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Aviation History
1912
1912 - 0803.PDF
FOREIGN AVIATION NEWS. Paris-Herlia. ALWAYS with the Pommery Cup in view, further flights, with Berlin as the objective, are cropping up in different directions in France. M. Frantz was the latest to try, he starting on a Savary biplane fitted with Chauviere propeller and Labor-Aviation motor on the 22nd inst. from Chartres at 5.14 a. m. in a wind of 8 to 10 metres. He came down at Monchy-Lagache, 15 kiloms. from St. <,)uentin, at 7 o'clock, resuming his journey almost at once, but ultimately being forced down by a violent storm at Mons at 8.20 a.m., slightly damaging his machine when alighting. He returned by rail to Chartres for a new wheel, so that he might fly back to Douai, which he reached on Monday last. He proposes to have another try in about a week. For the 320 kiloms. covered his speed was about 140 k.p.h. Gastinger Up on the Clement-Bayard. STARTING on Sunday from Crotoy at 3.7 a.m. on the Clement- Bayard steel monoplane, Gastinger arrived at Issy at 5.12, flying at an average altitude of about 800 metres most of the time against a strong south-west wind, and passing through a storm at Pontoise. Chalons to Mailly. ON the 20th inst., Lieuts. Battini and Varcin returned from Chalons after taking part in the Michelin Target Contest on the 2-seater Maurice Farman, flying all the time against a very strong headwind. Two hours were occupied in covering the 55 kilometre*. A Despatch by Aeroplane. STARTING from the Avor Aviation Camp on the 21st inst., Lieut. Cheutin, accompanied by a passenger on a military Farman biplane, steered over the Bourges Conde barracks in the centre of the town, dropped a despatch for the Commandant, and then returned to his post. Deperdussin Hydro-Aeroplane Test. BussoN, last week,was trying out a Deperdussin hydroaeroplane on the Seine at Juvisy, the machine being a similar one to that taking part in the British Military Trials fitted with three floats. Although Busson had never tried a hydro-aeroplane before, he made a bold bid for success and, with his mechanician as passenger, he was well in the air within 50 metres of his start. A Farman for Norway. ON the 22nd inst. Maurice Farman at Buc was trying out a new biplane for the Norwegian Government, making a long flight with a passenger, he subsequently handing it over to Bernard, who was further testing it over Trappes, St. Cyr and Versailles. Bathiat on a 80-h.p, Sommer. ACCOMPANIED by a passenger, Bathiat, on the 22nd inst., flew from Mourmelon to Mouzon on the new 80-h.p. two-seater Sommer- Mono. After a short rest he returned, covering the distance between the two places in I hr. 40 mins. Sappers Making Headway. ON Saturday at the Farman Military Aerodrome at Rheims, Sapper Seguin got away in a strong wind, steering for Toul, where he arrived after an hour and a half's flying at a considerable height. In the meantime Sapper Foulquier put through their first experience on the aeroplane a Greek captain, and a dozen sappers belonging to the balloon corps. Lieut. Battlnt Makes a Good Cross-Country Flight. ACCOMPANIED by his mechanician, Lieut. Battini, on Sunday, starting from the Mailly Camp descended without any untoward incident at St. Cyr, although a strong side wind was blowing, the flight occupying about 2.\ hours. Austria-Hungary Buying Aeroplanes. IT is announced that some fourteen aeroplanes have been acquired by the Austro-Hungarian Army in connection with their forthcoming manoeuvres. An Italian Pilot Drowned. ON Sunday, Lieut. Manzini, whilst reconnoitring on his Bleriot off the coast near Tripoli, was precipitated into the sea and drowned. Sebastopol to Feodocia. LIEUT. JOUKOFF, on a Farman, carrying a passenger, flew on Friday from Sebastopol to Feodocia, 213 kiloms., in 2 hours. £4,800 in Pr^s at Chicago. Foit the aviation meeting at Chicago under the auspices of the Illinois Aero Club from September 12th to 21st about ,£4,800 has been apportioned for prizes. A splendid programme has been arranged including the usual duration events, speed races for monoplanes and biplane with and without passengers, for quick get-aways, bomb throwing, and a number of other features in which no doubt some startling stunts are likely to be forthcoming. MODELS. Conducted by V. E. JOHNSON, M.A. Rule for Rubber Motors. REFERRING, to Mr. W. P. Dean's rule, given in August 10th issue —Mr. R. B. C. Noorduyn (of the Rotterdam Model Aero Club, and winner of the