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A 430h.p. Fast Seaplane Fighter

A 430h.p. Fast Seaplane Fighter 120 AIRCRAFT ENGINEERIN G June, 1929 Th e "Macchi M 41 bis " Flying Boat is a Single-Seater designed for "Pursuit " Work with the Italian Navy H E Fiat A.20 single-seated " M 41 bis " Th e motor supports are of streamlined steel whole of the tail surfaces are protected against biplane ha s recently satisfactorily passed tube . The elevator and rudder are built up of th e water by wooden plating. th e official tests. It is of mixed wood The wing cellule has interplane struts of and steel construction in three sections: for­ streamlined steel tube and streamlined wires. Characteristic s ward in front of the wings is the pilot's seat Th e wings have two main wooden spars with Span ... ... 36 ft. (10·80 m.). with port-holes t o give a view in a forward and wooden ribs braced with steel tube and wire. Length ... ... 28 ft. 6 in. (8·67 m.). downward direction; the midships portion The side floats are of plywood and are sus­ Heigh t ... ... 10 ft. (3·12 m.). carries the engine supports and wings, while pended below the interplane struts. Total weight ... 3,280 lbs. (1,490 kg.). th e empennage is mounted on the after sec­ The fuel tanks, protected by "Semape Maximum speed.. . 159m.p.h. (255k.p.h.) tion. type " armour, are situated immediately below Minimum speed ... 52 m.p.h. (84 k.p.h.). Th e boat frame consists of spruce and nut th e engine. Climb to 16,400 ft. compression members and ash longerons covered Th e machine has been designed by Ing. (5,000 m.) ... 18 minutes. with birch plywood. The skin of the bottom Mario Castaldi. Power ... ... Fiat A/20, 430-h.p. consists of plywood and mahogany plate layers, engine. Reader s who are familiar with the develop­ with tarred fabric between. The pilot's seat is men t of Italian seaplanes will recognise tha t the of wood with an aluminium back and is fitted autogenously welded tube, the hinges being ' M 41 bis ' is a development of the earlier wit h a device for pulling off the parachute. of pressed steel sheet with bearings. The 200 h.p . 'M 7 ter.' The Parseval-Naatz Airship 28 is protected by a skid, while an air inflated H E Parseval-Naatz 28, th e first ship t o have car, the gas escaping through a trunk running T bumping bag is fitted underneath the bow been built by W . L. F . G. for some years, is up the centre of the ship. Pressure is main­ end of th e car. A fireproof bulkhead separates approaching completion at Seddin. Three taine d by a ballonet which is placed over the car and Herr Naatz has patented an arrange­ th e engine from the car, which can carry five semi-rigid airships were produced by this men t for the automatic regulation of pressure, persons—pilot, mechanic and three passengers. company during the war, but since then they hav e been quiescent. Up till the end of of which details are not at present available. The mechanic is able t o work on the engine from th e inside through a window, though it does hostilities the works were at Bitterfeldt, Air to the ballonet is, however, also supplied not seem possible that any large repairs could bu t soon afterwards they were moved to throug h a scoop in the propeller slip-stream be carried out. Seddin, which formerly belonged to the German in the manner first invented by the British Naval Airship Service. A maximum speed of 50 m.p.h. is expected and this should certainly be attained, for the The P.N.28 is a semi-rigid of 65,000 cub. ft. Characteristic s of the Parseval-Naatz 28 envelope is of good shape and great care has capacity built on thoroughly up-to-date lines, Airshi p been taken to carry everything possible inside. Her r von Sigsfeld and Dr. Naatz being respon­ The ship's low height should make her easy to sible for its design. Volume .. .. 65,000 cub. ft. handle on the ground. The keel runs almost the entire length of Length .. .. 39·5 metres (130 ft. This airship is being buil t for a privat e firm for the airship inside the envelope and in it arc 4 in.). advertising purposes and her future will be housed the petrol and water ballast tanks and Maximum diameter 9 m. (30 ft.). watched with interest. bags. It also takes the weight of the car Engine .. .. 80 h.p . Siemens-Halske and engine suspended from the upper surface We are indebted to the Parseval Company S.H.11. and Captain Boothby, their English agent, for and provides a walking way from one part of th e above information. the ship to the other. Naval Airship Service in 1915 and tried out on The tail fins, which are stream-lined and S.S.I, and adopted in all R.N.A.S. non-rigid internally braced, are carried on a cruciform Th e Westlan d "Four " girder which runs up through the hull at the airships during the war. I t is understood tha t Imperial Airways, Ltd., end of the keel. An excellent point in the The car is stream-lined in section, and is hav e placed an order for one of the three- design is that it is possible to clmb this girder totally enclosed. It is suspended immediately engined Westland monoplanes described in so as to get a t the control wires runnin g to the below the keel, thus reducing the height of the our las t issue. It is t o be used b y th e company's rudders and elevators. ship to a minimum. The engine is a Siemens- special charter departmen t for taxi-plane flights Halske of 80 h.p. and, in contradiction to from London to anywhere in Europe. The The nose is stiffened in th e traditiona l Parseval usual airship practice, is air-cooled. The machine carries four passengers and is powered manner by 12 umbrella-like ribs, and near the petrol tank, containing fuel for 10 hours, is b y three A.D.C. "Cirrus" or "Hermes" bow is a small mooring platform. placed above the car and forward of th e engine, engines. It is th e first small multi-engined aero­ I n the gangway are the gas and air valves, which is entirely unenclosed. The propeller plane to be bought by Imperial Airways, Ltd th e former valve being placed well behind the http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aircraft Engineering and Aerospace Technology Emerald Publishing

