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flight or while on the water and the institution has permitted considerable cleaning up of the wings. It has none of the conventional type of super-motor structure.

The boat hull is constructed entirely of veneer with the usual concave bottom. The horizontal surfaces are adjustable during flight. Very close attention has been given in this job to streamlining wherever possible. Even the wire terminal fittings and fastenings are streamlined. Photographs of this machine are included in the photographic supplement.

This machine has considerable weight but according to the designer it can be lightened in future jobs. It would be very well adapted for the installation of four Liberties without any appreciable increase in power plane weight inasmuch as the Fiat A 12, 300 h.p. engines weigh approximately the same as the Liberty 12 with 100 horsepower less.

This is the only four-motored seaplane built in Italy to date.

According to Mr. Fegna, setting the motors low on the wing did not give any trouble from water being sucked up into the propeller zone, owing to the peculiar concave shape of the bottom

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