1945: S/N 45-11489, C/N 124-48242
1957: MN ANG
1957: surplus, McClellan AFB Sacramento CA, TT 1165
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1957: Sep 20, sale, Albert Leeward / Leeward Aeronautical Sales, Miami FL, $1066.00
1958: Apr 30, N5421V, sale, James K Leeward, Fort Wayne IN
1958: May 14, N5421V, inspection, TT 1173:10, Engine 510:50
1958: Jun 10, N5421V, sale, Trans Florida Aviation, Sarasota FL
1959: Oct 05, N5421V, airworthiness, Experimental
- STC SA2-721, wingtip fuel tanks
1959: Oct, testing, wingtip fuel tanks - dive test at 510 mph, 4 G pull at 400 mph
1960: Feb, testing, wingtip fuel tanks, 21 hrs flight, 6 G pull
1960: May 27, N551D (#2), reg, Trans Florida Aviation, Sarasota FL, 2nd Cavalier Prototype
1961: Jul 17, N551D, sale, Stan Hoke / Needham Holden dba Dunbar Stanley Studios, Charlotte NC
1961: Sep 25, N551D, major-work, TFA Cavalier 2000
1964: Sep 12, N551D, Harold's Club Transcontinental Trophy Dash - St. Petersburg FL to Reno NV
- Stan Hoke "Penney's Pixy" #99 - 6th place - 9:25.3 @ 255.68
1965: Feb 02, N551D, transfer, Stan Hoke / Needham Holden, Charlotte NC
1965: Feb 02, N551D, transfer, Dunbar-Stanley Studios Inc, Charlotte NC
1965: Sep 22, N551D, sale, Southeast Airmotive Corp, Charlotte NC
1966: Feb 07, N551D, sale, Colony Farms Inc, Middleburg VA, FAA 3/17/1966
1966: Apr 17, N551D, crashed/destroyed, aerobatics, Lincoln VA
- NTSB# NYC66A0117 - stall / spin 1 fatal
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ID Transferred to A68-039