Unfortunately I won't be able to test it today, but @SaintWacko's proposal sounds promising. - Inside the atmosphere works the same way, except you need to be on an suborbital trajectory. 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 Mounting a time-limited rescue mission for kerbal inbound to Kerbin. 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. Pvt. Or try using SRBs instead. 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. The maximum cruise altitude is just over 40,000 feet. Basically I can hit a target altitude of 20,000m but can not maintain it. Its an approximation missing someelements. You can post now and register later. I'm trying to build a high altitude plane and have found out that the rules are different. How to tell which packages are held back due to phased updates. . Note that keeping the plane weight low is critical, only carry a very small amount of fuel. I got this game so I could over-engineer rockets, so I mostly ignore the airplanes. (the engines will use very little at high altitude anyway). Strictly speaking this optimisation is unnecessary, but it can win you a bit of range. The Inland Kerbal Space Center itself, being in effect the old Kerbal Space Center from 0.2. You will find that when you're flying around, will always be slightly below the crosshairs on the navball. 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. With the tanks disconnected that way, the rockets don't leach from the jets. 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. Which is capable of high altitude, high speed flight. Editing Kerbal Space Program save files for KSO, Rasterpropmonitor for Kerbal Space Program. June 3, 2022 . Highest and fastest possible is best. You are simply running out of atmosphere (i.e. 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. Thanks for asking this, I've been struggling with the same problem in career mode. You can post now and register later. Arqade is a question and answer site for passionate videogamers on all platforms. This thread is quite old. as a rule of thumb they all lose thrust at higher altitudes and at high velocities. 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. Well, this game isn't a perfect flight simulator yet, so it will be difficult to figure out. She has a horrible turn rate and oscillates a couple of thousand meters at cruise, but it's flyable. 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. @SaintWacko's advice is probably the most practical. 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. 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. 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. Trying to do something without the right part is long and difficult path. What altitude and speed should I go? If you have an account, sign in now to post with your account. Air Intake: Air Intake shows the amount of force your engine uses to suck air into the turbine. The Panther engine can hold 19,000 steady and oscillates around 20,000. How can I make money in the new career mode? If it's below the cross-hairs, you need a little more AoA. Secondly don't think of engines working better at different altitudes, think of them working better with different air intake quantities. That's all true, but just read the OP: hypersonic appears to be completely out of the question. Simply changing the intakes made it fly completely out of control and impossible to land. 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. Powered by Invision Community. Isn't that backwards snark? This is particularly useful for pairs of engines, since this makes it possible to keep the thrust equal when activating the afterburners. AoA itself refers to the angle of the wing (or the whole plane if the AoI is 0)relative to the airflow. The ideal case for optimally efficient flight (which is what you want if you're trying to maximize cruise altitude) is when your wings are mounted to the body, pitched up just enough that when cruising in level flight, the body of the aircraft is pointing perfectly . I've added more engines, more intakes to no avail. Challenges 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? Note that you need to activate the afterburner ("Wet Mode") manually. 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. Should i add a larger wing area for higher lift? It only takes a minute to sign up. 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. All rights reserved. I generally don't fuss with AoI unless I'm making a long range cruiser. How to make a loop for linear actuator in Kerbal Space Program, Breaking Ground. If it's above the cross-hairs, you need a little less. Jets drop thrust at higher altitude and speed, but also drop . From my experience using a panther it starts to lose speed after 15-16 kms, a more suitable cruising height is 9-13km. However, I've failed to build a vehicle to achieve this (without a hundred retries). "Whiplash" Turbojet. What am I doing wrong here in the PlotLegends specification. Range with this method is pretty short due to drag. Personally, I don't enjoy survey contracts on Kerbin. Thank you, I was able to reach up to 24km altitude with this design. The other thing to bear in mind is that tuning the AoA (angle of attack) of your wings makes a difference. Or it can supercruise at three times the speed of an equivalent Wheesley jet (with nearly equal fuel efficiency) at 15,000 m altitude. I also set it to enable the cockpit's reaction wheels to improve control at high altitude, and close air intakes to reduce drag. Using Kolmogorov complexity to measure difficulty of problems? 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 you'll need to unlock: Which cost 300 science. If it's below the cross-hairs, you need a little more AoA. Anyway thanks in advance. Let me share what I know about jet engines, speed, and efficiency. I'd almost expect it to work better in stock since infini-gliders can be done. Additionally please know that .16 will feature new code that will change the way space planes work in every aspect. 2022 Take-Two Interactive Software, Inc. Please consider starting a new thread rather than reviving this one. Planes in Space. It is somewhat slow but very steady in flight. 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)? Thanks for the help! Any of my search term words; All of my search term words; Find results in. First off as of .15.1 intakes don't do anything. 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. At about 400-500m/s (~15km), the two engines are even. In my case, it brought me to 20km up at a 45-degree angle, but it is probably not optimal. I currently have a contract where I'm asked to take crew reports at certain spots on Kerbal at an altitude of 18,000m. : : . even stranger is that the surface is textured. Basically there are two things that limit your maximum speed: thrust and speed of sound and with that your maximum altitude. Kerbal Space Program 2 . Yes, although they have only been flown with nearly full tanks. It'll probably be more efficient with more intakes, but I wouldn't increase the number of engines. Ep. Your link has been automatically embedded. If you have an account, sign in now to post with your account. The idea is to slow the plane to a stall above your landing spot the pop the parachute. 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?). 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. 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!]. 