Comment: Hook detail is in the second two paras of the "Western Front" section. Expanded 5x (hopefully!) and new version moved into mainspace on 10/2.
5x expanded by Andrew Gray (talk). Self nom at 10:05, 11 February 2013 (UTC)
Length, date, and hook length are ok, but neither the article, nor the reference states the losses as "three-quarters". It takes some OR to arrive at that from the raw numbers of losses. If another source cannot be found perhaps the easiest thing would be to modify the hook in line with the article. SpinningSpark 23:49, 11 February 2013 (UTC)
The two numbers are both given by the source, and I don't think it's much of OR to conclude that they're approximately in a 3:1 ratio. I'll have a think about this. Andrew Gray (talk) 09:41, 12 February 2013 (UTC)
Looking at the source again more carefully, I think I can agree that this is allowable as a WP:CALC case. Good to go, well done. SpinningSpark 16:57, 12 February 2013 (UTC)