FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1923
1923 - 0435.PDF
JULY 26, 1923 THE "BRISTOL" LUCIFER SCHOOL MACHINE THE new " Bristol " Lucifer school biplane is a strong andup-to-date machine, excellently suitable for instructional purposes, and so simple and strong in design and structure asto withstand hard service and constant use without much attention or depreciation. In addition to many specialfeatures, special attention must be drawn to the great reserve of power which has been provided for. From the figuresgiven in the specification it will be seen that the total loaded weight is 1,700 lbs. The British Air Ministry's Certificate of The upper and lower wings are identical and interchangeable,and are of the single bay type. This arrangement is not only convenient, but reduces the spares which should be carried.The interplane struts,'and those carrying the centre section, areiof " N " formation, and require no trueing up. An oleo-steel spring chassis is fitted, the oleo plungershaving a special type of tapered needle valve controlling the passage of the oil through the plunger and giving constant oilpressure throughout the stroke of $ ins. The fitting of an oleo E E E H E H E The "JBristol" Lucifer 1 Machine": view, E E E E School Side E S E 0 m m m m B E H E 13 IB E M orHa H Airworthiness, however, specifies that a load up to 2,140 lbs.may be carried. The 100 h.p. " Bristol " Lucifer engine is the power unitused. This is not only an engine ot great reliability and simplicity of design, but as an engine of modern type it allowsof the pupil gaining valuable experience of radial engines during the period of instruction. The consumption of thisengine at cruising speed is extremely low, amounting to about 5 gallons of petrol and 2 pints of oil per hour. A startinghandle is fitted to the Lucifer engine, so that the trouble, chassis, of course, helps considerably to reduce the risk ofdamage by reason of indifferent landings,!whilst it also materially tends to lengthen the life of the machine. The tail incidence can be varied by a lever quadrant totrim the machine under all conditions of speed and load distribution. In the separate cockpits provided for pilot and pupils dualsets of controls are fitted, whilst the instruments are also duplicated. Communication between the cockpits is bytelephone. . ' •.'_.•;.- 13 H m Bt H 13 m 13 H m E E m E E E E &••.•'. The Lucifer Machine quarte SHE • "-• •• > - Bristol" School : Three- r front - view. 1 "' - "*• • H E;E E E E E E waste of time and danger of propeller swinging is entirely obviated. The petrol is provided from a scuttle tank fixed in front of the pilot, and is fed by simple gravity, a large and easily demountable filter being fitted. The unusual sim- plicity of the petrol and oil systems also calls for remark. In order to eliminate any possibility of danger from fire, steel fireproof bulkheads are fitted behind ,the engine, and all control connections pass through fireproof glands. Car- burettor intakes are carried through the bottom side of the engine cowling, thus eliminating any possibility of the accumulation of petrol. r The specification of this machine, which, as regards its general outline, resembles the Bristol taxiplane, is :—Span, 31 ft. 2 ins. ; length, 24 ft. 4 ins. ; height, 5 ft. 10 ins. Weight empty, 1,180 lbs. ; pilot and pupil, 360 lbs. ; petrol (15 galls.). 110 lbs. ; oil (2J galls.), 25 lbs. ; equipment, 25 lbs. ; total weight, 1,700 lbs. Weight per h.p., 17 lbs. ; weight per sq. ft., 6 lbs. Speed at ground level, 95 m.p.h. ; speed at 6,500 ft., 92 m.p.h. ; speed at 10,000 ft., 90 m.p.h. Climb to 1,000 ft., 1 min. 40 sees. ; climb to 6,500 ft., 13 mins. Fuel consumption at cruising speed : petrol consumption, 5 g-p-h. ; oil consumption, 2 pints/hour. New Air Aide- de- Camp AppointedTHE Air Ministry announces that H.M. the King has approved of the appointment of Group Captain Cyril Louis Norton Newall, C.M.G., C.B.E., A.M., to be Air Aide-de-Camp to His Majesty vice Air Commodore Edgar Rainey Ludlow- Hewitt, C.M.G.. D.S.O., M.C. 435
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
