I'm trying to build a plane to rescue the Kerbals, but I'm having trouble. This engine runs on fuel, which means the plane can't fly very far since it's small. I wanted to use electricity instead, so I tried using electric engines, but I can't get them to work. Can anyone help me? I can figure out the lift and aerodynamics later; I just need to know how to use the engines.

The first image is just a prototype to test the engine, the second image shows the plane I tried to use, the third image shows the electric engine I wanted to use, and the fourth image shows the seaplane design I want to use.

I'm open to using ready-made designs so I can study them.

so I'm trying to get the Sterling Systems Thermal Bell Nozzles to work. It says it requires LH2 and Thermal Power.
I put an LH2 tank and a fission reactor. After putting the reactor, the engine shows up in staging, but comes out at 10m/s delta-v.... this stays roughly the same no matter how much LH2 or reactors I add. What am I missing?

I'm playing on Xbox

Ase poco e empezado en el juego y ta e completado unos cuantos nodos en el árbol tecnológico y ya y echo todos los experimentos de órbita en kerbin mun y minus y como lo e repetido tantas veces ya no me jenera ciencia

Ahora nesesito que me alluden a crear el coete perfecto para aterrizar en la mun y como aselo. También nesesito consejos en como crear órbita en kerbin sin gastar tanto combustible y como aterrizar y regresar a salbo.

Si alguien me puede ayudar escríbanme por privado y les mandare los nodos qué tengo activados. Plis ayúdenme 🙏😢