Flight, October 1923

WINNERS OF THE FRENCH "GRAND PRIX"
Two New Types of Farman Four-Engined Aeroplanes

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   The four-engined Farman biplane that secured second place is very similar to the familiar "Goliath," but is fitted with four Salmson engines of 260 h.p. each. In the competition the pilots were Bossoutrot and Drouhin. The length of the Farman F.4S is 14-8 m. (48 ft. 6 ins.) and the span 25-55 m. (83 ft. 10 ins.). The wing area is 139 sq. m. (1,496 sq. ft.) and the empty weight 3.220 kgs. (7,084 lbs.),

Flight, December 1924

The Paris Aero Show 1924

SOCIETE DES AVIONS HENRY AND MAURICE FARMAN

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   The fuselage and tandem engine units of a huge four-engined bomber (B.N.4) is also exhibited. This is equipped with almost every conceivable "gadget," and would gladden the hearts of some of the Air Ministry experts from the Technical Department. It is not proposed to give a description here, but it may be stated that the night-bomber is fitted with four 500 h.p. Farman engines, and has a total loaded weight of 11,000 kgs. (24,200 lbs.). Some idea of the size of this machine may also be formed from the fact that the wing span is 35 m. (115 ft.), and the wing area 266 sq. m. (2,860 sq. ft.). In spite of its size the Farman B.N.4 is expected to have a top speed of 165 km./h. (103-m.p.h.).

Flight, November 1925

THE FOUR-ENGINED FARMAN "GOLIATH
Holder of Several French and World's Records

   THE accompanying photograph shows the Farman four-engined biplane which recently established several new records for load carried. The machine is in effect a super-Goliath, with four 500 h.p. Farman engines in place of the two lower-powered engines fitted on the standard "Goliath." It is claimed that by loading the machine to the maximum of its capacity the useful load carried, whether in the form of bombs or as passengers or goods, is in the neighbourhood of 6,000 kgs. (13,200 lbs.). Moreover, the machine is said to be capable of not only flying level but of climbing with one of the four engines stopped, and with less than full load it will fly level on two engines.
   Another photograph shows one of the 500 h.p. Farman engines as installed in this machine. This engine is of the 12-cylinder "broad arrow" type, with a bore of 130 mm. and a stroke of 160 mm. The weight of the engine is 510 kgs. (1,122 lbs), including two-to-one propeller reduction gearing, propeller hub and electrical equipment, but exclusive of water. It was with a similar engine that a single-engined Farman remained aloft for 45 hours 12 mins.