R.C ALLEN RCA 11A-8
The RCA-11A series of vacuum uses air driven precision gyro that controls a vertical rotating azimuth gimbal. The R.C. Allen Model RCA11A promises a long life of accurate operation even after enduring severe operating requirements because of its stainless steel wear points and aluminum die casting. RCA11A is engineered with a minimum of machined part and its full freedom design allows accurate indication. Meets, or exceeds all requirements of FAA TSO C5c and Aeronautical Standard AS397.