Ya my science level is too low for landing gears. jet engines and all those "neat" shinny stuff. I only have fuel tanks for fuel which is counter effective if you ask me - too heavy, contains oxidizer and mass is heavy as well. Looks like I'll have to do more research for my science. The science tree needs to be redone. It would make sense me to to research for a small about of points something basic for aircraft like a fuselage, jet engines, landing gears at a minimum...not 90 points ffs