Flight list from J. Miller, "The X-Planes", 2001.
I note
that in 2018 Chuck Yeager disputed the accuracy of the list and reported that Hoover never flew the X-1.
- Jonathan McDowell, May 2018
X-1 No. 1 Flight Date A/C Pilot Alt (km) (C=Captive) Bell 1 X-1-1 C Bell 2 X-1-1 C Bell 3 X-1-1 C Bell 4 X-1-1 C Bell 5 X-1-1 C Bell 6 X-1-1 C Bell 7 X-1-1 C Bell 8 X-1-1 C Bell 9 X-1-1 C Bell 10 X-1-1 C Bell 11 X-1-1 C Bell 12 1947 Apr 11 X-1-1 Goodlin 6 Bell 13 1947 Apr 29 X-1-1 Goodlin 10.7 Bell 14 1947 Apr 30 X-1-1 Goodlin 10.7 Bell 15 1947 May 5 X-1-1 Goodlin Bell 16 1947 May 15 X-1-1 Goodlin Bell 17 1947 May 19 X-1-1 Goodlin Bell 18 1947 May 21 X-1-1 Goodlin Bell 19 1947 Jun 5 X-1-1 Goodlin AF 1 1947 Aug 29 X-1-1 Yeager AF 2 1947 Sep 4 X-1-1 Yeager AF 3 1947 Sep 8 X-1-1 Yeager AF 4 1947 Sep 10 X-1-1 Yeager AF 5 1947 Sep 12 X-1-1 Yeager AF 6 1947 Oct 3 X-1-1 Yeager AF 7 1947 Oct 8 X-1-1 Yeager 12 AF 8 1947 Oct 10 X-1-1 Yeager 12.5 AF 9 1947 Oct 14 X-1-1 Yeager 13.7 M=1.0 AF 10 1947 Oct X-1-1 Yeager C AF 11 1947 Oct 28 X-1-1 Yeager AF 12 1947 Oct 29 X-1-1 Yeager AF 13 1947 Oct 31 X-1-1 Yeager AF 14 1947 Nov 3 X-1-1 Yeager AF 15 1947 Nov 4 X-1-1 Yeager AF 16 1947 Nov 6 X-1-1 Yeager 14.8 AF 17 1948 Jan 16 X-1-1 Yeager AF 18 1948 Jan 22 X-1-1 Yeager AF 19 1948 Jan 30 X-1-1 Yeager AF 20 1948 Feb 24 X-1-1 Fitzgerald 8.5 AF 21 1948 Mar 11 X-1-1 Yeager 13.7 AF 22 1948 Mar 26 X-1-1 Yeager 15.2 AF 23 1948 Mar 31 X-1-1 Yeager AF 24 1948 Apr 6 X-1-1 Fitzgerald 12.5 AF 25 1948 Apr 7 X-1-1 Fitzgerald? C AF 26 1948 Apr 7 X-1-1 Fitzgerald 11 AF 27 1948 Apr 9 X-1-1 Lundquist AF 28 1948 Apr 16 X-1-1 Lundquist AF 29 1948 Apr 26 X-1-1 Fitzgerald 8.5 AF 30 1948 Apr 29 X-1-1 Lundquist 12 AF 31 1948 May 4 X-1-1 Fitzgerald 12 AF 32 1948 May 21 X-1-1 Lundquist 10 AF 33 1948 May 25 X-1-1 Fitzgerald 9 AF 34 1948 May 26 X-1-1 Yeager 19.5* AF 35 1948 Jun 3 X-1-1 Lundquist 8 AF 36 1948 Dec 1 X-1-1 Yeager 8.5 AF 37 1948 Dec 13 X-1-1 Yeager 6 AF 38 1948 Dec 23 X-1-1 Yeager 18.3 AF 39 1949 Jan 5 X-1-1 Yeager Ground launch AF 40 1949 Mar 11 X-1-1 Ridley AF 41 1949 Mar 16 X-1-1 Boyd AF 42 1949 Mar 21 X-1-1 Everest 12 AF 43 1949 Mar 25 X-1-1 Everest 14.6 AF 44 1949 Apr 14 X-1-1 Ridley 12 AF 45 1949 Apr 19 X-1-1 Everest AF 1949 Apr 29 X-1-1 Ridley 15.8 AF 46 1949 May 2 X-1-1 Yeager AF 47 1949 May 5 X-1-1 Everest AF 48 1949 Jul 25 X-1-1 Everest 20.4* AF 49 1949 Aug 8 X-1-1 Everest 21.9* AF 50 1949 Aug 25 X-1-1 Everest 21.0 AF 51 1949 Oct 6 X-1-1 Fleming AF 52 1949 Oct 26 X-1-1 Johnson AF 53 1949 Nov 29 X-1-1 Everest AF 54 1949 Dec 2 X-1-1 Everest AF 55 1950 Feb 21 X-1-1 Everest AF 56 1950 Apr 25 X-1-1 Yeager AF 57 1950 