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. Delta-V is the velocity change necessary to perform orbital maneuvers. Aircraft can be very temperamental to fly, especially on the keyboard. Evidence. The easiest "default" way to build a plane in KSP-- i.e. 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. I don't have the numbers handy, but you can expect something like 400m/s at 15km. 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. Your airspeed is mostly limited by terminal velocity; you can go much faster if you climb a little higher. Though I'm still working on learning to be better at space planes. 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. More air is better. 3.) Or is it the same for all celestial bodies? 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. If it's above the cross-hairs, you need a little less. Is it even possible? So I'm pretty darn new to KSP, and my career has barely gotten started, and the jobs for crew observations seem to dominate Technically, any rocket engine is also a jet engine as it forms a high-speed jet of reaction mass. Press question mark to learn the rest of the keyboard shortcuts. Put a couple of radial mount parachutes just above the com and add a reaction wheel. You cannot paste images directly. . Valve Corporation. What are the units of measure used in Kerbal Space Program? They always seem to lose power at about 15km, but I'm wondering if there's something I can do to fix that. The U-2's published maximum altitude is somewhere above 74,000 feet. Create an account to follow your favorite communities and start taking part in conversations. Listen to this guy, don't go much farther above 15000 with high altitude engines. - Spamming airintakes didn't help. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Your previous content has been restored. 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. 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 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). At the equator, sea level temperatures vary between a nighttime low of 9 C and a daytime high of 15 C. The stratospheric region, where temperature rises as altitude increases, spans the region between the altitudes of 10 km and 22 km. How can this new ban on drag possibly be considered constitutional? i dont know what kind of range youre looking for but i would make a significantly smaller plane. 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. It's Kerbal Space Program v.22! principle. 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. With only panthers unlocked I might add. Imagine that first plane but with the bubble cockpit and the old style round intakes. Then I increase throttle until about 2/3 or even full, climbing with a high inclination (it can also go straight up). Don't rely on the efficiency indicator! The SR-71 could probably fly higher, but it isn't flying any more. 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. That will unlock: "Whiplash" Turbojet Which is capable of high altitude, high speed flight. Cookie Notice 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. Delta wings are able to work better since the lack of lift per square area is compensated by having larger area to provide lift. This means that the only thing that decides wheter your engines run efficient is determined by how much thrust they produce (opt. That annoys me but I can't seem to get a design to make it work. So, to correct " is below crosshairs", what you need to do is to add a little AoA to the wings. You can post now and register later. its rather flat but its a solid surface. 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. The most efficient way is, of course, to make a high altitude (or space) plane. How do I align things in the following tabular environment? Upload or insert images from URL. The Rapier, for example, works great as a high-altitude engine, precisely because it can go so fast. *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. Chapter 4. Hopefully this will be helpful to you. The X-37 is operated by the United States Space Force for orbital spaceflight missions intended to demonstrate reusable space technologies. high-2 A Screenshot of Kerbal Space Program This causes the body of your plane to generate additional drag. Hello there. What are the altitudes for the various altitude record contracts? That would oscillate slowly between 16000m and 17000m but was otherwise fully controllable. The Boeing X-37, also known as the Orbital Test Vehicle (OTV), is a reusable robotic spacecraft. Rockets aren t the only way to get to space. (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. Under some circumstances, you may want to reduce the engine gimbal range or disable it altogether, particularly when flying at high speeds (e.g. Either finish the low-altitudes and then spend all your fuel on the high-altitude boost, or do the boost first and save a little fuel or try to hit the rest through unpowered gliding. 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. 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. Press J to jump to the feed. But you'll need to unlock: High Altitude Flight Which cost 300 science. 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. The flight time won't be as long, but you'll be able to fly a "plane" above 18km. Your answer got me in the right direction, though I ended up with a different design (see my own answer). Is it possible to get to an altitude of 16-20km with normal plane engines? lost birth certificate near berlin; ksp high altitude plane. For all your gaming related, space exploration needs. Have you checked out the wiki yet? 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. 600+ m/s) and low altitudes (e.g. Which makes this engine ideal for those missions which require doing many science activities above particular altitudes. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. These are the building blocks of solid spaceplane design!Subscribe! Is anywhere a list of the altitude levels (I don't know a better term) available? The U-2 is probably the highest altitude aircraft still flying. 2.) Minimising the environmental effects of my dyson brain, Theoretically Correct vs Practical Notation. 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. Press question mark to learn the rest of the keyboard shortcuts. Privacy Policy. surface of jool. This way control surface max deflection can be programmed by an aircraft designer to make . 1 Pod outside the level 3 VAB. 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. It is boosted into space by a launch vehicle, then re-enters Earth's atmosphere and lands as a spaceplane. Why do small African island nations perform better than African continental nations, considering democracy and human development? Your decreased flight time means you probably won't make it to your location. Here's my example of dealing with the situation. Building a High Altitude Jet | Stream pt. 20 votes, 21 comments. You can do that by right-clicking the engine and clicking "Toggle Mode." 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. Thankyou all, I now reckon I have a much better understanding of the engines, hopefully that'll translate to better aircraft. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Please consider starting a new thread rather than reviving this one. Right now, my big, fat plane has trouble breaking 10 km altitude and 200 m/s forward speed (largely due to its payload). Note: Your post will require moderator approval before it will be visible. 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.
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