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. Welcome to the forums. How can I make money in the new career mode? The other thing to bear in mind is that tuning the AoA (angle of attack) of your wings makes a difference. 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. I don't have the numbers handy, but you can expect something like 400m/s at 15km. For comparison, the second most maneuverable engine is the CR-7 R.A.P.I.E.R. Anyway thanks in advance. Learn more about Stack Overflow the company, and our products. - "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. You are just about at maximum speed and at the same time very close to stall speed. But a rockets can do it. 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. But maybe your patience? The most efficient way is, of course, to make a high altitude (or space) plane. 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. Hopefully this will be helpful to you. You can post now and register later. Simply changing the intakes made it fly completely out of control and impossible to land. 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). Don't rely on the efficiency indicator! The U-2's published maximum altitude is somewhere above 74,000 feet. 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. Remember that you need to have intakes somewhere in line with the engine to function at that altitude. Due to the lower air pressure at higher altitudes its thrust output decreases accordingly. Or is it the same for all celestial bodies? And it's stock, unfortunately. So, to correct " is below crosshairs", what you need to do is to add a little AoA to the wings. Thanks for the help! It was meant for low altitude flight. lost birth certificate near berlin; ksp high altitude plane. 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. probably the easiest place to land in the system as terminal velocity is survivable for a craft less kerman. Create an account to follow your favorite communities and start taking part in conversations. Air Flow + max. If you have an account, sign in now to post with your account. Note that you need to activate the afterburner ("Wet Mode") manually. I start with the normal jet engines (which takes almost the complete runway). Any of my search term words; All of my search term words; Find results in. Yes. 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. Unfortunately I won't be able to test it today, but @SaintWacko's proposal sounds promising. 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.. 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. 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!]. 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. Approximately 12km up the main engines stop providing enough thrust to maintain the climb, so it's time to switch to rocket mode. I didn't try for 20000m as it probably wouldn't do well. Why do many companies reject expired SSL certificates as bugs in bug bounties? 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. 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. This makes jets built using this engine considerably more maneuverable. My question is really about controllability. 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?). 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. But you'll need to unlock: High Altitude Flight Which cost 300 science. I looked into the .cfg files and there are no special properties allocated to them. All trademarks are property of their respective owners in the US and other countries. Hello there. Kerbal Space Program Jool Landing Youtube. You need to do it with what you've got. I also set it to enable the cockpit's reaction wheels to improve control at high altitude, and close air intakes to reduce drag. 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. its rather flat but its a solid surface. I am currently designing a mission that will involve several very long distance plane flights. Incidentally, for these speeds and altitudes, ordinary jets are the better choice. 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. 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. There's basically three ways to do that: lifting surfaces, thrust, and orbiting. No, I think it's correct, unless I've got a brain fart going, here. If it's below the cross-hairs, you need a little more AoA. Pretty often, the tail "wiggled" and/or the plane became totally unstable when I fired the rocket boosters. 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. 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. Valve Corporation. Paste as plain text instead, 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. 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. 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. Grichman's answer got me in the right direction. You cannot paste images directly. Once I'm near or in the target area, I set the throttle to 0 and start the Swivel. The SR-71 could probably fly higher, but it isn't flying any more. http://kerbalspaceprogram.com, Press J to jump to the feed. Planes in Space. All rights reserved. Chapter 4. Originally posted by lord bird: yep thats right jool has a surface. By climbing, you reduce drag, exponentially with altitude. Display as a link instead, Press question mark to learn the rest of the keyboard shortcuts. 2022 Take-Two Interactive Software, Inc. Then I increase throttle until about 2/3 or even full, climbing with a high inclination (it can also go straight up). Additionally please know that .16 will feature new code that will change the way space planes work in every aspect. i recently used a single whiplash plane and was able to maintain a stable 21-22k meter altitude. 2.) and our The more successful the flights, the more successful the space program is. 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. With only panthers unlocked I might add. Content titles and body; Content titles only But. It will be expensive and time consuming. Best way to get down into thicker air and land is to perform what dogfighters called a 'Split-S'. 