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Mignet HM.14

March 04, 2024

The Mignet HM.14 Flying Flea (Pou du Ciel literally "Louse of the Sky" in French) is a single-seat light aircraft first flown in 1933, designed for amateur construction. It was the first of a family of aircraft collectively known as Flying Fleas.

Mignet HM.14
HM.14 at The Science Museum at Wroughton
Role Single-seat light aircraft
Manufacturer homebuilt aircraft
Designer Henri Mignet
First flight 10 September 1933
Introduction 1933
Produced 1933-today

Development edit

The HM.14 was designed by French radio engineer Henri Mignet. It was the result of his ambition to design a safe aeroplane that could be built quickly and cheaply by any amateur familiar with simple woodwork and metalwork skills. It followed a progressive series of designs, of which the HM.8 monoplane was already successful as an amateur-built aircraft. On 10 September 1933, at the Bois de Bouleaux near Soissons, Mignet piloted the first flight of the HM.14. In the following months, he made many flights with progressive modifications to improve its handling and performance, totalling 10 hours test-flying time. He described the HM.14 as his Pou no.4, presumably counting from the HM.11, that featured a large pivoting flap between the fixed front and rear wings. The prototype HM.14 had a wingspan of 6 m (20 ft). It was powered by an Aubier et Dunne 540 cc three-cylinder two-stroke motorcycle engine, producing about 17 hp (13 kW) at 4,000 rpm. The engine was connected to the propeller shaft via a chain drive with a 2.5:1 reduction ratio. Subsequent examples were built with many optional engine and wingspan variations.[1]

In September 1934, the French aeronautical magazine Les Ailes published Mignet's article Le Pou du Ciel, in which he described the HM.14. In November 1934, he published his book Le Sport de l'Air that gave all the dimensioned details of materials, plus descriptions and techniques, to enable readers to construct and fly their own HM.14s without further specialist help. In September 1935, the Air League published an English translation of Le Sport de l'Air, and it was also serialised in the October, November and December 1935 issues of the magazine Newnes' Practical Mechanics.[1]

Design edit

 
Side view of an HM.14 on display at MOTAT in Auckland

The HM.14 is most commonly described as a tandem wing aircraft, although the main wing overlaps the rear wing in the basic design, so it almost qualifies as a highly staggered biplane without a horizontal tail. Construction of the airframe employs mostly birch plywood sheet, spruce laths, steel tubing, steel cables, proprietary metal fittings and fixings, adhesives, and linen fabric.[1]

Unlike conventional aircraft, the HM.14 has no ailerons or elevators, and no foot-operated flight controls. The flight control system comprises a conventional control stick. Fore-and-aft movement of the stick is transmitted via cables to the rear underside of the main wing, that is supported by a single pivot at the front underside, mounted on a pylon on the fuselage. Rearward movement of the stick pulls the cables, and increases the pitch and therefore the lift of the main wing. The aircraft will then pitch up, due to the centre of pressure being forward of the center of gravity. Forward stick movement has the reverse effect. Resistance to stick movement is usually an aerodynamic force from the main wing, but there is also a rubber spring (bungee) pulling down on the leading edge of the wing, and a telescopic strut behind the pilot's head limits the total wing movement. Side-to-side movement of the stick controls the all-moving rudder via cables. In flight, this produces a stable rolling motion, as required in a banked turn, because the wings both have dihedral. That rolling characteristic is not safely available during take-off or landing, so crosswinds are not easily tolerated.[1][2]

Operational history edit

  • In late November 1934, Mignet exhibited his HM.14 at the Salon l'Aéronautique au Grand Palais in Paris, followed in early December by a public flying demonstration at Paris-Orly Airport.[1]
  • On 13 August 1935, Mignet piloted his HM.14 across the English Channel from Saint-Inglevert Airfield to Lympne Airport, and on 17 August displayed it to the press at Shoreham Airport.[1]
  • On 5 December 1935, Stephen Appleby piloted his HM.14 (G-ADMH) from Lympne Airport to Saint-Inglevert Airfield.[3]
  • On 13 April 1936, the Aero-8 Flying Club hosted a rally at Ashingdon, Essex, that attracted eight complete British-built HM.14s.[1]
  • On 3 August 1936, the First International Flying Flea Challenge Trophy Race was held at Ramsgate Airport, where three French and six British HM.14s attended. Various other aircraft types, including a HM.18 flown by Henri Mignet, gave flying displays. The Flying Flea handicap race was won by Edouard Bret in a HM.14 powered by a 17 hp Aubier et Dunne engine, while Stephen Appleby came second in G-ADMH, and Robert Robineau took third place.[4]

