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You can post now and register later. At altitude the nose goes up and down until it goes out of control. The best answers are voted up and rise to the top, Not the answer you're looking for? Strictly speaking this optimisation is unnecessary, but it can win you a bit of range. Be sure to have enough intakes (I think maximum efficiency in stock is 1 ramjet intake per ~2 tons of plane, though that is aesthetically ridiculous), and if you're still running short of intake air, you can dip down a bit to speed up and get to denser air. 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. I have enough patience to do the slow flying, but is it horribly inefficient? This means it is better to have excessive amounts of oxygen than not to. That will probably allow you to fly comfortably above 20-25km (or higher, depending on the overall mass of your aircraft). 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. I don't have that other stuff yet. That's because wings need to have some AoA to the airstream in order to generate much lift. as a rule of thumb they all lose thrust at higher altitudes and at high velocities. Your airspeed is mostly limited by terminal velocity; you can go much faster if you climb a little higher. Hopefully this will be helpful to you. But since when do Kerbals wait for ideal conditions? Should i add a larger wing area for higher lift? 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. Your engine burns the same amount of jetfuel per second regardless of how high or fast you are! The idea is to slow the plane to a stall above your landing spot the pop the parachute. 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. In the stock atmosphere, the benefits of moving faster outweigh almost everything else. Building a High Altitude Jet | Stream pt. 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). 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. I wasn't expecting so many excellent answers! 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. Grichman's answer got me in the right direction. 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. Thanks for the help! 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!). You cannot paste images directly. The benefits should be obvious. To get higher with the low tech jet engines, you need rocket assist. By climbing, you reduce drag, exponentially with altitude. Then I increase throttle until about 2/3 or even full, climbing with a high inclination (it can also go straight up). 2022 Take-Two Interactive Software, Inc. 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. below 5,000 m), since the engine's extreme maneuverability may allow the aircraft to perform turns sharply enough to break up in flight. Thankyou all, I now reckon I have a much better understanding of the engines, hopefully that'll translate to better aircraft. I should perhaps start trying out NEAR to get ready of 0.90, though. Even if the air is thin, you can still put out plenty of power if you are shoving enough in with raw speed. Even up there the plane acts squirrely. Reddit and its partners use cookies and similar technologies to provide you with a better experience. its rather flat but its a solid surface. ksp high altitude plane. How do I align things in the following tabular environment? Personally, I don't enjoy survey contracts on Kerbin. 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. Then it is "In Space Low over Mun.". Really. Press J to jump to the feed. Make sure you've angled your wings up slightly so that you provide enough lift for a 0 angle of attack at top speed. Thanks. What you should be concerned about is atmospheric drag, and that's minimized by high-altitude flight. Clear editor. Dedicated to the growth and advancement of amateur rocket scientists! I also set it to enable the cockpit's reaction wheels to improve control at high altitude, and close air intakes to reduce drag. 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. If you have an account, sign in now to post with your account. 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. The stratospheric region, where temperature rises as altitude increases, spans the region between the altitudes of 10 km and 22 km. When added to a plane it allows tuning of the controls vs speed/altitude/G load/other factors. They always seem to lose power at about 15km, but I'm wondering if there's something I can do to fix that. Immediately starting rocket engines at full throttle turned out to make most of my aircrafts totally unstable, turning them up gradually worked way better. 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. (the engines will use very little at high altitude anyway). How do I install mods for Kerbal Space Program 1.1? This way control surface max deflection can be programmed by an aircraft designer to make . Now I have a plane that will fly around the world at an altitude of the low-20s. KSP doesn't care (much) about aspect ratio; the total lift is the same regardless of configuration. 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. Slap that behind a plane you'll be able to go beyond 20km without any trouble. Please consider starting a new thread rather than reviving this one. ksp high altitude planebad bunny tour 2022 tickets ksp high altitude plane. What altitude and speed should I go? Or about the same speed but 1000 m higher. That would argue for going as high as possible, as slow as possible, but apart from drag you also have to fight gravity. You do get certain inertial and lever-arm effects, but those aren't really relevant to 'do I have enough lift to stay up'. Cheers again fellas. Don't rely on the efficiency indicator! Alternatively, you can assign the afterburner toggle (labelled "switch mode") to an action group if you wish to activate it with a hotkey. I didn't succeed with his design, though; I always ended up having somehow unstable airplanes. Or is it the same for all celestial bodies? Turbojets are so ridiculously efficient that it doesn't really matter. The other thing to bear in mind is that tuning the AoA (angle of attack) of your wings makes a difference. 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. (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. 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. 