The RCA-11A series of vacuum directional gyros utilizes an air driven precision gyro that controls a vertical rotating azimuth gimbal. The R.C. Allen Model RCA11A has been designed to provide a long life of accurate operation even when subjected to severe operating requirements. This instrument is engineered with a minimum of machined parts, providing lower initial cost and lower maintenance cost throughout its lifetime. The RCA11A is non-tumbling within +85° limits in pitch and roll and can be easily installed in any 3 1/8″ panel cut out. Full freedom design allows accurate indication, even after extreme maneuvers. Stainless steel is used at wear points, with aluminum investment and die castings. A knob is provided to reset the gyro, when compared to the magnetic compass. The RCA11A-8 features our “Standard” display. This display is used on almost all of our Vacuum Directional Gyros including our Autopilot and Heading bug D.G.’s. Models with a vacuum failure flag will let you know when vacuum has dropped below 3.5 inch Hg. * A 1/4 -18 NPTF nylon tube slip fitting is recommended for vacuum hose installation. * A 1/8 - 27 NPTF nylon tube slip fitting is recommended for vacuum gauge installation. Dimensions Length: 6.7” Height: 3.4” Width: 3.4” Weight 2.3 lbs : Kelly Manufacturing
