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Aviation History
1921
1921 - 0288.PDF
KSSBSN of the ;wing, there are practically no adjustments required for very long periods. In the case of biplanes with external bracing there are numerous alignments that have to be maintained if the machine is to retain its flying qualities. .Bracing wires and their attachments stretch and the structure warps. It may not be enough to require any great adjust- ment for considerable periods, but the very knowledge that trueing up may be required necessitates a constant watch being kept on the rigging of a machine. In conjunction with the cantilever wing, a feature which has also helped to re-introduce the monoplane form is that such a wing is necessarily of deep section, and therefore, if it is well designed, gives a high lift. This means smaller wings for a given load, so that for medium sized machines one wing can carry the load without reaching unduly great dimensions. Whether the monoplane has come to stay or not is impossible to forecast at the moment, but un- doubtedly the type is occupying the minds of designers to a greater and greater extent. In this country several designers have completed their drawings, and have in several instances commenced manufac- ture, of cantilever monoplanes': Capt.de Havilland has under wav a couple of machines of this type which promise very well indeed. The Bristol company also are experimenting along these lines, Capt. Barnwell having obtained some rather promis- ing results with wings of a type somewhat different from that of the de Havilland machines. Blackburns are continuing their research and experiments with the " Alula " wing, which differs again from both the de Havilland and the Barnwell designs. Then there is the extraordinary Voyewodsky design, in which the fuselage, tail and all exposed components are designed as lifting surfaces. ~. ^ APRIL 28, 1921 There are thus not lacking indications, „ in this country alone, that we are at^| p y Monoplane present at the beginning of a monoplane era. Future alone can shew whether or not this is the wisest direction for development. The general concensus of opinion appears to be that the monoplane—in its modernised version—is well worth going on with. The "latest British convert to the monoplane type is Mr. Handley Page, whose new monoplane is referred to elsewhere in this issue. Apart from the fact that it is a monoplane with thick, high-lift wings, the new H.P. machine is of more than ordinary interest on account of the fact that it is to be" fitted with the H.P. " slot." This will be the first time the slotted wing is tested on a machine specially designed for it, and it is, perhaps, not too much to say that its trial flights will be looked forward to with greater interest than those of almost any other machine at present building. For the first time for years *a radical departure from standard wing sections is to be tried out thoroughly. That the designers expect the new machine to be a great improvement on present ones is evidenced by the fact that it is expected that by using it the fares on the London-Paris service may possibly be reduced to a matter of A or so. When it is remembered that the new machine is intended to carry 12 passengers for a horse-power of 350, or about 30 h.p. per passenger, this expectation seems not at all unreasonable, and if it is fulfilled a tremendously great step will have been made towards true commercial aviation. While we have to expend anywhere between 50 and 60 h.p. for each passenger carried, flying must necessarily be fairly expensive, especially as the fuel costs of an air service are probably somewhere about 30 per cent, of the total running costs. ROYAL AIR FORCE CADETSHIPS •"••'•'-'? Forthcoming Entrance Examination >; -^ r THE Air Ministry announces that an examination for entrance into the Royal Air Force Cadet College will be held on June 28, 1921, and following days. The number of cadetships open to competition at this examination will not be less than 25, inclusive of King's Cadets or Honorary King's Cadets, and will include the award of not less than one prize cadetship. Candidates must have attained the age of 17 i and not have attained the age of 19 on July 1, 1921, the only exception being in the case of a candidate who— («) Was serving on January 1, 1920 (or who had served prior to that date),in the Royal Navy, Royal Marines, Regular Army, Royal Air Force, Special Reserve, Indian Army Reserve of Officers, Militia, Territorial Force, or in the Forces of the Overseas Dominions ; or b) Was serving on March 1, 1919 for wjjp had served prior to that date), in the Senior Division of the Officers' Training Corps ; and who, in addition to fulfilling the above conditions, is recommended by l\is commanding officer as suitable in all respects for appointment to a permanent commission in the Royal Air Force, in which case the upper limit of age will be 21. Candidates must apply in writing to the Secretary, Civil Service Commissioners, Burlington Gardens, London, W. 1, for forms of application, and the forms should be completed and returned not later than May 12, next. No application received later than May 26 will be accepted under any circumstances. The competition will be conducted in accordance with the Provisional Regulations for the Royal Air Force (Cadet) College ; (Air Publication, 121), which may be obtained from His Majesty's Stationery Office, Imperial House, Kingsway, W.C, 2. (Price-6d.) . .. The " Wake/Jcld " Scholarships " '"• .'•••- - To assist in defraying the expenses of residence at the Royal Air Force (Cadet) College, in the case of cadets whose parents or guardians are in reduced circumstances, Sir Charles Wakefield has generously undertaken to provide funds for a period of three years for the annual award of two scholarships, each of the value of ^75 per annum. Preference will be given where reduced circumstances are due to the late War. One scholarship will be offered for competition at the examination held in June, and one at that held in November. Scholarships will be tnnable for two years. On each occasion the scholarship will be awarded to the_ candidate, accepted as eligible by the Air Council, who passes highest into the College. The names of intending candidates should be forwarded to the Secretary (S. 7), Air Ministry, Kingsway, London, W.C. 2. Applications should normally reach the Air Ministry not later than January 15 and May 15, in the case of the June and November examinations respectively. They will, however, be accepted provided they are received not later: than May 1 and October 1, respectively. Each application should be accompanied by a full statement (which will be treated as strictly confidential) of the circum- stances of the candidate's case. The Air Council will decide upon the eligibility or otherwise of the candidate. A King's Cadet, Prize Cadet, or a Candidate nominated under Section VIII of the Provisional Regulations for the Royal Air Force (Cadet) College (Air Publication, 121). will not be eligible to hold a Wakefield Scholarship. 288
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