ksp high altitude plane ksp high altitude plane

Originally posted by lord bird: yep thats right jool has a surface. 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). No, I think it's correct, unless I've got a brain fart going, here. AoA itself refers to the angle of the wing (or the whole plane if the AoI is 0)relative to the airflow. surface of jool. The U-2 is probably the highest altitude aircraft still flying. Planes in Space. KSP also tends to have very harsh induced drag if angle of attack gets too high. Or it can supercruise at three times the speed of an equivalent Wheesley jet (with nearly equal fuel efficiency) at 15,000 m altitude. Display as a link instead, Slap that behind a plane you'll be able to go beyond 20km without any trouble. If it's above the cross-hairs, you need a little less. Why do small African island nations perform better than African continental nations, considering democracy and human development? You may be correct and that 3 engine plane is a lemon. The Rapier, for example, works great as a high-altitude engine, precisely because it can go so fast. The J-404 "Panther" Afterburning Turbofan is a jet engine added in version 1.0.5. (Disclaimer: I've never used FAR myself; all of the above is based on my experience with stock aerodynamics. At the equator, sea level temperatures vary between a nighttime low of 9 C and a daytime high of 15 C. Is it suspicious or odd to stand by the gate of a GA airport watching the planes? That's all true, but just read the OP: hypersonic appears to be completely out of the question. Or it can supercruise at three times the speed of an equivalent Wheesley jet (with nearly equal fuel efficiency) at 15,000 m altitude. Listen to this guy, don't go much farther above 15000 with high altitude engines. 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. As long a you can fly faster, the lower density at altitude can be compensated for. Pretty often, the tail "wiggled" and/or the plane became totally unstable when I fired the rocket boosters. What altitude and speed should I go? As long as the engine gets enough air it will work at proper efficiency. Air temperatures vary with latitude and time of day. Dedicated to the growth and advancement of amateur rocket scientists! Keep in mind that wheesley engine's performance decreases significantly as the altitude increases. 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). 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!). A destructible memorial to the old Mk. Sideslip handling. You could try combining the two. Turbojets are so ridiculously efficient that it doesn't really matter. 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. The Kerbal Space Program subreddit. I'd almost expect it to work better in stock since infini-gliders can be done. 1 Pod outside the level 3 VAB. Imagine that first plane but with the bubble cockpit and the old style round intakes. 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. 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. 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. Which makes this engine ideal for those missions which require doing many science activities above particular altitudes. This thread is quite old. I've been finding it difficult to build a jet that can fly over 15km alt. 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. Which is capable of high altitude, high speed flight. This means that the only thing that decides wheter your engines run efficient is determined by how much thrust they produce (opt. below 5,000 m), since the engine's extreme maneuverability may allow the aircraft to perform turns sharply enough to break up in flight. That would oscillate slowly between 16000m and 17000m but was otherwise fully controllable. Create an account to follow your favorite communities and start taking part in conversations. Reddit and its partners use cookies and similar technologies to provide you with a better experience. 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 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 Air Intake: Air Intake shows the amount of force your engine uses to suck air into the turbine. I find that a conservative amount is 2 RAM intakes and 2-4 radial intakes per turbojet. Will post my results. Note: This is ONLY to be used to report spam, advertising, and problematic (harassment, fighting, or rude) posts. 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. Slap that behind a plane you'll be able to go beyond 20km without any trouble. Because of the exponential nature of the rocket equationthe orbital rocket needs to be considerably bigger. KSP doesn't care (much) about aspect ratio; the total lift is the same regardless of configuration. As said above, the Wheesley is specifically designed as a low altitude engine. This works, but it's not optimal. 101 kPa 1 atm Scale Height 5000 m Atmospheric Height 69 077.553 m 1.010-6 atm Minimum Temprature -40.19 C 232.96 K Maximum Temprature 20 C 293.15 K Oxygen Present Yes Contents 1 Kerbin 2 Topography 3 Kerbal Space Center 4 Atmosphere 4.1 The Troposphere 4.2 The Stratosphere 4.3 The Thermosphere 4.4 The Exosphere 5 The Kerbin System 5.1 The Mun I start with the normal jet engines (which takes almost the complete runway). You can spin around the whole world on just fumes. Your link has been automatically embedded. Of course, this thing has very limited range, speed and acceleration because of the extra weight. Note that keeping the plane weight low is critical, only carry a very small amount of fuel. Sustained flight at over 20km requires at a minimum the Panther in Afterburning mode. 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. The Inland Kerbal Space Center itself, being in effect the old Kerbal Space Center from 0.2. - "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. Grichman's answer got me in the right direction. Display as a link instead, I have enough patience to do the slow flying, but is it horribly inefficient? - but they were talking about having two intakes/engine. I didn't succeed with his design, though; I always ended up having somehow unstable airplanes. I generally don't fuss with AoI unless I'm making a long range cruiser. Make sure you have lots of control surfaces because at very high in the atmosphere, there's not much air for the wings to control the craft with. Highest and fastest possible is best. even stranger is that the surface is textured. 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. First off as of .15.1 intakes don't do anything. Basically there are two things that limit your maximum speed: thrust and speed of sound and with that your maximum altitude. 2022 Take-Two Interactive Software, Inc. Main goals: Auto-trimming. The maximum cruise altitude is just over 40,000 feet. Connect and share knowledge within a single location that is structured and easy to search. There are two factors to that: how thick the air is, how fast the ship is going. 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. 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. All other versions are slower and lower and unstable in turns. These are the building blocks of solid spaceplane design!Subscribe! That's sub-optimal, because having the fuselage pitched like that means it'll have more drag than it otherwise would have. 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. 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. Been a while since I've flown stock*, but I've heard that, for maximum efficiency, you want one turbojet for every 7.5 tons, and about four ram intakes for each turbojet. 