1. Design and development

2. Operational history

3. Specifications (J4)

4. References

5. External links

The Airmak J4 is an Italian ultralight and light-sport aircraft designed and produced by Airmak S.r.l. of Capua. The design's first flight was in early 2011. The aircraft is supplied complete and ready-to-fly.^[1]

Design and development

The aircraft is produced by Airmak S.r.l., a joint venture between Rafaelle Violetti and Valter Proietti of OMA Sud. It is manufactured at OMA Sud's Italian facility. Production commenced in the middle of 2012.^[1][2]

The J4 was designed to comply with the Fédération Aéronautique Internationale microlight rules and US light-sport aircraft rules. It features a strut-braced high-wing, a two-seats-in-side-by-side configuration enclosed cabin accessed by doors, fixed tricycle landing gear and a single engine in tractor configuration.^[1]

The aircraft fuselage is made from welded steel tubing, with riveted aluminum tail and wings. Its {{convert|9.44|m|ft|1|abbr=on}} span wing has an area of {{convert|11.6|m2|sqft|abbr=on}}, employs a custom Iannotta airfoil and mounts flaps. The standard engine used is the {{convert|100|hp|kW|0|abbr=on}} Rotax 912ULS four-stroke powerplant.^[1][3]

As of January 2017 the design does not appear on the Federal Aviation Administration's list of approved special light-sport aircraft.^[4]

Operational history

Reviewer Marino Boric described the design in a 2015 review as "elegant".^[1]

Specifications (J4)

|genhide=
|crew=one
|capacity=one passenger
|length m=7.40
|length ft=
|length in=
|length note=
|span m=9.44
|span ft=
|span in=
|span note=
|height m=2.49
|height ft=
|height in=
|height note=
|wing area sqm=11.6
|wing area sqft=
|wing area note=
|aspect ratio=
|airfoil=Iannotta
|empty weight kg=330
|empty weight lb=
|empty weight note=
|gross weight kg=600
|gross weight lb=
|gross weight note=
|fuel capacity={{convert|108|l}}
|more general=

|eng1 number=1
|eng1 name=Rotax 912ULS
|eng1 type=four cylinder, liquid and air-cooled, four stroke aircraft engine
|eng1 kw=75
|eng1 hp=
|prop blade number=3
|prop name=composite
|prop dia m=
|prop dia ft=
|prop dia in=
|prop note=

|perfhide=
|max speed kmh=
|max speed mph=
|max speed kts=
|max speed note=
|cruise speed kmh=200
|cruise speed mph=
|cruise speed kts=
|cruise speed note=
|stall speed kmh=60
|stall speed mph=
|stall speed kts=
|stall speed note=flaps down
|never exceed speed kmh=280
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=
|range km=1070
|range miles=
|range nmi=
|range note=
|endurance=
|ceiling m=6100
|ceiling ft=
|ceiling note=
|g limits=+3.8/-2,2
|roll rate=
|glide ratio=
|climb rate ms=4.5
|climb rate ftmin=
|climb rate note=
|time to altitude=
|sink rate ms=
|sink rate ftmin=
|sink rate note=
|lift to drag=
|wing loading kg/m2=51.7
|wing loading lb/sqft=
|wing loading note=
|power/mass=
|thrust/weight=
|more performance=
|avionics=

• Garmin Geopilot Plus 2

References

External links

• {{Official website|http://www.airmak.it/}}

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