A jet blast deflector fence comprising: - a deflecting surface, formed by a plurality of sound insulating panels; - a deflector framework comprising two structural members; a first member constituted of a plurality of vertical posts, each vertical post being fixed to a base at its lower end, and a second member comprising a plurality of rabbets, each rabbet adapted to fit into a hollow cavity of one of the sound insulating panels; the distance between two adjacent rail channels is such that it allows the insertion of one of the sound insulating panels between each pair of horizontally aligned rabbets of the two adjacent rail channels through a sliding movement; wherein, each sound insulating panel comprises: - a C-shaped sheet, with a central portion forming the front surface of the sound insulating panel, from which two lateral portions are perpendicularly projected; each of said lateral projections comprising an inner brim at an opposite end, the central portion having a perforated area; - a capsule comprising a sound insulator material, the capsule being designed to fit inside the C-shaped sheet, in the interior space defined by an inner surface of the central portion and by the lateral projections; and wherein, - the capsule has a smaller length than the length of the central portion, being centrally placed inside the C-shaped sheet in such a way to be aligned with the perforated area of the central portion and to form two hollow cavities, of the same dimension, at both ends of the C-shaped sheet; said cavities being adapted to engage with the rabbets provided in the rail channels of the deflector framework; - the capsule being adapted to be inserted and removed from the inside of the C-shaped sheet through a locking mechanism provided by the inner brims of the lateral projections; - the second member of the deflector framework is constituted of a plurality of rail channels, an upper end of each rail channel of the plurality of rail channels being fixed to an upper end of a corresponding one of the plurality of vertical posts, each rail channel projecting towards the base and comprising an equal number of rabbets, the rabbets of each rail channel being equally spaced between them and aligned horizontally in relation to the rabbets of adjacent rail channels; and - the capsule comprises a rear sheet on which the sound insulator material is installed. - a deflecting surface, formed by a plurality of sound insulating panels; - a deflector framework comprising two structural members; a first member constituted of a plurality of vertical posts, each vertical post being fixed to a base at its lower end, and a second member comprising a plurality of rabbets, each rabbet adapted to fit into a hollow cavity of one of the sound insulating panels; the distance between two adjacent rail channels is such that it allows the insertion of one of the sound insulating panels between each pair of horizontally aligned rabbets of the two adjacent rail channels through a sliding movement; wherein, each sound insulating panel comprises: a first member constituted of a plurality of vertical posts, each vertical post being fixed to a base at its lower end, and a second member comprising a plurality of rabbets, each rabbet adapted to fit into a hollow cavity of one of the sound insulating panels; the distance between two adjacent rail channels is such that it allows the insertion of one of the sound insulating panels between each pair of horizontally aligned rabbets of the two adjacent rail channels through a sliding movement; wherein, each sound insulating panel comprises: - a C-shaped sheet, with a central portion forming the front surface of the sound insulating panel, from which two lateral portions are perpendicularly projected; each of said lateral projections comprising an inner brim at an opposite end, the central portion having a perforated area; - a capsule comprising a sound insulator material, the capsule being designed to fit inside the C-shaped sheet, in the interior space defined by an inner surface of the central portion and by the lateral projections; and wherein, - the capsule has a smaller length than the length of the central portion, being centrally placed inside the C-shaped sheet in such a way to be aligned with the perforated area of the central portion and to form two hollow cavities, of the same dimension, at both ends of the C-shaped sheet; said cavities being adapted to engage with the rabbets provided in the rail channels of the deflector framework; - the capsule being adapted to be inserted and removed from the inside of the C-shaped sheet through a locking mechanism provided by the inner brims of the lateral projections; - the second member of the deflector framework is constituted of a plurality of rail channels, an upper end of each rail channel of the plurality of rail channels being fixed to an upper end of a corresponding one of the plurality of vertical posts, each rail channel projecting towards the base and comprising an equal number of rabbets, the rabbets of each rail channel being equally spaced between them and aligned horizontally in relation to the rabbets of adjacent rail channels; and - the capsule comprises a rear sheet on which the sound insulator material is installed.