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. below 5,000 m), since the engine's extreme maneuverability may allow the aircraft to perform turns sharply enough to break up in flight. If you've attached them to your fuselage with zero AoA, what that means is that when you fly, you're going to have to have the entire plane pitched slightly above in order to generate lift. 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. Range with this method is pretty short due to drag. 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. Main goals: Auto-trimming. 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 was meant for low altitude flight. Don't rely on the efficiency indicator! This causes the body of your plane to generate additional drag. 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. You are just about at maximum speed and at the same time very close to stall speed. This is the first version. Designing a High Altitude Jet | KSP: Making Space Home You also need to be going very fast to generate adequate lift at high altitudes and unlike the real U-2, you don't need to fear about overspeeding and destroying the plane. 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. (the engines will use very little at high altitude anyway). No, I think it's correct, unless I've got a brain fart going, here. I'm going to try adding a small solid fuel rocket engine toned down to get the initial height then dump it, as well as check into that high end gear mentioned. Note that you need to activate the afterburner ("Wet Mode") manually. - Insane TWR didn't help. You could try combining the two. I generally don't fuss with AoI unless I'm making a long range cruiser. I got this game so I could over-engineer rockets, so I mostly ignore the airplanes. Its an approximation missing someelements. This tutorial will cover designing and flying a plane that can soar at high altitudes! Well, this game isn't a perfect flight simulator yet, so it will be difficult to figure out. Sideslip handling. I currently have a contract where I'm asked to take crew reports at certain spots on Kerbal at an altitude of 18,000m. GitHub - Boris-Barboris/AtmosphereAutopilot: Plugin for Kerbal Space However, it seems as if your delta wing has has more area, might that be it? How can I make money in the new career mode? : : . - but they were talking about having two intakes/engine. Connect and share knowledge within a single location that is structured and easy to search. That's because wings need to have some AoA to the airstream in order to generate much lift. 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. That will unlock: 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. Or it can supercruise at three times the speed of an equivalent Wheesley jet (with nearly equal fuel efficiency) at 15,000 m altitude. So the faster you go the higher you can fly where there is less drag. Simply changing the intakes made it fly completely out of control and impossible to land. if you just go into the SPH, slap together some parts like Legos, and go-- is to attach them with zero AoA. 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. EDIT: Essentially, make like an SR-71, if an SR-71 didn't have cooling problems limiting it to Mach 3.4. Watch out for your SAS if you're running batteries without a jet for a long time. Note: Your post will require moderator approval before it will be visible. How do I install mods for Kerbal Space Program 1.1? How do I align things in the following tabular environment? For comparison, the second most maneuverable engine is the CR-7 R.A.P.I.E.R. 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. 2.) You cannot paste images directly. Display as a link instead, I've added more engines, more intakes to no avail. Best way to get down into thicker air and land is to perform what dogfighters called a 'Split-S'. 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. Yes, although they have only been flown with nearly full tanks. Jet engine - Kerbal Space Program Wiki 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. Be aware that heat buildup can gradually become a problem when the afterburners are used in sustained flight. 4. Planes in Space - The Kerbal Player's Guide [Book] Welcome to the forums, ZDW. Unfortunately, most space plane designs are impossible (or at the very least impractical) at your current tech level. It will be expensive and time consuming. Mounting a time-limited rescue mission for kerbal inbound to Kerbin. The U-2 is probably the highest altitude aircraft still flying. I looked into the .cfg files and there are no special properties allocated to them. AoA built into the wing relative to the plane body is called the angle of incidence, just to help clear up. At 3500m, you have half the drag you'd have at the surface; at 7km, 1/4 the drag, at 10.5km, 1/8 the drag, etc. You can post now and register later. Using indicator constraint with two variables, Is there a solution to add special characters from software and how to do it. 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. That would argue for going as high as possible, as slow as possible, but apart from drag you also have to fight gravity. Redoing the align environment with a specific formatting, Trying to understand how to get this basic Fourier Series. Upload or insert images from URL. A well-designed jet with this engine and with the afterburner lit, flown properly, can momentarily climb to 30,000 m altitude. When you are surrounded by plenty of air there will of course be no need to suck in air artificially but the higher you get the less dense the air around you becomes and in order to make sure that your engines have enough oxygen to burn the fuel it needs to suck air in forcefully. Minimising the environmental effects of my dyson brain, Theoretically Correct vs Practical Notation. That's all true, but just read the OP: hypersonic appears to be completely out of the question. I wasn't expecting so many excellent answers! To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Trying to do something without the right part is long and difficult path. . Under some circumstances, you may want to reduce the engine gimbal range or disable it altogether, particularly when flying at high speeds (e.g. Listen to this guy, don't go much farther above 15000 with high altitude engines. By climbing, you reduce drag, exponentially with altitude. Press J to jump to the feed. I start with the normal jet engines (which takes almost the complete runway). 