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Gratze monoplane

Страна: Великобритания

Год: 1909

Grahame-White - Bantam - 1919 - Великобритания<– –>Gray - monoplane - 1911 - Великобритания

M.Goodall, A.Tagg British Aircraft before the Great War (Schiffer)

Deleted by request of (c)Schiffer Publishing

P.Lewis British Aircraft 1809-1914 (Putnam)

Gratze Daisy

   The single-seat tractor Daisy or Dirigoplane monoplane was designed and built in 1909 by Eugene V. Gratze. It was powered by the eight-cylinder 40 h.p. J.A.P. engine, and was fitted with elevators mounted above the wings and with balancing flaps on the leading-edges towards the wing-tips. The wings were attached to the fuselage by universal joints which permitted variable incidence and variable dihedral. The propeller was mounted on a universal joint and was interconnected with the tail unit to facilitate turning. The Daisy first flew in November, 1909, and in June, 1910, was at Canewdon, near Southend, Essex, for further testing. Span, 40 ft. Length, 28 ft. 6 ins.

Журнал Flight

Flight, December 18, 1909


To the Editor of FLIGHT.
   SIR, - I herewith enclose a photograph of my monoplane, which contains several new and distinctive features which are protected by patents.
   First, the steering is executed by the propeller, which works on a universal swivel joint. The wings are also pivoted on a junction of the frame on a patent universal-joint which enables them to be swivelled in any direction, i.e., up or down, backwards or forwards, and to alter the angle of inclination or incidence.
   The motor is an 8-cyl. 40-h. p. air-cooled engine.
   Yours faithfully, p.p. E. V. GRATZE,

Flight, May 28, 1910

New Gratze Monoplane.

   FOLLOWING somewhat the lines of his old machine, Mr. Eugene V. Gratze has now completed his new monoplane, and is ready for trial at Cahewdon, near Southend-on-Sea, it being formerly christened "Daisy" last week by breaking a bottle of wine over the propeller. The steering is performed by means of the propeller, while the elevating is regulated by an overhead plane placed slightly forward of the main plane. Lateral stability is effected by means of two flaps at the ends of the main planes. Mr. Gratze has secured a good flying ground at Canewdon, which runs along the Crouch for two miles, and has a superficial area of about 200 acres, all perfectly flat. He will be pleased to arrange for anyone wishing to share the ground.

Журнал - Flight за 1909 г.
Gratze monoplane was at the Blackpool Meeting of October 1909 in this form.
Журнал - Flight за 1910 г.
Front view of the aeroplane with which Mr. Eugene Gratze is expert menting at Canewdon, near Southend, to which reference has been made rn these columns recently. This shows the general arrangement of the machine. The balancing flaps on the main planes are shown in their raised position.
P.Lewis - British Aircraft 1809-1914 /Putnam/
Rear view of Mr. Eugene Gratze's Machine. - The elevating is done by the central portion of the small upper plane in conjunction with the balancing flaps on the front edge of the main plane.