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Aviation History
1914
1914 - 0178.PDF
It is made of ^ > A birch, covered with fabric, and raised I in. above fuselage by means of a framework of 22-gauge piano wire. The propeller is a Bonn's Invincible type 9i in*, diameter, weight 3 drams, and has an effective pitch of 14 ins. It « dmeu by two skeins of four strands each of 1 in. strip rubber. Greater consistency has, however, been obtained with a similar propeller ol 9 ins. diameter, and an effective pitch of 134 ins. with the same amount of The model has an inclination of I in 13, but I think I in 8 would give a greater altitude in flight. Its best performances to date are the distance and duration records for this type of model, namely, 290 yds. nett, measured in a straight line, and 64 sees. The time occupied by the distance flight was 57 sees. The total weight of the model is 48 ors., and with the surfaces totalling 176 sq. ins., the loading works out at 3, 02s. per sq. ft. It is exceptionally stable, both laterally and longitudinally, and has been flown regularly in all weathers without breakage of any sort since last October. The South-Eastern Model Aero Club's Exhibition. By H. G. WILKINSON. On Thursday, January 29th, in response to an invitation from the Hon. Sec. of the S.E.M.Ae.C, I paid a visit to the exhibition of model aeroplanes organised by this club, and after what I saw at the Central Hall, Peckham, I should think the future for the club looks very promising. The extraordinary number of models exhibited was astonishing, and the great assembly of visitors a proof of the interest now being taken in flying, particularly the model aspect, where it is properly encouraged, as is evidently the case in this part of South London. Mr. Clark, the Secretary, was good enough to personally conduct me round the Exhibition, and fully explained the chief points of the various models, foremost of which being a large steam-driven monoplane shown by Mr. Groves. This model was of the front elevator type and measured some S ft. across, and has, I understand, made numerous successful flights. Another large "engined" monoplane called " the Gnat " was exhibited by Mr. J. Dollittle. Tliis was distinct from Mr. Groves model in that it was of the " propeller first" variety, and the engine was driven by compressed air instead of steam. Considerable interest was created when Mr, Dollittle demonstrated the capabilities of the multi-cylinder engine, which worked splendidly. Another model which appealed to a number of visitors was ascale copy of the well-known " Morane- Saulnier " monoplane, complete in nearly every detail. Mr. Plummer, the constructor, is to be congratulated on the fine workmanship displayed in this machine, and several others, com prising a large self-rising tractor monoplane (which proved successful in the last "Trophy" competition), a splendid biplane fitted with a four-bladed tractor-screw and a twin propeller duration monoplane. Mr. Clark exhibited a model of a " Bleriot " similar to the one used by Mr. Hucks in his recent demonstration of " looping the loop" at Hendon and elsewhere. The controls on this machine came in for a lot of attention, as everyone seemed keen on becoming efficient " pilots " there and then, working the warp and elevator levers and rudder bar. A very large rubber-driven tractor model weighing nearly 2 lbs. was shown by Mr. Westwood (the fuselage of this being, I am told, a complete departure from regular model practice), and Mr. Prance exhibited a cleverly-designed single-cylinder engine suitable for either steam or compressed air. ^ Other models worthy of note were those made by Messrs. A. Uiinnery, Brunton, Brown, L. Morris, C. and A. Beere, and F. W. Evans. In addition to the above, one item of more than usual interest to model-aeroplane constructors was the partially-finished 4-bladed propeller shown by Mr. A. Nicholls. Each of the blades was in a different stage of construction, showing the whole process of making this type of propeller. The writer is looking forward to the pleasure of seeing the majority of these models in actual flight, and if the foregoing par ticulars prove of interest to your " Model " readers, I shall be glad o communicate the results of the tests to you. [We shall be pieced to receive these results.] ' Model Club Exhibits at Olympia. J^l T"y K'.ad toJS. that Upt0 date' e«ht clubs have de«ded to take club stands at Olymp.a. We cannot see any real and con sistent reason why every model aero club in the neighbourhood of London at any rate, should not take a stand ; with the provincial &fdtS,°anCeeTnVather * ^"^ ma"er' '*" there is'thecTues- hZ i T consequent expense to be considered. But even here, if clubs as a whole cannot see their way to take a stand entirely on their own, we trust some individual members will exhtbit privately on their own account No M exhibition (u eh though they are) can possibly give a club the public advertisement that re taking of a stand at Olympia can do. Beside in InT^v, V lo tion there is lacking that larger ^aJS^SL^ilSi^ only arise when one sees them arranged side by side under tie same roof. Moreover, in all exhibiting together, there is exhibited to the public a display