Don't be too surprised if KSP's aero model breaks down in edge cases. Basically I can hit a target altitude of 20,000m but can not maintain it. But you'll need to unlock: High Altitude Flight Which cost 300 science. Ep. Isn't that backwards snark? high-1 A Screenshot of Kerbal Space Program By: miklkit This is the current version. 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. 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. Proceed with caution. 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. 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. Minimising the environmental effects of my dyson brain, Theoretically Correct vs Practical Notation. Dedicated to the growth and advancement of amateur rocket scientists! 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 -. Is there a single-word adjective for "having exceptionally strong moral principles"? Did any DOS compatibility layers exist for any UNIX-like systems before DOS started to become outmoded? So long as there's only one high-altitude measurement to take, you should be able to complete a whole set of 3-4 in one flight. 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. Your link has been automatically embedded. Why do many companies reject expired SSL certificates as bugs in bug bounties? Thank you, I was able to reach up to 24km altitude with this design. 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 Inland Kerbal Space Center itself, being in effect the old Kerbal Space Center from 0.2. Anyway thanks in advance. The Panther engine can hold 19,000 steady and oscillates around 20,000. Valve Corporation. What's the difference between a power rail and a signal line? 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. Use the reaction wheel to hold your attitude slightly nose down as you float down and you can guide yourself like a paraglider. The more successful the flights, the more successful the space program is. With the tanks disconnected that way, the rockets don't leach from the jets. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. The second, Wet mode, uses the afterburner to produce thrust almost equal to the J-X4 "Whiplash" Turbo Ramjet Engine, but at a considerably reduced fuel efficiency. Thats my problem right now. FBW uses three controllers - pitch, roll and yaw. You can post now and register later. The other one I stay around 6000 meters. - "In Space Low" means your craft is inside the "Space Border" altitude and in an orbital path. So, to correct " is below crosshairs", what you need to do is to add a little AoA to the wings. How can I make money in the new career mode? Its an approximation missing someelements. Most SSTO space planes would be able to accomplish this easily. Either of the two speeds are to be avoided. This makes jets built using this engine considerably more maneuverable. 2022 Take-Two Interactive Software, Inc. Make sure we're on the same page with terminology. - Spamming airintakes didn't help. 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. Display as a link instead, 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. 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. 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. Why is there a voltage on my HDMI and coaxial cables? Don't worry about Isp. These designs are great for getting around Kerbin quickly, but without going orbital. 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. 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. Ksp engine altitudes I've been trying my hand at some High altitude speedy planes for a while now, but can't seem to get a hang of the altitudes that each engine likes, I know kerbal isn't earth, so looking up the crushing altitude of say the sr71, doesn't seem to apply, but I was hoping that others experiences would help me. 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. Thanks for the help! You could try combining the two. Best way to get down into thicker air and land is to perform what dogfighters called a 'Split-S'. A destructible memorial to the old Mk. Your previous content has been restored. rev2023.3.3.43278. - Insane lift to weight didn't help. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Powered by Invision Community. 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. That would oscillate slowly between 16000m and 17000m but was otherwise fully controllable. Along with rockets, planes are one of KSP's most commonly referenced kinds of vessel, and are a vessel type . Connect and share knowledge within a single location that is structured and easy to search. Cookie Notice They will someday, but they don't now. My question is really about controllability. 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. The most efficient way is, of course, to make a high altitude (or space) plane. You can spin around the whole world on just fumes. Any of my search term words; All of my search term words; Find results in. How do I install mods for Kerbal Space Program 1.1? 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!]. You are just about at maximum speed and at the same time very close to stall speed. I generally don't fuss with AoI unless I'm making a long range cruiser. Or it can supercruise at three times the speed of an equivalent Wheesley jet (with nearly equal fuel efficiency) at 15,000 m altitude. 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? 2022 Take-Two Interactive Software, Inc. The most efficient way is, of course, to make a high altitude (or space) plane. New comments cannot be posted and votes cannot be cast. 