MERMOZ (Jean)

Lot 412
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Estimation :
10000 - 15000 EUR
MERMOZ (Jean)
The development of the South American line and the crossing of the Atlantic. [Late 1934?]. 16 p. on 15 ff. in-4 (26.8 x 21 cm) jagged-edged wove paper, black pencil, partial foliotation with black pencil (1-12). Partial draft of a very important presentation on the development of the South American line and the crossing of the Atlantic for postal service and passenger transportation. Autograph manuscript, extensively cross-ruled and corrected. Mermoz, drawing a parallel between the plane and the seaplane, also returns in this text to his own crossings: "[...] I think that the plane and the seaplane each have their place in the future of commercial transatlantic air crossings: the plane from the purely postal point of view, the seaplane from the purely passenger point of view. In my humble opinion, I consider that the postal issue on the South American route should be the first to be considered. It is the only one likely to make this route economically viable despite all the subsidy reductions to be considered. ... Now that the South Atlantic, from a meteorological point of view, is almost monotonously easy to pass through because it is so uneventful, I am no more sure of that. The famous doldrums, which are mostly localised, moving from N to South and from East to West according to the strength of the NE trade winds in the N hemisphere and the SE winds in the South Atlantic, may not, I agree, be an insurmountable obstacle on a dark night. In the area where it is, the winds are generally zero. But there are disturbances during the SW monsoon which are absolutely independent of a known and stable weather system. For my part, I have had the opportunity to encounter them twice between Natal and St. Paul's Rock in the area of Fernando de Noronha Island. ...] The sea was rough and seemed to rise as if sucked up. To go over it, it would have been necessary to reach at least five thousand meters to find calm. Changing course and travelling for a goo
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