Learn more about Stack Overflow the company, and our products. Display as a link instead, if you just go into the SPH, slap together some parts like Legos, and go-- is to attach them with zero AoA. Is it possible to get to an altitude of 16-20km with normal plane engines? 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. But you'll need to unlock: High Altitude Flight Which cost 300 science. 2022 Take-Two Interactive Software, Inc. Immediately starting rocket engines at full throttle turned out to make most of my aircrafts totally unstable, turning them up gradually worked way better. Any of my search term words; All of my search term words; Find results in. 2022 Take-Two Interactive Software, Inc. 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. This makes jets built using this engine considerably more maneuverable. If it's below the cross-hairs, you need a little more AoA. If you have an account, sign in now to post with your account. The Panther engine can hold 19,000 steady and oscillates around 20,000. 20 votes, 21 comments. Content titles and body; Content titles only It was meant for low altitude flight. Use the reaction wheel to hold your attitude slightly nose down as you float down and you can guide yourself like a paraglider. 1 Pod outside the level 3 VAB. The longest flight got them down to a little more than half full. If not, please explain why, which I know you have no problem doing! 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. i recently used a single whiplash plane and was able to maintain a stable 21-22k meter altitude. It'll probably be more efficient with more intakes, but I wouldn't increase the number of engines. It is boosted into space by a launch vehicle, then re-enters Earth's atmosphere and lands as a spaceplane. When added to a plane it allows tuning of the controls vs speed/altitude/G load/other factors. Clear editor. Sustained flight at over 20km requires at a minimum the Panther in Afterburning mode. ksp high altitude planebad bunny tour 2022 tickets ksp high altitude plane. You can spin around the whole world on just fumes. If it's below the cross-hairs, you need a little more AoA. All other versions are slower and lower and unstable in turns. The Rapier, for example, works great as a high-altitude engine, precisely because it can go so fast. First is thrust; the higher you get, the lower the thrust your engines deliver. You can post now and register later. Imagine that first plane but with the bubble cockpit and the old style round intakes. 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. Once you're at that regime, you should be able to cover huge distances on tiny amounts of fuel. The high performance engine for me performs pretty good till about 15000 meter. This works, but it's not optimal. How do I install mods for Kerbal Space Program 1.1? You can post now and register later. 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? If your using NEAR/FAR, once you get high and fast, kill the engine and glide to save fuel. Powered by Invision Community. I didn't try for 20000m as it probably wouldn't do well. 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. Which lets you go faster, which lets you climb higher. But you'll need to unlock: Which cost 300 science. Cheers again fellas. And it's stock, unfortunately. 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. 101 kPa 1 atm Scale Height 5000 m Atmospheric Height 69 077.553 m 1.010-6 atm Minimum Temprature -40.19 C 232.96 K Maximum Temprature 20 C 293.15 K Oxygen Present Yes Contents 1 Kerbin 2 Topography 3 Kerbal Space Center 4 Atmosphere 4.1 The Troposphere 4.2 The Stratosphere 4.3 The Thermosphere 4.4 The Exosphere 5 The Kerbin System 5.1 The Mun : : . Pretty often, the tail "wiggled" and/or the plane became totally unstable when I fired the rocket boosters. 600+ m/s) and low altitudes (e.g. I don't have the numbers handy, but you can expect something like 400m/s at 15km. With only panthers unlocked I might add. 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. In the stock atmosphere, the benefits of moving faster outweigh almost everything else. Be aware that heat buildup can gradually become a problem when the afterburners are used in sustained flight. TLDR: You need parts you don't have to make a plane that flies that high. even stranger is that the surface is textured. Don't worry about Isp. 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. *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. The most obvious solution is try and optimize your craft for high altitude lift by giving it long wingspan like a U-2 spyplane. Clear editor. Grichmann's answer has been the most reliable way I've found to complete these missions. 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. If you have an account, sign in now to post with your account. How can I make money in the new career mode? Running the 60U engine at about 40U seems to give me a good balance between reduced drag and air intake. 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. Even if the air is thin, you can still put out plenty of power if you are shoving enough in with raw speed. - Inside the atmosphere works the same way, except you need to be on an suborbital trajectory. I wasn't expecting so many excellent answers! 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. New comments cannot be posted and votes cannot be cast. What's the difference between a power rail and a signal line? Note: Your post will require moderator approval before it will be visible. Building a High Altitude Jet | Stream pt. (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. 