. "No 61 Squadron" . "61" . . . . "No. 61 Squadron RFC" . . "No. 61 Squadron RAF" . . "No. 61 Air" . . . . . . . "No. 61 Squadron RAF" . "0024" . . "(\\\"Thundering through the clear air\\\")" . "TheLincoln Imp" . "1917" . "(The figure associates the squadron with the district in which it was re-formed in 1937 and where it spent most of its active days in World War II.)" . . "LS (Mar 1939 \u2013 Sep 1939)" . . . "No. 61" . . . . "No. 61 Squadron" . . . . . . . . "Latin: Per purum tonantes" . "61 Squadron" . . "No. 61 Group RAF" . . . . . . . . . . . . . "61 Sqn" . "The lincoln Imp" . . . . . "61 Squadrons" . . . "QR (Sep 1939 \u2013 Apr 1951)" . "1919" . . .