I don't have the numbers handy, but you can expect something like 400m/s at 15km. You can post now and register later. 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. 1.) Chapter 4.
High altitude planes - Kerbal Space Program Forums How to know if you've nailed it perfectly: when you're cruising in level flight, you want the marker to be precisely centered in your navball cross-hairs. Each stage of the rocket has a delta-v that depends on the stage fuel mass and the engine specific impulse. Mounting a time-limited rescue mission for kerbal inbound to Kerbin. It only takes a minute to sign up. Learn more about Stack Overflow the company, and our products. 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. The SR-71 could probably fly higher, but it isn't flying any more. Keep in mind that wheesley engine's performance decreases significantly as the altitude increases. Of course, this thing has very limited range, speed and acceleration because of the extra weight. 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. 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. Really. You may be correct and that 3 engine plane is a lemon.
Control Sensativty for Planes - KSP2 Suggestions and Development How do you get out of a corner when plotting yourself into a corner. 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. I've since shaved that down more but that was by going even higher and even faster).
Download (104.45 MiB) License: CC BY-NC-SA 4.0 Game Version: 1.8.1 Downloads: 371,115 Author: blackheart612 Mod Website: Forum Thread Support this mod: Donate Followers: 626 Outdated Mod This mod is not known to work with the latest version of Kerbal Space Program. as a rule of thumb they all lose thrust at higher altitudes and at high velocities. Your decreased flight time means you probably won't make it to your location. Imagine that first plane but with the bubble cockpit and the old style round intakes.
Beginner's Guide: Tips and Basics - Kerbal Space Program 2 Wiki Guide - IGN TLDR: You need parts you don't have to make a plane that flies that high. Your previous content has been restored. Do plugins for Kerbal Space Program work on unix? That's because wings need to have some AoA to the airstream in order to generate much lift. If too much air runs into the turbine, the excessive amount just flows out unused through side-vents (I think).
J-404 "Panther" Afterburning Turbofan - Kerbal Space Program Arqade is a question and answer site for passionate videogamers on all platforms. Yes, although they have only been flown with nearly full tanks. 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. It flames out at 25,000. Clear editor. Along with rockets, planes are one of KSP's most commonly referenced kinds of vessel, and are a vessel type . Challenges 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.
Why not keep the engine for multi-stage rockets? - Space Exploration AoA itself refers to the angle of the wing (or the whole plane if the AoI is 0)relative to the airflow. The other one I stay around 6000 meters. 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. 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!). Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site.
GitHub - Boris-Barboris/AtmosphereAutopilot: Plugin for Kerbal Space 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 can post now and register later. The U-2 is probably the highest altitude aircraft still flying. I find that a conservative amount is 2 RAM intakes and 2-4 radial intakes per turbojet. Even better, burn a little more, and you can pop out of the atmosphere for a bit and avoid all that nasty drag stuff.
Kerbal Space Program - Wikipedia Is anywhere a list of the altitude levels (I don't know a better term) available? I also had problems with a high altitude plane until I decided to follow the K.I.S.S. The X-37 is operated by the United States Space Force for orbital spaceflight missions intended to demonstrate reusable space technologies. Simply changing the intakes made it fly completely out of control and impossible to land. 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).
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. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Knowing how to design these types of planes make jumping in to SSTO design very easy as there are only a few minor changes that need to be made.Music Credits:1st Song: \"Elephants\" - YouTube Audio Library2nd Song: \"Hot Heat\" - YouTube Audio Library3rd Song: \"Echoes\" - Kasbo - https://soundcloud.com/k-sboWhat game is this? Turbojets are so ridiculously efficient that it doesn't really matter. Technically, any rocket engine is also a jet engine as it forms a high-speed jet of reaction mass. What are the minimum altitudes for each warp level? And how many km can I expect to get per v (as calculated by Engineer redux Kerbin atmospheric stats, I know this is weird with planes)?
KSP Quick Guides: High Altitude Design and Flying - Stock v.23 Make sure you've angled your wings up slightly so that you provide enough lift for a 0 angle of attack at top speed. - Spamming airintakes didn't help. The most obvious solution is try and optimize your craft for high altitude lift by giving it long wingspan like a U-2 spyplane. 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. Though I'm still working on learning to be better at space planes. surface of jool.