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). Then I increase throttle until about 2/3 or even full, climbing with a high inclination (it can also go straight up). Thankyou all, I now reckon I have a much better understanding of the engines, hopefully that'll translate to better aircraft. . I don't have that other stuff yet. 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. As has been said, ISP is nothing to worry about. Display as a link instead, 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. Editing Kerbal Space Program save files for KSO, Rasterpropmonitor for Kerbal Space Program. In KSP2, you are a rocket scientist who must build and test rockets, spaceships, and planes. Unfortunately, most space plane designs are impossible (or at the very least impractical) at your current tech level. This means that the only thing that decides wheter your engines run efficient is determined by how much thrust they produce (opt. You can go above 20km with the J-404 Panther. The maximum cruise altitude is just over 40,000 feet. EDIT: Essentially, make like an SR-71, if an SR-71 didn't have cooling problems limiting it to Mach 3.4. The other one I stay around 6000 meters. 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. Your decreased flight time means you probably won't make it to your location. Do plugins for Kerbal Space Program work on unix? As long as the engine gets enough air it will work at proper efficiency. I find that a conservative amount is 2 RAM intakes and 2-4 radial intakes per turbojet. Range with this method is pretty short due to drag. But a rockets can do it. Basically you just need to fiddle with it and try some test flights. What are the altitudes for the various altitude record contracts? Incidentally, for these speeds and altitudes, ordinary jets are the better choice. Are you using Stock or NEAR/FAR? You could try combining the two. Evidence. Air temperatures vary with latitude and time of day. For all your gaming related, space exploration needs. All rights reserved. 3x06: I design a new, high altitude, jet to collect high. 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, 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? 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. Is it correct to use "the" before "materials used in making buildings are"? 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 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. EDIT: Didn't notice you were using FAR. This thread is quite old. You need to do it with what you've got. I was hoping that the new intakes would give it the added altitude. Thanks for asking this, I've been struggling with the same problem in career mode. 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. The stratospheric region, where temperature rises as altitude increases, spans the region between the altitudes of 10 km and 22 km. 2.) 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. 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. I followed a similar strategy. Let me share what I know about jet engines, speed, and efficiency. Each stage of the rocket has a delta-v that depends on the stage fuel mass and the engine specific impulse. That annoys me but I can't seem to get a design to make it work. The J-404 "Panther" Afterburning Turbofan is a jet engine added in version 1.0.5. AoA itself refers to the angle of the wing (or the whole plane if the AoI is 0)relative to the airflow. That will probably allow you to fly comfortably above 20-25km (or higher, depending on the overall mass of your aircraft). Pasted as rich text. Jets drop thrust at higher altitude and speed, but also drop . Or it can supercruise at three times the speed of an equivalent Wheesley jet (with nearly equal fuel efficiency) at 15,000 m altitude. Note: Your post will require moderator approval before it will be visible. Only the fuel tanks attached to rockets have any oxidiser in them. Your link has been automatically embedded. How do I align things in the following tabular environment? Is it even possible? Now I have a plane that will fly around the world at an altitude of the low-20s. 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. Welcome to the forums. I also set it to enable the cockpit's reaction wheels to improve control at high altitude, and close air intakes to reduce drag. I tried building a plane but can't climb higher than about 11,000m (I don't have many plane parts yet, though). 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. Yes. - "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. If you enter the Mun's SOI, it immediately counts as "In Space High over Mun" until you get below 60km Mun altitude. This is my current best hi alt plane. 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. edited 6 yr. ago. Upload or insert images from URL. 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. If you have an account, sign in now to post with your account. They will someday, but they don't now. AoA and G-force moderation. Here's my example of dealing with the situation. For comparison, the second most maneuverable engine is the CR-7 R.A.P.I.E.R. 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 Sideslip handling. 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. - Spamming airintakes didn't help. Double your speed, you need twice as much fuel. 2022 Take-Two Interactive Software, Inc. - Insane lift to weight didn't help. 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. 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. 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. Anyway thanks in advance. As you found out, it basically konks out at 15km. Note that keeping the plane weight low is critical, only carry a very small amount of fuel. 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.
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