Variants edit

Mignet provided drawings for alternative 6 m and 5 m span wings. The choice usually depended on the power and weight of the intended engine. He specified no particular engine, and the choice often depended on local availability and cost. In France, engines for HM.14s in the 1930s included 17 hp Aubier et Dunne 540 cc three-cylinder two-stroke, 25 hp Mengin B (Poinsard) four-stroke two-cylinder boxer, 16 hp Clerget, 40 hp Salmson radial. In the UK, popular air-cooled engines were 16 hp Scott Flying Squirrel A2S 650 cc, 25 hp Anzani 1100 cc V-twin, 17–23 hp Douglas Sprite 500–750 cc, 34 hp Bristol Cherub 1100 cc. Conversions of water-cooled engines included 28 hp Carden-Ford 1200 cc and 13 hp Austin 7 750 cc four-cylinder types. The choice of engine and propeller combination also determined the option to drive the propeller directly from the crankshaft, or via a reduction chain drive or gearing.[1][5]

On 14 July 1935, at Heston Aerodrome, Stephen Appleby piloted the first flight of his HM.14 (G-ADMH), the first to fly in the UK. On 24 July 1935, the Air Ministry awarded it the first ever Authorisation to Fly document, being equivalent to a UK Certificate of Airworthiness with additional conditions and limitations. Following a forced landing, it was repaired with modifications designed by L.E. Baynes, at the factory of Abbott-Baynes Sailplanes. The modifications included a new 6 metres (20 ft) span front wing with a repositioned wing pivot, a partial engine cowling, and a low-mounted radiator for the existing water-cooled Carden-Ford engine. The aircraft was later converted to replace the wing control cables with twin "push-rods". Following the publicity of the aircraft and those personalities, many British HM.14s under construction acquired similar features. In April 1936, Baynes made improvements to the Flying Flea design, similar to those on Appleby's HM.14, plus further major modifications. Those included a 6.7 metres (22 ft) newly designed front wing with two outboard wing pivots, that eliminated wing-bracing wires, hence the name Baynes Cantilever Pou. The prototype of that (G-AEGD), plus a later example (G-AEJD), were extensively test-flown and demonstrated by Appleby.[2][3][5]

In the UK, variations of the HM.14 were made by about 200 serious amateurs. A handful of companies also hoped to produce kits and completed HM.14s, including Abbott-Baynes Aircraft, Dart Aircraft, F. Hills & Son, Luton Aircraft, E.G. Perman and Company, and Puttnam Aircraft Company. Up to the start of World War II in September 1939, UK Authorisations to Fly were issued to 76 HM.14s, while registrations were issued for a further 45 projected examples.[1]

Accidents and incidents edit

  • On 19 August 1935, a HM.14 crashed fatally at Algiers, pilot Monsieur Marignan.
  • On 14 September 1935, a HM.14 crashed fatally at Marseilles, pilot Henri Chapalet.
  • On 26 November 1935, a HM.14 crashed fatally at Caen, pilot Rene Besnard.
  • On 15 March 1936, a HM.14 crashed fatally at Sergnyin, Switzerland, pilot Monsieur Kuffer.
  • On 20 April 1936, a HM.14 (G-ADVL) crashed fatally at Renfrew aerodrome, pilot A.H. Anderson.
  • On 4 May 1936, a HM.14 (G-AEEW) crashed fatally at Penshurst Airfield, pilot Ambrose M. Cowell.
  • On 21 May 1936, a HM.14 (G-AEBS) crashed fatally at RAF Digby, pilot Sqn Ldr C.R. Davidson.
  • On 20 September 1936, a HM.14 (G-ADXY) suffered a fatal ground accident unrelated to the aircraft flight performance, pilot James Goodall.

