![]() Connect the side fuel tanks so with fuel lines so that fuel can flow in both directions. Now that your CoM is pretty well defined add the rear landing gear slightly behind the CoM and your front landing gear wherever you want (within reason). Add struts between the main fuselage and the side fuel tanks. Once you have the wings in the proper place add struts to strengthen them. Don't be afraid to move the side fuel tanks to get your wings into a better position. You generally want a CoL that is slightly behind the CoM which should be fairly easy with this design, but can take some fine tuning. Add in the vertical stabilizer/rudder ( Small Delta Wing, Elevon 2) and the RCS thrusters. Add fuel tanks on the side and the R.A.P.I.E.R. rocket mode to give us a boost before relying on the LV-N alone. 1 LV-N Atomic Rocket Motor gives this a very low thrust to weight ratio, too low to get all the way into orbit when the airbreathing mode of the R.A.P.I.E.R. Disable the Mk2 Liquid Fuel Fuselage Short so that we have a large thermal mass attached to the LV-N Atomic Rocket Motor to absorb heat at least until we need the fuel. The service bay protects the thermally sensitive RTG and batteries. Build out the main fuselage ( Mk1 Inline Cockpit, Mk2 to 1.25m Adapter Long, Mk2 Liquid Fuel Fuselage, Mk2 Liquid Fuel Fuselage Short, and LV-N Atomic Rocket Motor) and forward utilities ( Service Bay (1.25m), Clamp-O-Tron Shielded Docking Port). There is an added benefit that when flight testing your plane you don't have to risk a kerbal in an unproven spaceplane. This will be a manned spaceplane, but I always put a probe core on my craft so I retain control when on EVA. Start with the RC-001S Remote Guidance Unit. ![]() Toggle Air Intakes and Switch Mode for the R.A.P.I.E.R.1x PB-NUK Radioisotope Thermoelectric Generator.A pure liquid fueled SSTO is possible, but thus far every design I've come up with has had a very limited Δv. There is a small amount of oxidizer used to boost us into orbit of Kerbin. It is mostly liquid fuel since both airbreathing engines and LV-N Atomic Rocket Motors use just liquid fuel. With the exception of some of the struts every part of the plane is visible and I've tried to capture enough angles to make this build-able from the pictures. This spaceplane is designed for long-range, decent flight characteristics, and fuel efficiency. This tutorial does include a specific plane, but it is included more as a reference and there is enough room to customize it to your needs. Everyone will pick a slightly different balance of aerodynamic characteristics so you'll often find different guides give you contradictory advice, which is why I prefer guides that focus on how choices affect aerodynamic characteristics over those that build a specific plane. Building a spaceplane is an exercise in compromise and balance, for instance a stable plane will generally be less maneuverable, so there is no one guide that will fit every need. They explain the effects of design decisions better than I could and are excellent guides to putting together a spaceplane without focusing on a specific design. ![]() I'm including a fully designed spaceplane for this tutorial, but feel free to use your own, or to customize the one provided.īefore assembling the plane I recommend reading keptin's aircraft design forum post or Scott Manley's aerodynamics tutorial video. A spaceplane which will land on Laythe and a range extension fuel tank so we can make it to Laythe and back. There will be two space craft used for this tutorial. Once we are in space this tutorial can be applied just as easily to a rocket as to a spaceplane. ![]() This tutorial is designed to maximize fuel efficiency both in the air (by using jet engines and wings) and in space (using a highly efficient rocket). Laythe is the only body other than Kerbin where jet engines will operate, so it is a natural target for spaceplane missions. Take a Spaceplane to Laythe (and Back) Specifications 1 Take a Spaceplane to Laythe (and Back). ![]()
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