1.) 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. 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. 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. Another problem is jet engines stealing fuel from the rockets' tanks - you may want to pump the fuel manually (requires an R&D centre upgrade) or add some pipes between them. The most efficient way is, of course, to make a high altitude (or space) plane. Whiplash is the engine you would want to use on a plane meant to go 20km. 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. If you have an account, sign in now to post with your account. The more successful the flights, the more successful the space program is. Ksp engine altitudes : r/KerbalSpaceProgram - reddit Each stage of the rocket has a delta-v that depends on the stage fuel mass and the engine specific impulse. Powered by Invision Community. This thread is quite old. 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. For more information, please see our I don't have that cockpit in my career game yet, but maybe it will work with the other one. In this chapter, you ll learn about the Space Plane Hangar, a building that forms part of the Kerbal . Airplane Plus on SpaceDock Planes and Altitude differences. :: Kerbal Space Program General When added to a plane it allows tuning of the controls vs speed/altitude/G load/other factors. KSP Delta-V Calculator - KSP HOW TO CALCULATE DELTA-V Dedicated to the growth and advancement of amateur rocket scientists! Running the 60U engine at about 40U seems to give me a good balance between reduced drag and air intake. The idea is to slow the plane to a stall above your landing spot the pop the parachute. Due to the lower air pressure at higher altitudes its thrust output decreases accordingly. Will post my results. As long a you can fly faster, the lower density at altitude can be compensated for. Imagine that first plane but with the bubble cockpit and the old style round intakes. You can spin around the whole world on just fumes. You are simply running out of atmosphere (i.e. 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. Clear editor. 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. 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). 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. I only seem to be able to make planes that can fly a bit below that altitude and then temporary rise to it. Which is capable of high altitude, high speed flight. I've since shaved that down more but that was by going even higher and even faster). - "In Space Low" means your craft is inside the "Space Border" altitude and in an orbital path. [Solved] 30 20 / Let me share what I know about jet engines, speed, and efficiency. 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. ksp high altitude planebad bunny tour 2022 tickets ksp high altitude plane. Upload or insert images from URL. 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. as a rule of thumb they all lose thrust at higher altitudes and at high velocities. 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. CONTROLABLE plane for ~20km altitude? :: Kerbal Space Program General Pasted as rich text. Building a High Altitude Jet | Stream pt. 2/3 (KSP 1.11.2) So, to correct " is below crosshairs", what you need to do is to add a little AoA to the wings. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. 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. Evidence. Grichman's answer got me in the right direction. Spaceplane - Wikipedia 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. 2022 Take-Two Interactive Software, Inc. Make sure we're on the same page with terminology. Basically you just need to fiddle with it and try some test flights. Kerbal Space Program - All Easter Eggs Guide Make sure you've angled your wings up slightly so that you provide enough lift for a 0 angle of attack at top speed. 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. This is my current best hi alt plane. It flames out at 25,000. Arqade is a question and answer site for passionate videogamers on all platforms. i recently used a single whiplash plane and was able to maintain a stable 21-22k meter altitude. 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. This makes jets built using this engine considerably more maneuverable. These are the building blocks of solid spaceplane design!Subscribe! Yes, you can get into that range with the high end stuff (whiplash engines and ram or shock cone air intakes). Alternatively, you can assign the afterburner toggle (labelled "switch mode") to an action group if you wish to activate it with a hotkey. EDIT: Didn't notice you were using FAR. Thanks for the help! So I'm pretty darn new to KSP, and my career has barely gotten started, and the jobs for crew observations seem to dominate Is it correct to use "the" before "materials used in making buildings are"? 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. Did any DOS compatibility layers exist for any UNIX-like systems before DOS started to become outmoded? *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. Ep. 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. Even up there the plane acts squirrely. Now I have a plane that will fly around the world at an altitude of the low-20s. 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. This means it is better to have excessive amounts of oxygen than not to. The stratospheric region, where temperature rises as altitude increases, spans the region between the altitudes of 10 km and 22 km. When I say ", You know you've nailed it correctly if, when you're in level flight, your. Valve Corporation. It seems to be based on the General Electric F-404 Afterburning Turbofan, which shares the same name and maximum thrust (85 kN dry). Laythe - Kerbal Space Program Wiki
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