jettisonableadj.
/ˈdʒɛtᵻsənəbl/, /ˈdʒɛtᵻzn̩əbl/, U.S. /ˈdʒɛdəs(ə)nəb(ə)l/, /ˈdʒɛdəz(ə)nəb(ə)l/ Capable of being jettisoned from an aircraft, spacecraft, etc.
ΘΚΠ
society > travel > air or space travel > specific movements or positions of aircraft > [adjective] > capable of being jettisoned or readily detachable
jettisonable1934
1934 Shell Aviation News No. 34. 18/1 The machine..is fitted with a ‘jettisonable’ fuel tank riveted with duralumin.
1956 Spaceflight 1 24/1 The second stage..is a new rocket; the final stage and the satellite package are enclosed within its jettisonable nose.
1961 E. Brown Wings on my Sleeve x. 113 The undercarriage consisted of a retractable skid mounted on the jettisonable two-wheel chassis which was automatically dropped when the skid was retracted on take-off.
1963 A. Smith Throw out Two Hands v. 52 The balloon commander is all,..the passenger is nothing more than jettisonable ballast.
1996 R. Feldman Transportation Expressions (U.S. Dept. of Transportation) 167/1 The external load is jettisonable and is lifted free of land or water during the rotorcraft operation.
This entry has been updated (OED Third Edition, June 2011; most recently modified version published online March 2022).
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adj.1934