Talk:Bréguet 670T

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Some comments[edit]

The contempory sources all agree the engines were 14Krdx but give different values of x (d, e,or i). Rather than labour this rather detailed point, I dropped x.

meant 14Krsx - oopsTSRL (talk) 17:06, 25 September 2015 (UTC)[reply]

There is a minor conflict between the range figures in the text and in specs. I've left them as the contemorary reports have them; the difference are probably due to different cruisie throttle setting, altitude etc. There is a hint in Howson that by 1936 K14N engines were installed but he gives no source. Maybe one will turn up but I've ignored this for now. There was also a note about a fin modification but this was in one of the "unsearchable" French newspapers. If it turns up it might be worth including.TSRL (talk) 08:59, 25 September 2015 (UTC)[reply]

From what I can gather the designation may have suffered from a continental interpretation, putting the major attribute at the end. The engine designation is much more likely to be 14Kdrs:-

14 - no of cylinders
K - series number (usually refers to cylinder dimension / type)
d - sub-series (usually, but not exclusively, indicates LH or RH rotation)
r - reduction gearing
s - supercharged

for the engine to be designated Krsd would be very unusual.--Petebutt (talk) 12:11, 25 September 2015 (UTC)[reply]

The krsd style is repeated here, p.11 and all five of the contemporary sources quoted in the article use Krsx, so it was widespread. In contrast, Jane's 1938 has 14KFS and KFRS for the Mistral-Major. Cheers,TSRL (talk) 17:30, 25 September 2015 (UTC)[reply]

But then, here are some your way round from 1931. I think they made it up as they went along!TSRL (talk) 19:44, 25 September 2015 (UTC)[reply]