FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1928
1928 - 0613.PDF
27 JULY 5, 1928 THE VICKERS "VIVID One Napier " Lion XI " Engine GENERAL THE " Vivid," a two-seater reconnaissance machine designedand built by Vickers, Ltd., at Weybridge, is powered by one Napier " Lion XI " water-cooled engine and provided withinterchangeable land and float undercarriages. The pilot's cockpit is fitted with two fixed Vicker's belt-feed guns firingforward through the airscrew disc. The observer, immediately to the rear, is armed with a Vicker's drum feed gun mountedon a Scarff ring. In addition to the above, the aircraft is designed to carry4 x 250 lb. bombs slung under the lower plane, a prone sighting position for the observer being arranged under thepilot's seat, Fuselage.—Constructed throughout of mild steel tubes and braced with tie rods. Machined steel fittings occur at the points of attachment of engine mounting, chassis, wings, etc. while all other angle joints are of wrapped steel plate with sockets to receive vertical and cross members. Wings.—The arrangement is that of a staggered, unequal span biplane and the structure throughout is of metal with fabric covering. The dural spars consist of double T-section extruded flanges riveted to joggled plate webs ; drag loads are taken by special compression ribs and tie rod bracing, while profile ribs are of dural tube. Statically balanced Frise type ailerons are fitted to both upper and lower wings. Tail.—Structure and covering is similar to main planes, while shrouded horn balance is fitted to elevators and rudder. Engine Installation.—The engine is in the nose of themachine, mounted on bearers supported on a steel tubular framework which also carries an underslung nose radiator,the whole being cowled in to give a good entry shape. The two main petrol tanks form part of the upper wing while aremovable auxiliary tank is located in the fuselage. Undercarriages.—The two-wheeled land chassis is of the split-axle type to give good ground clearance and unobstructed bomb sighting view, while the seaplane unit has two dural floats mounted on a cross-braced structure, both under- carriages incorporating Vickers' patent oleopneumatic shock absorbers. Power Plant Engine . . . . . . 1 Napier " Lion XI."Horse-power . . . . . . 590 at 2,600 r.p.m. Propeller drive . . . . Geared 0 • 532 : 1.Fuel capacity main . . . . 124 gallons (564 litres). auxiliary .. 85 gallons (386 litres). Main Dimensions (as Landplane) Wing span (upper) . . . . 45 ft. 1 in. (13-720 m.). (lower) .. .. 39 ft. 7 in. (12065 m.).Wing chord (upper) .. 8 ft. 3 in. (2-515 m.). (lower).. .. 7 ft. 0 in. (2-135 m.).Wing area 593 sq. ft. (55-095 sq. m. Length o.a 34 ft. 5 in, (10-490 m.). Weight and Loading (as Landplane) Weight empty (with all water) Load carriedTotal loaded weight Wing loading. , Power loading (on 590 h.p.) Performance Speed at ground levelSpeed at 5,000 ft. (1,525 m.) Speed at 10,000 ft. (3,050 m.)Speed at 15,000 ft. (4,570 m.) Landing speed Climb to 10,000 ft. (3,050 m.)Climb to 15,000 ft. (4,570 m.) Service ceilingAbsolute ceiling Range at full throttle (mainpetrol) 3,560 lbs. (1,613 kg.).1,990 lbs. (905 kg.). 5,550 lbs. (2,518 kg.).9-35 lbs./sq. ft. (45-75 sq. m.).9-4 lbs. (4-27 kg.). (as Landplane) 153 m.p.h. (247 km./h.).150 m.p.h. (242 km./h.). 145 m.p.h. (234 km./h.).138 m.p.h. (223 km./h.). 59 m.p.h. (95 km./h.).10 mins. 18 mins. 18,600 ft. (6,100 m.).20,100 ft. (6,600 m.j. 540 miles (870 km.). kg./ " Everting Quantities " (as Landplane) High-speed ;—• = 27 Distance figure IJ — = 3 • 9 Altitude figure IJ —L fWT~2ft, = 5-4 561
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
