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for us to do experimental work along the same general lines.

The Wibault Company is also constructing a single-seater, supercharged pursuit plane of the "Parasol Monoplane" type, motored with the Hispano-Suiza, which should be very closely observed in its development. It it has the desired manoeuverability, it will represent a type suitable for pursuit work at altitudes.

Mr. Wibault employs fabric for all his surfaces and fuselage covering. The advantage is the ease of inspection of the internal construction units, accessibility and ease of replacement. Deterioration in the field when exposed to the weather is going to make the covering relatively short lived, but this deterioration requires on the replacement of fabric and not of any major structural part. This sis a point to be very seriously considered in our own programme when studying the design and construction of our future all-metal wings. In considering whether or not we will adopt metal wings with fabric covering, or metal wings with metallic covering, it should be remembered that the advantages or disadvantages in either case are not alone concerned with the covering.

The Morane Saulnier Company has designed and built during the past year, an internally braced monoplane with tapered

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