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Aviation History
1923
1923 - 0710.PDF
NOVEMBER 22, 1923- UDET COMMERCIAL MONOPLANE 7O ^P SIEMENS ENGINE SPAN 39 4 . LENGTH . . . 2 3'- 10" MAX CHORD 6' 5" WING ARLA .2i2-OSei.Fi THE UDET THREE-SEATER COMMERCIAL AEROPLANE : General arrangement drawings, to scale. The undercarriage is of normal V-type in the first machine,but it is understood that a new type of chassis, offering less resistance and also slightly lighter, is being developed. As the illustrations will show, the Udet three-seater is ofgood streamline shape, and looks an efficient design. It is claimed that the gliding angle is approximately 1 in 14, andthis does not seem to be an unduly optimistic estimate. The parasite resistance has been reduced to a minimum, and theaspect ratio of the wing is high (approximately 8). The main characteristics of the Udet three-seater are as follows :Length, o.a., 7-28 m. (23ft. 10 ins.) ; span, 12 m. (39 ft. 5 ins.) ; wing area, 18 sq. m. (194 sq. ft.) ; weight empty, 470 kgs. (1,033 lbs.) ; useful load, 330 kgs. (726 lbs.) ; total loadedweight, 800 kgs. (1,759 lbs.) ; engine, 70 h.p. Siemens, radial air-cooled ; wing loading, 9 '06 lbs./sq. ft. ; power loading.25-08 lbs./h.p. ; maximum speed, 180 kms. (Ill -6 m.p.h.)! As the fuel consumption is probably only about 6 gallons perhour, the Udet should do a matter of 20 miles per gallon of petrol, or a fuel cost per passenger carried of about \d. permile. Considering the restrictions under which the German designers are working, the Udet would appear to represent areally serious attempt to provide an economical aeroplane for use where the amount of traffic is small, or for use as a touringmachine by the private owner-pilot. THE ROYAL AERO CLUB OF THE U.K. OFFICIAL NOTICES TO MEMBERS. COMMITTEE MEETINGA MEETING of the Committee was held at the Royal AeroClub, 3, Clifford Street, W. 1, on Wednesday, November 14, 1923, when there were present : Lieut.-Col. F. K. McClean,A.F.C. (in the Chair), Group-Capt. F. W. Bowhill, C.M.G., D.S.O., R.A.F., Mr. Ernest C. Bucknall, Lieut.-Col. M. O.Darby, Lieut.-Col. John D. Dunville, C.B.E., Capt. D. G. Murray, Lieut.-Col. A. Ogilvie, C.B.E., Lieut.-Col. M.O'Gorman, C.B., Mr. F. Handley Page, Mr. T. O. M. Sopwith and the Secretary. Election of Members.—The following new members wereelected :— Flying Officer Edward Leslie Barrington, R.A.F. George Ernest Baxter. :Flight-Cadet Lionel Collings Beaumont, R.A.F. Charles Walter Berry.Flight-Lieut. Hugh Leonard Burton, R.A.F. Flying Officer Irwin Napier Colin Clarke, R.A.F. Squadron-Leader Sidney Mechen Cleverly, R.A.F. Flying Officer Cyril Bertram Collins, R.A.F. Flight-Lieut. Charles Beauvoir Dalison, R.A.F. Paul J. Delalande. Flight-Lieut. Arthur Leonard Fiddament, R.A.F.Sir Arnold Babb Gridley, K.B.E. Flying Officer H. A. Hamersley, R.A.F.Squadron-Leader Cecil Hugh Havward, R.A.F. Flight-Lieut. Thomas Edward Barham Howe, R.A.F. Flight-Lieut. Leon Joseph Killmayer, R.A.F. Norman Lea.Flying Officer Hugh Lewis Pingo Lester, R.A.F. Air Commodore Charles Alexander Holcombe Long-croft, R.A.F. Squadron-Leader Richard Beauchamp Maycock, R.A.F.Wing-Commander Eric Roper Curzon Nanson, R.A.F. Maurice Walter Piercey. Sydney Elliott Preston.Squadron-Leader Thomas Stanley Rippon, R.A.F. Frank Eugene Robinson.Pilot Officer Charles Forbes Sealy, R.A.F. Flying Officer Edward Ewart Paull Smith, R.A.F. Walter Stanhope-Spencer.Flight-Lieut. David Arthur Stewart, R.A.F. Frederick Tymms. Flight-Lieut. Frederick Hubert Williams, R.A.F.Honorary Member.—Capt. Silvio Scaroni, Italian Air Attache. Honorary Life Member.—Mr. Griffith Brewer wasunanimously elected an Honorary Life Member of the Club. Certificate of Performance (under the Competition Rule?of the Royal Aero Club).—The following Certificate of Per- formance was granted to Messrs. D. Napier and Son, Ltd. :—Type : " Gloster-Napier." Constructor : Gloucestershire Air- craft Co., Ltd., Cheltenham. Engine : 450 h.p. Napier " Lion."Place : Waddon Aerodrome, Croydon. Date : August 6, 1923. Aerial Derby, 1923 Performance.—Distance, 200 miles. Time, lh. 2 m. 23 s. Speed, 192 -4 m.p.h. Racing Committee.—The report from the Racing Com- mittee was received and adopted. The report included the following items :— Light Aeroplane Demonstration at Hendon. Light Aeroplane Competitions, 1924. Air Ministry Amendments to the Regulations governing the issue and renewal of " A " Licences. Private Pilots' Licences, Class " A."—Lieut.-Col. A. Ogilvie, C.B.E., reported that he and the Secretary had represented the Club at a Conference at the Air Ministry on October 30. The Air Ministry were proposing to introduce amendments to the Regulations governing the issue and renewal of " A " Licences, more particularly as regards recent flying experience, minimum hours of flying in the vicinity of an aerodrome to re-qualify, and medical examination. The Club's view that there was no occasion to vary the conditions at present in force, had been submitted to the Conference. Light Aeroplanes.—It was decided to adopt the term : " Light Aeroplane " in place of " Motor-Glider." Offices: THE ROYAL AERO CLUB, 3. CLIFFORD STREET, LONDON, W. i. H. E. PERRIN, Secretary. 71G
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