By March 1936, Algerian and Swiss authorities had banned the flying of HM.14s, and the French Air Ministry stepped up its actions from cautionary notices to flight testing by the Armée de l'air, that resulted in an inconclusive published report. In June 1936, the French Minister for Air stopped all Flea flights in France, pending full-size wind tunnel tests at Chalais-Meudon. In July 1936, the published report described how pitch-up control could be lost in a shallow nose-down attitude, because the pivoting front wing reduced the separation from the rear wing (the "slot effect"), so that the aircraft could not be recovered from a dive into the ground. The effect was worsened if the centre of gravity had not been correctly calculated and adjusted. Mignet responded with several design changes, such as pivoting rear wing, different aerofoil contours on both wings, elimination of the overlap between the wings, and an adjustable fore-and-aft wing pivot location relative to the fuselage. In late 1936, those features, together with rigid wing control struts ("push-rods"), were embodied in an updated edition of his book Le Sport de l'Air. In August 1936, the Royal Aircraft Establishment (RAE) at Farnborough started full-size wind tunnel tests using HM.14 G-AEFV. In October 1936, the report was published, confirming the French test findings. The Air Ministry then stopped renewing the Authorisation to Fly documents of all HM.14-related aircraft that had not received approved modifications. After World War II, no HM.14s were granted UK Authorisations to Fly, although several further examples were built.[1]

Aircraft on display edit

 
HM.14 at the Newark Air Museum
 
HM.14 at the Shuttleworth Collection
 
HM.14 at the National Air and Space Museum
 
HM.14 at the Royal Air Force Museum Cosford

Specifications (Baynes-modified G-ADMH) edit

Data from British light aeroplanes : their evolution, development and perfection, 1920-1940[5]

General characteristics

  • Crew: 1
  • Length: 3.96 m (13 ft 0 in)
  • Wingspan: 6 m (19 ft 8 in)
  • Height: 1.68 m (5 ft 6 in)
  • Wing area: 12.73 m2 (137.0 sq ft)
  • Empty weight: 159 kg (351 lb)
  • Max takeoff weight: 247 kg (545 lb)
  • Powerplant: 1 × Carden-Ford 4-cylinder water-cooled in-line piston engine, 23 kW (31 hp)
  • Propellers: 2-bladed fixed pitch propeller

Performance

  • Maximum speed: 133 km/h (83 mph, 72 kn)
  • Cruise speed: 106 km/h (66 mph, 57 kn)
  • Stall speed: 52 km/h (32 mph, 28 kn)
  • Range: 243 km (151 mi, 131 nmi)
  • Rate of climb: 1.53 m/s (301 ft/min)
  • Wing loading: 19.4 kg/m2 (4.0 lb/sq ft)
  • Power/mass: 0.163 kW/kg (0.099 hp/lb)

References edit

  1. ^ a b c d e f g h i j Ellis & Jones (1990)
  2. ^ a b Morse (1992)
  3. ^ a b Appleby (1982)
  4. ^ Viner (1984)
  5. ^ a b c Ord-Hume, Arthur W.J.G. (2000). British light aeroplanes : their evolution, development and perfection, 1920-1940. GMS Enterprises. p. 414. ISBN 1-870384-76-8.
  6. ^ Ellis 2012
  7. ^ "Our Exhibits - Ashburton Aviation Museum". Aviationmuseum.co.nz. Retrieved 2014-06-25.
  8. ^ a b c d e f g h i j k l m Ogden (2009)
  9. ^ Ellis (2000)
  10. ^ a b Ogden (2007)
  11. ^ a b c d e f g h i j k l m "abpic.co.uk".
  12. ^ Lane Motor Museum. "Mignet HM.14". www.lanemotormuseum.org. Archived from the original on 3 August 2022.
  13. ^ a b c Ogden (2008)
  14. ^ North East Aircraft Museum (2007). . Archived from the original on 23 August 2011. Retrieved 15 July 2011.
  15. ^ "Mignet HM-14 Pou du Ciel - Fundació Parc Aeronàutic de Catalunya".

