“Osprey Aircraft GP-4”的意思、由来-开放百科全书

The GP-4 is an experimental aircraft designed to fly cross country with two passengers {{convert|1200|nmi|km|0|abbr=on}} at {{convert|240|mph|km/h|0|abbr=on}}.^[1] Aircraft Spruce & Specialty Co has the rights to distribute the kits for the aircraft, while the plans are distributed by Osprey Aircraft.^[2]^[3]^[4]^[5]

Design and development

The GP-4 is the fourth aircraft from designer George Pereira, It is a low wing side-by-side retractable gear aircraft of wood construction. It has a single spar stressed to +8 to -6G loading.^[2]^[3]^[6]

The aircraft's wooden construction is labor-intensive and an estimated 3000–4000 hours are required to construct it.^[2]^[3]

Operational history

In 1984 The GP-4 won the Grand Champion Custom Built and the Outstanding New Design awards at the Experimental Aircraft Association Airventure airshow in Oshkosh, Wisconsin.^[7]

Specifications GP-4

|genhide=
|crew=one
|capacity=one passenger
|length m=
|length ft=21
|length in=6
|length note=
|span m=
|span ft=24
|span in=
|span note=
|height m=
|height ft=
|height in=
|height note=
|wing area sqm=
|wing area sqft=104
|wing area note=
|aspect ratio=
|airfoil=Laminar 63 Series
|empty weight kg=
|empty weight lb=1260
|empty weight note=
|gross weight kg=
|gross weight lb=2000
|gross weight note=
|fuel capacity={{convert|54|u.s.gal}}
|more general=

|perfhide=
|max speed kmh=
|max speed mph=
|max speed kts=
|max speed note=
|cruise speed kmh=
|cruise speed mph=
|cruise speed kts=
|cruise speed note=
|stall speed kmh=
|stall speed mph=
|stall speed kts=
|stall speed note=
|never exceed speed kmh=
|never exceed speed mph=255
|never exceed speed kts=
|never exceed speed note=
|range km=
|range miles=1100
|range nmi=
|range note=75% Power 240mph
|endurance=
|ceiling m=
|ceiling ft=20000
|ceiling note=
|g limits=
|roll rate=
|glide ratio=
|climb rate ms=
|climb rate ftmin=2200
|climb rate note=
|time to altitude=
|lift to drag=
|wing loading kg/m2
|wing loading lb/sqft=
|wing loading note=
|power/mass=
|thrust/weight=
|more performance=
|avionics=
}}

See also

References

1. ^{{cite web|url=http://www.ospreyaircraft.com/gp4.htm |title=Osprey Aircraft/ GP-4 |publisher=Ospreyaircraft.com |date= |accessdate=2012-10-13}}
2. ^¹²Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 114. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
3. ^¹²Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 120. Flying Pages Europe SARL, 2015. {{ISSN|1368-485X}}
4. ^{{cite web|url=http://ospreyaircraft.com/order.htm |title=Osprey Aircraft/ GP-4 |publisher=Ospreyaircraft.com |date= |accessdate=2012-10-13}}
5. ^{{cite web|author=www.aircraftspruce.com |url=http://www.aircraftspruce.com/menus/kits/gp4.html |title=GP4 and Osprey from |publisher=Aircraft Spruce |date= |accessdate=2012-10-13}}
6. ^{{cite journal|title=Flying|volume=133|year=2006}}
7. ^{{cite web|url=http://all-aero.com/index.php/home2/7768-pereira-gp-4|title=Pereira GP-4|website=all-aero.com|accessdate=13 May 2017}}
8. ^{{cite web|url=http://www.ospreyaircraft.com/specs.htm |title=Osprey Aircraft/ GP-4 |publisher=Ospreyaircraft.com |date= |accessdate=2012-10-13}}