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. Yes, although they have only been flown with nearly full tanks. The other one I stay around 6000 meters. - but they were talking about having two intakes/engine. Upload or insert images from URL. You may be correct and that 3 engine plane is a lemon. Proceed with caution. 3x06: I design a new, high altitude, jet to collect high. In the stock atmosphere, the benefits of moving faster outweigh almost everything else. The flight time won't be as long, but you'll be able to fly a "plane" above 18km. 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. So Pvt. I was hoping that the new intakes would give it the added altitude. Is there a single-word adjective for "having exceptionally strong moral principles"? TLDR: You need parts you don't have to make a plane that flies that high. 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). This causes the body of your plane to generate additional drag. This works, but it's not optimal. This thread is quite old. 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.). (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. Kerbal Space Program 2 . "Whiplash" Turbojet. Or it can supercruise at three times the speed of an equivalent Wheesley jet (with nearly equal fuel efficiency) at 15,000 m altitude. a screenshot of kerbal space program 2. by: lord bird. 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. Range with this method is pretty short due to drag. I don't have that cockpit in my career game yet, but maybe it will work with the other one. 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. Create an account to follow your favorite communities and start taking part in conversations. Is it even possible? Running the 60U engine at about 40U seems to give me a good balance between reduced drag and air intake. FBW uses three controllers - pitch, roll and yaw. @SaintWacko's advice is probably the most practical. 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. The main body is a fuel tank with a Swivel engine at the end. . Pasted as rich text. What's the difference between a power rail and a signal line? Its an approximation missing someelements. Mounting a time-limited rescue mission for kerbal inbound to Kerbin. with a thrust vectoring range of only 3 degrees. ksp high altitude planebad bunny tour 2022 tickets ksp high altitude plane. They always seem to lose power at about 15km, but I'm wondering if there's something I can do to fix that. 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. So I'm pretty darn new to KSP, and my career has barely gotten started, and the jobs for crew observations seem to dominate Press question mark to learn the rest of the keyboard shortcuts. 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. Then it is "In Space Low over Mun.". There is a very close tolerance to the two speeds. Personally, I don't enjoy survey contracts on Kerbin. There is no such thing as "so high radar can not detect it", since radar can detect things in outer space. 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. Which makes this engine ideal for those missions which require doing many science activities above particular altitudes. Turbojets are so ridiculously efficient that it doesn't really matter. 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 do you get out of a corner when plotting yourself into a corner. Well, this game isn't a perfect flight simulator yet, so it will be difficult to figure out. The sweet spot for the upper atmo engines, I find, is between 10k and 12k. Immediately starting rocket engines at full throttle turned out to make most of my aircrafts totally unstable, turning them up gradually worked way better. First is thrust; the higher you get, the lower the thrust your engines deliver. It's Kerbal Space Program v.22! Connect and share knowledge within a single location that is structured and easy to search. However, I've failed to build a vehicle to achieve this (without a hundred retries). It may work with stock too, I just don't know. Is anywhere a list of the altitude levels (I don't know a better term) available? Technically, any rocket engine is also a jet engine as it forms a high-speed jet of reaction mass. 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. But you'll need to unlock: Which cost 300 science. If you have an account, sign in now to post with your account. If it's above the cross-hairs, you need a little less. Keep in mind that wheesley engine's performance decreases significantly as the altitude increases. Information Changelog Stats Is it suspicious or odd to stand by the gate of a GA airport watching the planes? Basically I can hit a target altitude of 20,000m but can not maintain it. Note: This is ONLY to be used to report spam, advertising, and problematic (harassment, fighting, or rude) posts. KSP doesn't care (much) about aspect ratio; the total lift is the same regardless of configuration. air) that high up. 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. The easiest "default" way to build a plane in KSP-- i.e. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Why is there a voltage on my HDMI and coaxial cables? When added to a plane it allows tuning of the controls vs speed/altitude/G load/other factors. Cheers again fellas. Highest and fastest possible is best. if you just go into the SPH, slap together some parts like Legos, and go-- is to attach them with zero AoA. Your previous content has been restored. Paste as plain text instead, Clear editor. Any advices for building a vehicle for this task? 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. 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. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Slap that behind a plane you'll be able to go beyond 20km without any trouble. I should perhaps start trying out NEAR to get ready of 0.90, though. The Rapier, for example, works great as a high-altitude engine, precisely because it can go so fast. My plane has turbojets and lots of fuel, but I am wondering what the optimal way to fly is. Minimising the environmental effects of my dyson brain, Theoretically Correct vs Practical Notation. I find that a conservative amount is 2 RAM intakes and 2-4 radial intakes per turbojet. 