Further reading edit

  • Appleby, Stephen. On Home-made Wings. Aeroplane Monthly. March 1982
  • Ellis, Ken; Jones, Geoff. 1990. Henri Mignet and his Flying Fleas. Haynes Publishing ISBN 0-85429-765-0
  • Ellis, Ken (1998). The ABC of the Flying Flea, part 1. Air-Britain Archive (journal), No.3/1998
  • Ellis, Ken (2000). The ABC of the Flying Flea, part 8. Air-Britain Archive (journal), Summer 2000
  • Ellis, Ken (2012). Wrecks & Relics. 23rd Edition. Crecy Publishing ISBN 978-0-85979-172-4
  • Mignet, Henri (1934) Le Sport de l'Air (in French, 661 pages)
  • Mignet, Henri; ed: Chamier, John (1935) The Flying Flea: How to Build and Fly It. The Air League (English adaptation of Le Sport de l'Air)
  • Morse, William. Baynes: The Unknown Innovator. Aeroplane Monthly, June 1992
  • Ogden, Bob (2007). Aviation Museums and Collections of North America. Air-Britain. ISBN 0-85130-385-4
  • Ogden, Bob (2008). Aviation Museums and Collections of The Rest of the World. Air-Britain. ISBN 978-0-85130-394-9
  • Ogden, Bob (2009). Aviation Museums and Collections of Mainland Europe. Air-Britain. ISBN 978-0-85130-418-2
  • Ord-Hume, Arthur W.J.G. Britain's Flea craze, Aeroplane Monthly, May 1973
  • Ord-Hume, Arthur W.J.G. The First Home-Built Aeroplanes ISBN 978-1-84033-449-4 (Re-print of Practical Mechanics article on building the HM.14)*Viner, John. The Great Flea Race. Aeroplane Monthly, July 1984

External links edit

 
Wikimedia Commons has media related to Mignet HM.14.
  • English reprint of Mignet book