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). How do you get out of a corner when plotting yourself into a corner. I've since shaved that down more but that was by going even higher and even faster). Cookie Notice Also, Valley and Theomon fly to different corners of Kerbin and three mapping satellites are launched. Subscribe - http://www.youtube.com/c/MikeAben?sub-confirmation=1 Patreon - https://www.patreon.com/MikeAbenPatreon supporters receive early, ad-free, access to videos, kOS and craft files, and more. Discord - https://discord.gg/HTvT7dZ Making Space Home Playlist - https://www.youtube.com/playlist?list=PLB3Ia8aQsDKhqoFyoZ4d33MG7rS9KmDm_0:00 - Designing the Dudley Mk16:42 - Test Flights \u0026 Iterating13:45 - Col. Valley take the Seaplane to the Northern Ice Shelf19:30 - Launch \u0026 Insertion of the Maxwell Vb21:04 - Col. 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Challenges Do plugins for Kerbal Space Program work on unix? The U-2's published maximum altitude is somewhere above 74,000 feet. Each stage of the rocket has a delta-v that depends on the stage fuel mass and the engine specific impulse. If you upgrade to the panther (or get one on a contract) that engine can get you much higher. Is there a single-word adjective for "having exceptionally strong moral principles"? There's basically three ways to do that: lifting surfaces, thrust, and orbiting. . 2022 Take-Two Interactive Software, Inc. Make sure we're on the same page with terminology. Your link has been automatically embedded. A destructible memorial to the old Mk. Which lets you go faster, which lets you climb higher. Kerbal Space Program Jool Landing Youtube. Once you're at that regime, you should be able to cover huge distances on tiny amounts of fuel. This thread is quite old. This is particularly useful for pairs of engines, since this makes it possible to keep the thrust equal when activating the afterburners. Yes. 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. There are two factors to that: how thick the air is, how fast the ship is going. This thread is quite old. 20 votes, 21 comments. The Kerbal Space Program subreddit. 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. 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. Yes. So I'm pretty darn new to KSP, and my career has barely gotten started, and the jobs for crew observations seem to dominate Sustained flight at over 20km requires at a minimum the Panther in Afterburning mode. And it's stock, unfortunately. Air temperatures vary with latitude and time of day. Only the fuel tanks attached to rockets have any oxidiser in them. Its an approximation missing someelements. Can't remember where I saw/read about it - Scott Manley maybe? Connect and share knowledge within a single location that is structured and easy to search. More air is better. Pvt. 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 SR-71 could probably fly higher, but it isn't flying any more. 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 Information Changelog Stats As has been said, ISP is nothing to worry about. 600+ m/s) and low altitudes (e.g. Of course, this thing has very limited range, speed and acceleration because of the extra weight. 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. Using Kolmogorov complexity to measure difficulty of problems? Is anywhere a list of the altitude levels (I don't know a better term) available? Content titles and body; Content titles only I tried building a plane but can't climb higher than about 11,000m (I don't have many plane parts yet, though). Keep in mind that wheesley engine's performance decreases significantly as the altitude increases. The Inland Kerbal Space Center itself, being in effect the old Kerbal Space Center from 0.2. Ep. Simply changing the intakes made it fly completely out of control and impossible to land. 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. For example, the RAPIER engine doesn't seem as the first choice as the "best" high altitude air-breathing engine but in long-distance and high-altitude challenges it is. But you'll need to unlock: High Altitude Flight Which cost 300 science. You cannot paste images directly. The X-37 is operated by the United States Space Force for orbital spaceflight missions intended to demonstrate reusable space technologies. That's sub-optimal, because having the fuselage pitched like that means it'll have more drag than it otherwise would have. Typically, I watch my Apoapsis as I boost to the high altitude, and there's enough momentum to coast to the peak before completely running out of fuel. With only panthers unlocked I might add. You'll notice that usually your prograde marker is slightly below your pitch. Air Intake: Air Intake shows the amount of force your engine uses to suck air into the turbine. "Whiplash" Turbojet. 3x06: I design a new, high altitude, jet to collect high atmospheric science. 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. The most efficient way is, of course, to make a high altitude (or space) plane. Listen to this guy, don't go much farther above 15000 with high altitude engines. 3.) 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. For all your gaming related, space exploration needs. Editing Kerbal Space Program save files for KSO, Rasterpropmonitor for Kerbal Space Program. I would like to know which altitude I have to maintain for my experiments. For more information, please see our Are you using Stock or NEAR/FAR? Maneuver node plans don't take drag into account, so you'll have to overshoot quite a bit to compensate. 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. 1.) Don't worry about Isp. I checked the wiki before I wrote my question, it seems I overread this paragraph Something that I think has become less clear since someone updated the wiki. 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). First off as of .15.1 intakes don't do anything. The returns are diminishing so eventually you will hit a ceiling. . Pasted as rich text. Here's my example of dealing with the situation. These designs are great for getting around Kerbin quickly, but without going orbital. Why is there a voltage on my HDMI and coaxial cables? This is my current best hi alt plane. 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. Grichmann's answer has been the most reliable way I've found to complete these missions. There is no such thing as "so high radar can not detect it", since radar can detect things in outer space. All rights reserved. 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. Originally posted by lord bird: yep thats right jool has a surface.