. . . . . . "2015-06-16 16:49:46.0" . "false" . "Sperry Marine MK37 gyro" . "Sperry Marine MK37 gyro"@en . . . "2" . . "A family of instruments that contains a controlled gyroscope which seeks and aligns itself with the meridian and points to true north. They use the properties of the gyroscope in combination with the rotation of the earth and the effect of gravity. The effects of varying speed and latitude are compensated for by the use of manually operated controls. Models MOD I, MOD O, MOD D, MOD D/E are all with an analog output Step or/and Syncro. MOD VT is the latest model with NMEA Data output as well."@en . . "SDN:L22::TOOL0661" . . . "SDN:L22::TOOL0661" . "2015-06-16 16:49:46.0" . "Sperry Marine MK37 series gyrocompasses"@en . . "accepted"@en . "SDN:L22::TOOL0661" . . "2" . . . . . . . . . .