March 04, 2024
mignet, flying, flea, ciel, literally, louse, french, single, seat, light, aircraft, first, flown, 1933, designed, amateur, construction, first, family, aircraft, collectively, known, flying, fleas, science, museum, wroughtonrole, single, seat, light, aircraft. The Mignet HM 14 Flying Flea Pou du Ciel literally Louse of the Sky in French is a single seat light aircraft first flown in 1933 designed for amateur construction It was the first of a family of aircraft collectively known as Flying Fleas Mignet HM 14HM 14 at The Science Museum at WroughtonRole Single seat light aircraftManufacturer homebuilt aircraftDesigner Henri MignetFirst flight 10 September 1933Introduction 1933Produced 1933 today Contents 1 Development 2 Design 3 Operational history 4 Variants 5 Accidents and incidents 6 Aircraft on display 7 Specifications Baynes modified G ADMH 8 References 9 Further reading 10 External linksDevelopment editThe HM 14 was designed by French radio engineer Henri Mignet It was the result of his ambition to design a safe aeroplane that could be built quickly and cheaply by any amateur familiar with simple woodwork and metalwork skills It followed a progressive series of designs of which the HM 8 monoplane was already successful as an amateur built aircraft On 10 September 1933 at the Bois de Bouleaux near Soissons Mignet piloted the first flight of the HM 14 In the following months he made many flights with progressive modifications to improve its handling and performance totalling 10 hours test flying time He described the HM 14 as his Pou no 4 presumably counting from the HM 11 that featured a large pivoting flap between the fixed front and rear wings The prototype HM 14 had a wingspan of 6 m 20 ft It was powered by an Aubier et Dunne 540 cc three cylinder two stroke motorcycle engine producing about 17 hp 13 kW at 4 000 rpm The engine was connected to the propeller shaft via a chain drive with a 2 5 1 reduction ratio Subsequent examples were built with many optional engine and wingspan variations 1 In September 1934 the French aeronautical magazine Les Ailes published Mignet s article Le Pou du Ciel in which he described the HM 14 In November 1934 he published his book Le Sport de l Air that gave all the dimensioned details of materials plus descriptions and techniques to enable readers to construct and fly their own HM 14s without further specialist help In September 1935 the Air League published an English translation of Le Sport de l Air and it was also serialised in the October November and December 1935 issues of the magazine Newnes Practical Mechanics 1 Design edit nbsp Side view of an HM 14 on display at MOTAT in AucklandThe HM 14 is most commonly described as a tandem wing aircraft although the main wing overlaps the rear wing in the basic design so it almost qualifies as a highly staggered biplane without a horizontal tail Construction of the airframe employs mostly birch plywood sheet spruce laths steel tubing steel cables proprietary metal fittings and fixings adhesives and linen fabric 1 Unlike conventional aircraft the HM 14 has no ailerons or elevators and no foot operated flight controls The flight control system comprises a conventional control stick Fore and aft movement of the stick is transmitted via cables to the rear underside of the main wing that is supported by a single pivot at the front underside mounted on a pylon on the fuselage Rearward movement of the stick pulls the cables and increases the pitch and therefore the lift of the main wing The aircraft will then pitch up due to the centre of pressure being forward of the center of gravity Forward stick movement has the reverse effect Resistance to stick movement is usually an aerodynamic force from the main wing but there is also a rubber spring bungee pulling down on the leading edge of the wing and a telescopic strut behind the pilot s head limits the total wing movement Side to side movement of the stick controls the all moving rudder via cables In flight this produces a stable rolling motion as required in a banked turn because the wings both have dihedral That rolling characteristic is not safely available during take off or landing so crosswinds are not easily tolerated 1 2 Operational history editIn late November 1934 Mignet exhibited his HM 14 at the Salon l Aeronautique au Grand Palais in Paris followed in early December by a public flying demonstration at Paris Orly Airport 1 On 13 August 1935 Mignet piloted his HM 14 across the English Channel from Saint Inglevert Airfield to Lympne Airport and on 17 August displayed it to the press at Shoreham Airport 1 On 5 December 1935 Stephen Appleby piloted his HM 14 G ADMH from Lympne Airport to Saint Inglevert Airfield 3 On 13 April 1936 the Aero 8 Flying Club hosted a rally at Ashingdon Essex that attracted eight complete British built HM 14s 1 On 3 August 1936 the First International Flying Flea Challenge Trophy Race was held at Ramsgate Airport where three French and six British HM 14s attended Various other aircraft types including a HM 18 flown by Henri Mignet gave flying displays The