This is always my strategy for building planes (although sometimes things go horribly wrong for a different reason.) Not so with VTOLs: if the CoM shifts, you're not going to be able to land vertically anymore. If I'm running something with a long delta-wing layout, I'll then use canards and have the dynamic instability to allow for manouvering; if it's something without a lot of pitch inertia, I'll go tail stabilizer. 3. Before building planes though, there are some inportant things to know. But it flies horribly, it's all over the place even with SAS on it doesn't fly even remotely stable. I didn't try for 20000m as it probably wouldn't do well. To do this, take a few barrels of your jet fuel, stick them on the back of your aircraft. This guide will show how to make simple-ish planes and other aerodynamic tips. Paste as plain text instead, Your link has been automatically embedded. and our Can you check what happens if you increase the tail size to pull the center of drag back? TO achieve the easisest way to balance the fuel tanks i never put usable fuel tank in where i cant move ti easily eg. You should talk about the rocket engine's dV (approx., since not all users use Mechjeb or any other mod capable of showing dV for a given engine and tank). The downside is that it isn't as pretty, but it *does* top out at mach 1.8 with a humble wheesly. For your first flight, it may be easiest to ignore yaw altogether and just maneuver by rolling slightly and pitching. Thanks for any answers! that being said, one thing I noticed is that you said the whiplash is for SSTOs, this isn't true, it's used for high speed atmospheric flight, it doesn't have a closed cycle mode, so it can't be used to complete an orbital trajectory. Ill link it if interested. We look at the principles behind designing a basic jet. This would certainly have to be revised once Breaking Ground drops, those parts are extremely relevant for VTOL. Throttle up to full, activate SAS, stage to start the engine (you'll only have one stage here), and start rolling (or sliding) down the runway! http://kerbalspaceprogram.com. 1. For all your gaming related, space exploration needs. Unfortunately, with only these basic parts, landing on the runway won't be easy; a viable alternative is to throttle down to nothing, then belly-flop in the ocean. Before you can make a successful plane, you must understand what makes a plane go in places other than the ground - the wings. E.g. RCS will get the job done nicely, and looks cool to boot. The hoverjets are housed in the big wing-mounted pods. Thanks to this guide I did my first ever landing on the VAB helipad! Additionally if you have any off-center fuel tanks, double check the fuel is drawn from both at the same rate (same priority). NEVER go forwards, causing the aircraft to crash itself. Also: high proportion of lifting surfaces to non-lifting surfaces. Part of the reason I like the standard canards so much, though, is because they're an all-moving surface, which means you get the maximum possible profile changes with your commands. Turns out it was wheel positioning! Thank you and happy landings. And above all: have fun! This item has been removed from the community because it violates Steam Community & Content Guidelines. You know you don't have enough if you're getting engine flame-outs on take-off or, worse, landing. You can also use fine controls with the Caps key, or change control surface sensitivity and assigned movements. The solution is to house the hoverjets in a cargo bay of some kind, with the doors opening downwards. You may need to add several on bigger craft. @gokcet @DANKTER I usually run my front wheel override friction on 0.3 when the front gear has steering disabled, it needs lower friction. Paint a picture in that little head of yours, imagine that the Mass was in the back, when you stall it, it will ALWAYS fall backwards and. All rights reserved. Because they're fun and educational and you can. You can post now and register later. Simply changing the intakes made it fly completely out of control and impossible to land. Unexpected uint64 behaviour 0xFFFF'FFFF'FFFF'FFFF - 1 = 0? They sometimes coincide with elevators. They have in common that it's easy to tweak the balance by moving things around, rather than having to add or remove pieces. Why don't we use the 7805 for car phone chargers? Another way to manage this is to mount your wings above your CoM. You are simply running out of atmosphere (i.e. You need enough intakes to keep them fed. The Center of Gravity is ALWAYS above Center of Lift. One challenge I've run into for myself with more elegant VTOL SSTOs is low-speed-hover controllability; beyond using brute-force RCS or SAS. Always look at your aircraft from a 90* angle on the side. You can park a ship into an elliptical . Of course the cargo capacity is less than with a HTOL since you're using some of it to haul those vertical thrusters. Hit the launch button and watch your magnificent bird fly! May 19, 2013 in KSP1 Tutorials. (as in, like 45 degrees) usually resulting in the plane exploding. The Cyclone uses Aerospikes for propulsion. The absurdly big wing and control surfaces make it highly economical for high-altitude supercruising. But they are tons of fun both to design and to fly, which for me is kind of the point of KSP. Please see the. 4. Regular HTOL aircraft can afford to be a bit sloppy with this because aerodynamic forces will effectively obliterate moderate shifts in CoM -- if your plane gets a bit more tail-happy as the tanks drain it's no problem, as long as your CoM stays ahead of your CoL. Mostly anyway. For the vertical engines, do you also need to have some verticalintakes? Any plane needs speed - so you need thrust (usually). What are the arguments for/against anonymous authorship of the Gospels. Connect and share knowledge within a single location that is structured and easy to search. Why did DOS-based Windows require HIMEM.SYS to boot? I also had problems with a high altitude plane until I decided to follow the K.I.S.S. Mount your rear wheels out on the wings for better stability. What is this brick with a round back and a stud on the side used for? I haven't encountered oscillations like that in an airplane but I have encountered them aplenty in case of lightweight probes that have too strong control authority - too good RCS or reaction wheels, so I suspect the source here is the same. Also, make sure you read this slowly, some of this stuff may be confusing, but, if you read carefully, I will help you out with what everything means. Can you check what happens if you swap in larger gear? Unless you are using canards (not ideal for lots of reasons, IMHO), adding elevons will pull the CoL backwards since they also provide lift in their neutral position. However, don't put any fuel tanks on it yet, and empty any fuel-containing parts that you are using. