1. Design and development

2. Variants

3. Specifications (Sirius)

4. See also

5. References

6. External links

The Alpaero Sirius, also called the Noin Sirius, is a French high-wing, strut-braced, pod-and-boom, cruciform tail, single-seat motor glider that was designed by Claude Noin and produced by his company, Alpaero of Châteauvieux, Hautes-Alpes. It was available as plans for amateur construction and also as a kit, but has been discontinued.^[1][2]

Design and development

Named for the star, the prototype Sirius was made from wood, tube and aircraft fabric and first flew in August 1984. The prototype had an {{convert|11|m|ft|1|abbr=on}} wingspan.^[2]

The production Sirius fuselage is predominately made from fibreglass, with wooden bulkheads. The {{convert|13.4|m|ft|1|abbr=on}} span tapered wing has a wooden spar and Styrofoam wing ribs reinforced with fibreglass and features air brakes on the top surface for glidepath control. The wing's leading edge is fabricated from hot-wire cut foam, laminated with fibreglass. The wing and rudder are fabric covered. The fixed landing gear is a centre-line bicycle gear, with auxiliary wing tip and tail wheels. The main wheel has a drum brake. The {{convert|18|kW|hp|0|abbr=on}} König SC 430 engine, or alternatively the {{convert|13.5|kW|hp|0|abbr=on}} JPX D-320 engine, is mounted behind the cockpit and beneath the tail boom in pusher configuration and features a propeller guard plate just behind the main wheel. The propeller is a fixed pitch two-bladed design with small diameter. The cockpit width is {{convert|53|cm|in|0|abbr=on}} and the best glide ratio is 23:1.^[1][2]

In 1998 the design was available as plans for US$220 or as a kit for US$7900. Building time from the kit was estimated as 700 hours.^[1]

Variants

Sirius-C

Model for the European microlight category.^[1]

Specifications (Sirius)

|genhide=
|crew=one
|capacity=
|length m=
|length ft=19.4
|length in=
|length note=
|span m=13.4
|span ft=
|span in=
|span note=
|height m=
|height ft=
|height in=
|height note=
|wing area sqm=14.30
|wing area sqft=
|wing area note=
|aspect ratio=
|airfoil=
|empty weight kg=142
|empty weight lb=
|empty weight note=
|gross weight kg=270
|gross weight lb=
|gross weight note=
|fuel capacity={{convert|19|l}}
|more general=

|eng1 number=1
|eng1 name=König SC 430
|eng1 type=three cylinder, two-stroke, radial engine
|eng1 kw=18
|eng1 hp=
|prop blade number=2
|prop name=fixed pitch wooden
|prop dia m=
|prop dia ft=
|prop dia in=
|prop note=

|perfhide=
|max speed kmh=130
|max speed mph=
|max speed kts=
|max speed note=
|cruise speed kmh=
|cruise speed mph=54
|cruise speed kts=
|cruise speed note=
|stall speed kmh=
|stall speed mph=30
|stall speed kts=
|stall speed note=
|never exceed speed kmh=
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=
|range km=
|range miles=150
|range nmi=
|range note=
|endurance=
|ceiling m=
|ceiling ft=
|ceiling note=
|g limits=+4.4/-2.2
|roll rate=
|glide ratio=23:1
|climb rate ms=2.0
|climb rate ftmin=
|climb rate note=
|sink rate ms=0.90
|sink rate ftmin=
|sink rate note=
|lift to drag=
|wing loading kg/m2=
|wing loading lb/sqft=
|wing loading note=
|more performance=
|avionics=
}}

See also

• List of gliders

• Maupin Windrose

References

External links

• {{Official website|http://alpaero.free.fr/popups/sirius_e.htm}}

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