May 5 X-1-1 Ridley AF 58 1950 May 8 X-1-1 Ridley AF 59 1950 May 12 X-1-1 Yeager X-1 No. 2 Bell 1 X-1-2 C Bell 2 X-1-2 C Bell 3 X-1-2 C Bell 4 X-1-2 C Bell 5 1946 Dec 8 X-1-2 Goodlin 10.7 Bell 6 1946 Dec 20 X-1-2 Goodlin 8.2 Bell 7 1947 Jan 8 X-1-2 Goodlin 11.3 Bell 8 1947 Jan 17 X-1-2 Goodlin 11 Bell 9 1947 Jan 22 X-1-2 Goodlin 11 Bell 10 1947 Jan 23 X-1-2 Goodlin 11 Bell-11 1947 Jan 30 X-1-2 Goodlin 11 Bell-12 1947 Jan 31 X-1-2 Goodlin Bell 13 1947 Feb 5 X-1-2 Goodlin Bell 14 1947 Feb 7 X-1-2 Goodlin Bell 15 1947 Feb 19 X-1-2 Goodlin Bell 16 1947 X-1-2 ? C Bell 17 1947 May 22 X-1-2 Johnston Bell 18 1947 May 29 X-1-2 Goodlin NACA 0 1947 Sep 25 X-1-2 Yeager 9 NACA 1 1947 Dec 16 X-1-2 Hoover NACA 2 1947 Dec 17 X-1-2 Hoover NACA 3 1948 Jan 6 X-1-2 Hoover NACA 4 1948 Jan 8 X-1-2 Hoover NACA 5 1948 Jan 9 X-1-2 Lilly NACA 6 1948 Jan 15 X-1-2 Lilly NACA 7 1948 Jan 21 X-1-2 Hoover 9 NACA 8 1948 Jan 23 X-1-2 Hoover 9 NACA 9 1948 Jan 27 X-1-2 Hoover 11.5 NACA 10 1948 Mar 4 X-1-2 Hoover 12 NACA 11 1948 Mar 10 X-1-2 Hoover 12 NACA 12 1948 Mar 22 X-1-2 Hoover NACA 13 1948 Mar 30 X-1-2 Hoover NACA 14 1948 Mar 31 X-1-2? Lilly 12 NACA 15 1948 Apr X-1-2 Lilly? C NACA 16 1948 Apr 9 X-1-2 Lilly 9 NACA 17 1948 Apr 16 X-1-2 Lilly 12.5 Damaged NACA 18 1948 Nov 1 X-1-2 Hoover 12 NACA 19 1948 Nov 15 X-1-2 Hoover 12 NACA 20 1948 Nov 23 X-1-2 Champine 9 NACA 21 1948 Nov 29 X-1-2 Champine 13 NACA 22 1948 Nov 30 X-1-2 Champine 12 NACA 23 1948 Dec 2 X-1-2 Champine 12 NACA 24 1949 May 6 X-1-2 Champine 12 NACA 25 1949 May 13 X-1-2 Champine 10 NACA 26 1949 May 27 X-1-2 Champine 11.5 NACA 27 1949 Jun 16 X-1-2 Champine 12 NACA 28 1949 Jun 23 X-1-2 Champine 14.3 NACA 29 1949 Jul 11 X-1-2 Champine 13 NACA 30 1949 Jul 19 X-1-2 Champine 13 NACA 31 1949 Jul 27 X-1-2 Champine 12 NACA 32 1949 Aug 4 X-1-2 Champine NACA 33 1949 Sep 23 X-1-2 Griffith 12.6 NACA 34 1949 Nov 30 X-1-2 Griffith NACA 35 1950 May 12 X-1-2 Griffith 12 NACA 36 1950 May 17 X-1-2 Griffith 13.7 NACA 37 1950 May 26 X-1-2 Griffith 13.7 NACA 38 1950 Aug 9 X-1-2 Griffith 13.7 NACA 39 1950 Aug 11 X-1-2 Griffith 13 NACA 40 1950 Sep 21 X-1-2 Griffith 14 NACA 41 1950 Oct 4 X-1-2 Griffith 13.7 NACA 42 1951 Apr 6 X-1-2 Yeager NACA 43 1951 Apr 20 X-1-2 Crossfield NACA 44 1951 Apr 27 X-1-2 Crossfield 13.7 NACA 45 1951 May 15 X-1-2 Crossfield 13.7 NACA 46 1951 Jul 12 X-1-2 Crossfield 13.7 NACA 47 1951 Jul 20 X-1-2 Crossfield 13.7 NACA 48 1951 Jul 31 X-1-2 Crossfield 13.7 NACA 49 1951 Aug 3 X-1-2 Crossfield 13.7 NACA 50 1951 Aug 8 X-1-2 Crossfield 13.7 NACA 51 1951 Aug 10 X-1-2 Crossfield NACA 52 1951 Aug 27 X-1-2 Walker 13.4 NACA 53 1951 Sep 5 X-1-2 Crossfield