Electra aircraft, 1973

(1725) Electra modification, January 29, 1973, photographed by: Norm Zrubek; (1738) Electra data management system, February 13, 1973; (1742) Electra modification, February 16, 1973, photographed by: Norm Zrubek; (1750) Electra modification, February 21, 1973, photographed by: Norm Zrubek; (1817) Electra modification, April 10, 1973, photographed by: Norm Zrubek; (1826) Research equipment going on Electra, April 19, 1973; (1833C) Gust probe for Electra, April 19, 1973; (1854) Electra with noseboom, new NCAR paint job, May 11, 1973; (2025) Electra data management system, September 25, 1973; (2104C) Electra, December 4, 1973.