files and there are no special properties allocated to them. For all your gaming related, space exploration needs. Don't rely on the efficiency indicator! If it's above the cross-hairs, you need a little less. Make sure you've angled your wings up slightly so that you provide enough lift for a 0 angle of attack at top speed. How do you get out of a corner when plotting yourself into a corner. Have a plane that ditches its wings and rockets up to 18km once you reach the right point. Under some circumstances, you may want to reduce the engine gimbal range or disable it altogether, particularly when flying at high speeds (e.g. Note: Your post will require moderator approval before it will be visible. Listen to this guy, don't go much farther above 15000 with high altitude engines. I wasn't expecting so many excellent answers! New comments cannot be posted and votes cannot be cast. 2022 Take-Two Interactive Software, Inc. Espaol - Latinoamrica (Spanish - Latin America), https://steamcommunity.com/sharedfiles/filedetails/?id=1933948095, https://steamcommunity.com/sharedfiles/filedetails/?id=1933948668, https://steamcommunity.com/sharedfiles/filedetails/?id=1934517923, https://steamcommunity.com/sharedfiles/filedetails/?id=1335577943, https://steamcommunity.com/sharedfiles/filedetails/?id=1640213502, https://steamcommunity.com/sharedfiles/filedetails/?id=1640214586, https://steamcommunity.com/sharedfiles/filedetails/?id=1937826505, https://steamcommunity.com/sharedfiles/filedetails/?id=1937931692. Imagine that first plane but with the bubble cockpit and the old style round intakes. Delta-V is the velocity change necessary to perform orbital maneuvers. Information Changelog Stats Planes and Altitude differences. :: Kerbal Space Program General How do I install mods for Kerbal Space Program 1.1? High altitude (~20km) possible with normal plane engines? Keep in mind that wheesley engine's performance decreases significantly as the altitude increases. 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. This page was last edited on 22 December 2019, at 20:54. Is there a single-word adjective for "having exceptionally strong moral principles"? Note: Your post will require moderator approval before it will be visible. Please consider starting a new thread rather than reviving this one. I tried building a plane but can't climb higher than about 11,000m (I don't have many plane parts yet, though). Laythe - Kerbal Space Program Wiki - "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. Once you're at that regime, you should be able to cover huge distances on tiny amounts of fuel. Trying to do something without the right part is long and difficult path. KSP - High Altitude Aircraft - YouTube The Boeing X-37, also known as the Orbital Test Vehicle (OTV), is a reusable robotic spacecraft. That would oscillate slowly between 16000m and 17000m but was otherwise fully controllable. KSP Career: Episode 13 - High Altitude Surveys Mike Aben 28.5K subscribers Subscribe 7.7K views 7 years ago Day 114: A busy day at the KSC with three missions, the highlights being the launch. That's just a guess, though-- perhaps someone more familiar with FAR could weigh in.). Paste as plain text instead, As has been said, ISP is nothing to worry about. 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. With only panthers unlocked I might add. To reach the initial low Earth orbit of the International Space Stationof 300 km (now 400 km), the delta-v is over six times higher, about 9.4 km/s. J-404 "Panther" Afterburning Turbofan - Kerbal Space Program Well, this game isn't a perfect flight simulator yet, so it will be difficult to figure out. Use the reaction wheel to hold your attitude slightly nose down as you float down and you can guide yourself like a paraglider. 2022 Take-Two Interactive Software, Inc. below 5,000 m), since the engine's extreme maneuverability may allow the aircraft to perform turns sharply enough to break up in flight. I checked the wiki before I wrote my question, it seems I overread this paragraph Something that I think has become less clear since someone updated the wiki. When added to a plane it allows tuning of the controls vs speed/altitude/G load/other factors. I'm in career mode (have the turbofan engine) and trying to get some science readings for a mission at a high altitude. The sweet spot for the upper atmo engines, I find, is between 10k and 12k. But you'll need to unlock: High Altitude Flight Which cost 300 science. Thank you, I was able to reach up to 24km altitude with this design. This way control surface max deflection can be programmed by an aircraft designer to make . 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. 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. 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. That will unlock: "Whiplash" Turbojet Which is capable of high altitude, high speed flight. 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. Can't remember where I saw/read about it - Scott Manley maybe? Your airspeed is mostly limited by terminal velocity; you can go much faster if you climb a little higher. If too much air runs into the turbine, the excessive amount just flows out unused through side-vents (I think). But maybe your patience? 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 Note: Your post will require moderator approval before it will be visible. At altitude the nose goes up and down until it goes out of control. A well-designed jet with this engine and with the afterburner lit, flown properly, can momentarily climb to 30,000 m altitude. Your engine burns the same amount of jetfuel per second regardless of how high or fast you are! Should i add a larger wing area for higher lift? So, to correct " is below crosshairs", what you need to do is to add a little AoA to the wings. at the very least, you'd need the panther, that'll get you over 16k easily, well to 25k. These are the building blocks of solid spaceplane design!Subscribe! 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. What are the altitudes for the various altitude record contracts? In the game, players direct a nascent space program, staffed and crewed by green humanoid aliens known as "Kerbals". I would like to know which altitude I have to maintain for my experiments. The J-404 "Panther" Afterburning Turbofan is a jet engine added in version 1.0.5. AoA built into the wing relative to the plane body is called the angle of incidence, just to help clear up. Thanks. . 