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. I also set it to enable the cockpit's reaction wheels to improve control at high altitude, and close air intakes to reduce drag. Note: Your post will require moderator approval before it will be visible. 2022 Take-Two Interactive Software, Inc. Make sure we're on the same page with terminology. If it's above the cross-hairs, you need a little less. I didn't succeed with his design, though; I always ended up having somehow unstable airplanes. Powered by Invision Community. Alternatively, you can assign the afterburner toggle (labelled "switch mode") to an action group if you wish to activate it with a hotkey. All rights reserved. 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. 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. You cannot paste images directly. - Inside the atmosphere works the same way, except you need to be on an suborbital trajectory. Check out the website and try the game out for yourself :Dhttps://kerbalspaceprogram.com/ This tutorial will cover designing and flying a plane that can soar at high altitudes! New comments cannot be posted and votes cannot be cast. Something that I think has become less clear since someone updated the wiki. as a rule of thumb they all lose thrust at higher altitudes and at high velocities. 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. Technically, any rocket engine is also a jet engine as it forms a high-speed jet of reaction mass. 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. 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 is somewhat slow but very steady in flight. Watch out for your SAS if you're running batteries without a jet for a long time. 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. Why is there a voltage on my HDMI and coaxial cables? Very cool. Proceed with caution. Upload or insert images from URL. Due to the lower air pressure at higher altitudes its thrust output decreases accordingly. The Boeing X-37, also known as the Orbital Test Vehicle (OTV), is a reusable robotic spacecraft. Cookie Notice It is boosted into space by a launch vehicle, then re-enters Earth's atmosphere and lands as a spaceplane. That's just a guess, though-- perhaps someone more familiar with FAR could weigh in.). 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). 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 If not, please explain why, which I know you have no problem doing! Immediately starting rocket engines at full throttle turned out to make most of my aircrafts totally unstable, turning them up gradually worked way better. ksp high altitude planebad bunny tour 2022 tickets ksp high altitude plane. Though I'm still working on learning to be better at space planes. 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. 3x06: I design a new, high altitude, jet to collect high. 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. Note: Your post will require moderator approval before it will be visible. For all your gaming related, space exploration needs. 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. KSP also tends to have very harsh induced drag if angle of attack gets too high. Create an account to follow your favorite communities and start taking part in conversations. 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. You can do that by right-clicking the engine and clicking "Toggle Mode." Or try using SRBs instead. Even up there the plane acts squirrely. 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. How to make a loop for linear actuator in Kerbal Space Program, Breaking Ground. This means it is better to have excessive amounts of oxygen than not to. high-2 A Screenshot of Kerbal Space Program (Disclaimer: I've never used FAR myself; all of the above is based on my experience with stock aerodynamics. Paste as plain text instead, 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 -. At altitude the nose goes up and down until it goes out of control. 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. I'm in career mode (have the turbofan engine) and trying to get some science readings for a mission at a high altitude. The flight time won't be as long, but you'll be able to fly a "plane" above 18km. You can halve the drag by climbing a bit less than 3500m. Along with rockets, planes are one of KSP's most commonly referenced kinds of vessel, and are a vessel type . http://kerbalspaceprogram.com, Press J to jump to the feed. The U-2's published maximum altitude is somewhere above 74,000 feet. 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. 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. 1 Pod outside the level 3 VAB. 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. A well-designed jet with this engine and with the afterburner lit, flown properly, can momentarily climb to 30,000 m altitude. I also had problems with a high altitude plane until I decided to follow the K.I.S.S. Note that you need to activate the afterburner ("Wet Mode") manually. The best answers are voted up and rise to the top, Not the answer you're looking for? How can this new ban on drag possibly be considered constitutional? 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. 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. She has a horrible turn rate and oscillates a couple of thousand meters at cruise, but it's flyable. What altitude and speed should I go? What are the altitudes for the various altitude record contracts? If you enter the Mun's SOI, it immediately counts as "In Space High over Mun" until you get below 60km Mun altitude. Jets drop thrust at higher altitude and speed, but also drop . 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. The most obvious solution is try and optimize your craft for high altitude lift by giving it long wingspan like a U-2 spyplane. How do I align things in the following tabular environment? 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. You can post now and register later. Yes. Trying to do something without the right part is long and difficult path. AoA itself refers to the angle of the wing (or the whole plane if the AoI is 0)relative to the airflow. Press J to jump to the feed. air) that high up. Sideslip handling. The longest flight got them down to a little more than half full. 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. Press question mark to learn the rest of the keyboard shortcuts. This makes jets built using this engine considerably more maneuverable. I don't have that cockpit in my career game yet, but maybe it will work with the other one. principle. 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. 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. 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. It only takes a minute to sign up. 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. Range with this method is pretty short due to drag. Will post my results. 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. It seems to be based on the General Electric F-404 Afterburning Turbofan, which shares the same name and maximum thrust (85 kN dry). 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. Arqade is a question and answer site for passionate videogamers on all platforms. This way control surface max deflection can be programmed by an aircraft designer to make . It was meant for low altitude flight. Aircraft can be very temperamental to fly, especially on the keyboard. 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. 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!). I followed a similar strategy. 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. The main body is a fuel tank with a Swivel engine at the end. Reddit and its partners use cookies and similar technologies to provide you with a better experience. You can spin around the whole world on just fumes. . 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. You are just about at maximum speed and at the same time very close to stall speed. Delta-V is the velocity change necessary to perform orbital maneuvers. 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). That will unlock: Did any DOS compatibility layers exist for any UNIX-like systems before DOS started to become outmoded? 3.) 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 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. Slap that behind a plane you'll be able to go beyond 20km without any trouble. 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). 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. If your using NEAR/FAR, once you get high and fast, kill the engine and glide to save fuel. In this chapter, you ll learn about the Space Plane Hangar, a building that forms part of the Kerbal . 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. I should perhaps start trying out NEAR to get ready of 0.90, though. 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. The SR-71 could probably fly higher, but it isn't flying any more. This thread is quite old. The benefits should be obvious. Thats my problem right now. Then I increase throttle until about 2/3 or even full, climbing with a high inclination (it can also go straight up). 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. I start with the normal jet engines (which takes almost the complete runway). 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. AoA and G-force moderation. Secondly don't think of engines working better at different altitudes, think of them working better with different air intake quantities. 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!]. So Pvt. *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. Kerbal Space Program 2 . It will be expensive and time consuming. Either of the two speeds are to be avoided. 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. Your link has been automatically embedded. At this point the plane plummets, but as it goes deeper into the atmosphere, it regains pitch authority, and at 10km it's enough to regain control and turn it around for a safe landing. 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. You need to do it with what you've got. 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. Your previous content has been restored. Clear editor. It may work with stock too, I just don't know. Your link has been automatically embedded. 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 In the stock atmosphere, the benefits of moving faster outweigh almost everything else. Is there a single-word adjective for "having exceptionally strong moral principles"? And it's stock, unfortunately. You do get certain inertial and lever-arm effects, but those aren't really relevant to 'do I have enough lift to stay up'. 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.
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