Saludos a todos / Hi everybody
From wikipedia:
"MiG-37 Ferret: a fictional Soviet stealth model aircraft, produced by the Testors Model Company, as a counter to the American F-19. The craft combined a faceted airframe design with cooled exhausts, and radar-absorbing skin. Purely conjectural, the design nonetheless turned out to be closer in shape to the actual F-117 Nighthawk."
List of fictional aircraft - Wikipedia