Flying Flea handicap race was won by Edouard Bret in a HM 14 powered by a 17 hp Aubier et Dunne engine while Stephen Appleby came second in G ADMH and Robert Robineau took third place 4 Variants editMignet provided drawings for alternative 6 m and 5 m span wings The choice usually depended on the power and weight of the intended engine He specified no particular engine and the choice often depended on local availability and cost In France engines for HM 14s in the 1930s included 17 hp Aubier et Dunne 540 cc three cylinder two stroke 25 hp Mengin B Poinsard four stroke two cylinder boxer 16 hp Clerget 40 hp Salmson radial In the UK popular air cooled engines were 16 hp Scott Flying Squirrel A2S 650 cc 25 hp Anzani 1100 cc V twin 17 23 hp Douglas Sprite 500 750 cc 34 hp Bristol Cherub 1100 cc Conversions of water cooled engines included 28 hp Carden Ford 1200 cc and 13 hp Austin 7 750 cc four cylinder types The choice of engine and propeller combination also determined the option to drive the propeller directly from the crankshaft or via a reduction chain drive or gearing 1 5 On 14 July 1935 at Heston Aerodrome Stephen Appleby piloted the first flight of his HM 14 G ADMH the first to fly in the UK On 24 July 1935 the Air Ministry awarded it the first ever Authorisation to Fly document being equivalent to a UK Certificate of Airworthiness with additional conditions and limitations Following a forced landing it was repaired with modifications designed by L E Baynes at the factory of Abbott Baynes Sailplanes The modifications included a new 6 metres 20 ft span front wing with a repositioned wing pivot a partial engine cowling and a low mounted radiator for the existing water cooled Carden Ford engine The aircraft was later converted to replace the wing control cables with twin push rods Following the publicity of the aircraft and those personalities many British HM 14s under construction acquired similar features In April 1936 Baynes made improvements to the Flying Flea design similar to those on Appleby s HM 14 plus further major modifications Those included a 6 7 metres 22 ft newly designed front wing with two outboard wing pivots that eliminated wing bracing wires hence the name Baynes Cantilever Pou The prototype of that G AEGD plus a later example G AEJD were extensively test flown and demonstrated by Appleby 2 3 5 In the UK variations of the HM 14 were made by about 200 serious amateurs A handful of companies also hoped to produce kits and completed HM 14s including Abbott Baynes Aircraft Dart Aircraft F Hills amp Son Luton Aircraft E G Perman and Company and Puttnam Aircraft Company Up to the start of World War II in September 1939 UK Authorisations to Fly were issued to 76 HM 14s while registrations were issued for a further 45 projected examples 1 Accidents and incidents editOn 19 August 1935 a HM 14 crashed fatally at Algiers pilot Monsieur Marignan On 14 September 1935 a HM 14 crashed fatally at Marseilles pilot Henri Chapalet On 26 November 1935 a HM 14 crashed fatally at Caen pilot Rene Besnard On 15 March 1936 a HM 14 crashed fatally at Sergnyin Switzerland pilot Monsieur Kuffer On 20 April 1936 a HM 14 G ADVL crashed fatally at Renfrew aerodrome pilot A H Anderson On 4 May 1936 a HM 14 G AEEW crashed fatally at Penshurst Airfield pilot Ambrose M Cowell On 21 May 1936 a HM 14 G AEBS crashed fatally at RAF Digby pilot Sqn Ldr C R Davidson On 20 September 1936 a HM 14 G ADXY suffered a fatal ground accident unrelated to the aircraft flight performance pilot James Goodall By March 1936 Algerian and Swiss authorities had banned the flying of HM 14s and the French Air Ministry stepped up its actions from cautionary notices to flight testing by the Armee de l air that resulted in an inconclusive published report In June 1936 the French Minister for Air stopped all Flea flights in France pending full size wind tunnel tests at Chalais Meudon In July 1936 the published report described how pitch up control could be lost in a shallow nose down attitude because the pivoting front wing reduced the separation from the rear wing the slot effect so that the aircraft could not be recovered from a dive into the ground The effect was worsened if the centre of gravity had not been correctly calculated and adjusted Mignet responded with several design changes such as pivoting rear wing different aerofoil contours on both wings elimination of the overlap between the wings and an adjustable fore and aft wing pivot location relative to the fuselage In late 1936 those features together with rigid wing control struts push rods were embodied in an updated edition of his book Le Sport de l Air In August 1936 the Royal Aircraft Establishment RAE at Farnborough started full size wind tunnel tests using HM 14 G AEFV In October 1936 the report was published confirming the French test findings The Air Ministry then stopped renewing the Authorisation to Fly documents of all HM 14 related aircraft that had not received approved modifications After World War II no HM 14s were granted UK Authorisations to Fly although several further examples were built 1 Aircraft