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3,4 nd portant au 90

English translation: 3.4 kn. dir 90 deg

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
French term or phrase:3,4 nd portant au 90
English translation:3.4 kn. dir 90 deg
Entered by: Carol Gullidge

17:22 Apr 20, 2010
French to English translations [PRO]
Ships, Sailing, Maritime / tidal currents
French term or phrase: 3,4 nd portant au 90
3,4 nd portant au 90 pour la V.E. moyenne (coefficient 95).
1,8 nd pour la M.E. moyenne (coefficient 45).
+ Vitesse < 0,05 nd.
...

1,8 nd pour la M.E. moyenne (coefficient 45).
+ Vitesse < 0,05 nd.

Courants de marées : Vive EAU
1 h APRÈS PM BREST
3 h APRÈS PM BREST
____________

My GUESS is that "nd" means knots/noeuds.
V.E. stands for Vive Eau (spring tide) and M.E. is Morte Eau (neap tide)
This accompanies 2 maps (1 hr and 3 hrs) showing masses of little arrows of varying thicknesses - presumably denoting the strength of the currents??)

Assuming that I'm right about nd = knots, then I'd be very grateful for any help with "portant au 90" - many thanks!
Carol Gullidge
United Kingdom
Local time: 19:56
3.4 kn. dir 90 deg
Explanation:
presumably underwater wind

bearing 90°
Selected response from:

Graham macLachlan
Local time: 20:56
Grading comment
Many thanks once again Graham! It is indeed talking about the tidal flow, and this is "(verbatim) the answer I used - and it fits very nicely in the pdf!
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +23.4 kn. dir 90 deg
Graham macLachlan
4downwind 3,4 knots, steering eastward
Michel F. Morin


  

Answers


31 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5
downwind 3,4 knots, steering eastward


Explanation:
Seems to be the clearest !
"Downwind": web.ref. 1
"au 90" = steering eastward: web.ref.2


    Reference: http://en.wikipedia.org/wiki/Points_of_sail
    Reference: http://www.islandregister.com/drummond.html
Michel F. Morin
France
Local time: 20:56
Specializes in field
Native speaker of: Native in FrenchFrench
PRO pts in category: 43
Notes to answerer
Asker: many thanks Michel, although I agree with Tony that currents probably don't "steer" - with the proviso that I know I could easily be proved wrong!


Peer comments on this answer (and responses from the answerer)
neutral  kashew: No commas in English decimals please.
11 mins
  -> Of course, you're right, thank you. Mistyping...
neutral  Tony M: I'm not sure if a current would be described as 'downwind', and I think 'on a bearing of 90°' would be better than 'streeing eastward' — if we're talking about the current, of course!
1 hr
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2 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +2
3.4 kn. dir 90 deg


Explanation:
presumably underwater wind

bearing 90°

Graham macLachlan
Local time: 20:56
Specializes in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 352
Grading comment
Many thanks once again Graham! It is indeed talking about the tidal flow, and this is "(verbatim) the answer I used - and it fits very nicely in the pdf!
Notes to answerer
Asker: many thanks Graham! I know from past experience that you're a bit of an "old salt" - in the best possible sense! I have to admit though, as a total landlubber, I find the idea of underwater wind a bit mind boggling!


Peer comments on this answer (and responses from the answerer)
agree  Tony M
14 mins
  -> thanks Tony
agree  Jack Dunwell: Got you, G! This is Drift of 3.4 knots and set= 90°
22 hrs
  -> isn't it the direction of the tidal flow?// ah, was beginning to wonder if my answer made sense :-)
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