Colomban MC-30 Luciole

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MC-30 Luciole
Colomban MC-30 Luciole G-LUCL SYW 01.09.12R edited-3.jpg
MC-30 Luciole amateur built in England in 2012
RoleHomebuilt recreational aircraft
Designer Michel Colomban
First flight9 March 2007 [1]
StatusPlans available (2015)

The Colomban MC-30 Luciole (English: Firefly ) is an ultra-lightweight plans-built single-seat low-wing tail-dragger monoplane, designed by the French aeronautical engineer Michel Colomban, creator of the tiny single-seat Colomban Cri-cri twin-engined aircraft and the MC-100 Ban-Bi two-seat aircraft. [2] [3] [4]

Contents

The aircraft is supplied as plans for amateur construction. [5]

Design and development

The Luciole is extremely light, weighing 97 kg (214 lb) empty. It has mixed construction of wood, plywood, metal, foam and glass reinforced plastic. The cantilever wings have foam ribs with a 1 mm plywood skin, sheathed in a thin layer of resin-bonded glass tissue. The Luciole is fitted with a V-Twin Briggs & Stratton four-stroke petrol engine directly driving a 2-bladed Arplast EcoProp 1.16 m (3.8 ft) diameter ground-adjustable propeller. [6] The aircraft is very economical, consuming only 4.5 litres/hour at 150 km/h (93 mph). [3] [4]

Operational history

Although about seven Lucioles have been built in France, only one [7] has been completed in the UK (and half a dozen are under construction [3] ), at least one is flying in Germany. [8] The UK aircraft was built under the auspices of the LAA, and to date has logged some 100 hours, flying under a test permit. The Luciole is awaiting full approval from the LAA.

LAA approval was required as the Luciole's wing loading of 43.5 kg/m2 was too high to benefit from original UK SSDR microlight sub-category. SSDRs (Single Seat De-Regulated) aircraft had to weigh less than 115 kg (254 lb) without fuel and pilot, and the wing loading could not be more than 10 kg/m2 [9]

However, the UK CAA changed the rules in May 2014, and the new SSDR rules state that the aircraft must be single seat, and must have an MTOW of 300 kg, i.e. it must weigh no more than 300 kg at takeoff, including pilot and fuel. Also, the stall speed must be 35 knots or less. There are no other design restrictions.

In a flight test report, Francis Donaldson, the LAA's Chief Engineer, declared that although some design compromises were "clearly not ideal", overall he felt "very impressed with Michel Colomban's new creation", saying the aircraft "performed as claimed, was practical and fun". Donaldson's major criticism was that the elevator's GRP spring (to provide self-centering and to impart "feel") was in the cockpit and not in the tail, so that if the elevator control linkage failed, the aircraft could suffer catastrophic lack of pitch-control as "the Luciole would most likely be totally unflyable". However, Colomban has disclosed plans to "modify the system to relocate the tailplane's self-centering trim spring in the rear fuselage, attaching directly to the tailplane .... so a failure of the (linkage) would no longer be disastrous". [3]

Variants

Colomban MC-30 Luciole
Standard model powered by a Briggs & Stratton four-stroke engine. [4]
Luxembourg Special Aerotechnics MC30E Firefly
Electric aircraft development of the basic design, first flown on 1 August 2011. Powered by 26 hp (19 kW) electric motor running from a 4.7-kWh Kokam battery. The aircraft weighs 113 kg (249 lb) empty and has a 55 minute endurance on a charge. The aircraft has achieved a top speed of 220 km/h (137 mph). [10]

Specifications (MC-30)

Data from Light Aviation [3]

General characteristics

Performance

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References

  1. ↑ Afflard, Jean-Claude (2007). "Du Cri-Cri à la Luciole". Les Cahiers du RSA (in French) (257): 46–47. Retrieved 23 July 2016.
  2. ↑ Experimental Aircraft Association (2011). "Cri Cri". Archived from the original on 7 November 2011. Retrieved 7 September 2011.
  3. 1 2 3 4 5 LAA "Light Aviation" magazine May 2011
  4. 1 2 3 Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 110. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  5. ↑ Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 116. Flying Pages Europe SARL, 2015. ISSN   1368-485X
  6. ↑ Arplace Helice closed in 2015
  7. ↑ GINFO Search Results
  8. ↑ Flugzeug MC-30 Luciole, Frankfurter Allgemeine Zeitung, retrieved 2016-08-07
  9. ↑ Light Aircraft Association Technical Leaflets Sep 2010
  10. ↑ Reynolds, Ric (August 2011). "Electric MC30E Firefly Flies With New Motor". Experimental Aircraft Association . Archived from the original on 17 December 2011. Retrieved 6 September 2011.
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