NACA 54 1951 Oct 23 X-1-2 Walker X-1D USAF 1 1951 Aug 22 X-1D [Everest] Exploded, jettison prior to launch X-1A Bell 1 1952 ? X-1A Ziegler C Bell 2 1952 ? X-1A Ziegler C Bell 3 1953 Feb 21 X-1A Ziegler Bell 4 1953 Mar 26 X-1A Ziegler Bell 5 1953 Apr 10 X-1A Ziegler Bell 6 1953 Apr 25 X-1A Ziegler X-1A-7 1953 Nov 21 X-1A Yeager X-1A-8 1953 Dec 2 X-1A Yeager X-1A-9 1953 Dec 8 X-1A Yeager 18.3 X-1A-10 1953 Dec 12 X-1A Yeager 22.9 X-1A-11 1954 ? X-1A Murray 10? X-1A-12 1954 ? X-1A Murray X-1A-13 1954 ? X-1A Murray X-1A-14 1954 ? X-1A Murray X-1A-15 1954 ? X-1A Murray X-1A-16 1954 May 28 X-1A Murray 26.5 X-1A-17 1954 Jun 4 X-1A Murray 27.4 X-1A-18 1954 ? X-1A Murray X-1A-19 1954 ? X-1A Murray X-1A-20 1954 ? X-1A Murray X-1A-21 1954 ? X-1A Murray X-1A-22 1954 ? X-1A Murray X-1A-23 1954 ? X-1A Murray X-1A-24 1954 Aug 26 X-1A Murray 27.56 NACA 1 1955 Jul 20 X-1A Walker 13.7 NACA 2 1955 Aug 8 X-1A - Exploded attached to B29 X-1B X-1B-1 1954? X-1B ? C X-1B-2 1954? X-1B ? C X-1B-3 1954 Oct 8 X-1B Murray X-1B-4 1954 Oct 13 X-1B Stephens X-1B-5 1954 Oct 19 X-1B Childs X-1B-6 1954 Oct 26 X-1B Hanes X-1B-7 1954 Nov 4 X-1B Harer X-1B-8 1954 Nov 26 X-1B Holtoner X-1B-9 1954 Nov 30 X-1B Everest X-1B-10 1954 Dec 2 X-1B Everest 20 NACA 1 1956 Aug 14 X-1B McKay NACA 2 1956 Aug 29 X-1B McKay NACA 3 1956 Sep 7 X-1B McKay 17 NACA 4 1956 X-1B McKay C NACA 5 1956 Sep 28 X-1B McKay 18 NACA 6 1957 Jan 3 X-1B McKay NACA 7 1957 May 22 X-1B McKay 18 NACA 8 1957 Jun 7 X-1B McKay 18 NACA 9 1957 Jun 24 X-1B McKay 18 NACA 10 1957 Jul? X-1B McKay C NACA 11 1957 Jul 19 X-1B McKay 18 NACA 12 1957 Jul 29 X-1B McKay 18 NACA 13 1957 Aug 8 X-1B McKay 18 NACA 14 1957 Aug 15 X-1B Armstrong NACA 15 1957 Nov 27 X-1B Armstrong NACA 16 1958 Jan 16 X-1B Armstrong NACA 17 1958 Jan 23 X-1B Armstrong 17 X-1E NACA 1 1955 X-1E Walker C NACA 2 1955 Dec 15 X-1E Walker NACA 3 1956 Apr 3 X-1E Walker 9 NACA 4 1956 ? X-1E Walker C NACA 5 1956 May 11 X-1E Walker NACA 6 1956 Jun 7 X-1E Walker 13.7 NACA 7 1956 Jun 18 X-1E Walker 18 NACA 8 1956 Jul 26 X-1E Walker NACA 9 1956 Aug 31 X-1E Walker 18 NACA 10 1956 Sep 14 X-1E Walker 19 NACA 11 1956 Sep 20 X-1E Walker NACA 12 1956 Oct 3 X-1E Walker NACA 13 1957? X-1E Walker C NACA 14 1957 Apr 25 X-1E Walker 20 NACA 15 1957 May 15 X-1E Walker 22 NACA 16 1957 Sep 19 X-1E Walker NACA 17 1957 Oct 8 X-1E Walker NACA 18 1958 May 14 X-1E Walker 21 NACA 19 1958 Jun 10 X-1E Walker NACA 20 1958 Sep 10 X-1E Walker NACA 21 1958 Sep 17 X-1E Walker NACA 22 1958 Sep 19 X-1E McKay NACA 23 1958 Sep 30 X-1E McKay NACA 24 1958 Oct 16 X-1E McKay NACA 25 1958 Oct 28 X-1E McKay NACA 26 1958 Nov 6 X-1E Walker?