The Tarrant Tabor, a prototype bomber designed and built in 1918-9. There were high hopes among strategic bombing advocates (including P. R. C. Groves) for this giant machine, but by the time it was ready for its maiden flight in May 1919, the war was over and its purpose now unclear. Not that this mattered much, for that first flight was abortive:
The designer of the Tabor, Walter Barling, went to the United States where he designed the similar Barling Bomber a few years later. This didn't crash, but wasn't particularly successful either: it couldn't even overfly the Appalachians. It ended up disassembled in a corner of Wright Field.
All of that is just an excuse to post the picture of the Tabor and to point at the place where I found it, x planes, a tumblr blog devoted to striking aviation images. (The crash photo is from a Russian site.)
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