Sub-orbital spaceflight - Wikipedia TroubleshootingMechJebPVG - KSP-RO/RP-0 GitHub Wiki Rationale: If that's all a case of Too Many Words, think of it this way: Suppose you just build a plane the "default" way and don't put any AoA at all on the wings.
4. Planes in Space - The Kerbal Player's Guide [Book] Watch out for your SAS if you're running batteries without a jet for a long time.
Kerbin | Kerbal Space Program Wiki | Fandom 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. The idea is to slow the plane to a stall above your landing spot the pop the parachute. All other versions are slower and lower and unstable in turns. 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 How to make a loop for linear actuator in Kerbal Space Program, Breaking Ground. Cheers again fellas. 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.
At about 400-500m/s (~15km), the two engines are even. 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. The high performance engine for me performs pretty good till about 15000 meter. Connect and share knowledge within a single location that is structured and easy to search. This means it is better to have excessive amounts of oxygen than not to. Then I increase throttle until about 2/3 or even full, climbing with a high inclination (it can also go straight up). How can this new ban on drag possibly be considered constitutional? If not, please explain why, which I know you have no problem doing! In KSP2, you are a rocket scientist who must build and test rockets, spaceships, and planes. You'll notice that usually your prograde marker is slightly below your pitch. But you'll need to unlock: High Altitude Flight Which cost 300 science. Put a couple of radial mount parachutes just above the com and add a reaction wheel. If it's above the cross-hairs, you need a little less. Here's my example of dealing with the situation. You will find that when you're flying around, will always be slightly below the crosshairs on the navball. Paste as plain text instead, In my case, it brought me to 20km up at a 45-degree angle, but it is probably not optimal.
Building a High Altitude Jet | Stream pt. 2/3 (KSP 1.11.2) jet engine efficiency in this game is based on built in thrust curves. Well, this game isn't a perfect flight simulator yet, so it will be difficult to figure out. If you have an account, sign in now to post with your account.
KSP Career: Episode 13 - High Altitude Surveys - YouTube Even up there the plane acts squirrely. This thread is quite old. That will probably allow you to fly comfortably above 20-25km (or higher, depending on the overall mass of your aircraft). How to tell which packages are held back due to phased updates. Or about the same speed but 1000 m higher. 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. Privacy Policy. Let me share what I know about jet engines, speed, and efficiency. Once you're at that regime, you should be able to cover huge distances on tiny amounts of fuel. You need to do it with what you've got.
Most efficient cruise altitude for jet planes? : r/KerbalSpaceProgram Create an account to follow your favorite communities and start taking part in conversations. AoA built into the wing relative to the plane body is called the angle of incidence, just to help clear up. Or try using SRBs instead. 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. 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?
Designing a High Altitude Jet | KSP: Making Space Home This is my current best hi alt plane. Note: Your post will require moderator approval before it will be visible. 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. As long as the engine gets enough air it will work at proper efficiency. Kerbal Space Program 2 .
high altitude flight :: Kerbal Space Program General Discussions A well-designed jet with this engine and with the afterburner lit, flown properly, can momentarily climb to 30,000 m altitude. The best answers are voted up and rise to the top, Not the answer you're looking for? 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. Content titles and body; Content titles only Because of the exponential nature of the rocket equationthe orbital rocket needs to be considerably bigger. The flight time won't be as long, but you'll be able to fly a "plane" above 18km. Orbiting is the most fun one: the higher the orbit, the less speed you need to maintain to stay in orbit, *and* the less air there is, so that's a double-whammy in terms of reducing fuel consumption. When added to a plane it allows tuning of the controls vs speed/altitude/G load/other factors. Kerbal Space Program Jool Landing Youtube. Strictly speaking this optimisation is unnecessary, but it can win you a bit of range. The most efficient way is, of course, to make a high altitude (or space) plane. Grichman's answer got me in the right direction. Its an approximation missing someelements.
