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Aviation History
1935
1935 - 1368.PDF
6i6 FLIGHT. TUNE 6, IQ^ HERE AND THERE R.A.F. Display News : The "Hornet Moth" : Reconnaissance Tests in the Circuit of Germany The "Comet" at the R.A.F. Display AMONG the 200 aircraft which will participate in the Six teenth Royal Air Force Display at Hendon on June 29 will be the D.H. "Comet" which won the England- Australia air race last October. It has since been purchased by the Air Ministry for experimental and research work, and now carries Service markings. It will be flown by a Martlesham pilot. The first event in the main programme will be a demonstra tion of air drill by Nos. 15, 18, and 57 (Light Bomber) Squad- Tons from Upper Hevford. These machines, which are " Harts," will take off simultaneously with the arrival of the members of the Royal Family attending the Display. A rehearsal of this item took place at Heyford last Friday. A Flight representative who was present writes that the " Harts " will make one circuit in squadron formation, and a second with No. 1.5 in "echelon port," No. 18 in vee, and No. 57 in "echelon starboard"; a third circuit will be made with No. 15 in line astern, No. 18 in " echelon port," and No. 57 in vee ; on the final circuit all three squadrons will dive past the Royal enclosure. Advance booking can be made with the Secretary, Royal Air Force Display, Hendon, Colindale 8242, and from all theatre and ticket agencies in London and the provinces. Tickets may also be obtained from any R.A.F. station. Boxes, which seat six, are on sale at £4, £5 and £7. Tickets for the main enclosures are priced 10s. and 5s. ; with reserved seats in the stands in these enclosures at 3s. and 2s. 6d. extra. An innovation is being made this year in providing a stand with reserved seats in the 2s. North (Watford Way) enclosure. Parties of twenty (or more) wishing to have seats in' this stand can book for the 2s. enclosure in advance at an inclusive charge of 4s. 6d. per person. Exit "Moth": Enter "Hornet" That the open-cockpit " Moth," for private owners and civilian use, will no longer be manufactured is announced by the De Havilland Aircraft Co., Ltd. The only open type of " Moth " to remain in production will be the " Tiger Moth," which is not greatly in private demand but is used by six teen CTOvernments for training purposes. The decision to discontinue the " Moth " has been taken after a period of ten years, during which something like 4,000 machines of this type have been sold to all parts of the world. No official announcement has yet been made by the com pany as to the replacement type of " Moth," but it is known that the " Hornet Moth," with side-by-side seating in an enclosed cabin, is shortly to be presented to the world as a machine intended for school, club, and private work. Capt. C de Havilland has personally supervised every step in the evolution of the " Hornet," from the initial conception to the final appearance of the machine. Pilots who have flown the " Hornet " are enthusiastic about its ease of handling, and a feature is that the controls have been so well harmonised that the rudder virtually be comes a ground control only. The " Hornet " can be taken off, flown through all normal manoeuvres and landed, without the use of the rudder. The performance will be superior to that of the " Moth," but quick take-off and good landing characteristics have not been sacrificed. Full particulars of the de Havilland " Hornet Moth " may not he published for the present, but it can be said that the machine is a biplane with the style of tapered wings which has characterised recent D.H. machines. Needless to say, the wings fold for storage. Elaborate arrangements have been made for quantity production, a special equipment of tools, jigs and plant having been prepared. In spending a whole year on getting the " Hornet " into production (the first machine took part in the King's Cup Race last year), and taking particular care over the accuracy of manufacture, the firm has almost certainly ensured future owners freedom from trouble. It is understood that orders on hand will keep the firm busy until well into the autumn, but " Hornets " will be produced at whatever rate is neces sary to meet the demand. The price will probably be in the neighbourhood of ^900. NON-STOP TO BUCHAREST is the aim of Mile. Braescu, who is to leave Croydon in the near future in a special Miles " Hawk Major " (" Gipsy Major "). The machine, which is named Aurd Vlaicu after the first Rumanian pilot, is a single-seater with coupe top, and is equipped to carry 100 gallons of fuel, giving a range of 1,500 miles. (Flight photograph.) "Rapier VI" Passes 100-hour Test The Napier " Rapier VI," the latest and most powerful version of the "Rapier" six teen-cylinder H-type engine, which was described in Flight of March 14, recently complete! its 100-hours' Service type test satisfactorily, and the makers disclose that the following figures were obtained and have been officially certified : — RATED POWER : 315/360 b.h.p. at 3,500 r.p.m., 4,000ft. and + 2.', lb. sq. in. boost. MAXIMUM POWER : 380 395 b.h.p. at 4,000 r.p.m., 5,800ft. and •+- 2', lb. sq in. boost. TAKE-OFF BOOST POWER : 860/833 b.h.p. at 3,500 r.p.m. and + 3| lb. sq. in. boost at sea-level. FUEL CONSUMPTION- : (D.T.D.230) at 310 h.p. and 3,500 r.p.m. : 0.58 pt h.p. hr. OIL CONSUMPTION : (D.T.D.109) at 3,500 r.p.m.: 6 to 10 ptshr. It is stated that the condition of the engine on dismantling was excellent. Wooden-hladed Airscrews Many readers of Flight will be aware that for some con siderable time the Airscrew Company, of Weybridge, has held the British rights for the manufacture of wooden airscrews with a cellulose covering. The originators of the schemt are the Schwartz Propeller Company, of Germany, and airscrews manufactured under the patents are rapidly gaining popu larity owing to their robustness and long life. The cellulose coating of the blades and hub is forced through the woven fabric base into the wood underneath under great pressure and forms a coating which, in addition to protecting the sur face of the airscrew, reinforces the natural strength of the wood The Airscrew Company has now made arrangements for going a step farther and extending the scheme to the manu facture of wooden blades for controllable-pitch airscrews. This latest process of the Schwartz Company consists of im pregnating the blade roots with a special material and securing them in suitable sleeves. The action is to increase the natural shear strength of the wood approximately three limes- Many attempts have been made to devise means for attach ing wooden blades to the metal hub of variable-pitch air- screws, but they have failed mostly on account ot the relatively low shear strength of wood. Inventors and <Je-
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