A 430h.p. Fast Seaplane Fighter

Aircraft Engineering and Aerospace Technology , Volume 1 (4): 1 – Apr 1, 1929

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0002-2667
DOI
10.1108/eb029131
Publisher site
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Abstract

120 AIRCRAFT ENGINEERIN G June, 1929 Th e "Macchi M 41 bis " Flying Boat is a Single-Seater designed for "Pursuit " Work with the Italian Navy H E Fiat A.20 single-seated " M 41 bis " Th e motor supports are of streamlined steel whole of the tail surfaces are protected against biplane ha s recently satisfactorily passed tube . The elevator and rudder are built up of th e water by wooden plating. th e official tests. It is of mixed wood The wing cellule has interplane struts of and steel construction in three sections: for­ streamlined steel tube and streamlined wires. Characteristic s ward in front of the wings is the pilot's seat Th e wings have two main wooden spars with Span ... ... 36 ft. (10·80 m.). with port-holes t o give a view in a forward and wooden ribs braced with steel tube and wire. Length ... ... 28 ft. 6 in. (8·67 m.). downward direction; the midships portion The side floats are of plywood and are sus­ Heigh t ... ... 10 ft. (3·12 m.). carries the engine supports and wings, while pended below the interplane struts. Total weight ... 3,280 lbs. (1,490 kg.). th e empennage is mounted on the after sec­ The fuel tanks, protected by "Semape Maximum speed.. . 159m.p.h. (255k.p.h.) tion. type " armour, are situated immediately below Minimum speed ... 52 m.p.h. (84 k.p.h.). Th e boat frame consists of spruce and nut th e engine. Climb to 16,400 ft. compression members and ash longerons covered Th e machine has been designed by Ing. (5,000 m.) ... 18 minutes. with birch plywood. The skin of the bottom Mario Castaldi. Power ... ... Fiat A/20, 430-h.p. consists of plywood and mahogany plate layers, engine. Reader s who are familiar with the develop­ with tarred fabric between. The pilot's seat is men t of Italian seaplanes will recognise tha t the of wood with an aluminium back and is fitted autogenously welded tube, the hinges being ' M 41 bis ' is a development of the earlier wit h a device for pulling off the parachute. of pressed steel sheet with bearings. The 200 h.p . 'M 7 ter.' The Parseval-Naatz Airship 28 is protected by a skid, while an air inflated H E Parseval-Naatz 28, th e first ship t o have car, the gas escaping through a trunk running T bumping bag is fitted underneath the bow been built by W . L. F . G. for some years, is up the centre of the ship. Pressure is main­ end of th e car. A fireproof bulkhead separates approaching completion at Seddin. Three taine d by a ballonet which is placed over the car and Herr Naatz has patented an arrange­ th e engine from the car, which can carry five semi-rigid airships were produced by this men t for the automatic regulation of pressure, persons—pilot, mechanic and three passengers. company during the war, but since then they hav e been quiescent. Up till the end of of which details are not at present available. The mechanic is able t o work on the engine from th e inside through a window, though it does hostilities the works were at Bitterfeldt, Air to the ballonet is, however, also supplied not seem possible that any large repairs could bu t soon afterwards they were moved to throug h a scoop in the propeller slip-stream be carried out. Seddin, which formerly belonged to the German in the manner first invented by the British Naval Airship Service. A maximum speed of 50 m.p.h. is expected and this should certainly be attained, for the The P.N.28 is a semi-rigid of 65,000 cub. ft. Characteristic s of the Parseval-Naatz 28 envelope is of good shape and great care has capacity built on thoroughly up-to-date lines, Airshi p been taken to carry everything possible inside. Her r von Sigsfeld and Dr. Naatz being respon­ The ship's low height should make her easy to sible for its design. Volume .. .. 65,000 cub. ft. handle on the ground. The keel runs almost the entire length of Length .. .. 39·5 metres (130 ft. This airship is being buil t for a privat e firm for the airship inside the envelope and in it arc 4 in.). advertising purposes and her future will be housed the petrol and water ballast tanks and Maximum diameter 9 m. (30 ft.). watched with interest. bags. It also takes the weight of the car Engine .. .. 80 h.p . Siemens-Halske and engine suspended from the upper surface We are indebted to the Parseval Company S.H.11. and Captain Boothby, their English agent, for and provides a walking way from one part of th e above information. the ship to the other. Naval Airship Service in 1915 and tried out on The tail fins, which are stream-lined and S.S.I, and adopted in all R.N.A.S. non-rigid internally braced, are carried on a cruciform Th e Westlan d "Four " girder which runs up through the hull at the airships during the war. I t is understood tha t Imperial Airways, Ltd., end of the keel. An excellent point in the The car is stream-lined in section, and is hav e placed an order for one of the three- design is that it is possible to clmb this girder totally enclosed. It is suspended immediately engined Westland monoplanes described in so as to get a t the control wires runnin g to the below the keel, thus reducing the height of the our las t issue. It is t o be used b y th e company's rudders and elevators. ship to a minimum. The engine is a Siemens- special charter departmen t for taxi-plane flights Halske of 80 h.p. and, in contradiction to from London to anywhere in Europe. The The nose is stiffened in th e traditiona l Parseval usual airship practice, is air-cooled. The machine carries four passengers and is powered manner by 12 umbrella-like ribs, and near the petrol tank, containing fuel for 10 hours, is b y three A.D.C. "Cirrus" or "Hermes" bow is a small mooring platform. placed above the car and forward of th e engine, engines. It is th e first small multi-engined aero­ I n the gangway are the gas and air valves, which is entirely unenclosed. The propeller plane to be bought by Imperial Airways, Ltd th e former valve being placed well behind the

Journal

Aircraft Engineering and Aerospace TechnologyEmerald Publishing

Published: Apr 1, 1929

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