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?). Is anywhere a list of the altitude levels (I don't know a better term) available? You can do that by right-clicking the engine and clicking "Toggle Mode." 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. FBW uses three controllers - pitch, roll and yaw. In the game, players direct a nascent space program, staffed and crewed by green humanoid aliens known as "Kerbals". Cheers again fellas. The stratospheric region, where temperature rises as altitude increases, spans the region between the altitudes of 10 km and 22 km. Yes, you can get into that range with the high end stuff (whiplash engines and ram or shock cone air intakes). Air Flow + max. lost birth certificate near berlin; ksp high altitude plane. TLDR: You need parts you don't have to make a plane that flies that high. All rights reserved. - "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. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Display as a link instead, There is no such thing as "so high radar can not detect it", since radar can detect things in outer space. Kerbal Space Program 2 . This thread is quite old. What are the units of measure used in Kerbal Space Program? Maneuver node plans don't take drag into account, so you'll have to overshoot quite a bit to compensate. New comments cannot be posted and votes cannot be cast. The flight time won't be as long, but you'll be able to fly a "plane" above 18km. Clear editor. high-2 A Screenshot of Kerbal Space Program 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. 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 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 arent doing anything wrong. But you'll need to unlock: Which cost 300 science. Also, jets eat fuel at pounds-per-minute -- if you cover twice as much ground in the same time, your plane will be more efficient. edited 6 yr. ago. What's the difference between a power rail and a signal line? What are the minimum altitudes for each warp level? Your answer got me in the right direction, though I ended up with a different design (see my own answer). Thankyou all, I now reckon I have a much better understanding of the engines, hopefully that'll translate to better aircraft. (the engines will use very little at high altitude anyway). If it's above the cross-hairs, you need a little less. But since when do Kerbals wait for ideal conditions? Your engine burns the same amount of jetfuel per second regardless of how high or fast you are! Chapter 4. I'm trying to build a high altitude plane and have found out that the rules are different. 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. Your previous content has been restored. I followed a similar strategy. 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. 3x06: I design a new, high altitude, jet to collect high. It is somewhat slow but very steady in flight. How can this new ban on drag possibly be considered constitutional? Even if the air is thin, you can still put out plenty of power if you are shoving enough in with raw speed. 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. The U-2's published maximum altitude is somewhere above 74,000 feet. You can post now and register later. Pasted as rich text. Should i add a larger wing area for higher lift? 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? 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. Cookie Notice 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. All the information you could want to know about science, including the altitudes for each celestial body, and what altitudes a given experiment works on are available at: http://wiki.kerbalspaceprogram.com/wiki/Science. How do I install mods for Kerbal Space Program 1.1? 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. 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 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. Hello there. If it's below the cross-hairs, you need a little more AoA. You get tons of thrust if you put it into "wet" mode, but you lose fuel efficiency. Whiplash is the engine you would want to use on a plane meant to go 20km. Make sure you've angled your wings up slightly so that you provide enough lift for a 0 angle of attack at top speed. But. 3x06: I design a new, high altitude, jet to collect high atmospheric science. There is a very close tolerance to the two speeds. Thanks for asking this, I've been struggling with the same problem in career mode. Then I increase throttle until about 2/3 or even full, climbing with a high inclination (it can also go straight up). The most obvious solution is try and optimize your craft for high altitude lift by giving it long wingspan like a U-2 spyplane. 2022 Take-Two Interactive Software, Inc. Watch out for your SAS if you're running batteries without a jet for a long time. Once you're at that regime, you should be able to cover huge distances on tiny amounts of fuel. 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. 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. I don't recall if they model aspect ratio, but either way, the struts are murder and the delta wing has so much more wing that it'll still have more lift. Additionally please know that .16 will feature new code that will change the way space planes work in every aspect. The sweet spot for the upper atmo engines, I find, is between 10k and 12k. From my experience using a panther it starts to lose speed after 15-16 kms, a more suitable cruising height is 9-13km. I was hoping that the new intakes would give it the added altitude. Note: Your post will require moderator approval before it will be visible. If it's below the cross-hairs, you need a little more AoA. Incidentally, for these speeds and altitudes, ordinary jets are the better choice. Fighting oscillations. probably the easiest place to land in the system as terminal velocity is survivable for a craft less kerman. This makes jets built using this engine considerably more maneuverable. Delta-V is the velocity change necessary to perform orbital maneuvers. But my guess is that these same general principles would probably apply to FAR, and that all that would change would be the numbers involved. Please consider starting a new thread rather than reviving this one. My question is really about controllability. 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). 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. Once it's in the air, it's stable and easy to fly and manages to fly at altitudes between 11k 12k without problems. Let me. You'll notice that usually your prograde marker is slightly below your pitch. 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. If you have an account, sign in now to post with your account. Why is there a voltage on my HDMI and coaxial cables? 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. In this chapter, you ll learn about the Space Plane Hangar, a building that forms part of the Kerbal . You cannot paste images directly. Any of my search term words; All of my search term words; Find results in. jet engine efficiency in this game is based on built in thrust curves. 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. As you found out, it basically konks out at 15km. One of my planes is small and agile, and can easily enough glide to a safe landing even if the rockets consume all the fuel. The main body is a fuel tank with a Swivel engine at the end. You can go above 20km with the J-404 Panther. I looked into the .cfg files and there are no special properties allocated to them. 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). Note that you need to activate the afterburner ("Wet Mode") manually. 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.