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词条 Albert A-60
释义

  1. Design and development

  2. Operational history

  3. Variants

  4. Specifications (A-60)

  5. References

  6. External links

name=Albert A-60 image=File:Albert A.60 at L'Aerophile Salon 1932.jpg caption=Albert A-60

}}{{Infobox Aircraft Type

 type=Light sports aircraft national origin=France manufacturer=Avions Albert designer=Edouard Albert first flight= Late 1930 introduced= retired= status= primary user= more users= produced= number built=2 program cost= unit cost= developed from= variants with their own articles=
}}

The Albert A-60 was a single engine, two seat, wooden sports monoplane designed and built in France in the early 1930s. Two were built and flown with three different engines.

Design and development

The A-60 was an all-wood, low wing cantilever monoplane. Its wing was in three parts, with a rectangular centre section and two outer, gently straight tapered panels with semi-elliptical tips. These outer panels were mounted with 4° of dihedral and carried ailerons each of {{convert|3.48|m|ftin}} span, occupying most of their trailing edges. The wing was built around two spars and was plywood covered. The A-60's landing gear was of the tailskid type and each independently mounted mainweel was on a robust, rubber sprung, vertical duralumin leg attached to the forward spar of the outer extremities, with a lighter, angled bracing strut to the rear longeron. The gear had a track of {{convert|1.90|m|ftin}} and was often entirely contained within vertical trouser fairings.[3]

The prototype aircraft was fitted with a {{convert|70|hp|kW|abbr=on|order=flip}}, five cylinder Walter NZ 70 radial engine in a rounded nose, with its cylinder heads exposed for cooling. Behind the engine the fuselage, all wood like the wings, was rectangular in section and built around four longerons with plywood surfacing; the upper surface was subdivided longitudinally into a ridge with two sloping faces. There were two open cockpits with small windscreens, one centred at about one-third chord and the other over the trailing edge. Disengagable dual control was fitted. The fuselage tapered towards the tail, where the empennage was conventional. Its parallel chord horizontal tail with rounded tips was placed at mid-fuselage height and there was a quadrant shaped fin and curved rudder hinged at the extreme tail, sloping in below to allow elevator movement. Control surfaces were unbalanced.

The A-60 first flew late in 1930. A second aircraft, the A-61 was built with a more powerful, uncowled {{convert|95|hp|kW|abbr=on|order=flip}} Salmson 7Ac seven cylinder radial engine.[5] This made its first flight on 9 September 1931.[3] The A-60 was re-engined with a {{convert|95|hp|kW|abbr=on|order=flip}} Renault 4Pb four cylinder upright inline engine and renamed the A-62.[7] It was flying by September 1931.[8]

The extra power of the two new engines naturally improved performance figures : the A-62 was {{convert|30|km/h|mph|abbr=on}} faster at maximum speed and {{convert|25|km/h|mph|abbr=on}} faster cruising and could reach altitudes {{convert|2800|m|ft|abbr=on}} higher. Its range, though, was 25% less.[7]

Operational history

Only nineteen days after the first flight of the A-62 it was competing in Le concours national d'avions de tourisme (The national contest for touring aircraft) along with the A-61, a Caudron C.232 Luciole and a Guillemin JG-10. Designer Edouard Albert flew the A-61 and Sautereau the A-62.[8] The Guillemain dropped out early and at the end of the initial flying tests the order was Caudron, A-61 and A-62. The final challenge was a {{convert|3000|km|mi|abbr=on}} tour but during the first leg on 5 October the A-62 crashed, killing the engineer Paul Breyrich and seriously injuring Sautereau. At the end of the tour, at Orly on 15 October, the Caudron was the winner and the A-61 in second place.[11]

Not much is known about the later career of the A-61 but in 1999 its remains were rediscovered and it is being restored[3] at the Musée Régional de l'Air at the Angers - Loire Airport in Angers.[13]

Variants

A-60
First prototype with {{convert|70|hp|kW|abbr=on|order=flip}} Walter NZ 70 5-cylinder radial engine. First flown late 1930.
A-61
Second prototype with {{convert|95|hp|kW|abbr=on|order=flip}} Salmson 7Ac radial engine.[5] First flown 9 September 1931.[3]
A-62
First prototype with {{convert|95|hp|kW|abbr=on|order=flip}} Renault 4Pb 4-cylinder upright inline engine. Flying by September 1931.[8]

