\'Operation Latchkey' was a series of twenty-seven nuclear test explosions conducted in 1966 and 67 at the Nevada Test Site (with one exception).

These tests followed the Flintlock series and were in turn followed by Crosstie. The individual explosions were:

Latchkey Test Blasts
Test Name Date Location Yield Note

"Saxon"28 July, 1966Nevada Test Site<20 kilotonsOperation Plowshare
"Rovena"10 August, 1966Nevada Test Site<20 kilotons 
"Derringer"9 September, 1966Nevada Test Siteabout 12 kilotons 
"Daiquiri"23 September, 1966Nevada Test Site<20 kilotons 
"Newark"26 September 1966Nevada Test Site<20 kilotons 
"Simms"5 November 1966Nevada Test Site<20 kilotonsOperation Plowshare
"Ajax"11 November 1966Nevada Test Site<20 kilotons 
"Cerise"18 November 1966Nevada Test Site<20 kilotons 
"Sterling"3 December 1966near Hattiesburg, Mississippi<380 tons 
"New Point"13 December 1966Nevada Test Siteabout 10 kilotons 
"Greely"20 December 1966Nevada Test Site870 tons 
"Nash"19 January 1967Nevada Test Siteabout 49 kilotons 
"Bourbon"20 January 1967Nevada Test Siteabout 29 kilotons 
"Ward"8 February 1967Nevada Test Siteabout 10 kilotons 
"Persimmon"23 February 1967Nevada Test Siteabout 3 kilotons 
"Agile"23 February 1967Nevada Test Siteabout 130 kilotons 
"Rivet III"2 March 1967Nevada Test Site<20 kilotons 
"Fawn"7 April 1967Nevada Test Site<20 kilotons 
"Chocolate"21 April 1967Nevada Test Siteabout 7 kilotons 
"Effendi"27 April 1967Nevada Test Site<20 kilotons 
"Mickey"10 May 1967Nevada Test Siteabout 10 kilotons 
"Commodore"20 May 1967Nevada Test Site250 kilotons 
"Scotch"23 May 1967Nevada Test Site155 kilotons 
"Knickerbocker"26 May 1967Nevada Test Site76 kilotons 
"Switch"22 June 1967Nevada Test Site<20 kilotonsOperation Plowshare
"Midi Mist"26 June 1967Nevada Test Siteabout 9 kilotons 
"Umber"29 June 1967Nevada Test Siteabout 8 kilotons