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 Any advices for building a vehicle for this task? Basically you just need to fiddle with it and try some test flights. @SaintWacko's advice is probably the most practical. 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. Mounting a time-limited rescue mission for kerbal inbound to Kerbin. The easiest "default" way to build a plane in KSP-- i.e. 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 Clear editor. From my experience using a panther it starts to lose speed after 15-16 kms, a more suitable cruising height is 9-13km. Is anywhere a list of the altitude levels (I don't know a better term) available? You can post now and register later. 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. The flight time won't be as long, but you'll be able to fly a "plane" above 18km. What are the minimum altitudes for each warp level? As you found out, it basically konks out at 15km. This is my current best hi alt plane. Have a plane that ditches its wings and rockets up to 18km once you reach the right point. That annoys me but I can't seem to get a design to make it work. 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. 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. 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). However, I've failed to build a vehicle to achieve this (without a hundred retries). Please consider starting a new thread rather than reviving this one. EDIT: Essentially, make like an SR-71, if an SR-71 didn't have cooling problems limiting it to Mach 3.4. 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. I didn't succeed with his design, though; I always ended up having somehow unstable airplanes. This thread is quite old. My plane has turbojets and lots of fuel, but I am wondering what the optimal way to fly is. Imagine that first plane but with the bubble cockpit and the old style round intakes. AoA itself refers to the angle of the wing (or the whole plane if the AoI is 0)relative to the airflow. Pasted as rich text. There is a very close tolerance to the two speeds. 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. What altitude and speed should I go? 3.) 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. 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. Once it's in the air, it's stable and easy to fly and manages to fly at altitudes between 11k 12k without problems. Note: Your post will require moderator approval before it will be visible. If too much air runs into the turbine, the excessive amount just flows out unused through side-vents (I think). Paste as plain text instead, 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. I find that a conservative amount is 2 RAM intakes and 2-4 radial intakes per turbojet. 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. Even better, burn a little more, and you can pop out of the atmosphere for a bit and avoid all that nasty drag stuff. even stranger is that the surface is textured. How to tell which packages are held back due to phased updates. For comparison, the second most maneuverable engine is the CR-7 R.A.P.I.E.R. If you have an account, sign in now to post with your account. Unfortunately, most space plane designs are impossible (or at the very least impractical) at your current tech level. The most obvious solution is try and optimize your craft for high altitude lift by giving it long wingspan like a U-2 spyplane. I followed a similar strategy. 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. All other versions are slower and lower and unstable in turns. Paste as plain text instead, - "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. EDIT: Didn't notice you were using FAR. 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. Chapter 4. I'd almost expect it to work better in stock since infini-gliders can be done. FAR is supposed to take aspect into account, but I'm not very experienced with it and cannot advice you as to how it works. a screenshot of kerbal space program 2. by: lord bird. Your answer got me in the right direction, though I ended up with a different design (see my own answer). Once you're at that regime, you should be able to cover huge distances on tiny amounts of fuel. The maximum cruise altitude is just over 40,000 feet. Pasted as rich text. That's just a guess, though-- perhaps someone more familiar with FAR could weigh in.). 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. Here's my example of dealing with the situation. 2022 Take-Two Interactive Software, Inc. *I use FAR these days, which basically means completely replacing every spaceplane and rocket you ever designed to account for its much more realistic aerodynamics. This thread is quite old. Display as a link instead, It is somewhat slow but very steady in flight. 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. If it's below the cross-hairs, you need a little more AoA. It flames out at 25,000. Welcome to the forums. Powered by Invision Community. 1.) It is designed to aid in player-controlled flight on generic (space)plane, providing a soft layer between user joystick\keyboard input and control surface outputs. Once you're at that regime, you should be able to cover huge distances on tiny amounts of fuel. Note that you need to activate the afterburner ("Wet Mode") manually. And it's stock, unfortunately. What am I doing wrong here in the PlotLegends specification. 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. Cheers again fellas. Pretty often, the tail "wiggled" and/or the plane became totally unstable when I fired the rocket boosters. 1 Pod outside the level 3 VAB. 