Gamage Challenge Cup, 191a) writes as follows: With reference to Mr. W. P. Dean's rule—I think, and probably most aeromodellists will agree with me, that a hard and fast tule is impossible, as so many things (such as surface, weight, head resist ance) in which no two machines by different makers are exactly alike, have to be taken into account—as they determine diameter and pitch of propellers, which, in their turn, determine the number of rubber strands. All the same the question of the number of rubber strands to a certain propeller is worth going into since, firstly, it is invariably a snare to beginners, and secondly, it decides the efficiency of a model—the thing to aim at. Presuming it is the ordinary " flying stick " type that Mr. Dean is referring to, according to my experience the power he gives is too high, not that that is to be looked upon .is a criterion, but it will serve for comparison with the results of others,, so I state it for what it is worth. I quote some of my models as an example :— 1. 7-ins. propellers ; 13 ins. pitch ; 4 strands \ x t,1, strip. 2. 8-ins. propellers ; 25 ins. pitch ; 6 strands of same. 3. 9-ins. propellers ; 32 ins. pitch ; 6 strands of the same. The last named being the machine which won the Gamage Cup, span 20 ins., length 38 ins., A.R. 4, weight .11 ozs., revolutions of propellers per mir.ute 715 (the propellers were very hollow bladed). The above quoted models are all hand launched (1-1-P3-0 type) numbers 1 and 2 being medium speed propellers. Self-rising models 10-in. propellers, 21 ins. pitch, 8 strands \ x fa btrip. This machine has a length of 36 ins., span 24 ins., and is provided with a rectangular frame, so that the thrust is applied exactly in the direction of the line of flight. " Frictional wake" appears to be a great thing—any kind of tractor fairly has to hum to get a decent result. [With this latter remark we do not agree at all, as we know quite a number of tractors which give good results without humming.] A thing thai struck me in the competition referred to was that so many of the machines were very much over-powered. This makes a fine spectacular flight, but it is no test of their capacities, and no use in a distance or duration competition. The height is of no use for gliding, as tin- gliding angle is bad on account of the weight. (Not necessarily ; it depends very largely on the design of the model. We know of some very heavy models which have decidedly good gliding angles. Pre sumably, however, Mr. Noorduyn is referring here solely to the weight of rubber ; it will be noticed no reference is made 10 direc tional control, a most important factor in a distance competition.] Mr. E. N. Joyce (St. Margaret's Bay) is of much the same opinion, considering the amount of rubber employed by Mr. Dean as excessive, and instances the following : " I have made a model weighing 5^ ozs., driven by two 9-in. propellers with 6 strands i strip, and have had flights of 350 yds. at 70 ft. altitude. I thought this rather poor for my model's size, but according to Mr. Dean it is under-powered." A lady correspondent also writes somewhat naively as follows : " I am only a girl model aero maker, but I must say I do not agree with Mr. Dean. I consider he uses much too much rubber—has he really experimented satisfactorily ? " [Presumably he has not.] Mr. E. T. Simpson's Model Ble'rlot. Mr. Simpson writes, in reply to Mr. Adam's enquiry re his model Bleriot (August loth issue), that the data required are :— Duration, 30 to 40 sees. ; r.p.m., 700 approx. ; kind of propeller, Chauviere type ; 15 ins. pitch approx. ; number of turns given to rubber motor, 900 to 1,000. Exhibition in New Zealand. Mr. B. Hughes (hon. sec. Dunedin Aero Club) writes stating that an exhibition is to be held there during October or November, and that they would be pleased to receive exhibits from readers of FLIGHT. Their president's London agents are Messrs. Neild and Wilkinson, of St. Mary Axe, E.C., who are collecting the exhibits and forwarding them on. Model Club for Ladies. Miss M. Boundy (Branstow Lodge, 177, Croydon Road, Anerley, S.E.) would be pleased to hear from any ladies interested in model aviation, with a view to forming a club for ladies only. Replies in Brief. E. N. JOYCE.—Try Messrs. Gamage and Co., High Holborn. J. C. BALDIN.—Received with thanks, and will use later. J. AKERS.—Regret the drawings sent are not sufficiently clear for reproduction.
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