not only of friendly rivalry but of comrade- ship on a larger scale, which is absolutely essential if model aeroplaning is to make real progress and obtain any adequate and proper recognition. At the present day one can see on every hand how futile (io far as official recognition is concerned) is individual effort-how all powerful, how instant to claim immediate attention is a combined body, no matter of what or whom composed. Seeing that this is such a self-evident truth, it is curious that in every walk of life, in every trade and profession and also in sport there are always those who prefer to stand aloof, to plough the lonely furrow, rather than assist in the general cultivation of the soil, which at the present day—to bear the fruit it might do—must be tilled and cultp vated on a scientific scale, which can only be done by the umtea efforts of all those interested therein, and by a general pooling of the best results obtained by all. We think it is not too much to say that those who stand aloof from this concerted effort cannot have the real progress of any cause at heart. A Long-Distance Looping Model. A correspondent (Mr. H. W. A. Thorogood) sends us the fol lowing :—" For the oast six years I have been experimenting with single-propeller model aeroplanes, and have met with great success, With my latest model I have secured flights of half a mile at an altitude of 100 ft. and a duration of 60 sees. This model is 2 ft. 9 ins. by 2 ft., propelled with a Q-in. screw and 8 strands of rubber T3ff in. by ^V"1-. and weighs T,\ OZ. complete. " This model will also loop the loop ; on a recent occasion it made six consecutive loops, and covered a distance during this perform ance of a quarter of a mile. This model will fly just as well in a gale as in a calm." It is a pity Mr. Thorogood does not send us further particulars, with, say, drawings to scale, of his model, so that others could emulate its performances. Mr. R. V. Tivy's Steam Plant. We have received the following communication from Mr. Tivy :— " With reference to the photograph of my steam-driven model, and your interesting remarks thereon, which I see you publish this week, the account of the test with the steam plant appeared in FLIGHT some months ago, and I think you have overlooked the fact that this plant is not of the flash boiler type, but has a vertical centre flue boiler built with a cross tube and steam dome. I think I am quite right in saying that no model has yet been made to fly with a steam plant other than one of the flash boiler type, and everyone is rather prejudiced against the possibilities of centre tube boilers." Mr. Tivy is perfectly right; we had overlooked the fact to which he refers. We scarcely think, however, that everyone is prejudiced against centre tube boilers ; many no doubt are so, but we have heard more than one speak in their favour. Provided that one could be made of sufficient power and small enough weight to once rise the machine, it would in some ways undoubtedly be preferable to the other type. Our correspondent has not, we presume, tried the result of an " assisted " launch. Hand-launching a power-driven model, flying (for a model) at a high speed, is impracticable, but there are, of course, other means that could be employed. ® ® ® ® KITE AND MODEL AEROPLANE ASSOCIATION. Official Notices. British Model Records. Single screw, hand-launched Duration ... D. Driver... ... 85 sees. Twin screw, do /Distance ... R. Lucas 590 yards. (.Duration ... G. Haydeti ... 137 sees. Single screw.rise off ground./ Distance ... W.E.Evans ... 290 yards. * \ Duration ... W. E. Evans ... 64 sees. Twin screw, do /Distance ... L. H. Slatter ... 365 yards. „. , , , I Duration ... J. E. Louch ... 2 mins. 49 sees. Single-tractor screw, hand-/Distance ... C. C. Dutton ... 266yards. launched \ Duration ... J. E. Louch ... 91 sees. Do., off-ground Single screw hydro., off- / Distance . C. C. Dutton ' \ Duration ... J. E. Louch !: 178 190 yards. 94 sees, j-Duration ... L. H. Slatter ... 35 sees. Single-tractor, do., do. ... Duration ... C. C. Dutton ... 29 sees Twin screw, do., do. ... Duration... L. H. Slatter ... 60 sees. Exhibition at Felixstowe, May 6th to lbth.-The Felixstowe Advancement Association have applied for an aeronautical section to be organised in connection with their forthcoming exhibition in May next. Will any member or reader who is willing to end models send in their names to the hon. secretary ? It is hoped that a first-class exhibit will be sent, and members are asked to help the hon sec in this matter. r T <iUt n.£riZeS,~T1i.e W°men's Patriotic Aerial League, of which The Dowager Lady OHagan is the chairman, has kindly offered prizes for kite and model sTnPcVrSsf0crouan^y%dUr,ng ^ WU1 0th"S —"forw^d and help o7tt f/h^wV' Aer°nau?icaI T'ophies—Members and readers will be pleased to hear that Messrs. Gardiner and Co. (the well-known clothiers), Scotch Sous* Knightsbridge, are: kindly exhibiting in their window till end of month the Farrow Shield of this association, also the Mappir, and Webb Gold Trophy and ^•JEZ?* *A th«.G^rae-White C° f°' competition at Hendon PX 27, Victory Ro=d. Wimbledon. w. H. AKEHTJRST, Hon. Sec.
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