Specifications (A-60)

{{Aircraft specs
|ref=Les Ailes 25 December 1930, p.3
|prime units?=met


|genhide=
|crew=One pilot
|capacity=One passenger
|length m=6.99
|length note=
|span m=11.45
|span note=
|height m=2.65
|height note=
|wing area sqm=15.0
|wing area note=
|aspect ratio=
|airfoil=
|empty weight kg=420
|empty weight note=equipped
|gross weight kg=750
|gross weight note=
|max takeoff weight kg=
|max takeoff weight lb=
|max takeoff weight note=
|fuel capacity=
|more general=


|eng1 number=1
|eng1 name=Walter NZ 70
|eng1 type=5-cylinder radial engine
|eng1 hp=70
|eng1 note=
|more power=
|prop blade number=2
|prop name=
|prop dia m=
|prop dia ft=
|prop dia in=
|prop dia note=


|perfhide=
|max speed kmh=172
|max speed note=
|cruise speed kmh=160
|cruise speed note=
|stall speed kmh=
|stall speed mph=
|stall speed kts=
|stall speed note=
|never exceed speed kmh=
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=
|minimum control speed kmh=
|minimum control speed mph=
|minimum control speed kts=
|minimum control speed note=
|range km=1000
|range note= at cruising speed
|endurance=
|ceiling m=4000
|ceiling note=practical
|g limits=
|roll rate=
|glide ratio=
|time to altitude= 18 mins to {{convert|2000|m|ft|abbr=on}}
|sink rate ms=
|sink rate ftmin=
|sink rate note=
|lift to drag=
|wing loading kg/m2=
|wing loading lb/sqft=
|wing loading note=
|fuel consumption kg/km=
|fuel consumption lb/mi=
|power/mass=
|thrust/weight=
|more performance=

  • Landing speed: {{convert|60|km/h|mph|abbr=on}}
  • anding and take-off distances: less than {{convert|100|m|ft|abbr=on}}

|avionics=
}}

References

1. ^1 2 3 {{cite journal |date=24 September 1931 |title=Le concours national d'avions de tourisme|journal=Les Ailes|pages=11|issue= 536|url=http://gallica.bnf.fr/ark:/12148/bpt6k6555785v/f11 }}
2. ^1 2 {{cite journal |date= |title= Les principaux avions de sport - Le Albert "A. 62"|journal=l'Aérophile Salon 1932|pages=6–7|url=http://gallica.bnf.fr/ark:/12148/bpt6k6553670f/f8 }}
3. ^1 {{cite journal |date=15 November 1931 |title= Concours |journal=l'Aérophile Salon 1932|pages=331|url=http://gallica.bnf.fr/ark:/12148/bpt6k6553569f/f11 }}
4. ^1 2 3 4 {{cite journal |last=Martin |first=Bernard |last2=Sparrow|first2=Dave|last3=Espérou|first3=Robert |title= F-1922|issue=Spring 2011|pages=029–030 |journal= Air Britain Archive }}
5. ^1 2 {{cite web |url=http://www.aviafrance.com/albert-a-61-aviation-france-9965.htm|title=Albert A-61 |author=Bruno Parmentier |date=29 April 2013 |accessdate=6 December 2015}}
6. ^1 {{cite web|url=http://www.musee-aviation-angers.fr/collections/avions-et-voilures-tournantes/ |title=avions, ULM et voilures tournantes - Musée Régional de l'Air |work=Espace Air Passion |accessdate=8 December 2015 |deadurl=yes |archiveurl=https://web.archive.org/web/20140517113827/http://www.musee-aviation-angers.fr/collections/avions-et-voilures-tournantes/ |archivedate=17 May 2014 }}
[1][2][3][4][5][6]
}}

External links

{{Commons category}}{{Albert aircraft}}

5 : French sport aircraft 1920–1929|Avions Albert aircraft|Low-wing aircraft|Single-engined tractor aircraft|Aircraft first flown in 1930
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