Fiber-reinforced resin molded body and production method thereof, fiber-reinforced resin molding prepreg, fiber-reinforced molded body and production method of fiber-reinforced molded body and resin sheet, fiber-reinforced sandwich composite, and production method of fiberreinforced molded body

A vehicle or an airframe comprising a fiber-reinforced resin molded body obtained by heat-compressing a fiber substrate together with a thermosetting resin so that the thermosetting resin is impregnated into the fiber substrate and cured, wherein

• the thermosetting resin cured is obtained by melting a powder of the thermosetting resin disposed in contact with the fiber substrate and curing the thermosetting resin during the heat compression, and
• any one of the following (1) to (5) is satisfied:
• (1) the fiber-reinforced resin molded body has a flexural strength (JIS K 7074 A method) of 450 MPa or more;
• (2) the fiber substrate includes a basalt fiber;
• (3) the thermosetting resin includes a cyanate resin;
• (4) a value of (Tb−Ta) of the thermosetting resin satisfies
• 30≤(Tb−Ta)≤100,
• wherein a melting start temperature of the thermosetting resin is Ta° C. and a curing reaction start temperature of the thermosetting resin is Tb° C.;
• and
• (5) the melting start temperature Ta° C. of the thermosetting resin is 60 to 100° C.