Abrégé

The invention concerns a timepiece (1) with an integrated true airspeed indicator, which comprises a case that is closed by a glass (5) and formed of a back cover (2) and a middle part (3); a time display (6); a bezel (7) comprising a rotatable part (8) with a circular first edge (9); a time keeping circuit (10) controlling the time display (6); and at least one energy source (11) powering the time-keeping circuit (10). One preferred embodiment of the timepiece according to the invention is characterized in that the bezel (7) comprises Indicated Air Speed (K. I. A. S.) marks and Flight Level (F. L.) marks that are in each case directed radial to the first edge (9) of the rotatable part (8) of the bezel (7) and that are diametrically opposed to each other. The inventive timepiece (1) comprises an indicator ring (12) with a circular first edge (13) that is concentrically arranged with and that is located close to the first edge (9) of the rotatable part (8) of the bezel (7). The fixed indicator ring (12) comprises Flight Level (F. L.) marks and Knots True Air Speed (K. T. A. S.) marks that are in each case directed radial to the first edge ( 13) of the indicator ring (12) and that are diametrically opposed to each other in such a way that the (K. I. A. S.) marks of the rotatable part (8) of the bezel (7) are located opposite the (F. L.) marks of the indicator ring (12) and that the (F. L.) marks of the rotatable part (8) of the bezel (7) are located opposite the (K. T. A. S.) marks of the indicator ring (12). Also disclosed are uses of the inventive timepiece for estimating the true airspeed of an aircraft.

Classes IPC  ?

• G04B 47/06 - Appareils à évaluer le temps combinés avec d'autres articles n'influant pas sur leur marche ou leur régularité combinés avec des instruments de mesure, p. ex. podomètre, baromètre, thermomètre, boussole
• G06G 1/00 - Dispositifs de calcul manipulés manuellement

Abrégé

The invention concerns a timepiece (1) with an integrated true airspeed indicator, which comprises a case that is closed by a glass (5) and formed of a back cover (2) and a middle part (3); a time display (6); a bezel (7) comprising a rotatable part (8) with a circular first edge (9); a time keeping circuit (10) controlling the time display (6); and at least one energy source (11) powering the time-keeping circuit (10). One preferred embodiment of the timepiece according to the invention is characterized in that the bezel (7) comprises Flight Level (F.L.) marks and Mach Number (MACH) marks that are in each case directed radial to the first edge (9) of the rotatable part (8) of the bezel (7) and that are diametrically opposed to each other. The inventive timepiece (1) comprises an indicator ring (12) with a circular first edge (13) that is concentrically arranged with and that is located close to the first edge (9) of the rotatable part (8) of the bezel (7). The fixed indicator ring (12) comprises True Air Speed (K.T.A.S.) marks and Flight Level (F.L.) marks that are in each case directed radial to the first edge (13) of the indicator ring (12) and that are diametrically opposed to each other in such a way that the (F.L.) marks of the rotatable part (8) of the bezel (7) are located opposite the (K.T.A.S.) marks of the indicator ring (12) and that the (MACH NUMBER) marks of the rotatable part (8) of the bezel (7) are located opposite the (F.L.) marks of the indicator ring (12). Also disclosed are uses of the inventive timepiece for estimating the Mach number of an aircraft.

Classes IPC  ?

• G04B 47/06 - Appareils à évaluer le temps combinés avec d'autres articles n'influant pas sur leur marche ou leur régularité combinés avec des instruments de mesure, p. ex. podomètre, baromètre, thermomètre, boussole
• G06G 1/00 - Dispositifs de calcul manipulés manuellement

Abrégé

The invention concerns a timepiece (1) with an integrated density altitude indicator, which comprises a case that is closed by a glass (5) and formed of a back cover (2) and a middle part (3); a time display (6); a bezel (7) comprising a ro- tatable part (8) with a circular first edge (9); a time keeping circuit (10) controlling the time display (6); and at least one energy source (11) powering the time-keeping circuit (10). One preferred embodiment of the timepiece according to the invention is characterized in that the bezel (7) comprises field elevation (ELEVATION) marks and Outside Air Temperature (O.A.T.) marks that are in each case directed radial to the first edge (9) of the rotatable part (8) of the bezel (7) and that are diametrically opposed to each other. The inventive timepiece (1) comprises an indicator ring (12) with a circular first edge (13) that is concentrically arranged with and that is located close to the first edge (9) of the rotatable part (8) of the bezel (7). The fixed indicator ring (12) comprises Outside Air Temperature (O.A.T.) marks and density altitude (DENSITY AIt.) marks that are in each case directed radial to the first edge (13) of the indicator ring (12) and that are diametrically opposed to each other in such a way that the (ELEVATION) marks of the rotatable part (8) of the bezel (7) are located opposite the (O.A.T.) marks of the indicator ring (12) and that the (O.A.T.) marks of the rotatable part (8) of the bezel (7) are located opposite the (DENSITY Alt.) marks of the indicator ring (12). Also disclosed are uses of the inventive timepiece for estimating the density altitude of an air field.

Classes IPC  ?

• G04G 21/02 - Détecteurs de valeurs physiques externes, p. ex. de température
• G06G 1/00 - Dispositifs de calcul manipulés manuellement
• G04B 47/06 - Appareils à évaluer le temps combinés avec d'autres articles n'influant pas sur leur marche ou leur régularité combinés avec des instruments de mesure, p. ex. podomètre, baromètre, thermomètre, boussole
• G01C 5/06 - Mesure des hauteursMesure des distances transversales par rapport à la ligne de viséeNivellement entre des points séparésNiveaux à lunette en utilisant des moyens barométriques