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. Running the 60U engine at about 40U seems to give me a good balance between reduced drag and air intake. Delta-v budget - Wikipedia And it's stock, unfortunately. 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. Most efficient cruise altitude for jet planes? : r/KerbalSpaceProgram You'll notice that usually your prograde marker is slightly below your pitch. 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. This makes jets built using this engine considerably more maneuverable. Though I'm still working on learning to be better at space planes. Let me share what I know about jet engines, speed, and efficiency. http://kerbalspaceprogram.com, Press J to jump to the feed. Unfortunately, most space plane designs are impossible (or at the very least impractical) at your current tech level. Note that keeping the plane weight low is critical, only carry a very small amount of fuel. Air Intake) and how fast your aircraft ultimately flies (air resistance/altitude)! This is the first version. They always seem to lose power at about 15km, but I'm wondering if there's something I can do to fix that. 2022 Take-Two Interactive Software, Inc. 3x06: I design a new, high altitude, jet to collect high atmospheric science. Additionally please know that .16 will feature new code that will change the way space planes work in every aspect. Maneuver node plans don't take drag into account, so you'll have to overshoot quite a bit to compensate. If it's below the cross-hairs, you need a little more AoA. 2022 Take-Two Interactive Software, Inc. Due to the lower air pressure at higher altitudes its thrust output decreases accordingly. Beginner's Guide: Tips and Basics - Kerbal Space Program 2 Wiki Guide - IGN Your previous content has been restored. (Disclaimer: I've never used FAR myself; all of the above is based on my experience with stock aerodynamics. However, it seems as if your delta wing has has more area, might that be it? You can post now and register later. The best answers are voted up and rise to the top, Not the answer you're looking for? Plane - Kerbal Space Program Wiki First is thrust; the higher you get, the lower the thrust your engines deliver. You will find that when you're flying around, will always be slightly below the crosshairs on the navball. Be aware that heat buildup can gradually become a problem when the afterburners are used in sustained flight. Put a couple of radial mount parachutes just above the com and add a reaction wheel. To get higher with the low tech jet engines, you need rocket assist. If you've attached them to your fuselage with zero AoA, what that means is that when you fly, you're going to have to have the entire plane pitched slightly above in order to generate lift. Fighting oscillations. 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. Please consider starting a new thread rather than reviving this one. 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. This is my current best hi alt plane. Jets drop thrust at higher altitude and speed, but also drop . Which makes this engine ideal for those missions which require doing many science activities above particular altitudes. 600+ m/s) and low altitudes (e.g. Is it even possible? 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. KSP also tends to have very harsh induced drag if angle of attack gets too high. Exorcet's Content - Kerbal Space Program Forums 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. Then I increase throttle until about 2/3 or even full, climbing with a high inclination (it can also go straight up). TroubleshootingMechJebPVG - KSP-RO/RP-0 GitHub Wiki Once it's in the air, it's stable and easy to fly and manages to fly at altitudes between 11k 12k without problems. Learn more about Stack Overflow the company, and our products. 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. Paste as plain text instead, The returns are diminishing so eventually you will hit a ceiling. I was generally under the impression that basic jets were mostly deadweight on high-performance aircraft: while they are superior for low-speed, low-altitude operations, they become deadweight at hypersonic velocities. 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). - "In Space Low" means your craft is inside the "Space Border" altitude and in an orbital path. I have enough patience to do the slow flying, but is it horribly inefficient? 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). Here's Mr. Manley using it in his tutorial: @Pvt.Grichmann: I think it's at specific locations on Kerbin, not just anywhere above 18km. If it's above the cross-hairs, you need a little less. When you are surrounded by plenty of air there will of course be no need to suck in air artificially but the higher you get the less dense the air around you becomes and in order to make sure that your engines have enough oxygen to burn the fuel it needs to suck air in forcefully. 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. I got this game so I could over-engineer rockets, so I mostly ignore the airplanes. What am I doing wrong here in the PlotLegends specification. Designing a High Altitude Jet | KSP: Making Space Home 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. 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. Why that? Your link has been automatically embedded. You can post now and register later. I generally don't fuss with AoI unless I'm making a long range cruiser. In this chapter, you ll learn about the Space Plane Hangar, a building that forms part of the Kerbal . 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? Watch out for your SAS if you're running batteries without a jet for a long time. In the stock atmosphere, the benefits of moving faster outweigh almost everything else. 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. If too little air runs into the turbine your combustion chamber will not be able to burn up fuel effectively due to the lack of oxygen.
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ksp high altitude plane