KSP - High Altitude Aircraft - YouTube 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. Note that you need to activate the afterburner ("Wet Mode") manually. - but they were talking about having two intakes/engine. Slap that behind a plane you'll be able to go beyond 20km without any trouble. That would argue for going as high as possible, as slow as possible, but apart from drag you also have to fight gravity. There is no such thing as "so high radar can not detect it", since radar can detect things in outer space. 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. I also set it to enable the cockpit's reaction wheels to improve control at high altitude, and close air intakes to reduce drag. principle. As has been said, ISP is nothing to worry about. 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. 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. Have a plane that ditches its wings and rockets up to 18km once you reach the right point. Upload or insert images from URL. Or is it the same for all celestial bodies? Pvt. So Pvt. 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. How can I make money in the new career mode? 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 You are simply running out of atmosphere (i.e. I would like to know which altitude I have to maintain for my experiments. Your link has been automatically embedded. Have you checked out the wiki yet? Your answer got me in the right direction, though I ended up with a different design (see my own answer). KSP doesn't care (much) about aspect ratio; the total lift is the same regardless of configuration. Sideslip handling. You arent doing anything wrong.
Does a plane consume more fuel if it flies at higher altitudes? 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. 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. 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 my guess is that these same general principles would probably apply to FAR, and that all that would change would be the numbers involved. Just sounds like the engines can't get enough air, in KSP high speed also generates air intake so I'm guessing what is happening is that you have the initial speed to get to altitude but the lack of air at altitude is starving the engine resulting in lower speed which further reduces air intake and it cascades until either the engine shuts down or you return to denser atmosphere at a lower altitude. Upload or insert images from URL. 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.
Satellite Launcher - Kerbal Space Program Wiki Note: Your post will require moderator approval before it will be visible. If you have an account, sign in now to post with your account. 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. 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). Your link has been automatically embedded.
Spaceplane - Wikipedia Can't remember where I saw/read about it - Scott Manley maybe? ksp high altitude planebad bunny tour 2022 tickets ksp high altitude plane. Or you need to put a little bit of angle of incidence in your wings, which will reduce drag since you don't have to pitch the entire plane up, but will be stuck at a fixed angle meaning you'll have to pitch up or down anyway during certain phases of the flight that the plane isn't optimised for. Unfortunately I won't be able to test it today, but @SaintWacko's proposal sounds promising. Personally, I don't enjoy survey contracts on Kerbin. 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. Grichmann's answer has been the most reliable way I've found to complete these missions. The longest flight got them down to a little more than half full.
Tutorial: Making the AI fly | BDArmory Wikia | Fandom As long a you can fly faster, the lower density at altitude can be compensated for. The sweet spot for the upper atmo engines, I find, is between 10k and 12k. Please consider starting a new thread rather than reviving this one. Let me. 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). Why do many companies reject expired SSL certificates as bugs in bug bounties? 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. Pasted as rich text. It'll probably be more efficient with more intakes, but I wouldn't increase the number of engines. Now I have a plane that will fly around the world at an altitude of the low-20s. The returns are diminishing so eventually you will hit a ceiling. Using indicator constraint with two variables, Is there a solution to add special characters from software and how to do it. Use the reaction wheel to hold your attitude slightly nose down as you float down and you can guide yourself like a paraglider. 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. Will post my results. So the faster you go the higher you can fly where there is less drag. 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. I start with the normal jet engines (which takes almost the complete runway). Thanks for the help! - "In Space Low" means your craft is inside the "Space Border" altitude and in an orbital path. 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. Highest and fastest possible is best. Anyway thanks in advance. 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. Which lets you go faster, which lets you climb higher. That would oscillate slowly between 16000m and 17000m but was otherwise fully controllable. If it's below the cross-hairs, you need a little more AoA. below 5,000 m), since the engine's extreme maneuverability may allow the aircraft to perform turns sharply enough to break up in flight. I've been finding it difficult to build a jet that can fly over 15km alt. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. FBW uses three controllers - pitch, roll and yaw. If you enter the Mun's SOI, it immediately counts as "In Space High over Mun" until you get below 60km Mun altitude. This thread is quite old. This causes the body of your plane to generate additional drag. The benefits should be obvious. 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. 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. 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. With only panthers unlocked I might add. They always seem to lose power at about 15km, but I'm wondering if there's something I can do to fix that.
High altitude (~20km) possible with normal plane engines? That's just a guess, though-- perhaps someone more familiar with FAR could weigh in.).
Planes and Altitude differences. :: Kerbal Space Program General 3x06: I design a new, high altitude, jet to collect high. Air Intake: Air Intake shows the amount of force your engine uses to suck air into the turbine. (Disclaimer: I've never used FAR myself; all of the above is based on my experience with stock aerodynamics. 2022 Take-Two Interactive Software, Inc. These are the building blocks of solid spaceplane design!Subscribe! 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.