RC ALLEN VACUUM ATTITUDE INDICATOR RCA22-11F

RC Allen Vacuum Attitude Indicator RCA22-11F. The RC Allen RCA22-11F vacuum artificial horizon is an air driven precision gyro which presents the pilot with pitch and roll information. Designed with a color scheme of blue sky and brown ground to present a realistic spherical display of flight. The Lighted RCA22-11F has a fixed pointer, and is equipped with a flag. R.C. Allen vacuum gyros run off of 4.5 inch Hg, erect time is 3 min, and fits in a standard 3 1/8 panel cutout. A ¼ -18 NPTF nylon tube slip fitting should be used for vacuum hose installation, while the A 1/8 – 27 NPTF nylon tube slip fitting is used for vacuum gauge installation.