on display edit nbsp HM 14 at the Newark Air Museum nbsp HM 14 at the Shuttleworth Collection nbsp HM 14 at the National Air and Space Museum nbsp HM 14 at the Royal Air Force Museum CosfordAeroventure South Yorkshire Aircraft Museum HM 14 G AEJZ 6 Ashburton Aviation Museum Ashburton New Zealand HM 14 ZM AAM 7 Aviation Museum of Central Finland Tikkakoski HM 14 OH KAB 8 Aviodrome HM 14 replica G AEOF 8 Aviodrome HM 14 PH POU 8 Barcelona Airport HM 14 8 Brooklands Museum HM 14 replica G ADRY 9 Dart Airport Aviation Museum Mayville New York HM 14 10 Doncaster Museum and Art Gallery HM 14 G AEKR 11 Hellenic Airforce Museum HM 14 citation needed Lane Motor Museum Nashville Tennessee HM 14 12 Malta Aviation Museum Ta Qali HM 14 8 Midland Air Museum Coventry England HM 14 G AEGV 11 Musee de l Air et de l Espace HM 14 8 Musee du Chateau de Savigny HM 14 8 Musee Regional de l Air Angers Loire Airport HM 14 8 Museum of Science and Industry Manchester HM 14 BAPC 12 11 Museum of Transport and Technology Auckland HM 14 ZM AAA 13 NASM Udvar Hazy Center Washington DC HM 14 X15749 10 National Technical Museum Prague HM 14 8 Newark Air Museum HM 14 BAPC 43 11 Norfolk and Suffolk Aviation Museum Flixton HM 14 BAPC 115 11 North East Aircraft Museum HM 14 replica G ADVU 11 14 Parc Aeronautic de Catalunya In 1935 one HM 14 was built in the Spanish Republic It was left unfinished before the Spanish Civil War and was restored many years later It is now on display at the Parc Aeronautic de Catalunya 15 Prague Aviation Museum Kbely HM 14 8 Queensland Museum Brisbane Australia HM 14 13 Real Aeroplane Company Breighton HM 14 G ADXS 11 Royal Air Force Museum Cosford HM 14 G AEEH 11 Shuttleworth Collection HM 14 G AEBB with Bristol Cherub engine 11 Sinsheim Auto amp Technik Museum HM 14 D EMIL 8 Solent Sky Southampton HM 14 replica G ADZW 11 Stockholm Arlanda Airport HM 14 8 Stondon Transport Museum UK HM 14 replica G ADRG 11 Swiss Transport Museum Lucerne HM 14 HBMH8 8 The Science Museum at Wroughton HM 14 G AEHM 11 Wanaka Transport Museum Wanaka HM 14 ZM AAC 13 Yorkshire Air Museum HM 14 replica G AFFI 11 Specifications Baynes modified G ADMH editData from British light aeroplanes their evolution development and perfection 1920 1940 5 General characteristicsCrew 1 Length 3 96 m 13 ft 0 in Wingspan 6 m 19 ft 8 in Height 1 68 m 5 ft 6 in Wing area 12 73 m2 137 0 sq ft Empty weight 159 kg 351 lb Max takeoff weight 247 kg 545 lb Powerplant 1 Carden Ford 4 cylinder water cooled in line piston engine 23 kW 31 hp Propellers 2 bladed fixed pitch propellerPerformance Maximum speed 133 km h 83 mph 72 kn Cruise speed 106 km h 66 mph 57 kn Stall speed 52 km h 32 mph 28 kn Range 243 km 151 mi 131 nmi Rate of climb 1 53 m s 301 ft min Wing loading 19 4 kg m2 4 0 lb sq ft Power mass 0 163 kW kg 0 099 hp lb References edit a b c d e f g h i j Ellis amp Jones 1990 a b Morse 1992 a b Appleby 1982 Viner 1984 a b c Ord Hume Arthur W J G 2000 British light aeroplanes their evolution development and perfection 1920 1940 GMS Enterprises p 414 ISBN 1 870384 76 8 Ellis 2012 Our Exhibits Ashburton Aviation Museum Aviationmuseum co nz Retrieved 2014 06 25 a b c d e f g h i j k l m Ogden 2009 Ellis 2000 a b Ogden 2007 a b c d e f g h i j k l m abpic co uk Lane Motor Museum Mignet HM 14 www lanemotormuseum org Archived from the original on 3 August 2022 a b c Ogden 2008 North East Aircraft Museum 2007 Flying Flea G ADVU Archived from the original on 23 August 2011 Retrieved 15 July 2011 Mignet HM 14 Pou du Ciel Fundacio Parc Aeronautic de Catalunya Further reading editAppleby Stephen On Home made Wings Aeroplane Monthly March 1982 Ellis Ken Jones Geoff 1990 Henri Mignet and his Flying Fleas Haynes Publishing ISBN 0 85429 765 0 Ellis Ken 1998 The ABC of the Flying Flea part 1 Air Britain Archive journal No 3 1998 Ellis Ken 2000 The ABC of the Flying Flea part 8 Air Britain Archive journal Summer 2000 Ellis Ken 2012 Wrecks amp Relics 23rd Edition Crecy Publishing ISBN 978 0 85979 172 4 Mignet Henri 1934 Le Sport de l Air in French 661 pages Mignet Henri ed Chamier John 1935 The Flying Flea How to Build and Fly It The Air League English adaptation of Le Sport de l Air Morse William Baynes The Unknown Innovator Aeroplane Monthly June 1992 Ogden Bob 2007 Aviation Museums and Collections of North America Air Britain ISBN 0 85130 385 4 Ogden Bob 2008 Aviation Museums and Collections of The Rest of the World Air Britain ISBN 978 0 85130 394 9 Ogden Bob 2009 Aviation Museums and Collections of Mainland Europe Air Britain ISBN 978 0 85130 418 2 Ord Hume Arthur W J G Britain s Flea craze Aeroplane Monthly May 1973 Ord Hume Arthur W J G The First Home Built Aeroplanes ISBN 978 1 84033 449 4 Re print of Practical Mechanics article on building the HM 14 Viner John The Great Flea Race Aeroplane Monthly July 1984External links edit nbsp Wikimedia Commons has media related to Mignet HM 14 English reprint of Mignet book Retrieved from https en wikipedia org w index php title Mignet HM 14 amp oldid 1186144806, wikipedia, wiki, book, books, library,

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