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. 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. 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). I didn't try for 20000m as it probably wouldn't do well. Or it can supercruise at three times the speed of an equivalent Wheesley jet (with nearly equal fuel efficiency) at 15,000 m altitude. The Rapier, for example, works great as a high-altitude engine, precisely because it can go so fast. Under some circumstances, you may want to reduce the engine gimbal range or disable it altogether, particularly when flying at high speeds (e.g. Aircraft can be very temperamental to fly, especially on the keyboard. "Whiplash" Turbojet. 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 not, please explain why, which I know you have no problem doing! Listen to this guy, don't go much farther above 15000 with high altitude engines. This thread is quite old. A well-designed jet with this engine and with the afterburner lit, flown properly, can momentarily climb to 30,000 m altitude. But. That will unlock: Even if the air is thin, you can still put out plenty of power if you are shoving enough in with raw speed. Yes, although they have only been flown with nearly full tanks. Paste as plain text instead, Ok, the panther engine is still not good enough. Of course, this thing has very limited range, speed and acceleration because of the extra weight. 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. They always seem to lose power at about 15km, but I'm wondering if there's something I can do to fix that. Clear editor. You cannot paste images directly. You'll notice that usually your prograde marker is slightly below your pitch. Using indicator constraint with two variables, Is there a solution to add special characters from software and how to do it. 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. I don't have the numbers handy, but you can expect something like 400m/s at 15km. But maybe your patience? 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. You arent doing anything wrong. The X-37 is operated by the United States Space Force for orbital spaceflight missions intended to demonstrate reusable space technologies. Thanks. No, I think it's correct, unless I've got a brain fart going, here. Only the fuel tanks attached to rockets have any oxidiser in them. 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 With only panthers unlocked I might add. 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. 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. Upload or insert images from URL. : : . This tutorial will cover designing and flying a plane that can soar at high altitudes! However, it seems as if your delta wing has has more area, might that be it? If you have an account, sign in now to post with your account. 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. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. You need to do it with what you've got. Challenges Using Kolmogorov complexity to measure difficulty of problems? i dont know what kind of range youre looking for but i would make a significantly smaller plane. Note that keeping the plane weight low is critical, only carry a very small amount of fuel. 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. Be aware that heat buildup can gradually become a problem when the afterburners are used in sustained flight. Yes. ksp high altitude planebad bunny tour 2022 tickets ksp high altitude plane. 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. 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). First is thrust; the higher you get, the lower the thrust your engines deliver. I decided to look into that two intakes thing, and it turns out to make 11-12 m/s difference at 19,000m with my plane. 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. You can go above 20km with the J-404 Panther. AoA and G-force moderation. Kerbal Space Program Jool Landing Youtube. As has been said, ISP is nothing to worry about. below 5,000 m), since the engine's extreme maneuverability may allow the aircraft to perform turns sharply enough to break up in flight. Basically there are two things that limit your maximum speed: thrust and speed of sound and with that your maximum altitude. Something that I think has become less clear since someone updated the wiki. Is it possible to get to an altitude of 16-20km with normal plane engines? KSP also tends to have very harsh induced drag if angle of attack gets too high. 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. So now to come to an end: from my experience I'd say for a medium sized aircraft it is best to fly between 12-13 km. Unfortunately I won't be able to test it today, but @SaintWacko's proposal sounds promising. I only seem to be able to make planes that can fly a bit below that altitude and then temporary rise to it. The Kerbal Space Program subreddit. Which lets you go faster, which lets you climb higher. That will probably allow you to fly comfortably above 20-25km (or higher, depending on the overall mass of your aircraft). 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. Create an account to follow your favorite communities and start taking part in conversations. I looked into the .cfg files and there are no special properties allocated to them. 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. KSP Quick Guides: High Altitude Design and Flying - Stock v.23 Stoober AK 3.32K subscribers Subscribe 21K views 8 years ago This tutorial will cover designing and flying a plane that can soar.

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