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). 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. 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? The Kerbal Space Program subreddit. - "In Space Low" means your craft is inside the "Space Border" altitude and in an orbital path. edited 6 yr. ago. I would like to know which altitude I have to maintain for my experiments. 20 votes, 21 comments. You can post now and register later. What am I doing wrong here in the PlotLegends specification. The U-2 is probably the highest altitude aircraft still flying. Why do small African island nations perform better than African continental nations, considering democracy and human development? Clear editor. You are simply running out of atmosphere (i.e. The X-37 is operated by the United States Space Force for orbital spaceflight missions intended to demonstrate reusable space technologies. It seems to be based on the General Electric F-404 Afterburning Turbofan, which shares the same name and maximum thrust (85 kN dry). 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 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. Note that keeping the plane weight low is critical, only carry a very small amount of fuel. Pasted as rich text. 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. 3.) 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. New comments cannot be posted and votes cannot be cast. Thank you, I was able to reach up to 24km altitude with this design. - Inside the atmosphere works the same way, except you need to be on an suborbital trajectory. 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? Your decreased flight time means you probably won't make it to your location. 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. 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. The most efficient way is, of course, to make a high altitude (or space) plane. The longest flight got them down to a little more than half full. Challenges This tutorial will cover designing and flying a plane that can soar at high altitudes! Sideslip handling. From my observations I can say that "Efficiency" is not a good indicator of how well your engine performs. 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. Upload or insert images from URL. I didn't succeed with his design, though; I always ended up having somehow unstable airplanes. 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. 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. (the engines will use very little at high altitude anyway). 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!). Cookie Notice Pasted as rich text. Even up there the plane acts squirrely. Note: Your post will require moderator approval before it will be visible. This thread is quite old. That would oscillate slowly between 16000m and 17000m but was otherwise fully controllable. In KSP2, you are a rocket scientist who must build and test rockets, spaceships, and planes. At about 400-500m/s (~15km), the two engines are even. I'm trying to build a high altitude plane and have found out that the rules are different. That will probably allow you to fly comfortably above 20-25km (or higher, depending on the overall mass of your aircraft). Did any DOS compatibility layers exist for any UNIX-like systems before DOS started to become outmoded? The Rapier, for example, works great as a high-altitude engine, precisely because it can go so fast. 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. 2022 Take-Two Interactive Software, Inc. 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. 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. Your airspeed is mostly limited by terminal velocity; you can go much faster if you climb a little higher. You can do that by right-clicking the engine and clicking "Toggle Mode." The stratospheric region, where temperature rises as altitude increases, spans the region between the altitudes of 10 km and 22 km. That's all true, but just read the OP: hypersonic appears to be completely out of the question. i dont know what kind of range youre looking for but i would make a significantly smaller plane. I've added more engines, more intakes to no avail. . Under some circumstances, you may want to reduce the engine gimbal range or disable it altogether, particularly when flying at high speeds (e.g. Unfortunately, most space plane designs are impossible (or at the very least impractical) at your current tech level. principle. Right now, my big, fat plane has trouble breaking 10 km altitude and 200 m/s forward speed (largely due to its payload). 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. Press J to jump to the feed. What are the minimum altitudes for each warp level? Once it's in the air, it's stable and easy to fly and manages to fly at altitudes between 11k 12k without problems. 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 Something that I think has become less clear since someone updated the wiki. Can't remember where I saw/read about it - Scott Manley maybe? The maximum cruise altitude is just over 40,000 feet. 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. 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. Rockets aren t the only way to get to space. 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. rev2023.3.3.43278. The J-404 "Panther" Afterburning Turbofan is a jet engine added in version 1.0.5. This means it is better to have excessive amounts of oxygen than not to. 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). If your using NEAR/FAR, once you get high and fast, kill the engine and glide to save fuel. 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. Your link has been automatically embedded.
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