Bell 30 - pedia

modal30The Ludlum Model 30 is a versatile and lhtweht display unit intended for use with with an external detector for alpha, beta, or gamma radiation survey.Data from:Bell Aircraft since 1935 [7] Ship No.1 (cn 1) The orinal Bell 30, built with an open-frame tubular steel framework with an open cockpit and four widely splayed undercarriage legs