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Aviation History
1927
1927 - 0069.PDF
FEBRUARY 3, 1927 THE HUFF-DALAND "PEGASUS A Successful American High-Powered Single-Engined Bomber YLTHOUGH the Huff-Daland " Pegasus " made its first public appearance at the National Air Races held at Mitchell Field, New York, in 1925, it was only a few months ago that any information regarding this machine was allowed to be published. At the races in question the " Pegasus " won -.he Air Transport Race. The " Pegasus " or XLB-1 is a tractor fuselage biplane :ight bomber designed by C. T. Porter, chief engineer of rluff, Daland Airplanes, Inc., of New York, and is one of The structure of the fuselage is of the Warren type, there being four main longerons, tapering to a vertical knife-edge at the rear ; the maximum depth is at the trailing edges of the main planes, fore and aft of which the fuselage tapers slightly. The covering of the fuselage is fabric, except for the engine section. The undercarriage is of the split-axle--or, to be exact, non-axle—type, consisting of two wheels with a very wide track (14 it.), each hinged to the fuselage by an " axle-strut " THE HUFF-DALAND XLB-1 " PEGASUS " BOMBER : Three-quarter front view of a successful American machine of metal construction. Note the wide wheel track. the largest single-engined machines of its class ; fitted with the Packard 2A-2500 800 h.p. water-cooled engine, it has remarkable speed and load-carrying qualities. As with other types of Huff-Daland aeroplanes, such as the " Petrel," " Pelican," " Panther," etc., the " Pegasus " has an all-metal fuselage of welded steel tube, constructed in one unit from the nose to the tail, in which the employment of wire bracing has been entirely eliminated. The mounting for the 800 h.p. Packard engine is readily detachable, together with the engine, by the removal of only four bolts, and an interchange of engines in service is thus rendered easily possible. extending from the stub axles up to the fuselage, and a radius-strut " running back from the stub-axles to the fuselage. This undercarriage is also particularly interesting on account of the shock absorbing principle employed. The use of rubber is eliminated in both the undercarriage and the tail skid in favour of units of three oil and spring oleo shock-absorbing cylinders for each wheel, and a single cylinder for the tail skid. The wheel absorber units are mounted above and alongside each wheel, being attached to the lower plane centre section (front spar). The tail skid is steerable. SPAN 66-6" LENGTH. .4-6'-2" WING A.REA.. 11 SO SQ.FT HUFF DALAND "PEGASUS" 800\P. PACKARD ENGINE THE HUFF-DALAND "PEGASUS " BOMBER : Plan, side and front elevations to scale. 57
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