GB376789A - Improvements in or relating to aeroplanes - Google Patents

Abstract

376,789. Aeroplanes modified for vertical flight. FIAT SOC. ANON., 250, Via Nizza, Turin, Italy. April 15, 1931, No. 11218. Convention date, April 16, 1930. [Class 4.] An aeroplane having a one-piece fuselage is fitted with a large diameter propeller and has means enabling it to alight or take off in a nearly vertical position utilizing the direct thrust of the screw in conjunction with the reaction on the planes. Fig. 4 shows a machine having an upturned tail provided with a skid 7 and two sets of wheels 5, 6 so that the machine can alight and take off in the position shown or upon the wheels 5, 6. The wheels 6 may be replaced by skids and the skid 7 mounted on a straight fuselage having its tail planes mounted on an upstanding fin. A machine with a longer fuselage also is described which at starting and alighting in a small space has to swing about its rear skid. Fig. 8 shows a modification in which hinged struts 35 are utilized when starting from or alighting in a small space. Twin propellers on concentric axes driven from a transverse engine or two direct driven screws on the wings may be used to prevent rotation of the fuselage due to back torque, or wide ailerons may be used to counteract the torque due to a single propeller. A variable pitch screw may be used. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following subject-matter. Fig. 10 (Cancelled) shows a modification in which the rear part 13 of the fuselage is hinged to the front part at 14 and can be locked in its normal position by a hook 19, Fig. 13 (Cancelled), operated by the pilot. A spring 21 anchored to the rear part 13 is connected to a block adjustable in a slide 24 by a link 25, the part 13 tending to rise when the block is in one position and to fall when the block is in the other position. This subjectmatter does not appear in the Specification as accepted.