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. There are some really useful tidbits here which deserve some credit. Arqade is a question and answer site for passionate videogamers on all platforms. If you're going for full VTOL you need to have a TWR > 1.0 at take-off weight; adding more vertical engines will make vertical landings easier and (if they're air-breathers) will make it possible to operate at higher elevations. (The spacing of COM and COL in your second picture is about right.) We're also not discussing helicopters here, because stock kerbals have not invented the propeller, and stock propellers are a whole big topic of their own. Clear editor. It flames out at 25,000. Your link has been automatically embedded. First, @TheEnvironmentalist There is one more method I'm sure would work in your case, although I didn't write about it because I think it's, Hahaha absolutely right, but distinctly less satisfying. Whether VTOL craft arepracticalor efficientcompared to other solutions is a different matter -- and to be perfectly honest, I'm inclined to think not really. One point I would mention is that the more wing area you have relative to your control surfaces, the less angle of attack you can generate. Hi all so I accepted a contract to do temp scans on Kerbin and guessed a plane was the right way to do it so I made this. SAS sees this and turns the other way, which just causes the same problem in the other direction. The two engines have been mounted every imaginable way with the same result: Over the wings, on the fuselage, on girder segments, on the wingtips, etc. Intriguingly, there is one thing I've found that does prevent the wobble from starting, and that is to use a single engine mounted directly on the back of the fuselage, which prevents using a tail and is ultimately a fairly significant restriction to build around. Starting from something with MK3 hull without experience in MK1 will be an uphill battle. Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI, Screenshot of the Week #89 [Submissions Closed, Vote Now!]. I'm finding it quite surprising you didn't manage to get the plane to fly yet. by fixing the suspension issues the need to sacrifice traction, and in turn, braking power, is not needed. Except for the parts regarding drag and number of intakes, everything else is still very valid. Powered by Invision Community. 5. With a decent lever arm to work with you can be both perfectly stable in level flight and very agile in pitch and yaw controls. The Panther engine can hold 19,000 steady and oscillates around 20,000. 2023 Take-Two Interactive Software, Inc. Then go into the move part thing with the "2" key in the editor, remove the degree setting, and then drag them apart manually and position parts with fine tuning that way. I've spent some time scouring the internet for ways of solving this problem, and found a number of pieces of advice on preventing wobble and improving planes in general, some of which made it into the above list, but Valentina's still dying, and I'm tired of Kerbal funerals. You might still be able to turn very quickly, but if you don't have enough wing you won't drag your velocity vector with you, which means you force your wings into a stall and bleed energy in a hurry (and can also lose control, depending). Note: This is ONLY to be used to report spam, advertising, and problematic (harassment, fighting, or rude) posts. So thanks for the pointers - I'll take a look (and try to cure my prejudice re canards). If the fuel flows from the. People put waaaaaaaaay too many control surfaces on things from a lot of the screenshots I see. Powered by Invision Community. Use Pilot Assistant - it's SAS is meant for aircraft rather than general ( read: rocket ) use. That SAS can hold a craft stable doesn't mean it's a stable craft. You've landed. Now for wings, the "Wing Connector Type B" is the largest you have so far; connect a set of those where the centre of mass is. It uses six Mk 1 utility bay-mounted Junos for hovering. The twin-boom design is one of my favourites, largely because it looks cool. For more information, please see our Just like with rockets, get some courageous Kerbal in the cockpit and let's get started! Your previous content has been restored. what do you mean by "wheels are mounted with angle snapping"? The BAK Zephyr, a rocket-powered VTOL craft designed for conducting science missions on Duna. Your plane will be slow and have limited range, or you'll have to make it a lot bigger to brute-force your way around that limitation. You've just unlocked "Aviation" tech, you have a bunch of contracts that require you to stay at low altitude, and you want to build your first plane? - but they were talking about having two intakes/engine. 2023 Take-Two Interactive Software, Inc. Now put on center of mass and center of lift view, and move the delta wings until the center of lift is slightly behind of the center of mass - not in front, otherwise your aircraft will be able to easily flip out of control. 3. I'd start with a lawn arrow that can be hardly pulled up, horrible to maneuver, with CoL way behind, but rock-stable. 2023 Take-Two Interactive Software, Inc.
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